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2 years ago

Please help me with this math thingy

Mathematics

1 answer:

Leona [35]2 years ago

6 0

The slope should be 1 because the points move up and to the side once every time it goes up. And it’s a positive slope not negative

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I am so lost, please help

skelet666 [1.2K]

Answer:

$u=\frac{9}{t}-\frac{1}{2} a t$

Step-by-step explanation:

Step 1: Given equation: $9=\frac{1}{2} a t^{2}+u t$

To get u, by subtraction equality property subtract both sides of the equation by $\frac{1}{2} a t^{2}$ .

$\Rightarrow 9-\frac{1}{2} a t^{2}=\frac{1}{2} a t^{2}+u t-\frac{1}{2} a t^{2}$

$\Rightarrow 9-\frac{1}{2} a t^{2}=u t$

Step 2: By division equality property, divide both sides of the equation by t.

$\Rightarrow \frac{9-\frac{1}{2} a t^{2}}{t}=\frac{u t}{t}$

$\Rightarrow \frac{9}{t}-\frac{1}{2} a t=u$

Therefore, $u=\frac{9}{t}-\frac{1}{2} a t$ .

So, in Emily’s physics class, she got $u=\frac{9}{t}-\frac{1}{2} a t$ .

7 0

2 years ago

Find the equations of a line through these 2 points

stiv31 [10]

answer is 2.2 66 88862 u88272

4 0

2 years ago

Your cousin is 8 years older than your brother. Three years ago, your cousin was twice as old as your brother. How old is your c

ValentinkaMS [17]

Answer:

19 and 11

Step-by-step explanation:

8 0

3 years ago

Select all that apply. Which lines have a slope of -2? Line a line b line c line d

katrin2010 [14]

Do you have a photo of the options?

8 0

2 years ago

Read 2 more answers

Pls helpppppp this is a math emergency!

netineya [11]

Answer:

19.4in

Step-by-step explanation:

1) formula for area of a triangle:

(b*h)/2=a

the area and height are already given so lets substitute them in the formula.

(b*23.8)/2=230.86

1) multiply by 2 on both sides

b*23.8=461.72

divide by 23.8 on both sides

b=19.4

the base is 19.4 in

hope this helps

3 0

2 years ago

Read 2 more answers