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Andre45 [30]
2 years ago
7

Can someone please help me with math

Mathematics
1 answer:
Rus_ich [418]2 years ago
8 0

Answer:

7 is B

8 is C

9 is D

Step-by-step explanation:

Hey There!

So as you can see in the first image the slope of a line that passes through the coordinates (-3,1) and (5,-7) is -1

As you can see in the second image the equation of the line that passes through the points (-2,5) and (3,15) is y=2x+9

The last one is D because the equation is a=2b-3

The statement that says a is equal to 3 LESS then TWICE B is correct cause its saying that 2b - 3 is equal to a

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Sergeu [11.5K]
l=2 \pi r
r=0.25 miles
l=2×\pi×0.25
 =0.5 × 3.14
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4 years ago
The ratio of coins to notes in a bag is 3 to 8. If there are a total of 24 coins then how many notes are there? 
BaLLatris [955]
Set up a proportion 
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they have a relationship so we can set them equal to each other.
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3 years ago
Katy is walking toward a bridge. See full question below
oksano4ka [1.4K]

Answer:

Step-by-step explanation:

No c

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5 0
3 years ago
Read 2 more answers
Solve x+4 ≤ 19<br><br> type answer in comments below and post them please.
RoseWind [281]

Answer:

x \leqslant 15

Step-by-step explanation:

To find the answer we have to first group the like terms:

x + 4 \leqslant 19 \:

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4 0
2 years ago
Find the area or this triangle ​
Arlecino [84]

Answer:

Area of triangle = 15 square units

Step-by-step explanation:

We need to find area of the triangle, given the vertices:

A=(4,0)

B=(1,5)

C=(7,5)

The formula used is: Area\:of\:triangle=\frac{1}{2}(x_1(y_2-y_3)+x_2(y_3-y_1)+x_3(y_1-y_2))

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Putting values and finding area

Area\:of\:triangle=\frac{1}{2}(x_1(y_2-y_3)+x_2(y_3-y_1)+x_3(y_1-y_2))\\Area\:of\:triangle=\frac{1}{2}(4(5-5)+1(5-0)+7(0-5))\\Area\:of\:triangle=\frac{1}{2}(4(0)+1(5)+7(-5))\\Area\:of\:triangle=\frac{1}{2}(0+5-35)\\Area\:of\:triangle=\frac{1}{2}(-30)\\Area\:of\:triangle=-15

We will be ignoring negative sign, because area of triangle is positive.

So, Area of triangle = 15

3 0
3 years ago
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