Mathematics High School

What are the two square roots for the number 81? *
(1) 27 and 3
(2) 9 and -9
(3) 40.5 and 2
(4) None of these

Answers

Answer 1

Answer:2

Step-by-step explanation:9 and -9 squared both are 81 because double negative makes a positive

Related Questions

Which situation can be represented by y = 10x?

Answers

c
hope that it’s correct.

Answer:

56 ok

Step-by-step explanation:

Can someone please help me​

Answers

Answer:

131.88cm

Step-by-step explanation:

Implement the formula for circumference of a circle:

2×pi(3.14)×r, r= 21cm and pi is given as 3.14. Substitute your given values into the formula above:

2 × 3.14 × 21= 131.88cm to the nearest hundreth

Brian bought 215 pounds of strawberries. In the afternoon his brother ate 56 of the strawberries. How many pounds of strawberries did his brother eat?

Answers

Hi there!

Step By Step:

We know that 215 pounds are about 215 strawberries since every strawberry are about 1 pound.

Let think about this... 215 pounds are 215 strawberries.

If his brother ate 56 of the strawberries, it means that his brother ate 56 pounds of the strawberry.

We can also think like this... 56/215

Final Result: 56 pound sof strawberries.

SOMEONE PLEASE HELP ME WITH THIS QUESTION!

Answers

Answer:

i dont know but i have a pic for u

Step-by-step explanation:

At most 3 because 21% of 10 people is 2.1 people so the most would be 3 according to that statistic.

What is area of figure. The height is 10m base is 25 m

Answers

Answer:

If it is a 4-sided figure: 250 m

If it is a triangle: 125 m

Step-by-step explanation:

hi!! what’s the area and formula for this problem?

Answers

Answer:

formula= [tex]A= \frac{h_{b} b}{2}[/tex] area= 360

Step-by-step explanation:

I hope these are answers for you! I really tried my best!

ABOVE & BEYOND: What is the slope of the line graphed below?​

Answers

Answer:

3

Step-by-step explanation:

Mario had $35 but then spent $m

Answers

Answer:

how much did he spend

Step-by-step explanation:

After 4new students joined a class the class had 32students which equation can be used to find n the number of students in the class before the 4new students joined

Answers

Answer:

n+4=32 is the answer

help me plz, I'll mark brainiest

Answers

Answer:

1

Step-by-step explanation:

I guess it's the first choice

ABCD is a square.



What is the measure of angle BAC?​

Answers

Answer:

30 degrees

Step-by-step explanation:

I think that every corner is a 90 degree angle so 90/2 is 30

30! hope i helped :)

Rewrite the function by completing the square.
f(x) = x^2 – 8x – 2

Answers

Answer:

[tex](x-4)^2-18[/tex]

Step-by-step explanation:

[tex](x^2-8x-2)\\= (x^2-8x+16)-18\\= (x - 4)^2 - 18[/tex]

Answer:

-4 and -8 (Khan)

What is the volume (in cubic feet) of the composite shape rounded to the nearest whole number?

Answers

Answer:

Peppa does not know

Step-by-step explanation:

Can someone do this please

Answers

Answer:

x = [tex]\sqrt{5}[/tex]

Step-by-step explanation:

[tex](\sqrt{21} )^{2}[/tex] = 4^2 + ^2

21 - 16 = x^2

x = [tex]\sqrt{5}[/tex]

Combine like terms.
y+3+2(y + 3) =
Please i need this for now

Answers

Answer:

3y+9

Step-by-step explanation:

What is the measure of the indicated angle ?

Answers

Answer: this is easy put attention to your teacher

Step-by-step explanation:

An average sized person will burn about 350 calories in an hour of walking at a fairly brisk pace. How many calories would you burn if you walk an hour a day for 6 months

Answers

Answer: 65100 Calories

Step-by-step explanation:

Let's believe that there are 31 days in a month. Therefore, the number of days in 6 months will be:

= 31 × 6

= 186 days.

This means that the person will walk for 186 hours

The number of calories that will be burn will then be:

= 186 × 350

= 65100 calories

what is the area of rhombus ABCD
8.5ft and 3.5ft​

Answers

Answer:

b

Step-by-step explanation:

edmentum

1. The average Third grade student can read 60 words in 5 minutes What is the average reading rate per minute?​

Answers

Answer:

12 words per minute

Step-by-step explanation:

60/5=12

12 i think lol it’s 60/5 which is 12

What is the slope of a line that is perpendicular to the line represented by the equation y – 5x = 5?

Answers

Answer:

5 1/5

step-by-step explanation

A store offers 30% off all items. If x is the original purchase price, select all of the expressions which represent the final price with the discount.
a 0.7x
b x
c x + 0.3x
d x - 0.3x
e 12x

Answers

Answer:

D c

Step-by-step explanation:

Answer:

D

Step-by-step explanation:

not really an explanation

What expression can be used to determine the total cost of buying "a" pounds of almonds for ​$4.45 per pound and "f" pounds of flour for ​$0.85 per​ pound?

Answers

Answer:

Step-by-step explanation:

What expression can be used to determine the total cost of buying "a" pounds of almonds for ​$4.45 per pound and "f" pounds of flour for ​$0.85 per​ pound?

Help me with this problem

Answers

the answer is 60 since the other shape has same answer for that side

Answer: x=60

Step-by-step explanation:

Hey! X would be 60 because the diagram on the left has proportions of 6/6. The diagram on the right has a porportion of x/60.  We want the proportions to be equal so it has to be 60!

6/6 = 1

60/60 = 1 (they are now equal and have equal proportions!)

WILL GIVE BRAINLIEST AND 20 POINTS!
To prevent fraying, a binding is attached to the outside of a circular rug whose radius is 3 ft. If the binding costs $1.35 per foot, find the cost of the binding. Use 3.14 for . (Round your answer to the nearest cent.)
$

Answers

Answer:

$4.71

Step-by-step explanation:

you would multiply the radius times pi (you would get 6.42 ft) and then divide that by 1.35 (simplifying it to 642 divided by 135 and you would then get 4.706...)which rounds to the answer

A teacher polled her students and determined 37 liked math and 44 liked history.
She has a total of 180 students. If there are 3000 students in the whole school. How
many students could you infer like something other than math and history.

Answers

Answer:

I’m pretty sure it’s 2919 students

Step-by-step explanation:

Ok 37-math

44-history

180 total students

99 students in the total didnt like them

3000 students in school.

-180

2919 students

Expand 3(m + 7). Just answer this

Answers

Answer:

3m+21

Step-by-step explanation:

Answer:

3m+21

Step-by-step explanation:

3(m+7)

3m+21

Hope this helps!

I don't know how to explain it but please help!

Answers

Answer:

required answer. is 1/x³

need help asap 20 points. thank u in advance

Answers

Answer:

$50 and $6

Step-by-step explanation:

(x-6)(250-5x)=0

250x - [tex]5x^{2}[/tex] - 1500 + 30x = 0

-5x^2 + 280x - 1500 = 0

(divide everything by -5)

x^2 -56x + 300 = 0

(factorise)

(x-50)(x-6)=0

x=50, x=6

SOMEONE PLEASE HELP ME!!!!!! I RLLY NEED THE ANSWER TO THIS!!!


The Pythagorean Theorem states that a² + b² = c?, where a and b are legs of a
right triangle and c is the hypotenuse. Are you able to simplify the Pythagorean
Theorem further to say that a + b = c? Explain.

Answers

Answer:

yes, you can square root to entire equation to get to a+b=c, the square root cancels out the 2

Step-by-step explanation:

Can 0.1/100 be simplified?

Answers

no 0.1/100 cannot be simplified

Answer:

Yes, the answer would be 0.001

Step-by-step explanation:

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