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Rudik [331]
3 years ago
9

What is answer to -7b=-4

Mathematics
1 answer:
tensa zangetsu [6.8K]3 years ago
3 0
-7b=-4 \\\\ b=\frac{-4}{-7} \\\\ \boxed{b=\frac{4}{7}}
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Calculate the distance between (4,9) and (-2,6) using the distance formula.
MAVERICK [17]

Answer:

\large\boxed{d=3\sqrt5}

Step-by-step explanation:

\text{the formula of a distance between two points}\ A(x_1,\ y_1)\ \text{and}\ B(x_2,\ y_2):\\\\|AB|=\sqrt{(x_2-x_1)^2+(y_2-y_1)^2}\\=========================\\\\\text{We have}\ (4,\ 9)\ \text{and}\ (-2,\ 6).\ \text{Substitute:}\\\\d=\sqrt{(-2-4)^2+(6-9)^2}=\sqrt{(-6)^2+(-3)^2}=\sqrt{36+9}=\sqrt{45}\\\\\sqrt{45}=\sqrt{9\cdot5}=\sqrt9\cdot\sqrt5=3\sqrt5

6 0
3 years ago
The distribution of ages of runners in a marathon is approximately normal. The oldest participant was 80 and the youngest was 13
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3 years ago
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3 years ago
Given the slope of y+2=3(x-7) and a point on the line
zaharov [31]

Hi there!  

»»————- ★ ————-««

I believe your answer is:  

m = 3

(7, -2)

»»————- ★ ————-««  

Here’s why:  

⸻⸻⸻⸻

The equation given is in point-slope form.

⸻⸻⸻⸻

y - y_1 = m(x-x_1)\\\\m-\text{slope}\\\\(x_1,y_1)-\text{point}

⸻⸻⸻⸻

The '3' is in the 'm' spot.

The y value is '-2', (y -(-2)) and the 'x' value is 7.

The point of the line is (7, -2) and the slope is 3.

⸻⸻⸻⸻

»»————- ★ ————-««  

Hope this helps you. I apologize if it’s incorrect.  

3 0
3 years ago
A middle school principal wants to change the lunch menu. The principal surveys the students to determine how the students would
guapka [62]

Answer:

B

Step-by-step explanation:

B is the best answer because it's a lot of students and unbiased

3 0
3 years ago
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