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2 years ago

I really need help if somebody could explain this into detail and show me how would really appreciate it please

Mathematics

2 answers:

sleet_krkn [62]2 years ago

4 0

Top guy correct (MARK HIM Brainiest)

marishachu [46]2 years ago

3 0

Answer: y = (5x)^2

Step-by-step explanation: You're finding the inverse.

f(x) = $\sqrt{x}$ /5 --> y = $\sqrt{x}$ /5 (they mean the same thing)
x = $\sqrt{y}$ /5 (switch x and y)
5x = $\sqrt{y}$ (multiple both sides by 5)
(5x)^2 = y (square both sides) --> the first answer choice

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How do i do this question? please help

valina [46]

Put the event number at the bottom where it say event

3 0

3 years ago

Whoever answers first ill mark brainlist

aivan3 [116]

Answer:

∠S = 19°

Step-by-step explanation:

Since all angles in a triangle add up to 180°, we must first find how much is left.

And since we know that the two lines are congruent, we know that the two other angles will be the same. So we divide the remaining by 2

So both other angles are 19° meaning that ∠S is 19°

Hope this was helpful!

8 0

1 year ago

Read 2 more answers

Pablo has completed 44 deliveries so far this week. He needs to make 55 deliveries for the week. What

Dennis_Churaev [7]

Answer:

Step-by-step explanation:

step one:

completed delivery = 44

total delivery to be made= 55

Step two

Required is the percentage completed

the formula is

=completed/total*100

=44/55*100

=0.8*100

=80%

Hence Pablo has completed 80% of the deliveries so far

3 0

2 years ago

Solve for x 3x-8/2=x - 6

Liula [17]

Answer: X=-1

Step-by-step explanation:

4 0

2 years ago

Read 2 more answers

A fastball is hit straight up over home plate. The ball's height, h (in feet), from the ground is modeled by ℎ = −16푡 ଶ+103푡+5 w

Liono4ka [1.6K]

Question:

A fastball is hit straight up over home plate. The ball's height, h (in feet), from the ground is modeled by h(t)=-16t^2+80t+5, where t is measured in seconds. Write an equation to determine how long it will take for the ball to reach the ground.

Answer:

$t = 5.0625$

Step-by-step explanation:

Given

$h(t)=-16t^2+80t+5$

Required

Find t when the ball hits the ground

This implies that h(t) = 0

So, we have:

$0=-16t^2+80t+5$

Reorder

$-16t^2+80t+5 = 0$

Using quadratic formula, we have:

$t = \frac{-b\±\sqrt{b^2 - 4ac}}{2a}$

Where

$a = -16$ $b =80$ $c = 5$

So, we have:

$t = \frac{-80\±\sqrt{80^2 - 4*-16*5}}{2*-16}$

$t = \frac{-80\±\sqrt{6400 +320}}{-32}$

$t = \frac{-80\±\sqrt{6720}}{-32}$

$t = \frac{-80\±82.0}{-32}$

This gives:

$t = \frac{-80+82.0}{-32}$ or $t = \frac{-80-82.0}{-32}$

$t = \frac{2}{-32}$ or $t = \frac{-162}{-32}$

$t = -\frac{2}{32}$ or $t = \frac{162}{32}$

But time can not be negative.

So, we have:

$t = \frac{162}{32}$

$t = 5.0625$

<em>Hence, time to hit the ground is 5.0625 seconds</em>

3 0

2 years ago