Use the pic and solve the COS x-sin x/COS x+ sin x part
comment if there's something u don't understand
The value of (cosx-sinx)/(cosx+sinx) is 1/7 if the x is an acute angle, and tan x=3/4
What is trigonometry?Trigonometry is a branch of mathematics that deals with the relationship between sides and angles of a right-angle triangle.
We have:
tanx = 3/4 (x is an acute angle)
[tex]\rm \dfrac{sinx}{cosx}=\dfrac{3}{4} \\\\\ \rm \dfrac{cosx}{sinx}-1=\dfrac{4}{3}-1\\\\\rm \dfrac{cosx-sinx}{sinx}=\dfrac{1}{3}\\\\[/tex] ….(1)
[tex]\rm \dfrac{sinx}{cosx}=\dfrac{3}{4} \\\\\ \rm \dfrac{cosx}{sinx}+1=\dfrac{4}{3}+1\\\\\rm \dfrac{cosx+sinx}{sinx}=\dfrac{7}{3}\\\\[/tex] …(2)
Divide (1) ÷ (2)
(cosx-sinx)/(cosx+sinx) = (1/3)/(7/3) = 1/7
Thus, the value of (cosx-sinx)/(cosx+sinx) is 1/7 if the x is an acute angle, and tan x=3/4
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The scale used on a map is 1 inch = 44 miles. How many miles does 9 inches on the map represent
Answer:
9 inches on the map represents 396 miles.
Step-by-step explanation:
Here let's convert 44 miles to inches.
44 miles is 2787840 inches.
So according to the map, 1 inch = 2787840 inches.
We need to multiply both of these values by 9 to find out how many miles 9 inches represents.
1 inch = 2787840 inches
1 * 9 inches = 2787840 * 9 inches
9 inches = 25090560 inches.
Then convert back to miles.
25090560 inches = 396 miles.
That means, 9 inches on the map represents 396 miles.
Which expression is equivalent to 6x-9,
3
Answer:
the expresion its equal at the d9feremce between you and the excercise so its 7
Base your answer on calculate the measure of and b
The answer would be 30°.
Select all the correct statements.
Answer:
C,D,E,F
Step-by-step explanation:
A amplitude is 2
B period is 4pi
Answer:
f option is write
Step-by-step explanation:
because it is true
mark me brainlist
What is
7(2b + 3) - 2b
Pls I need help fast
Answer:
b= = - 7/4 or -1.75
Step-by-step explanation:
14b +21 -2b=0
12b +21=0
12b= -21
b= -21/12
b= - 7/4 or -1.75
Answer:
i dont know what you neccesarily want but here are two answers b=-7/4 or -1 3/4 other answer is 12b+21
Step-by-step explanation:
first, you have to set this question equal to 0.
7(2b+3)-2b=0
now you have to distribute the 7 to everything inside the parentheses.
14b+21-2b=0
combine like terms
12b+21=0
you can stop here and take this answer if this is the one you want
now subtract each side by 21
12b=-21
divide each side by 12
b=-21/12
simplify
b=-7/4
hope this helps! have a nice day :)
Select the correct difference. 5d^2 + 4d - 3 less 2d^2 - 3d + 4
Answer:
[tex]3d^2+ 7d- 7[/tex]
Step-by-step explanation:
Given
[tex]P_1 = 5d^2 + 4d - 3[/tex]
[tex]P_2 = 2d^2 - 3d + 4[/tex]
Required
P1 less P2
This means that we subtract P2 from P1.
So, we have:
[tex]P_1 - P_2 = 5d^2 + 4d - 3 - (2d^2 - 3d + 4)[/tex]
Remove bracket
[tex]P_1 - P_2 = 5d^2 + 4d - 3 - 2d^2 + 3d - 4[/tex]
Collect like terms
[tex]P_1 - P_2 = 5d^2 - 2d^2+ 4d + 3d- 3 - 4[/tex]
[tex]P_1 - P_2 = 3d^2+ 7d- 7[/tex]
The difference is: [tex]3d^2+ 7d- 7[/tex]
What three-dimensional figure is represented by the net shown below?
A cube
B square pyramid
C rectangular prism
D rectangular pyramid
Answer:
C
Step-by-step explanation:
The net, if you imagine it folded up, will look like a long box.
Because all the dimensions are not equal, the figure cannot be a cube. Both square and rectangular pyramids have 5 faces, unlike this net.
A net of a rectangular prism, however, will have different dimensions for [tex]l[/tex] and [tex]w[/tex], and have 6 faces. So, the answer is C, rectangular prism.
Good luck ^^
The three-dimensional figure represented by the net shown below is a rectangular prism.
Option C is the correct answer.
What is a prism?A prism is a three-dimensional object.
There are triangular prism and rectangular prism.
We have,
From the figure,
We see that it is an open rectangular prism.
All the open sides are rectangular in shape.
If we fold all the sides it will form a rectangular prism.
Thus,
The three-dimensional figure represented by the net shown below is a rectangular prism.
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Which expression is equivalent to this: "3 multiplied by z"?
Answer:
3z
Step-by-step explanation:
When you write a number followed by a variable with no operation in between them, it means multiplication.
3 multiplied by z is 3 * z, but you can write it without the multiplication sign simply as 3z.
in a drawer, there are 3 white socks, 4 black socks, and 2 brown socks. You pick out a sock, replace or, turn pick put a 2nd sock. What is the probability that you will pick a brown then black?
A) 12/81
B) 6/81
C) 8/81
I believe the answer is B) 6/81
Hellpppp me please this test is my whole life and if I don’t pass I’m ruined for life so please HELPPPP MEEEEE
Answer:
expanded form: 5 * 5 * 5
value: 125
Step-by-step explanation:
what is the simplified form of 48\192?
[tex] \sqrt[?]{?} [/tex]
Someone please help me I’ve been trying all day!
NO LINKS , answers only
I MEAN IT!!!!
Answer:
Step-by-step explanation:
You want to set up a system. We are given some points fo we can set up inputs and outputs. F(0) = 5, given by point (0,5). and F(3)=135, given by point (3,135). The exponential function general equation is F(x)= a(b)^x. plug in out functions into the general equation to get a(b)^0=5 and a(b)^3=135. Then you simplify and solve for a. In the equation a*b^0=5, anything to the power of 0 is 1. so a*1=5. Therefore a=5. we plug in the a to the second equation to find b. 5*b^3=135. b^3=27. b=3 from simplifying. Therefore, the equation should be 5(3)^x. THATS IT!
Solve the inequality for w.
4+4ws-16
Simplify your answer as much as possible.
Answer:
The answer is 4ws - 12
Step-by-step explanation:
1) Collect like terms.
[tex]4ws + (4 - 16)[/tex]
2) Simplify.
[tex]4ws - 12[/tex]
therefor, the answer is 4ws - 12.
Please help me it would mean a lot !!!!!!!!!!!!!!
Answer:
Step-by-step explanation:
Given
f(x) = 4x + 7
so
f(a + h) = 4(a + h) + h
= 4a + 4h +h
= 4a + 5h
f(a) = 4a + 7
now by the question
[tex]\frac{f(a+h) - f(a)}{h}\\=\frac{4a + 5h - 4a + 7}{h}\\=\frac{ 5h + 7}{h} \\= \frac{5h}{h} + \frac{7}{h} \\= 5 +\frac{7}{h}[/tex]
hope it helps :)
Salim has a flock of 300 chickens, 15% of which are infected with a virus. He plans on taking an SRS of 7
chickens to test for the virus.
Which of the following would find the probability that exactly 4 of the 7 chickens sampled have the virus?
Answer:
(7/4)(0.15)^4(0.85)^3
Step-by-step explanation:
khan says it’s right
Please help me simplify this!!! Thank you so much.
Answer:
[tex] {3}^{2} [/tex]
Step-by-step explanation:
♡ Good Lessons ♡
Answer:
it's indices tho so you'll use addition/subtraction rule
NEED ANSWERS ASAP
Raymond will roll a regular six-sided number cube. Calculate the probability of each event. Event Probability (as a fraction) P(even number) P(7) P(not 4 or 5)
Ex) There are six outcomes for rolling a die: 1, 2, 3, 4, 5, and 6. ... Formula for Theoretical Probability. P (event) = outcomes possible of number ... Write the probability as a fraction. Ex) P(3). Ex) P(3 or 4). Ex) P(even). Ex) P(4) ... Ex) Mr. Hayes tossed a coin 12 times to determine whether or not it would land on hands or tails.
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Please answer. Ill mark brainliest for real answer.
How many 10ths equivalent to 3/5
Answer: 6 tenths
Step-by-step explanation:
3/5 = 6/10 (multiply by 2)
!NO LINKS, NO FILES!
please :)
Answer:
it is 34 that's the answer.
Step-by-step explanation:
Answer:
120 feet squared.
Step-by-step explanation:
If this is incorrect I apologize but I believe this is the correct answer.
a triangle has a length of 15cm and 17cm. select all the values of its third side that would make it a right triangle.
options are:
8cm
29cm
2cm
514 squared
29 squared
Answer:
8cm & 514 squared are correct answers
Step-by-step explanation:
The surface area S of a cube with the side length a is given by the formula S=6a^2. Find the side length of a cube with the Surface are of 700 square inches. Round to the nearest integer
Answer:
Side length of cube = 10.80 inch (Approx.)
Step-by-step explanation:
Given:
Surface area of cube = 700 square inches
Find:
Side length of cube
Computation:
We know that all sides of cube are equal
Surface are of cube = 6(Side)²
By putting 700 as surface are of cube in the formula;
700 = 6(Side)²
(Side)² = 700 / 6
(Side)² = 116.667
Side = √116.667
Side = 10.801
Side length of cube = 10.80 inch (Approx.)
Natalie is trying to pick out an outfit for the first day of school. She can choose from 7 pairs of pants, 2 t-shirts, and 2 pairs of shoes. How many different outfits does Natalie have to choose from?
Answer:
Shirt A, Skirt A, Shoe A
Shirt A, Skirt A, Shoe B
Shirt A, Skirt B, Shoe A
Shirt A, Skirt B, Shoe B
Shirt A, Skirt C, Shoe A
Shirt A, Skirt C, Shoe B
The number of ways Natalie has to choose outfits for her first day school is 28 ways.
What is the Permutations?Permutations are different ways of arranging objects in a definite order. It can also be expressed as the rearrangement of items in a linear order of an already ordered set. The symbol nPr is used to denote the number of permutations of n distinct objects, taken r at a time.
Given that, Natalie is trying to pick out an outfit for the first day of school. She can choose from 7 pairs of pants, 2 t-shirts, and 2 pairs of shoes.
Let 7 pairs of pants be P1, P2, P3, P4, P5, P6 and P7.
Let 2 t-shirts be T1 and T2
Let 2 pairs of shoes be S1 and S2
Now,
1) P1, T1, S1
2) P1, T2, S2
3) P2, T1, S1
4) P2, T2, S2
5) P3, T1, S1
6) P3, T2, S2
7) P4, T1, S1
8) P4, T2, S2
9) P5, T1, S1
10) P5, T2, S2
11) P6, T1, S1
12) P6, T2, S2
13) P7, T1, S1
14) P7, T2, S2
15) P1, T1, S2
16) P1, T2, S1
17) P2, T1, S2
18) P2, T2, S1
19) P3, T1, S2
20) P3, T2, S1
21) P4, T1, S2
22) P4, T2, S1
23) P5, T1, S2
24) P5, T2, S1
25) P6, T1, S2
26) P6, T2, S1
27) P7, T1, S2
28) P7, T2, S1
Other way = 7×2×2
= 28 ways
Therefore, the number of ways is 28 ways.
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10 POINTS FOR THE CORRECT ANSWER THIS IS DUE TODAY PLEASE HELP ME
Answer:
Step-by-step explanation:
8
Twice x decreased by 4 is 36. What is x
Answer: x=16
Step-by-step explanation:
2x+4=36
Subtract 4 from both sides and get
2x=32
Divide both sides by 2 to isolate x and you get
x=16
4. Ethan can run 3 miles in 30 minutes. At this rate, how long will it take Ethan to run one
mile?
HAiiiiiiii help T-T...
it will be helpful
Answer:
The popsicle stick is 11 and 6/10 inches and 4.9 centimeters.
The pencil is 7 and 3/10 inches and 2.14 centimeters.
The paperclip is 6 and 3/10 inches and 2.8 centimeters.
Step-by-step explanation:
Just look at where the red dotted lines are
hope this helps
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The Martinez family ordered a large pizza pie for dinner. After everyone ate, one slice was left in the box forming a 75∘angle. Use the provided protractor below to explain how to construct a 75∘angle.
Answer:
,,,,,,,,,,,,,,,,,,,,,
Which ordered pair represents the y-intercept of the graph of the equation y = - 4 x - 7 ?
Answer:
(0, -7)
Step-by-step explanation:
Since -4x is the slope, then -7 is the y-intercept.
For finding y intercept we substitute x=0
y = -7
The ordered pair would be
(0,-7)
hope this helps and is right. p.s. i really need brainliest :)
PLEASE HELPPP! I'LL GIVE BRAINLEST
Answer:
5
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