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Sonja [21]
3 years ago
7

Can someone please help me with this question

Mathematics
1 answer:
Nataliya [291]3 years ago
7 0
Your answer will be choice A.
a = 15.1, b = 23.5, perimeter = 56.6
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What is an equation of the line that passes through the points (0, -7) and (-8, 3)?
avanturin [10]

Answer <u>(assuming it can be in slope-intercept form)</u>:

y = -\frac{5}{4} x-7  

Step-by-step explanation:

1) First, find the slope of the line by using the slope formula, m = \frac{y_2-y_1}{x_2-x_1}. Substitute the x and y values of the given points into the formula and solve:

m = \frac{(3)-(-7)}{(-8)-(0)}\\m = \frac{3+7}{-8-0} \\m = \frac{10}{-8} \\m = -\frac{5}{4}

So, the slope is -\frac{5}{4}.

2) Now, use the point-slope formula y-y_1 = m (x-x_1) to write the equation of the line in point-slope form. Substitute real values for the m, x_1, and y_1 in the formula.

Since m represents the slope, substitute -\frac{5}{4} in its place. Since x_1 and y_1 represent the x and y values of one point the line intersects, choose any one of the given points (either one is fine, it will equal the same thing at the end) and substitute its x and y values into the formula as well. (I chose (0, -7), as seen below.) Then, isolate y to put the equation in slope-intercept form and find the following answer:

y-(-7) = -\frac{5}{4} (x-(0))\\y + 7 = -\frac{5}{4} x\\y = -\frac{5}{4} x-7

7 0
2 years ago
Mr. Notardonato is going to run a half marathon, which is 13.1 miles. How many inches are in 13.1 miles? (
lakkis [162]

Answer:

830,016 inches

Step-by-step explanation:

this is how many inches

3 0
3 years ago
MODELING REAL LIFE A post-and-beam frame for a shed is shown in the diagram. Does the brace form a right triangle with the post-
Rainbow [258]

To find out if the triangle is a right triangle, we must check if the following equation is true:

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on the left side, we have:

(15)^2+(20)^2=225+400=625^{}

and on the right side, we have:

(25)^2=625

since on both sides we get 625, we have that the brace forms a right triangle.

7 0
1 year ago
At a concert, 20% of the audience members were teenagers. if the number of teenagers at a concert was 360, what was the total nu
Harlamova29_29 [7]

Answer:

The total number of audience members is 1800.

Step-by-step explanation:

In order to find this, we need to divide the number of teenagers by the percentage share.

360/.2 = 1800

7 0
3 years ago
I need help can you guys help me out thank you!! p.s. the word is meaters
Gala2k [10]
It’s 76 meters hoped it helped!
6 0
3 years ago
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