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2 years ago

Simplify the product -3x(x^2+3x-1)

Mathematics

1 answer:

stepladder [879]2 years ago

7 0

Answer:

Hii, okay so the answer is, -3x^3-9x^2-1

Hope this helps!

Step-by-step explanation:

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Solve for X:<br><br> 125^x = 25^(x+2)

creativ13 [48]

X=4

5^3=125 5^2=25

5^3x= 5^2(x+2)
3x=2x+4
x=4

4 0

3 years ago

Which ordered pairs make the inequality true?

salantis [7]

1.
$(-2,3) \\
x=-2 \\
y=3 \\ \Downarrow \\
-2+3 \times 3$

The ordered pairs (-2,3) and (5,1) make the inequality true.

2.
$15y-3(4y+10)=15y-3 \times 4y-3 \times 10= 15y-12y-30= \\
=3y-30$

The simplified form of the expression is 3y-30.

7 0

3 years ago

A person is standing 50 ft from a statue. The person looks up at an angle of elevation of 16o when staring at the top of the sta

NemiM [27]

Answer:

The height of the statue is 21.4 feet

Step-by-step explanation:

We are given

A person is standing 50 ft from a statue

The person looks up at an angle of elevation of 16 degree when staring at the top of the statue

hen the person looks down at an angle of depression of 8 degree when staring at the base of the statue

Firstly, we will draw diagram

In triangle ABF:

FC=50

we can use trig formula

$tan(16)=\frac{y}{50}$

$y=50tan(16)$

$y=14.33727ft$

now, we can find x

In triangle DEF:

we can use trig formula

$tan(8)=\frac{x}{50}$

$x=50tan(8)$

$x=7.0270ft$

we can see that

height of statue =x+y

so, the height of statue is

$=14.33727+7.0270$

$=21.4ft$

6 0

3 years ago

Write the domain and rang of h using interval notation

34kurt

We can write the domain and range in interval notation, which uses values within brackets to describe a set of numbers. In interval notation, we use a square bracket [ when the set includes the endpoint and a parenthesis ( to indicate that the endpoint is either not included or the interval is unbounded.

3 0

2 years ago

Which of the following is not a tool for monitoring your finances?

Akimi4 [234]

You may want to take this question over to the business category though I believe the answer is C.

The others show how your money is moving, how it's being spent, where you plan on spending it, how much you save, etc. Wouldn't think liability is one of those.

4 0

3 years ago