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3 years ago

Please help! This is a big part of my grade. I will give brainliest.

Mathematics

1 answer:

Lynna [10]3 years ago

8 0

Answer:

8658 ft.

Step-by-step explanation:

Volume= length*width*height

rectangle= 21*18*13= 4914

triangle= 16*18*13= 3744

4914+3744=8658

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Look at the information below. The sum of the measures of angle M and angle R is 90°. © The measure of angle M is (5x + 10). The

kupik [55]

Answer:

Solution given;

<M=5x+10

<R=55

<M+<R=90°

5x+10+55=90°[is a required equation]

now solving it

5x=90-65

5x=25

x=25/5

x=5is your answer.

8 0

2 years ago

Which graph shows that ice cream sales increase when temperatures increase

fenix001 [56]

Answer:

.hh

Step-by-step explanation:

5 0

3 years ago

Read 2 more answers

my grandma's secret recipe requires 14 eggs for every 4 cups of flour how many eggs will I need if I used 16 cups of flour pls a

tekilochka [14]

56 eggs is the final answer

if 4×4= 16 cups, then 14×4= 56 eggs

8 0

3 years ago

Rocket is launched from a tower. The height of the rocket, y in feet, is related to the time after launch, x in seconds, by the

Brut [27]

Answer:

The time that the rocket will hit the ground is 12.87 seconds.

Step-by-step explanation:

Given : The rocket is launched from a tower $y=-16x^2+199x+90$ . The height of the rocket, y in feet, is related to the time after launch, x in seconds, by the given equation.

To find : The time that the rocket will hit the ground ?

Solution :

When the rocket hit the ground i.e. height became zero y=0,

Equation is $y=-16x^2+199x+90$

Substitute y=0,

$-16x^2+199x+90=0$

Using quadratic formula, $x=\frac{-b\pm\sqrt{b^2-4ac}}{2a}$

$x=\frac{-(199)\pm\sqrt{(199)^2-4(-16)(90)}}{2(-16)}$

$x=\frac{-199\pm\sqrt{45361}}{-32}$

$x=\frac{-199+\sqrt{45361}}{-32},\frac{-199-\sqrt{45361}}{-32}$

$x=-0.43,12.87$

Reject negative value.

The time taken is 12.87 seconds.

5 0

3 years ago

When the polynomial in P(x) is divided by (x + a), the remainder equals P(a)

disa [49]

Answer:

This is a false statement:

Step-by-step explanation:

According to Remainder Theorem dividing the polynomial by some linear factor x + a, where a is just some number. As a result of the long polynomial division, you end up with some polynomial answer q(x) (the "q" standing for "the quotient polynomial") and some polynomial remainder r(x).

P(x)= (x+/-a) q(x)+r(x)

P(x)=(x+a) q(x)+r(x). Note that for x=-a

P(-a)=(-a+a) q(-a)+r(-a)= 0* q(-a)+ r(-a)

P(-a)=r(-a)

It means that P(-a) is the remainder not P(a)

Thus the given statement is false....

7 0

3 years ago