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2 years ago

1. Write your answer using only positive exponents. a. (3x2)(2x-3)

Mathematics

2 answers:

Mkey [24]2 years ago

5 0

Answer:

Brainliest!

Step-by-step explanation:

see picture

-math

way

nata0808 [166]2 years ago

3 0

Answer:

6/x

Step-by-step explanation:

(3x^2)(2x^-3)

Multiply the coefficients

3*2 = 6

Add the exponents

x^2 * x^-3 = x^(2-3) = x^-1

We know that a^-b = 1/ a^b

6 x^-1 = 6 * 1/x^1 = 6/x

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What is the rate of change from -1 to 4?

lana66690 [7]

Answer:

Step-by-step explanation:

-1+(1)= 0

0+(4)=4

1+4=5

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2 years ago

1/4(x+2)+4=12 <br> x=? Help idk

Gnoma [55]

$\frac{1}{4}(x+2)+4=12$

$\frac{1}{4}(x+2)=8$

$x+2=32$

$x=30$

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2 years ago

Read 2 more answers

A standard interior staircase has steps each with a rise (height) of 21 cm and a run (horizontal depth) of 24 cm. Research sugge

Alisiya [41]

Answer:

The staircase would extends 1.20 m if the changes were made.

Step-by-step explanation:

Acording tho the statement the total heigth is 5.04 m, that is 504 cm, each steps rises 21 cm. with this information we can calculte how many steps are in the whole staircase:

$Number steps= \frac{Total heigth}{each step} \\Number steps= \frac{504}{21} = 24 steps$

To calculate how much the staircase will extend, whe have to multiply the horizontal depth times the number of steps.

using the run of 24 cm that gives us a lengt of 576 cm and if the changes were made the new length will be 696 cm.

So the staircase would extend an amount of (696 - 576), that is 120 cm, or 1.20 m, if the changes were made.

6 0

2 years ago

The function f(x) varies directly with x and f(x)=12 when x=8

malfutka [58]

F(x) = kx
12 = 8k
k = 12/8 = 3/2

Required equation is f(x) = 3/2 x

4 0

2 years ago

Find the taxable income of a married couple with two children, who have a combined income of $75,000.

Dima020 [189]

Answer:

$47,200

Step-by-step explanation:

Given :

The total income of a married couple = $75,000.

Number of children = 2

Therefore to find the taxable income of a U.S. family is given by the following formula ---

taxable income = total income- exemption deduction - standard deduction

We know that exemption deduction for a U.S couple as fixed by the government is $15,600.

And the standard deduction for a U.S couple as fixed by the government is $12,200.

Thus in order to find the taxable income of the couple, use the formula

taxable income = total income- exemption deduction - standard deduction

= $75,000 - $15,600 - $12,200

= $47,200.

Thus the taxable income is $47,200.

8 0

3 years ago