Simplify. √25a^2.
40 points but reported if troll.

Answers

Answer 1

Answer: I think that the answer is 5a.
The square root of 25 is 5 and the square root of a^2 is a.
Hope this helps and if possible could I please have the brainliest answer?

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A battery manufacturer makes batteries that have a failure rate of .015. That is, 15 out of each 1,000 batteries are defective. What is the probabilitythat a batch of 10,000 batteries will contain at least 175 defective batteries?
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What is 6^2 in expanded form. A.12 b.2x2x2x2x2x2 c.36 d.6x6

I need an answer fast

Answers

Answer:

y=5x/6-10/6

y=5x/6-5/3 ( simplified)

Step-by-step explanation:

5x-6y=10

slope intercept form :

-6y=-5x+10

y=-5x/-6 +10/-6

y=5x/6-10/6

y=5x/6-5/3

Answer quick for brainliest <3

Answers

Answer:

Step-by-step explanation:

A line has to be able to be straightly drawn though the points in order to be proportional

PLEASE HELP Solve |4x - 7| = 13.

Answers

the absolut value signs mean that whatever is inside of them, you make it positive. so 4x-7 could equal 13 or -13 or both

so 4x-7=13
add 7 to both sides
4x=20
divide both sides by 4
x=5
this is one solution

4x-7=-13
add 7 to both sides
4x=-6
divide both sides by 4
x=-1.5

x=5 or -1.5

$|4x - 7| = 13\n4x-7=13 \vee 4x-7=-13\n4x=20 \vee 4x=-6\nx=5 \vee x=-(6)/(4)=-(3)/(2)$

5. A school has 800 students. 40% of the students are girls. Find the number of boys [Think : 60% are boys]

Answers

Final answer:

A school has 800 students. 40% of the students are girls, the number of boys is 480.

Explanation:

To find the number of boys in the school, we can use the fact that 100% of the students minus the percentage of girls will give us the percentage of boys. In this case, if 40% of the students are girls, then 100% - 40% = 60% of the students are boys.

Now, we can calculate the number of boys:

Step 1: Calculate 60% of the total number of students (800).

60% of 800 = (60/100) * 800 = 0.6 * 800 = 480

So, 480 students are boys.

Therefore, in a school with 800 students, where 40% are girls, there are 480 boys.

Learn more about Percentage here:

brainly.com/question/35907382

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Answer:

A school has 800 students. 40% of the students are girls.

number girls : (800*40)/100=320

Find the number of boys

800-320=480

we ask for the number of boys not the %

or as you wrote 60% boys = (800*60)/100 =480

Step-by-step explanation:

You want to produce a scale drawing of your living room, which is 21 ft by 28 ft. If you use a scale of 5 in. = 7 ft, what will be the dimensions of your scale drawing?

Answers

Answer:

15 in. by 20 in.

Step-by-step explanation:

Dimensions of living room :

Length = 21 feet

Width = 28 feet

Scale : 5 in. = 7 ft

So, 1 ft. = $(5)/(7)$ in.

So, 21 feet = $21 * (5)/(7)$ in.

21 feet = 15 inches

Now 28 feet = $28 * (5)/(7)$ in.

28 feet = 20 inches

So, the dimensions of the scale drawing = 15 in. by 20 in.

Hence the dimensions of the scale drawing is 15 in. by 20 in.

5 in --------- 7 ft
x in --------- 21 ft

x = (5 x 21)/7=15 in

Otherwise:

5 in ---------- 7 ft
x in ---------- 28 ft

x = (5 x 28)/7 = 20 in

Dimentions of drawing is 15 x 20 in

If a project will take 35 employees 2,940 hours to complete, how many hours will each employee have to work?