MATHEMATICS MIDDLE SCHOOL

How many solutions are possible for a triangle with B =44º, a = 23, and b = 12?

Answers

Answer 1

Answer:

Answer:

Step-by-step explanation:

First, use law of sines to find A.

(sin A) / a = (sin B) / b

(sin A) / 23 = (sin 44º) / 12

sin A = 1.33

It's impossible for sine to be greater than 1. Therefore, there are no solutions.

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Tyler wants to buy a new television that costs $312. He has already saved $96. He plans to save $24 per week over the nextfew weeks. Which shows the number of weeks Tyler will need to save to be able to buy the television?
0
70-76 -12
16 30
070-76-17 **
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that
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Answers

Answer: 9 weeks

Step-by-step explanation:

312 216/24= 9

-96

----

2 1 6

Answer:

it will be 9 weeks

Step-by-step explanation:

Select the true statement about triangle ABC. Need answer asap

Answers

Answer: The correct option is

(B) $\sin C=\cos A.$

Step-by-step explanation: We are given to select the true statement about the triangle ABC shown in the figure.

From the figure, we note that

triangle ABC is right-angled at angle B, where hypotenuse, AC = 13, BC = 5 and AB = 12.

From the trigonometric ratios, we have

$\sin A=\frac{\textup{perpendicular}}{\textup{hypotenuse}}=(BC)/(AC)=(5)/(13),\n\n\n\cos A=\frac{\textup{base}}{\textup{hypotenuse}}=(AB)/(AC)=(12)/(13),\n\n\n\cos B=\frac{\textup{base}}{\textup{hypotenuse}}=(BC)/(AC)=(5)/(13),\n\n\n\sin C=\frac{\textup{perpendicular}}{\textup{hypotenuse}}=(AB)/(AC)=(12)/(13),\n\n\n\sin A=\frac{\textup{perpendicular}}{\textup{hypotenuse}}=(BC)/(AC)=(5)/(13),\n\n\n\tan A=\frac{\textup{perpendicular}}{\textup{base}}=(BC)/(AB)=(5)/(12).$

Therefore, we get

$\sin C=\cos A.$

Thus, option (B) is CORRECT.

B. sinC= cosA
Remember SohCahToa.
The sine is equal to opposite/hypotenuse and cosine is equal to adjacent over hypotenuse.
The sine of C is 12/13 and the cosine of A is 12/13.

A trapezoid has an area of 31.57 square inches. One base is 1.7 inches long. The height measures 8.2 inches. What is the length of the other base?This IXL has been getting on my nerves. Someone please help?

Answers

Answer:Do u still need help?

Step-by-step explanation:

???

What is -5x minus x? This one's a tricky one for me. The question is (-5) - x - 10. Thanks if you answer!

Answers

If you start in the lobby, go down 5 floors, and then
go down one more floor, where are you ?

Are you not then 6 floors below zero ?

The expression (2x2)3 is equivalent to _____.

6x2

6x5

8x6

Answers

6x2, because using pemdas, 2x2= 4 then 4x3=12. The answer must equal 12, and 6x2 does.

Evaluate. Let n = 2.Enter the answer in lowest terms.

Answers

Numerator:
8n+3n-7
= 11n-7

Plug n=2 in 11n-7, we have:
11*2-7= 15

Denominator:
6*2n-3(n-1)
= 12n-3n+3 (distributive property)
= 9n+3

Plug n=2 into 9n+3, we have:
9*2+3= 21

15/21
= (15/3) / (21/3)
= 5/7

The final answer is 5/7~

First you do the top
8n+3n-7=8*2+3*2-7=16+6-7= 22-7=15
Then you found out the bottom
6*2n-3(n-1)=6*2*2-3(2-1)=6*2*2-3*1=6*4-3*1=24-3*1=24-3=21
15/21 is your answer.
Hope this helps! :)

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Can someone explain how to do this? I can’t figure it out..