Please Help I Don't Understand!

Please Help I Don't Understand!

Answers

Answer 1

The value of x is 8 from the diagram given.

How do you calculate the sides of similar triangles?

The corresponding sides of a similar triangle are said to be in proportion if and only if the corresponding angle are also equal.

To calculate the side of line x (|x|), we have to determine the ratios of the corresponding sides as:

[tex]\mathbf{\dfrac{BC}{DC} = \dfrac{AC}{EC}}[/tex]

[tex]\mathbf{\dfrac{x}{10} = \dfrac{12}{15}}[/tex]

x = 120/15

x = 8

Therefore, we can conclude that the value of x is 8.

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Related Questions

The preimage undergoes the sequence of transformations to produce an image, figure 1.

1. reflection across a horizontal line

2. rotation counterclockwise about point P

3. dilation with a scale factor of 1

Answers

Based on the transformations that occurred, the preimage is most likely the topmost right image.

Where is the preimage?

The transformations list shows that the first transformation was the reflection across the horizontal line drawn.

When a reflection is done, the shape looks like the inverse of itself. The only shape that looks like an inverse and is therefore a reflection is the bottom right shape which means the preimage must be the top right image.

Remaining part of question:

Which is the preimage?

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O
O
O
-54-3 -2 -1 0 1 2 3 4 5 6 7
8
-5-4
-3 -2 -1 0 1 2 3 4 5 6 7 8
++
-5 -4
-3 -2 -1
0 1
2
3 4 5 6 7
8
+
-5 -4
-3 -2 -1 0 1
2
3
5
6
7
C
C
4
8
9 10 11 12 13
9 10 11 12 13
9 10 11 12 13
9 10 11 12 13

Answers

Step-by-step explanation:

separate the question into two inequalities then solve individually to derive at an answer then merge the two answers as one.

remember that < or > are open sets while <= or >= are closed set.

(6x10^7) divided by (2x10^3) give your answer in standard form

Answers

Answer:

In the end, the answer is: 30,000

Step-by-step explanation:

[tex]\frac{60,000,000}{2,000} = 30,000[/tex]

Determine x to two decimal places.
*PICTURE ATTACHED*
*TRIGONOMETRY*​

Answers

This rule is applied to triangles to determine the unknown sides and angles. The value of x from the diagram is 11.78m

Trigonometry rule

This rule is applied to triangles to determine the unknown sides and angles.

Given the following parameter

Opposite = 5m

Adjacent = x

angle = 23 degrees

According to the theorem of tangents

tan23 = opposite/adjacent

tan23 = 5/x
x = 5/tan23

x = 11.78m

Hence the value of x from the diagram is 11.78m

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Which expression is equal to p + (q + r)?

(p + q) ⋅ r
(p + q) + r
p + qr
q + pr

Answers

Answer:

(p + q) + r

is the correct answer

What is X of 75 degrees 13 rounded to the nearest tenth

Answers

a=6.9
Step-by-step explanation:
Since you know that C is a right angle, you can use the Law of Sines to find a. The first step is to find the size of the angle A, which is 180-74-90=16. Now, you set up a ratio that involves 3 knowns and one unknown to get , which after cross multiplying yields . PM me if you have any questions?

The function(t)--4.87+18.75 is used to model the height of an object projected in the air, where h() is the height in
meters and t is the time in seconds. What are the domain and range of the function h(0)? Round values to the nearest
hundredth.
25
20+
(1.9, 18.05)
15-
10+
st
"

Answers

The domain and range of the given function are equal to (0, 3.85) and (0, 18.75) respectively.

How to calculate the domain of the function?

In this exercise, you're given the following function h(t) = -4.87t² + 18.75t. Next, we would equate the function to zero (0) to determine its domain as follows:

0= -4.87t² + 18.75t.

4.87t(-t + 3.85) = 0

t = 0 or t = 3.85.

Therefore, the domain is 0 ≤ t ≤ 3.85 or (0, 3.85).

How to calculate the range of the function?

h(t) = -4.87t² + 18.75t

h(t) = -4.87(t² - 3.85t + 3.85 - 3.85)

h(t) = -4.87(t - 1.925)² + 18.05

Therefore, the range is 0 ≤ h ≤ 18.05 or (0, 18.75).

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Answer:

A on EDGE 2022

Step-by-step explanation:

Help please and thank you !! ill give brainle and 20 points !

Answers

Answer:

G 33%

Step-by-step explanation:

17/52 = 0.32692307692

0.32692307692 is about 33 %

Have a nice day! :)

GIVING BRAINLIEST PLEASE ANSWER QUICKLY I APPRECIATE IT SO MUCH PLS HELP im like begging

Answers

Answer:

x=28

Step-by-step explanation:

cos60°=14/x

0.5=14/x

x=14/0.5

x=28

Answer:

A. 28

Step-by-step explanation:

The value of x is equal to 18

Hope this helps and please feel free to comment, ask questions, give feedback, and correct me if I am wrong!

Have a great day!

:)

Please help!!!!!!!!!!!!!!! i need this answer really fast!!!

Answers

Answer:

What's the question you f... you amazing human being

Please help on this only if u know

Answers

Answer:

Option D --->  y=5x

Step-by-step explanation:

When a line is directly proportional it means it crosses the origin so has a y- and x-intercept of 0.

So if we use the format y=mx+c, it will work but our c value will be 0 as I explained above .

To work out the gradient we simply take 2 points (0,0) and (1,5)) on the graph and use the gradient formula :

m = change in y ÷ change in x

m = 5÷1

m = 5

Therefore our direct proportion equation will be y=5x

Hope this helped and have a good day

What is the value of x in the equation shown Below?2(x+4)-4x=10x-4

Answers

Answer: 1

Step-by-step explanation:

A high speed train travels a distance of 503 km in 3 hours.
The distance is measured correct to the nearest kilometre.
The time is measured correct to the nearest minute.
By considering bounds, work out the average speed, in km/minute, of the train to a suitable degree of accuracy.
You must show your working.
To gain full marks you need to give a one-sentence reason for your final answer the words 'both' and 'round' should be in your sentence.​

Answers

The average speed, in km/minute, of the train is 2.79 km/minute

Calculating average speed

From the question, we are to calculate the average speed in km/minute

From the given information,

Distance travelled = 503 km

Time taken = 3 hours = 3 × 60 minutes = 180 minutes

Using the average speed formula,

Average speed = Distance / Time

∴ Average speed of the train = 503 / 180

Average speed of the train = 2.79 km/minute

Hence, the average speed, in km/minute, of the train is 2.79 km/minute

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What is the product of the fractions below?
1/8 * 4/5

Answers

Answer: 1/10

Step-by-step explanation:

(1 x 4)/(8x5)

4/40

1/10

Select the correct answer.
Richard reads 28.9 inches of mercury on a barometer, which is 1 inch lower than normal atmospheric pressure. The temperature is 40°F. What type of weather is most likely to occur where Richard is?
A.
fair and dry
B.
drought
C.
rain shower
D.
snowfall

Answers

The weather that is most likely to occur where Richard is is rain shower.

What type of weather is most likely to occur?

Weather is the state of the atmosphere of a particular place over a short period of time. There is low atmospheric pressure, so it is likely that it would rain. This is because when the  atmospheric pressure is low, it is likely that it would rain.

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Answer:

Rain shower is most likely to occur where Richard is. (Option c)

• The air pressure is lower than the normal and that's why it suggests that the rainfall will happen in that place because rainfall generally occurs in the place where the low pressure is formed.

• And,the temperature is above than the freezing point of the water so there are no chances of the snowfall in that place.

• That's why rainfall is the most probable thing that will happen in that place.

Step-by-step explanation:

Evaluate each function.
14) g(x)= 3x² - 1; Find g(-3)

Answers

[tex]g(x) =3x^2 -1\\\\g(-3)=3(-3)^2 -1 \\ \\~~~~~~~~~=3(9) -1 \\\\~~~~~~~~~=27-1\\\\~~~~~~~~~=26[/tex]

Answer:

g(26)

Step-by-step explanation:

 

substitute -3 for x.

g(x)=3[tex]x^{2}[/tex]-1

[tex]g(-3)=3(-3)^{2} -1\\g(-3)= 3(9)-1\\g(-3)= 27-1\\g(-3)=26[/tex]

which expression is equivalent to 56x - 28y + 42?
A) 8(7x-3y + 6)
B) 7(8x + 4y +6z)
C) 7(8x - 4y + 6)

Answers

Answer: c or a

Step-by-step explanation:

(-14,-13), (-7,-7)

Can anyone help me solve this - algebra

Answers

Answer: y=6/7x-1

Step-by-step explanation:

I am assuming you want a line formula in y=mx+b

slope (y2-y1)/(x2-x1) = -7+13/-7+14 = 6/7

y+7=6/7(x+7)

y+7 = 6/7x+6

y=6/7x-1

Rewrite the expression using the distributive property and a common factor.

27x+24x
0.5n+2.5

Answers

Answer:

x(27 +24)  or  3x(9 +8)0.5(n +5)  or  2.5(n/5 +1)

Step-by-step explanation:

The distributive property of multiplication over addition tells us that the product of a value and a sum will be the same as the sum of products of the value and the sum's addends. This property can be used to add or remove parentheses from an arithmetic expression.

  a(b +c) = ab +ac . . . . expression of the distributive property

__

When applying the distributive property to a sum, the first step is to look for a factor common to the terms of the sum. That factor need not be the greatest common factor, though it is often useful if it is.

Below, we have written each expression using two different common factors.

a)

  27x +24x = x(27 +24) = 3x(9 +8)

__

b)

  0.5n +2.5 = 0.5(n +5) = 2.5(n/5 +1)

_____

Additional comment

Finding a common factor can make use of knowledge of multiplication tables, rules of exponents, and identities involving various functions used in algebraic expressions. It is sometimes useful to list the prime factors of each of the terms as an aid to finding a common one. Where fractions are involved, it is sometimes helpful to express them all using a common denominator.

The Euclidean Algorithm can also be useful for finding common factors.

Daniel runs 40/5 miles in 124/₁ minutes. What is the unit rate in terms of miles per minute? What the answer:

Answers

Using the given information, the unit rate is 0.0645 miles/minute

Calculating rate

From the question, we are to determine the unit rate

From the given information,

Daniel runs 40/5 miles in 124 minutes

That is,

Distance = 40/5 miles = 8 miles  

Time = 124 minutes

Using the formula,

Rate = Distance / Time

Rate = 8 miles / 124 minutes

Rate = 0.0645 miles/minute

Hence, the unit rate is 0.0645 miles/minute

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The unit rate is 0.0645 miles/minute

We have calculated the rate

From the question, we are to determine the unit rate

From the given information,

Daniel runs 40/5 miles in 124 minutes

Distance = 40/5 miles

Distance = 8 miles  

Time = 124 minutes

What is the formula of rate?

Rate = Distance / Time

Rate = 8 miles / 124 minutes

Rate = 0.0645 miles/minute

Hence, the unit rate is 0.0645 miles/minute

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What is the solution -2x+3-(5-6x).

Answers

Answer: 2(2x-1)

Range terms

Distribute

Subtract the numbers

If the quadratic equation has two rational roots,then the discriminant is_____and a perfect square

Answers

Answer:

Real and unequal

Answer:

The quadratic has two equal roots like d if it is perfect square and we may write: (x − d) 2 = x 2 − 2 d x + d 2 Then: Δ = 4 d 2 − 4 d 2 = 0 That is the discriminant is zero when the quadratic is perfect square.

Step-by-step explanation:

find the missing angle.

Answers

Answer:90 degree

Step-by-step explanation:

Answer:

x = 90°

Step-by-step explanation:

According to the Angle Sum Property of Triangles, the sum of the internal angles is 180°.

55° + x° + 35° = 180°x° + 90° = 180°x = 90°

Triangle ABC is an isosceles triangle.

AB = BC
mB = 34°

What is mA?


A. 34°
B. 56°
C. 73°
D. 112°

Answers

Answer:

C. 73

Step-by-step explanation:

angles A and C will be the same because their sides are the same length!

so to solve this, let's set up an equation

34 + 2x = 180 let x represent the missing angle

now let's solve!

2x = 146x = 73

angle A = 73

let me know if you have any questions :)

Answer:

C!

Step-by-step explanation:

Which fraction names the shaded part of the set?

Answers

Answer:

Hello! Your answer is 1/2

Step-by-step explanation:

there are six cubes and three of them are shaded. That is half of the parallelograms.

So 1/4 wouldn't make sense because there are three shaded out of six.

1/6 doesn't make sense because since there is six in total for it to be 1/6 there needs to be 1 shaded out of six.

And finally 1/3 doesn't make sense because 1/3 would have to be two out of six shaded.

Have a wonderful day/night/afternoon and good luck my friend!

Okay I just got here I got the truck so I don’t have time for it but I’ll be home safe 1/2

The triangles below are similar. Triangle Y X Z. Side Y X is 6 centimeters, X Z is 7 centimeters, and Z Y is 3 centimeters. Triangle A B C. Side A C is 14 centimeters, A B is 12 centimeters, and B C is 6 centimeters. Which similarity statement expresses the relationship between the two triangles? Triangle Z Y X is similar to triangle C A B Triangle Z Y X is similar to triangle A C B Triangle Z Y X is similar to triangle C B A Triangle Z Y X is similar to triangle A B C Mark this and return

Answers

Answer:

  (c)  Triangle Z Y X is similar to triangle C B A

Step-by-step explanation:

Triangles are similar when corresponding sides have the same ratio. Corresponding sides will have corresponding end point vertices. The similarity statement lists corresponding vertices in the same order.

__

corresponding sides

The side lengths, smallest to largest, for the two triangles are ...

3 cm -- ZY6 cm -- YX7 cm -- XZ

And for the other triangle, ...

6 cm -- BC12 cm -- AB14 cm -- ACcorresponding vertices

The points joining the each side to the next one longer, in order for the two triangles, are ...

  Y, X, Z  and  B, A, C

The vertices corresponding to ZYX in the same order are CBA.

  triangle ZYX is similar to triangle CBA

Answer:

The answer is C

Step-by-step explanation:

What expression is equivalent to the given expression?

Answers

The expression which is equivalent to the given expression is     [tex]\frac{27 m^{5}}{n}[/tex]

Evaluating indices

From the question, we are to determine the expression which is equivalent to the given expression

The given expression is

[tex]\frac{(3m^{2}n)^{3} }{mn^{4} }[/tex]

Clearing the brackets, we get

[tex]\frac{3^{3} m^{2(3)}n^{3} }{mn^{4} }[/tex]

Simplifying, we get

[tex]\frac{27 m^{6}n^{3} }{mn^{4} }[/tex]

Then,

[tex]27 m^{6-1}n^{3-4}[/tex]

[tex]27 m^{5}n^{-1}[/tex]

= [tex]\frac{27 m^{5}}{n}[/tex]

Hence, the expression which is equivalent to the given expression is     [tex]\frac{27 m^{5}}{n}[/tex]

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Solve for x

3x-5=-x+3

Answers

Answer:

(3x - 5 = -x + 3) x = 2

Step-by-step explanation:

3x - 5 = -x + 3

3x = -x + (3 +5)

3x=-x + 8

(3x + x ) = 8

4x = 8

4/8 =2

x = 2

what is the answer to 3a^-2/a^-3

Answers

Answer:

3a

Step-by-step explanation:

Find the value of x. Show each step.

0.15x+(0.15-5-x)*0.2=0.1

Answers

Answer:

-21.4

Step-by-step explanation:

0.15x + 0.2(0.15-5-x) = 0.1

0.15x + 0.03 - 1 - 0.2x = 0.1

0.15x - 0.2x = 0.1 -0.03 + 1

-0.05x = 1.07

0.05x = -1.07

x = -21.4

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