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nevsk [136]
2 years ago
6

HELP WHICH ARE CORRECT ??

Mathematics
1 answer:
alexandr402 [8]2 years ago
8 0
The second (-35 + 21x) and the fourth one (21x-5) are true. The rest of them are false.
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HELP PLSS<br><br> What is the slope of the line that passes through the points (-2, -5) and (6, 7)?
Serjik [45]

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slope =  \frac{7 - ( - 5)}{6 - ( - 2)}  \\

slope =  \frac{7 + 5}{6 + 2}  \\

slope =  \frac{12}{8}  \\

slope =  \frac{4  \times 3}{4 \times 2}  \\

slope =  \frac{3}{2}  \\

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3 0
3 years ago
Read 2 more answers
The length of the hypotenuse of a 30-60-90 triangle is 9. What is the perimeter?
denis23 [38]
The perimeter of any figure, is all its sides summed up

now, notice the picture below, using the 30-60-90 rule, that's "x"

now, get the other sides, since you know what "x" is, and sum them up, that's the perimeter

5 0
2 years ago
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Geometry math question no Guessing and Please show work
WITCHER [35]

Answer: Choice A) 15 feet

=====================================

x = length of fourth side in quadrilateral ABCD

Have a look at the attached image I've posted. I made a chart that lines up the side lengths from largest to smallest. Note how the first two items in the bottom row are blank. We don't know these values and we don't need to find out in order to find x.

Based on the last two columns of that table, we can form the proportion below, which is then used to isolate x.

30/12 = x/6

30*6 = 12*x ... cross multiply

180 = 12*x

12*x = 180

x = 180/12 ... divide both sides by 12

x = 15

5 0
3 years ago
How many ziros in the number 1.8e10?
Damm [24]
<span>You spelt zero wrong and theres one zero next to the 1. Comments; Report. 0 0 0. Thanks. 0. Log in to add a comment · 12ilett; Beginner</span>
8 0
3 years ago
Find the area and circumference of the circle. Use 3.14 for A.
Kaylis [27]

Answer:

A = 63.59

C = 28.26

Step-by-step explanation:

r = 4.5

Area of a circle:

A = πr²

A = 3.14(4.5²)

A = 3.14(20.25)

A = 63.59

Circumference:

C = 2πr

C = 2(3.14)(4.5)

C = 28.26

8 0
3 years ago
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