sin 7A = cos 3A, then m∠A is what?

Answers

Answer 1

Answer:

m∠A = 9°

Step-by-step explanation:

[tex] \sin 7A = \cos 3A \\ \\ \sin 7A = \sin(90 \degree - 3A) \\ \\ 7A = 90 \degree - 3A\\ \\ 7A + 3A= 90 \degree \\ \\ 10A= 90 \degree \\ \\ A = \frac{90 \degree}{10} \\ \\ m \angle A =9 \degree[/tex]

Related Questions

April worked 1 1/2 times as long on her math project as Carl. For how many hours did April work on her math project?

PLEASE ANSWER ASAP!!!

Answers

Answer: 7 7/8 hours long

Step-by-step explanation:

April worked 1 1/2 times as long as Carl did. 1 1/2 can be rewritten as 3/2. Number of Hours April worked on math project 3/2 times the Number of Hours Carl worked on Math project. Which Carl worked 5 1/4 hours long, which can be rewritten as 21/4

1. Good recordkeeping requires that you keep an accurate record of how you spend your money.

Answers

Answer:

True

Step-by-step explanation:

This answer stated is true

solve em for me please

Answers

Take another pic thats clearer

These polygons are similar. Find the missing side length.

Can you guys help?

Answers

Answer:

Step-by-step explanation:

Since they are similar we can say

?/15=6/3

?=15(6)/3

?=30

I need the answer fast ASAP

Answers

Answer:

a rotation followed by a dilation

Step-by-step explanation:

they first rotated the figure by 90 degrees, they then dilated by a scale factor of 3

dil, Coleman
Jackie has a closet with 6 red dresses and 2 blue dresses. What is the likelihood of Jackie pulling a red dress out of the closet if she does it without looking?
O certain
likely
O impossible
O unlike

Answers

Answer: likely

Step-by-step explanation: Since they pulled out many red dresses, there is a better chance of pulluing out a red dress

1. Find the volume of the object below.*

Answers

Answer:

228 cubic centimeters

Step-by-step explanation:

Find the volume for the blue box: 8 x 1 x 6 = 48

Find the volume of the orange box: 6 x 6 x 5 = 180

48 + 180 = 228

HELP ME PLEASEEEEEEEE

Answers

Answer:

letters A and D

plzz help need help need help

Answers

Just divide 75 by 9 multiplying 100 gives u the answer. And same for the rest

How many different ways can you solve a quadratic equation ? List them.

Answers

There are three basic methods for solving quadratic equations: factoring, using the quadratic formula, and completing the square.

please helppp
Determine if the side lengths 6, 11, and 19 form a triangle. If it is a triangle, classify it by its sides.

scalene triangle
equilateral triangle
isosceles triangle
It's not a triangle.

Answers

Answer:

Its not a triangle

A school has a total enrollment of 800 students. Twenty percent of the students play a sport. How many do not play a sport?

Answers

Answer:

160

Step-by-step explanation:

In a system of equations, two different lines intersect. How many solutions does the
system have?
a) Zero
b) One
c) Two
d) Infinitely many

Answers

A) One
If the line is intersecting and is parallel then the line will only intersect once at one point

123,456,789x123,456,789=

Answers

Answer:

123,456,789x123,456,789= (123,456,789)^2= 152415788*10^16

can i have brainliest please

Find the midpoint of line CD given C(7, 5) and D(-3, -1)

Answers

Answer: C (2,-3)
Explanation: (x1+x2/2),(y1+y2/2)

Jane had $60. She spent an average of $5 each day. How many days did
she take to spend all her money?
=
She took
days to spend all her money.
&

Answers

Answer:

She took 15 days to spend all the noney

Help fast please ASAP

Answers

Answer:

a rotation of 180° about point (0.5, -0.5) followed by a dilation of 0.5

Step-by-step explanation:

The diagram shows two right-angled triangles. Calculate the value of x.

Answers

52° would be the value of x

The value of x in the given diagram is 7cm.

What is tangent of an angle?

The tangent of an angle is the ratio of the length of the opposite side to the length of the adjacent side.

According to the given question.

We have a diagram in which we have two right angled triangles.

Now, in the upper right angled triangle

[tex]tan50 = \frac{0pposite side}{5}[/tex]

⇒ 1.19 = 0pposite side/ 5

⇒ opposite side = 1.19 × 5

⇒ opposite side = 1.2 × 5

⇒ opposite side = 6cm

Now, the opposite side w.r.t angle 50 degrees in the upper right angle triangle is a adjacent side w.r.t to angle 38 degrees in the lower right angle triangle.

So, in the lower right angle triangle.

[tex]tan38 = \frac{x}{adjacent side}[/tex]

⇒[tex]0.78 = \frac{x}{6}[/tex]

⇒ x = 0.78 × 6

⇒ x = 4.68

⇒ x = 7cm

Hence, the value of x in the given diagram is 7cm.

Find out more information about tangent of an angle here:

https://brainly.com/question/14022348

#SPJ2

Help solve!!! Need an answer very very soon!!!

Answers

Answer:

30 degrees

Step-by-step explanation:

sin(30 degrees) = 9/18 = 1/2

law...

Find the slope given the following points:
(-1, 2) (3,5)

Answers

Answer:

The slope is [tex]\frac{3}{4} \\[/tex]

Answer:

[tex]\frac{3}{4}[/tex]

Step-by-step explanation:

[tex]m = \frac{5-2}{3-(-1)} = \frac{3}{4}[/tex]

What is the length of each leg of the triangle below?
O A. 15
O B. 11.3
O c. 11
O D. 1
O E. 11
O F. 22

Answers

Answer:-
(Apply the formulas urself)
Acc. to Pythagoras theorem:
>> a^2 + b^2 = c^2

>> sinθ = P/H
cosθ = B/H
tanθ = P/B

Note: P means Perpendicular
B means Base
H means Hypotenuse

Which event is UNLIKELY?
Impossible
Equally likely to
happen or not happen
Unlikely
Certain
Likely
0
0%
0.25
25
2
0.5
50%
0.75
75%
1
100%
P(honor roll) = 1.0
P(left-handed) = 33% A
P(failing math) = 0%
P(taking Spanish) = 60%
P(honor roll)
P(taking Spanish)
P(left-handed)
P(failing math)

Answers

Answer:

left handed

Step-by-step explanation:

can someone help me wit dis plz

Answers

Answer:

58.6

Step-by-step explanation:

cos(35) = 48

------- = 58.6

If the ratio of blue blocks to red blocks is 5:7,
what is the ratio of red blocks to blue blocks?

Answers

Answer: 7:5

Step-by-step explanation: You just reverse it.

Since the ratio of blue blocks to red blocks is 5:7, you’d need to flip it in order to get the ratio of red blocks to blue blocks. This would be 7:5.

What is the result when the number 27 is increased by 1.6%?

Answers

Answer:

27.432

Step-by-step explanation:

27 = 100%

divide by one hundred to get one percent

0.27 = 1%

Divide this by two to get 0.5%

0.135 = 0.5%

Divide by 5 to get 0.1%

0.027 = 0.1%

Add

0.27 + 0.135 + 0.027 = 0.432 =1.6%

Add 0.432 to 27

27.432

The temperature is 92. The temperature decreases for 5 hours. Each hour, the temperature decreases by 2. Then the temperature rises 14 in one hour. What is the temperature after 6 hours?

Answers

After 6 hours the temperature is 96.
Explanation: 5x2=10 92-10=82 82+14=96.

-4x + y = -20 -2x - 2y = 10

X=

Y=

Answers

Answer: (x, y) = (-5, -10)

Step-by-step explanation: too lazy

Solve for n. 24 = 3(n -5)

Answers

Answer:

n=13

Step-by-step explanation:

24=3(n-5)

24=3n-15

-3n=-24-15

-3n=-39

n=13

y is inversely proportional to x.when y=7 x=9 a) work out an equation connecting y and x b) work out the value of y when x=21

Answers

Answer:

a) y = k/x

7 = k/9

b) y = 3

Step-by-step explanation:

From the question, we are told that:

y is inversely proportional to x.

Mathematically:

y ∝ 1/x

y = k × 1/x

y = k/x

k = Constant of Proportionality

a) work out an equation connecting y and x

To find this Equation,

y = k/x

when y=7 x=9

Hence:

7 = k/9

b) work out the value of y when x=21

We find the value of k first

7 = k/9

k = 7 × 9

k = 63

Hence, the value of y when x=21

y = k/x

k = 63, x = 21

y = 63/21

y = 3

A box of chocolates contains milk chocolates and dark chocolates in the ratio 4:3
The box contains 35 chocolates
how many milk chocolates are there in the box?

Answers

Answer:

20 milk chocolates

Step-by-step explanation:

The first step is adding together 4 + 3. You will get 7. This is the total number of units in the box.

Then, divide 35 by 7. You will get 5 as the answer.

To find the number of milk chocolates, multiply 5 and 4. You will get 20 as the answer.

4x+3x=35
7x=35
x=5

milk chocolate 4(5) = 20
dark chocolate 3(5) = 15

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