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max2010maxim [7]
3 years ago
14

Can someone help me with these questions?

Mathematics
1 answer:
Anika [276]3 years ago
4 0

1) 2mn

2) (r+s)√t

3) 4y √3

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Simplify 7N - 2N + 3P + 2P. (a) 5N + 5P (b) 10N + 10P (c)10NP
Yakvenalex [24]
<span>7N - 2N + 3P + 2P

Combine like terms: 
7N-2N=5N 

3P+2P=5P 

Put them together to get :
5N+5P

Final answer: 
A</span>
7 0
3 years ago
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Four gallons of paint are used to paint 20 chairs and 5 small tables.if each chair and table used the same amount of paint, how
Vinil7 [7]

Answer:

0.16 gallons of paint are used on each piece of furniture.

The answer lies between the whole numbers 0 and 1.

Step-by-step explanation:

we know that

Four gallons of paint are used to paint 20 chairs and 5 small tables.

if each chair and table used the same amount of paint

then

sum the total pieces of furniture

20+5=25 pieces

Find the unit rate

Divide the total gallons of paint used by the total pieces

\frac{4}{25}=0.16\ \frac{gallons}{piece}

therefore

0.16 gallons of paint are used on each piece of furniture.

The answer lies between the whole numbers 0 and 1.

7 0
3 years ago
A spinner is divided into 4 equal sections colored red, green , blue and orange . Ennis spins the spinner. What is the probabili
zavuch27 [327]

Answer:

By thinking logically,here's hint: there are only 4 equal sections and 4 colors,all of them equal to=

\frac{4}{4}

no matter what color you take,for example green is 1/4,red is 1/4 as well.Eventually the answer is:the probability of orange color is 1/4 too.

7 0
3 years ago
A mold professional uses an antimicrobial chemical in an attic to combat a colony of mold. If the initial number of mold spores
kykrilka [37]

It would take about 57 hours for the number of spores to be less than 500 spores.

<h3>Exponential Function</h3>

An exponential function is in the form:

y = abˣ

Where y,x are variables, a is the initial value of y and b is the multiplication factor.

Let y is the number of pores after x hours.

a = 6200, b = 100% - 20% = 0.8, hence to be less than 500 spores:

6200(0.8)^\frac{x}{5} < 500

(x/5) * ln(0.8) < ln(0.08)

x > 56.4 hours

It would take about 57 hours for the number of spores to be less than 500 spores.

Find out more on Exponential Function at: brainly.com/question/12940982

4 0
2 years ago
Which of the following numbers belong to the set of complex numbers AND the set of imaginary numbers? Select all that apply. (3
Sidana [21]
<span> A, B, and C and also F because a negative number can't be under radical </span>
4 0
3 years ago
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