In ΔABC, Cos A = 4/5, cosB = 3/5then a:b:c is

Answers

Answer 1

The ratio is 3:4:5.

Cosine by definition, is adjacent divided by hypotenuse, meaning that the value of the hypotenuse is 5. Then, we are given two other sides that are adjacent to angles A and B, which are 4 and 3 respectively.

This means that there are side lengths 3, 4, and 5, meaning that the ratio of the sides are 3:4:5.

Hope this helps.

頑張って!


Related Questions

Simplify. 4+5(8−10)2 Enter your answer in the box.

Answers

Answer:

-16

Step-by-step explanation:

4 + 5(8-10)2

4 + 5(-2)2

4 + 10(-2)

4 - 20

-16

The answer is: 24

I assume this is a question from k12

  4 + 5(8 - 10)^2

  4 + 5(-2)^2

  4 + 5(4)

  4 + 20

= 24

Hope this helps ^^

Point a is at (2,-8) and point c is at (-4,7). Find the coordinates of point b on ac such that the ratio of ab to bc is 2:1

Answers

Answer:(-2,2)

Step-by-step explanation:

Help me please because of the points

Answers

Answer:

C

Step-by-step explanation:

Because the dolphin increases his elevation, the amount he increases is added to the original elevation to get the second elevation.

Therefore:

-16 3/4 + 5x = -5 1/4

This option is not in the options but if we rearrange the left side from

- 16 3/4 + 5x

to:

5x - 16 3/4

We get the last option C.

Hope this helped!

Solve each calculation. Be sure to report your answer with the correct number of decimal places. 7.365 ms 0.250 ms + 10.3 ms ms 125.010 cL 4.1023 cL – 0.30 cL cL

Answers

Answer:

1.17.9

2. 120.61

Step-by-step explanation:

Answer:

17.9

120.61

Step-by-step explanation:

During a normal day, there are 280 planes taking off the airport, but the airport is a lot busier during Christmas. During the Christmas holidays, about 336 planes take off everyday from the airport

Compared with a normal day, how many more passengers depart from
the airport in a day during the Christmas holidays?

Answers

Answer:

56

Step-by-step explanation:

Answer:

6000

Step-by-step explanation:

we dont know how many people are in each plane but based on the average it should be this

Why is 4 + (-3) equal to 1?

Answers

This is because 4+(-3) is also 4-3. So that equals 1

Step-by-step explanation:

4+(-3)=1

because when you open brackets + and - will be -, so 4-3=1

21.406 in standard form

Answers

21.406 in standard form

Answer:

21406 X 10^3

2.1406 x 10^-1 is the answer for your question

A balloon is flcating 10 feet above the ground. How
far does the balloon need to drop to reach the
ground?

Answers

Answer:

10 feet

Step-by-step explanation:

if it is 10 feet above and needs to touch the ground it needs to drop that same amount

Answer:

10ft.

Step-by-step explanation:

if the balloon is floating 10ft from the ground the it can only drop 10ft to reach the ground.

*hope this helps. please give me brainliest, i only need four more *

A recipe says to use 1/5 cup of flour to make 7/10 serving of waffles. How many cups of flour are in one serving of waffles?

Answers

Don’t know the answer

The first number in an ordered pair of numbers that corresponds to a point on a coordinate system is what

Answers

Answer:

"abscissa"

Step-by-step explanation:

The first number in an ordered pair of numbers in a coordinate system is generally called abscissa.

Answer:

x value is the correct answer

Step-by-step explanation:

I just took the test 2021 thank me later

Point S is on line segment RT. Given ST = 3x

= 3x – 8, RT = 4x, and

RS = 4x 7, determine the numerical length of RT.

Answers

Answer:

RT = 20

Step-by-step explanation:

Given that,

Point S lies on the line segment RT.

We have, ST = 3x-8, RT = 4x and RS = 4x-7

It is clear that, RT = RS+ST

Putting the values, we get :

4x = 4x-7 + 3x-8

Taking like terms together,

4x-4x-3x = -7-8

-3x = -15

x = 5

Put the value of x in RT = 4x.

So,

RT = 4(5)

RT = 20

Hence, length of RT = 20.

what does y=-(7)/(2)x+5 look like on a graph.

Answers

Answer:

Here you go buddy.

If the probability that your DVD player breaks down before the extended warranty expires is 0.034, what is the probability that the player will not break down before the warranty expires

Answers

Answer:

0.966

Step-by-step explanation:

Given that:

Probability of DVD player breaking down before the warranty expires = 0.034

To find:

The probability that the player will not break down before the warranty expires = ?

Solution:

Here, The two events are:

1. The DVD player breaks down before the warranty gets expired.

2. The DVD player breaks down after the warranty gets expired

In other words, the 2nd event can be stated as:

The DVD does not break down before the warranty gets expired.

The two events here, have nothing in common i.e. they are mutually exclusive events.

So, Sum of their probabilities will be equal to 1.

[tex]\bold{P(E_1)+P(E_2)=1}\\\Rightarrow 0.034+P(E_2)=1\\\Rightarrow P(E_2)=1-0.034\\\Rightarrow P(E_2)=\bold{0.966}[/tex]

Use the general slicing method to find the volume of the following solid. The solid whose base is the region bounded by the curve y=38cosx and the​ x-axis on − π 2, π 2​, and whose cross sections through the solid perpendicular to the​ x-axis are isosceles right triangles with a horizontal leg in the​ xy-plane and a vertical leg above the​ x-axis. A coordinate system has an unlabeled x-axis and an unlabeled y-axis. A curve on the x y-plane labeled y equals 38 StartRoot cosine x EndRoot starts on the negative x-axis, rises at a decreasing rate to the positive y-axis, and falls at an increasing rate to the positive x-axis. The region below the curve and above the x-axis is shaded. A right triangle extends from the x y-plane, where one leg is on the x y-plane from the x-axis to the curve and is perpendicular to the x-axis, and the second leg is above the x-axis and is perpendicular to the x y-plane. y=38cosx

Answers

Answer:

The volume of the solid = 1444

Step-by-step explanation:

Given that:

The region of the solid is bounded by the curves [tex]y = 38 \sqrt{cos \ x}[/tex] and the axis on [tex][-\dfrac{\pi}{2}, \dfrac{\pi}{2}][/tex]

using the slicing method

Let say the solid object extends from a to b and the cross-section of the solid perpendicular to the x-axis has an area expressed by function A.

Then, the volume of the solid is ;

[tex]V = \int ^b_a \ A(x) \ dx[/tex]

However, each perpendicular slice is an isosceles leg on the xy-plane and vertical leg above the x-axis

Then, the area of the perpendicular slice at a point [tex]x \ \epsilon \ [-\dfrac{\pi}{2},\dfrac{\pi}{2}][/tex] is:

[tex]A(x) =\dfrac{1}{2} \times b \times h[/tex]

[tex]A(x) =\dfrac{1}{2} \times(38 \sqrt{cos \ x})^2[/tex]

[tex]A(x) =\dfrac{1444}{2} \ cos \ x[/tex]

[tex]A(x) =722 \ cos \ x[/tex]

Applying the general slicing method ;

[tex]V = \int ^b_a \ A(x) \ dx \\ \\ V = \int ^{\dfrac{\pi}{2} }_{-\dfrac{\pi}{2}} (722 \ cos x) \ dx \\ \\ V = 722 \int ^{\dfrac{\pi}{2}}_{-\dfrac{\pi}{2}} cosx \dx[/tex]

[tex]V = 722 [ sin \ x ] ^{\dfrac{\pi}{2}}_{-\dfrac{\pi}{2}}[/tex]

[tex]V = 722 [sin \dfrac{\pi}{2} - sin (-\dfrac{\pi}{2})][/tex]

[tex]V = 722 [sin \dfrac{\pi}{2} + sin \dfrac{\pi}{2})][/tex]

[tex]V = 722 [1+1][/tex]

[tex]V = 722 [2][/tex]

V = 1444

∴ The volume of the solid = 1444

PLEASE HELP I WILL MARK YOU AS BRAINLEIST IF YOU GET THIS RIGHT ! ! !

Answers

Answer:

(-8, 2)

Step-by-step explanation:

Count 4 units to the right.

(-8,2) is the answer to your question :)

Jeremiah buys 6.5 pounds of ground beef at the grocery store. Ground beef costs $5.50 for one pound. How much does Jeremias spend?*

Answers

Answer:

35.75

Step-by-step explanation:

6.5 times 5.50 = 35.75

or

5.50+5.50+5.50+5.50+5.50+5.50=35.75



One number is 28 less than another number. If the sum of the two numbers is 92, find the two numbers.

Answers

Answer:

The two numbers are 32 and 60.

Step-by-step explanation:

We can create two simultaneous equations to solve this problem using the information given in the question.

Let number 1 = x

Let number 1 = y

x = y - 28 -> ( 1 )

x + y = 92 -> ( 2 )

We can solve simultaneous equations using substitution or elimination. For this question, we will use substitution as it is the easier option.

Substitute ( 1 ) into ( 2 ):

x + y = 92 -> ( 2 )

( y - 28 ) + y = 92

2y - 28 = 92

2y = 120

y = 120 / 2

y = 60 -> ( 3 )

Substitute ( 3 ) into ( 1 ):

x = y - 28 -> ( 1 )

x = ( 60 ) - 28

x = 32

Therefore:

x = 32 , y = 60

4.56 natural numbers or a whole numbers integers rational numbers Irrational numbers or real numbers ​

Answers

Answer:

it is rational number

Step-by-step explanation:

Decimals are not natural and whole numbers.

irrational numbers cannot be expressed by fraction but this question can be experssed by decimal so it is rational number not irrational

hope u like it ❤❤❤

For any question comment me

If I have a 10 ft PVC pipe,how many 11/5 cuts could I make out of it?

Answers

Answer:

80

Step-by-step explanation:

The price-demand equation for gasoline is 0.3d + 4p = 80, where p is the price per gallon in dollars and d is the daily demand measured in millions of gallons. Write the demand d as a function of price What is the demand if the price is $ 8 per gallon?

Answers

Answer:

The demand d as a function of price is [tex]d=\frac{800}{3} -\frac{40p}{3}[/tex]

The demand if the price is $ 8 per gallon is 160 millions of gallons.

Step-by-step explanation:

You know that the price-demand equation for gasoline is 0.3d + 4p = 80

To write demand d as a function of price p, you must solve for or isolate demand d, remembering that:

All the terms that are multiplying on one side, go to the other side of the equality by dividing, and those that are dividing go to the other side of the equality by multiplying. The terms that are adding go to the other side of the equality by subtracting and those that are subtracting go to the other side by adding.

So:

0.3d + 4p = 80

0.3d = 80 - 4p

[tex]d=\frac{80 - 4p}{0.3}[/tex]

[tex]d=\frac{80}{0.3} -\frac{4p}{0.3}[/tex]

[tex]d=\frac{800}{3} -\frac{40p}{3}[/tex]

The demand d as a function of price is [tex]d=\frac{800}{3} -\frac{40p}{3}[/tex]

To determine how much is the quantity demanded if the price is $ 8 per gallon, you simply plug that value into the previously determined expression and perform the corresponding calculations:

[tex]d=\frac{800}{3} -\frac{40*8}{3}[/tex]

[tex]d=\frac{800}{3} -\frac{320}{3}[/tex]

d= 160

The demand if the price is $ 8 per gallon is 160 millions of gallons.

11. The shadow of a 10 m high pole is 6 metres. Find
the shadow of a 15 m high pole at the same time
of the day.​

Answers

Answer:

25m

Step-by-step explanation:

10/6 = length of shadow per metre of pole

so 15 x 10/6 = shadow of 15m high pole

150/6 = 25m

please help me on this​

Answers

Savings account, retirement savings, value of second car, balance in checking account i believe those are the only ones not positive though

36) A contractor built a square hall having
an area of 4489 m2. How long is the hall?​

Answers

Answer:

area of square = l²= 4489m²

l=√4489 = 67m

Step-by-step explanation:

2.02 into 10 raised to 7 is the answer

(HELP) The point (- 8, - 2) is on the parent graph below. Where will it be on the transformed graph?

Answers

Answer:

   x=[tex]\frac{y2 }{9}[/tex]

Step-by-step explanation:

2nd step: [tex]3\sqrt{x}=y[/tex]

third step: [tex]\frac{3\sqrt{x} }{3} = \frac{y}{3}[/tex]

fourth step: [tex]\sqrt{x} =\frac{y}{3}[/tex]

answer:    x=[tex]\frac{y2 }{9}[/tex]

What number is 0.1 less than 173.89

Answers

Answer:

173.79

Step-by-step explanation:

173.89 - 0.1 you move to the decimals place then remove that number once

The number 173.79 is 0.1 less than 173.89

What is Equation?

Two or more expressions with an Equal sign is called as Equation.

We need to find how less is 0.1 than 173.89

In words zero point one is less than One hundred seventy three point eight nine.

To find this we have to use subtraction operator or difference.

Subtraction is an operation that represents removal of objects from a collection

Subtract 0.1 from 173.89

173.89-0.1

We get 173.79

Hence, the number 173.79 is 0.1 less than 173.89

To learn more on Equation:

https://brainly.com/question/10413253

#SPJ2

Sue weighed 82 kg at the start of the year, but she has lost weight at a consistent rate because she has been diligent with her exercise and diet plan. Sue weighed herself at the end of each month and tracked her progress for the full year using the graph above. How much weight did Sue lose each month? Question 5 options: A) 4 kg B) 2 kg C) 3 kg D) 1 kg

Answers

Answer:

Option (B)

Step-by-step explanation:

Sue's weight at the start of the year = 82 kg

Sue weighed herself at the end of every year, so that the straight line on the graph shows the gradual reduction in the weight every month.

Slope of the line will describe the reduction in the weight per month.

Let the two points on the given line are (1, 80) and (11, 60).

Slope of the line will be,

m = [tex]\frac{y_2-y_1}{x_2-x_1}[/tex]

   = [tex]\frac{60-80}{11-1}[/tex]

   = -2 kg per month

(Here minus sign denotes the reduction of weight per month)

Option (B) will be the answer.

Answer:

2 kg

Step-by-step explanation:

Consider the Line L(t) = <2+t,5-4t>. Then L intersects:

The x- axis at the point (3.25,0) when t = 5/4

The y- axis at the point (0, 13) when t = -2

The parabola y = x^2 at the points ___ and ___ when t = ____ and ____

Answers

Answer:

The parabola [tex]y=x^{2}[/tex] at the points [tex](-2+\sqrt{17},21-4\sqrt{17})[/tex] and [tex](-2-\sqrt{17},21+4\sqrt{17})[/tex] when [tex]t=t_{1}=-4+\sqrt{17}[/tex] and [tex]t=t_{2}=-4-\sqrt{17}[/tex]

Step-by-step explanation:

We have the following line written in parametric form :

[tex]L(t)=(2+t,5-4t)[/tex] with [tex]t[/tex] ∈ IR.

In order to find the intersection between [tex]L(t)[/tex] and the parabola [tex]y=x^{2}[/tex] we know that ''[tex]2+t[/tex]'' is the x-coordinate of the line and ''[tex]5-4t[/tex]'' is the y-coordinate of the line. Now, to solve this problem we need to find the values of ''[tex]t[/tex]'' in which the intersection occurs. We can do this by replacing the components    ''[tex]x[/tex]'' and ''[tex]y[/tex]'' of [tex]L(t)[/tex] in the equation of the parabola ⇒

[tex]L(t)=(2+t,5-4t)[/tex] = ( x component , y component ) = ( x , y ) ⇒

In the parabola : [tex]y=x^{2}[/tex] ⇒ [tex]5-4t=(2+t)^{2}[/tex]

Solving the equation we find that :

[tex]t^{2}+8t-1=0[/tex]

Using the quadratic formula with

[tex]a=1[/tex] , [tex]b=8[/tex] and [tex]c=-1[/tex]

We find that the two possible values for t :

[tex]t_{1}=\frac{-b+\sqrt{b^{2}-4ac}}{2a}[/tex]     and  [tex]t_{2}=\frac{-b-\sqrt{b^{2}-4ac}}{2a}[/tex]

are [tex]t_{1}=-4+\sqrt{17}[/tex] and [tex]t_{2}=-4-\sqrt{17}[/tex]

This values [tex]t_{1}[/tex] and [tex]t_{2}[/tex] are the values of the parameter t where the line intersects the parabola so we can find the points by replacing the values of the parameter in the equation [tex]L(t)[/tex] :

[tex]L(t_{1})=(-2+\sqrt{17},21-4\sqrt{17})[/tex] and

[tex]L(t_{2})=(-2-\sqrt{17},21+4\sqrt{17})[/tex]

The final answer is

The parabola [tex]y=x^{2}[/tex] at the points [tex](-2+\sqrt{17},21-4\sqrt{17})[/tex] and [tex](-2-\sqrt{17},21+4\sqrt{17})[/tex] when [tex]t=t_{1}=-4+\sqrt{17}[/tex] and [tex]t=t_{2}=-4-\sqrt{17}[/tex]

What is the answer to this?

Answers

Answer:

−6y+24

Step-by-step explanation:

Answer:

-4

Step-by-step explanation:

parenthesis come first (PEMDAS)

2×8=16

2×3y=6y

9+16-6y-1

Add like terms

9+16=25

25-6y-1

Subtract like terms

25-1=24

-6y=24

Multiple each sides by using fractions

1/(-)6×24/1=4

p: student achieves 90 percent on the geometry final. q: student will receive a passing grade in geometry class. Which statement is logically equivalent to q → p?

Answers

Answer:

if a student did not achieve 90 percent on the geometry final, then the student did not pass geometry class

Step-by-step explanation:

Burgers come in packs of 10. The cost of 10 burgers is £3.45. How much does 1 burger cost?

Answers

Answer: 1 burger = £0.345

Explanation:

10 burger = £3.45
1 burger = £3.45/10
1 burger = £0.345
Other Questions
AC has endpointsA(3,7) and C(6,11).Find AB if B is themidpoint of AC. In 2014, what percentage of the US population was Asian? 1.24% 5.44% 13.22% 17.40% Rewrite 4/10 : 1/25 as unit rate What is the elixir of life A cone has a diameter of 7 feet and a height of 4 feet. what is the exact volume of the cone? The monomers that are joined by glycosidic linkages to form biological polymers are If the bird is directly above the fish how far apart are they What should you do before you approach an ATM?Make sure it is hidden so no one will see you withdraw money.Share a picture of your debit card with your friends.Check for any suspicious people lurking nearby.Ask someone nearby for help using the ATM. Piaget spoke of egocentrism in both the thought and speech of the preoperational child. Three of the following are examples of preoperational egocentrism as Piaget defined it. Which one is not? Which of the following statements best summarizes how Baron de Montesquieu felt about power? The bad debt ratio for a financial institution is defined to the dollar value of loans defaulted divided by the total dollar value of all loans made. Suppose that a random sample of 7 Ohio banks is selected and that the bad debt ratios (written as percentages) for these banks are 6%, 8%, 5%, 9%, 7%, 5% and 8%. Banking officials claim that the mean debt ratio for all Midwestern banks is 3.5 percent and the mean bad debt ratio for Ohio banks is higher. Set up the null and alternative hypotheses needed to attempt to provide evidence supporting the claim that the mean bad debt ratio for Ohio banks exceed 3.5 percent. (a) H0: [ Select ] % versus Ha: > [ Select ] %. (b) Discuss the meanings of a Type I error and a Type II error in this situation. Type I : Conclude that Ohio's mean debt ratio is [ Select ] 3.5 % when it actually is 3.5%. Type II : Conclude that Ohio's mean debt ratio is [ Select ] 3.5 % when it actually is 3.5%. A horticulturist (plant scientist) complains to the city that a nearby residence is ruining his flowers because of the detergent being used to wash their cars. The soap runs into a stream that goes near his flower beds. As an inquiring scientist, you want to find out whether soap can affect flower growth. You will need to set up your experiment (using the animation below) and publish your findings (see questions below). Write your hypothesis (should be in a complete sentence and describe what exactly is being tested) A sailboat took 25 hours to cover 1/4 of a journey. Then, itcovered the remaining 144 miles in 3.5 hours. What was theaverage speed for the whole journey?mph Which development in the history of digital photography came first?A- the compact flash memory cardB- the first photo-editing softwareC- the camera phoneD- the digital single-lens reflex TIME REMAININ21:4613678Which statements best explain how the transatlantic slave trade changed African culture? Select three options,It delayed industrialization.O It increased wealth for Africans.It decreased the population in the area.It caused conflicts between different groups.It strengthened agricultural development in Africa. 5. Solve: 16 * 22 / 2 what is the differnence between (-2)^2 and -2^2 in math If the tangent line to y = f(x) at (5, 2) passes through the point (0, 1), find f(5) and f '(5). PLZ HELP :) The light dependent and light independent reactions of photosynthesis work together. The light-dependent reactions trap the energy from sunlight to form ATP and NADPH molecules, giving off oxygen gas. The light-independent reactions use that chemical energy and carbon dioxide to build stable long-term energy storage in the form of: Group of answer choices glucose ATP water proteins The formula V = IR shows the relationship between voltage, current, and resistance. Solve this formula for R.