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3 years ago

Find the equation of a line that passes through the points (2,13) and (1,8)

Mathematics

1 answer:

kkurt [141]3 years ago

7 0

Answer:

$y = 5x + 3$

I hope this helps!

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I need help!!!!!! what is x&y?

Nady [450]

⭐x=7 because
10x+65=135
10x=70
x=7
28=4y-4
32=4y
⭐y=8
I hope this helps

8 0

3 years ago

Solve

PIT_PIT [208]

A cylinder of radius r cm and height h cm has a curved surface area A cm². Where –

A = 2πrh cm²

a) We are asked to find formula for h.

$\qquad$ $\purple{ \bf \longrightarrow A=2 \pi rh }$

First, overturn the equation

$\qquad$ $\sf \longrightarrow 2 \pi rh =A$

Divide both sides by 2πr

$\qquad$ $\sf \longrightarrow \dfrac{2\pi rh}{2\pi r } = \dfrac{A}{2\pi r}$

$\qquad$ $\sf \longrightarrow \dfrac{\cancel{2 \pi r }h}{\cancel{2\pi r} } = \dfrac{A}{2\pi r}$

$\qquad$ $\purple{\bf \longrightarrow h = \dfrac{A}{2 \pi r }}$

b) Again, we are given –

Curved surface area, A = 93 cm²
Radius, r = 2.5 cm
π = 3.1

$\qquad\qquad\quad\underline{\sf{Substituting \ Values \ :}}$

⠀⠀⠀━━━━━━━━━━━━━━━━━━━━━━━━━━

$\qquad$ $\bf \longrightarrow h = \dfrac{A}{2\pi r }$

$\qquad$ $\sf \longrightarrow h = \dfrac{93}{2 \times 3.1 \times 2.5 }$

$\qquad$ $\sf \longrightarrow h = \dfrac{93}{15.5}$

$\qquad$ $\sf \longrightarrow h =\cancel{ \dfrac{93}{15.5}}$

$\qquad$ $\pink{ \bf \longrightarrow h = 6\: cm }$

Henceforth, height of the cylinder is 6 cm.

5 0

2 years ago

Read 2 more answers

HELP PLEASE DUE DATE IS IN 30 MIN I DONT KNOW THE ANSWER I GIVE BRAINLIEST PLEASE THANK YOU

lesya [120]

Answer: (-1/2, 0)

Step-by-step explanation: A reflection across the y-axis would simply mirror the x coordinate, making it x=-1/2 instead of x=1/2

4 0

2 years ago

HELP!!!!!! I think its A bit not completely sure!

SVEN [57.7K]

Heya!!!

Answer to your question is
Option A

Kindly refer to attachment for solution

Hope it helps *_*

8 0

3 years ago

48 girls, 41 boys, and 5 teachers sat in the gym. Write the ratio of girls to boys in three ways.

Anika [276]

Answer:

Step-by-step explanation:

The answer is D because the question is asking for girls to boys. So anything that has 5 in it is wrong because it isn't asking for teachers, which eliminates A. So since it is asking girls to boys the number order has to be 48 then 41 because it is asking for girls first then to boys. So that makes B wrong. When it comes to the fraction part of the ratio the first number it is asking for (which is girls) always goes on top. So that eliminates C which leaves only answer to be D.

7 0

3 years ago