Mathematics High School

Hi help me please I don't know how to do it "using the formula evaluate (87)^2" ​

Hi Help Me Please I Don't Know How To Do It "using The Formula Evaluate (87)^2"

Answers

Answer 1

Answer:

7,569

Step-by-step explanation:

[tex](87)^{2} \\ = {(90 - 3)}^{2} \\ = {90}^{2} - 2 \times 90 \times 3 + {3}^{2} \\ = 8100 - 540 + 9 \\ = 8100 + 9 - 540 \\ = 8109 - 540 \\ = 7,569[/tex]

Related Questions

can someone please help me

Answers

Answer:

i think the answer would be none.

Step-by-step explanation:

I’m pretty sure the answer on none, because if you plug the numbers onto the x or even try to solve it none of those numbers work

Mary is half of her sister's age. The sum of their
ages is 18. How old is her sister?

Answers

Answer:

Mary's sister is 12 years old.

Step-by-step explanation:

If Mary is half of her sister's age, her sister is 2 times her age.

Represent M as Mary's age...

M+2m=18

3m=18

3m/3=18/3

m=6

But because Mary is a half of her sister's age...

6*2=12

Answer:

12 years

Step-by-step explanation:

12/2 = 6

12 + 6 = 18

This circle is centered at the point (2,6), and the length of its radius is 4. What is the equation of the circle?

Answers

Answer:

The equation of the circle with centre (h,k) and radius (r) can be written as :-

[tex] \\ \qquad \sf \: {(x - h)}^{2} + {(y - k)}^{2} = {r}^{2} \\ [/tex]

So, we are given with :-

h = 2 k = 6 r = 4

Now, by putting their value we can write the equation as :-

[tex] \\ \qquad\sf \: {(x - 2)}^{2} - {(y - 6)}^{2} = {4}^{2} (16) \\ [/tex]

Expanding this, we get :-

[tex] \\ \sf {x}^{2} - 4x + 4 + { y}^{2} - 12y + 36 = 16 \\ [/tex]

Rearranging and by subtracting by 16 from both sides we got standard polynomial as -

[tex] \\ \sf \: {x}^{2} + {y}^{2} - 4x - 12y + 20 = 0 \\ [/tex]

This is what I need help with.

Answers

smallest to largest goes as follows
plant D
Plant B
Plant C
Plant A

Which statement is true regarding the functions on the graph?

Answers

You got it, both the x’s interest there

GEOMETRY HELP!!
What is the coordinate of the midpoint of segment QB?

Answers

Answer:

4

Step-by-step explanation:

8-4 is 4

Which of the following expressions are equivalent to this expression: -1(0) = ?
-1[4 + (-4)]
-1[4 + (4)]
1 + [4 + (-4)]
-11-4+ (-4)]​

Answers

Answer:

a

Step-by-step explanation:

trust

Answer:

A

Step-by-step explanation:

Order the numbers from least to greatest -2.30 , -13/4, -3 1/8, -14/5​

Answers

Answer:

-13/4,-3 1/8, -14/5, -2.3

Step-by-step explanation:

-13/4=-3.25

-14/5=-2.8


4 Apoint Q with coordinates of (8. 6) is reflected across they axis. What is the new
Coordinate


Answers

Answer:

8. -6

Step-by-step explanation:

How many minutes are there in a week, if a week has 7 days, each day has 24 hours and each hour has 60 minutes?​

Answers

Answer:

10,080 minutes

Step-by-step explanation:

7 x 24 x 60 = 10,080

A scientist is going to measure the amount of rain we get today. Look at the table and pick the best answer that describes it. X (hours) 2 6 00 y (rain) 02 6 9 12 a Nonlinear b Ос Nonproportional Proportional Rational Od INTL 2​

Answers

A scientist is going to measure the amount of rain we get today. Look at the table and pick the best answer that describes it. X (hours) 2 6 00 y (rain) 02 6 9 12 a Nonlinear b Ос Nonproportional Proportional Rational Od INTL 2​

Express 0.2 underline as a fraction in simplest from.

Answers

answer: i think it is 1/5
0.2 is 1/5
20/100 = 2/10 = 1/5

Select all sets in which the number -
is an element
A. rational numbers
B. integers
C. natural numbers
D. whole numbers
E. irrational numbers
Freal numbers

Answers

wowowoowowowowowowowow

DOES ANYONE KNOW THIS?????

Answers

Answer:

if i;m right its 45 degrees

Step-by-step explanation:

Answer:

28

Step-by-step explanation:

alternative angle theorem lets you know that angle acb is equal to cae and you can find acb since you know all angles add up to 180. 180-105-47=28

a and Ly started sung money at the same time for Christmas gis erika started with $100 and added $35 a week. Uly saved $60 a week and
started with 25. How many weeks will it take for them to have the same amount of money saved for Christmas gifts?
weeks torna and Ly to have the same amount of money saved up

Answers

Answer:

Step-by-step explanation:

Erika: y = 35x + 100

Ly: y = 60x + 25

60x + 25 = 35x + 100

25x + 25 = 100

25x = 75

x= 3 weeks

Erika: y = $35(3) + 100= 105 + 100 = $205

Ly: 60(3) + 25 = 180 + 25 = $205

Find the values of x for which f(x) = g(x).
f(x) = x2 + 2x + 1,
g(x) = 5x + 19

Answers

The x value is -18, hope this helps :)

A biologist monitors the growth of molds to better understand how they spread. She begins with a culture of 50 molds in a container that can hold 1,000 cultures. Which model represents this scenario?

Answers

Answer:

D. y = StartFraction 1,000 Over 1 + 19 e Superscript negative 0.6 t Baseline EndFraction

Step-by-step explanation:

edge 2020

i need to know this problem

Answers

C jdixixizi disused is

[tex]x \geqslant 1[/tex]

which function would have a range of all real numbers

Answers

Answer:3

3

Step-by-step explanation:

Solve4(a+4) - 2 = 34

Answers

Answer:

a = 5

Step-by-step explanation:

You have to isolate the variable by dividing each side by factors that don't contain a variable.

Answer  or  i can giv u the ansur if you want it

Step-by-step explanation:

is the product of two rational numbers always a rational number?

Answers

Answer:

Yes, it's always rational.

Step-by-step explanation:

please help very confused limited time!

Answers

slope-intercept form: y = mx + b

m = the slope and b = the y-intercept.

We know that the line passes through x-coordinate 1 and y-coordinate 1 and has a slope of 2

Let's plug our numbers into the slope-intercept form

1 = 2(1) + b

Simplify the right side

1 = 2 + b

Subtract 2 from both sides

-1 = b

The final answer: y = 2x - 1

the answer is A.) y=2x-1

substitute (1,1) in for y and x
1=2(1)+b
1=2+b
-1=b

The formula for the surface area of a cylinder is 2\pi r(r+h)2πr(r+h)2, pi, r, left parenthesis, r, plus, h, right parenthesis where rrr is the radius of the cylinder's base and hhh is its height. A certain pole has a cylinder-like shape, where the base's radius is 101010 centimeters and the height is 222 meters. What calculation will give us the estimated surface area of the pole in square centimeters?

Answers

Answer:

2pi x 10 x 210

Step-by-step explanation:

The estimated surface area of the pole is 13194.68 square centimeters and this can be determined by using the given data.

Given :

The formula for the surface area of a cylinder is [tex]2\pi r(r+h)[/tex].A certain pole has a cylinder-like shape, where the base's radius is 10 centimeters and the height is 2 meters.

The following steps can be used in order to determine the surface area of the pole in square centimeters:

Step 1 - According to the given data, the surface area of a cylinder is [tex]2\pi r(r+h)[/tex].

Step 2 - Now, substitute the values of 'r' and 'h' in the expression of the area of the cylinder.

[tex]A = 2\pi\times 10\times (10+200)[/tex]

Step 3 - Simplify the above expression.

[tex]A = 2\pi\times 10\times (210)[/tex]

[tex]A = 13194.68\; {\rm cm^2}[/tex]

So, the estimated surface area of the pole is 13194.68 square centimeters.

For more information, refer to the link given below:

https://brainly.com/question/2264643

A number y plus 7 is at least 16

Answers

Answer:

yes

Step-by-step explanation:

you are correct

Answer/Step-by-step explanation:

[tex]16-7=9[/tex]

Therefore [tex]y\geq9[/tex]

There was no picture to go off of, but this should be correct anyways!

Please mark Brainliest!!! =D

What is the sum of the following? 16x+4x+9y=?

Answers

Answer: The answer would be 20x+9y

Step-by-step explanation: I need a brainliest please!!!

What is
Two million, one hundred fifty-six thousand, four

Answers

Answer:2,156,004

Step-by-step explanation:

Answer: 2,156,000.00

Step-by-step explanation:

Round 4,368 to the nearest ten.

Answers

Answer:

4370

Step-by-step explanation:

Answer:

4,370.0

Step-by-step explanation:

Please help please help

Answers

1. 9/44
2. 1/3
3. 1/14
4. 4/45
5. 7/12
6. 14/55
7. 5/12
8. 2/9
9. 1/16
10. 7/6
11. 5/12
12. 4/5
13. 6/7
14. 7/12
15. 1
16. 3/2
17. 15/8
18. 4/7

If you answer will make brainliest,


store sells bags of gold fish for $3.00, bags of animal crackers for $3.50, and bags of gummies for $4.00. One day, 15 bags of snacks were sold at $53 was earned for the sales. Two more bags of animal crackers were sold than goldfish. How many bags of each type of snack were sold?

Answers

Answer:

Gummies 5

6 animal crackers

4 gold fish

Step-by-step explanation:

Equation: 2n +n/2=10

Answers

Answer:

5

Step-by-step explanation:

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