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2 years ago

Help 8th grade math pls ;-;

Mathematics

1 answer:

Sever21 [200]2 years ago

6 0

Answer:

19.1 feet

Step-by-step explanation:

Length of the ladder = 20 feet

Distance from the ladder to the wall = 6 feet

Height of the ladder on the wall = x

x² + 6² = 20²

x² = 20² - 6²

x² = 364

x = 19.1 feet (Rounded to nearest tenth)

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Please help got to get grade up

dusya [7]

Answer:

Step-by-step explanation:

The ratio of abc/def=1.5

15/1.5=10

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5 0

1 year ago

If it’s costs 60 cents for 125 grammes. How much would 100 grammes cost?

beks73 [17]

<h3>✽ - - - - - - - - - - - - - - - ~Hello There!~ - - - - - - - - - - - - - - - ✽</h3>

➷ Work out the cost per gram

60/125 = 0.48

It costs 0.48 cents per gram

Multiply this by 100 to get the answer:

0.48 x 100 = 48

It would cost 48 cents

➶ Hope This Helps You!

➶ Good Luck (:

➶ Have A Great Day ^-^

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3 0

2 years ago

Read 2 more answers

Sloane kicked a soccer ball off the ground at a speed of 36 feet per second. the height of the ball can be represented by the fu

deff fn [24]

The total time in seconds the ball will take to travel before returning the ground is 2.25 seconds.

<h3>What is factorisation?</h3>

The breaking or breakdown of an entity (such as an integer, a matrices, or a polynomials) into a products of another unit, or factors, whose multiplication results in the original number, matrix, etc., is known as factorisation or factoring in mathematics.

Calculation for the time;

Let 't' be the time in second the ball will travel.

Let H(t) be the total height travelled by the ball.

The equation of the height is given as

$H(t)=-16 t^{2}+36 t$

As soon as the ball will return to the ground the total height will become zero.

So, put equation of height equal to zero.

$-16 t^{2}+36 t=0$

Factorise the above equation;

$-16 t\left(t-\frac{9}{4}\right)=0$

Put each value equals to zero to get the value of time.

$\begin{aligned}&t=0 \mathrm{sec} \\&t=9 / 4=2.25 \mathrm{sec}\end{aligned}$

As, time can not be zero

Therefore, the total time taken by the ball to return to the ground is 2.25 sec.

To know more about factorisation, here

brainly.com/question/25829061

#SPJ4

4 0

10 months ago

In the figure below, AB is a diameter of circle P.

saw5 [17]

Answer:

317

Step-by-step explanation:

I did this on khan academy

6 0

2 years ago

Simplify completely 12 times x to the third power minus 4 times x to the 2nd power plus 8 times x all over negative 2 times x. (

jok3333 [9.3K]

So we want to simplify
$\frac{12 {x}^{3} - 4 {x }^{2} + 8x }{ - 2x}$
We split the numerators,

$= \frac{12 {x}^{?3} }{ - 2x} - \frac{4x {}^{2} }{ - 2x} + \frac{8x}{ - 2x}$
$= - 6 {x}^{2} + 2x - 4$
The correct answer is B.

5 0

2 years ago