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Savatey [412]
3 years ago
12

Evaluate the numerical expression -12.2 - 6.4 divided 0.8

Mathematics
1 answer:
liraira [26]3 years ago
3 0

Answer:

-23.25

Step-by-step explanation:

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Raina drove 936 miles in 13 hours.
valentinak56 [21]

Answer:

8 hours

Step-by-step explanation:

72 miles per hour

576/72= 8

3 0
3 years ago
Read 2 more answers
What should the following rate be divided by to convert it to a unit rate?<br> 6 inches<br> 12 hours
iragen [17]

Answer:

0.5 Inches per hour

Step-by-step explanation:

Most normal people won't know exactly what unit rate is, or how to calculate it. So I'm here to help!

This is a fraction equal to

6 inches ÷ 12 hours

We want a unit rate where

1 is in the denominator,

so we divide top and bottom by 12

6 inches ÷ 12

12 hours ÷ 12

=  

0.5 inches

1 hour

=  

0.5 inches

hour

= 0.5 inches per hour

Glad I was able to help!

7 0
3 years ago
A surveyor found the angle of elevation from the ground to the top of the building at two locations 20 feet apart as shown below
Serga [27]

Applying the sine ratio and law of sines, the correct measurements are:

B. m∠B = 15°

E. h ≈ 31.28 ft.

<h3>What is the Sine Ratio?</h3>

Sine ratio that can be used to determine the side length of a right triangle is, sin ∅ = opposite side/hypotenuse.

Find c using the law of sines:

C = 33°

A = 180 - 48 = 132 [linear pair]

B = 180 - 33 - 132 = 15° [triangle sum theorem]

b = 20 ft

c = ?

Using the law of sines, b/sin B = c/sin C, we have:

20/sin 15 = c/sin 33

(c)(sin 15) = (20)(sin 33)

c = (20 × sin 33)/sin 15

c ≈ 42.09

Use the sine ratio to find h:

∅ = 48°

Hypotenuse = c = 42.09

Opposite = h = ?

sin 48 = h/42.09

h = (sin 48)(42.09)

h ≈ 31.28

The correct measurements are:

B. m∠B = 15°

E. h ≈ 31.28 ft

Learn more about the sine ratio on:

brainly.com/question/2920412

#SPJ1

4 0
2 years ago
What times what equals 59
sweet-ann [11.9K]

59 is a "prime number".  It has no factors except ' 1 ' and itself.

So the only possibility is  1 x 59 .

5 0
3 years ago
Which of the following are NOT congruent?
algol13

the adjacent angles in a parallelogram

5 0
3 years ago
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