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sweet [91]
3 years ago
8

Find the value of in the triangle shown below. 13 12 X

Mathematics
1 answer:
Lynna [10]3 years ago
5 0

Answer:

D) 5

Step-by-step explanation:

a²+b²=c²

12²+b²=13²

144+b²=169

b²=169-144

b²=25

b=√25

b=5

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Neko [114]
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3 0
3 years ago
the proper angle for a ladder is about 75 degrees. from the ground. suppose you have a 9 foot ladder. how far from the house sho
icang [17]

ANSWER:

2.33 foot

STEP-BY-STEP EXPLANATION:

We can calculate the distance from the staircase to the wall, by means of the trigonometric cosine ratio, which is the following:

\begin{gathered} \cos \theta=\frac{\text{ adjacent}}{\text{ hypotenuse}} \\ \theta=75\text{\degree} \\ \text{ hypotenuse = 9 foot} \\ \text{adjacent = x} \end{gathered}

Replacing and solving for x:

\begin{gathered} \cos 75=\frac{x}{9} \\ x=9\cdot\cos 75 \\ x=2.33 \end{gathered}

The distance would be 2.33 foot

3 0
1 year ago
If you can’t see the answer choices , they are <br> A. 9<br> B. 8 <br> C. 10 <br> D. 12
ANTONII [103]

Answer:a)9

I think

Step-by-step explanation:

6 0
2 years ago
On a compass, due east is a 1/4 turn clockwise from due north. How many degrees are in a 1/4 turn?
vladimir2022 [97]

Answer:

90^o

Step-by-step explanation:

We have been given that on a compass, due east is a 1/4 turn clockwise from due north.

Since we know that a compass is in form of a circle and the measure of degrees in a circle is 360 degrees.

To find the number of degrees in a one-fourth turn, we will divide 360 by 4.

\text{Number of degrees in a 1/4 turn of compass}=\frac{360^o}{4}

\text{Number of degrees in a 1/4 turn of compass}=90^o

Therefore, there are 90 degrees in a 1/4 turn of compass.

4 0
3 years ago
Read 2 more answers
Mark buys a wooden board that is feet long. The cost of the board is $1.50 per 5 1/4 foot, including tax. What is the total cost
Lelechka [254]
It would just be the tot foot time the cost

7.5 X 0.50 = $3.75
8 0
3 years ago
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