What is the sum of all two-digit whole numbers
whose squares (think exponents!) end with the
digits 21?
What is the sum of the two digit numbers?

Answers

Answer 1

Answer:

11x11

Step-by-step explanation:

11 x 11 =121

Answer 2
11 x 11 = 121…………………..

Related Questions

Which circle represents 30% in blue?

Answers

Answer:

The second image. First image is 35%, second is 30%, third is 25% and last one is 50%

i think it’s the last one

Can someone tell me where to plot the points? (due tomorrow) thanks!​
Also can you explain to me if this is proportional or not? I need a clear reason. Thanks so much!

Answers

Step-by-step explanation:

ok do you see where x is on the graph

you would put 0 3 times up and y would be where

5 is on the graph you would put 3.5 times up

HOPE IT HELPS

Here are the answers
0,2
2,5
3,5.5
1,3.5

Could someone help me answer all four questions? I really need it

Answers

Use a graphing calculator

could u add more detail plss if it doesn't bother u
but I think the answers are ok sojts divide each number . thne do the answers on the paper hope that helps

Help
Evaluate.

(2a−7)÷b when a=8 and b=3

Enter your answer in the box.

Answers

Answer:

3

Step-by-step explanation:

So you have to take the equation, (2a - 7) ÷ b, and you must plug in the numbers for the variables.

(2a - 7) ÷ b

(2(8) - 7) ÷ 3

(16 - 7) ÷ 3

(9) ÷ 3

= 3

Hope this helps!!! :)

Help
Evaluate.

(2a−7)÷b = 3

5 Michael has $16.25 in the bank. He needs $108 to buy a video game. He finds he can
save $1.75 a week from his allowance. How many weeks must he save in order to have
enough to buy the game?

Answers

Answer:

53 weeks (rounded)

Step-by-step explanation:

First, subtract 16.25 from 108 (108 - 16.25), resulting in 91.75

Next, you divide. 91.75/1.75

You would get 52.42... but you would have to add a week to actually get the game.

53 weeks I think but I rounded it

Angie bikes for 20 minutes burning 150 calories. How many minutes will it take to burn 525 calories?

Answers

Answer:

70 minutes OR 1 hour and 10 minutes (it's the same thing)

Step-by-step explanation:

So this can be modeled by the equation 20/150=x/525

so solving for x, you have to say whats the most times that 150 will go into 525 without going over

the answer is 3

so 150x3=450 and 525-450=75

75 is one half of 150 so it would be 3.5

multiply 20 by 3.5 and you get 70 or 1 hour and 10 minutes since an hour is 60 minutes

Don't forget to give brainliest :)

70 min

Work:

20/150=7.5 Move the decimal

75x7=525

What is the measure of the exterior angle?

Answers

Check the picture below.

44, it’s a 30 60 90 triangle so 3x=30 and 5 x 10= 50 then 50-6

GUYS HELP I HAVE A UNIT TEST ON RATIOS AND PROPORTIONS TOMORROW AND WE ARE ALLOW ONE NOTECARD WHAT SHOULD I WRITE DOWN I OFFER 75 POINTS AND BRAINLIEST

Answers

Answer:

look down

Step-by-step explanation:

well u should know that.....

1. A ratio is an ordered pair of numbers a and b, written a / b where b does not equal 0. A proportion is an equation in which two ratios are set equal to each other

2. A unit rate describes how many units of the first type of quantity corresponds to one unit of the second type of quantity. A proportion is an equation that states that two ratios or rates are equivalent.

3. As defined in the lesson on Unit Rate and Proportionality, the unit rate is the rate of change in a relationship where the rate is per 1.

4. A proportion is an equation in which two ratios are set equal to each other. For example, if there is 1 boy and 3 girls you could write the ratio as: 1 : 3 (for every one boy there are 3 girls)

I’m a teacher and what the first person says is spot on and definitely write it down

PLSSS HELP
choices for 1
- g(x) = -x-4
- g(x) = x-5
- g(x) = -x-5
- g(x) = -x-4

choices for 2
- h(x) = -0.5x + 2
- h(x) = -0.5x + 3
- h(x) = -2x + 3
- h(x) = -2x + 2

Answers

For number 1, the answer should be -g(x) = -x - 4

Number 2 should be h(x) = -0.5x + 3

I suggest using desmos graphing calculator for future help. Hope this helps

1: -g (x) = - x - 4

2: -h (x) = - 0.5 x + 3

the length and width of a rectangle are in the ratio 3:1.
a) the length of the rectangle is 2.1m.What is the width?
please help I'm sick and the math ain't mathing today

Answers

Answer:

Step-by-step explanation:

How do u find a equation passing through the line in a graph, I will give an example (-2,0) and (0, 5), I don’t understand how to calculate it can u please give me a easy way to do it for me , I’m in the 8th grade

Answers

Answer:

y = 5/2x + 5

Step-by-step explanation:

To find the equation, you first need to find the slope. You can do this by subtracting the two y coordinates (the two last numbers) and using that as the numerator (the top number of the fraction), and then subtracting the two x coordinates (the two first numbers) and using that as the denominator (the bottom number of the fraction). You then have the fraction -5/-2, which can be changed to 5/2 because they are both negative numbers. That is your slope. You then need to find the y-intercept (where the line connects with the y-axis). To do this, you need to figure out what the y (the second number) is when the x (the first number) is 0. In this example, you can already see with the second set of coordinates that the y-intercept is 5 because the x is 0. When this is not easily shown, you can figure out the y-intercept with a table. Sorry if I made it sound too complicated :)

Y=5/2x+5

(Totally didn’t steal the other persons answer). ;)

Consider the equation 5+x=n
5
+
x
=
n
. What must be true about any value of x
x
if n
n
is a negative number? Explain your answer. Include an example with numbers to support your explanation.

Answers

Answer:

x < - 5

Step-by-step explanation:

Given equation:

5 + x = n

If n is negative then we get:

n < 0 or5 + x < 0x < - 5

If n is negative then x is less than - 5.

Example:

x = - 6 ⇒ 5 + (-6) = 5 - 6 = - 1  ⇒ -1 < 0

Answer:

x < -5

Step-by-step explanation:

Now the value of x is,

→ 5 + x = n

→ x = n - 5

The value of n when negative,

→ n < 0 ---- {n = 0}

When n is a negative number,

→ x < 0 - 5

→ [ x < -5 ]

Hence, the answer is x < -5.

A lifeguard earns $7.50 per hour.

Represent the lifeguard's rate of income by completing the table.
Choose the correct answer for each box. Not all answers will be used.

Answers

For the one to the right of 2 hours it is 3 below 2 is 15.00 dollars below five is 37.50 and above 60 is 8 hours

Enrollment in a business seminar increased from 78 people to 90 people. What was the percent of the increase? Round to the nearest tenth of a percent.

Answers

15.4% (15.3846% to be exact)

A gas company charges a $16 monthly service fee and $0.6924 per hundred cubic feet of natural gas used during a month. Which equation best represents Y, the gas company’s monthly charged in dollars for using X hundred cubic feet natural gas?

A. Y = 0.6924x - 16
B. Y = 16x + 0.6924
C. Y = 16x - 0.6924
D. Y = 0.6924 + 16

Answers

Numbers of phones for a gas company charges a 16 month a service

The correct equation that represents Y, the gas company’s monthly charge in dollars for using X hundred cubic feet of natural gas is:

Y = 0.6924X + 16

What is an equation?

An equation contains one or more terms with variables connected by an equal sign.

Example:

2x + 4y = 9 is an equation.

2x = 8 is an equation.

We have,

The correct equation that represents Y, the gas company’s monthly charge in dollars for using X hundred cubic feet of natural gas is:

Y = 0.6924X + 16

Now,

Option A has the correct variable coefficients, but the constant term is negative, which is not correct as a monthly service fee is always positive.

Option B has the correct constant term but the variable coefficient is positive, which doesn't make sense as the company charges per hundred cubic feet of natural gas used.

Option C has a similar problem as option A.

Option D has incorrect variable and constant terms.

Therefore,

The correct equation is Y = 0.6924X + 16.

Learn more about equations here:

https://brainly.com/question/17194269


#SPJ2

After buying​ dinner, Julia had 34​$ left over. She spent 3​$ on cranberry​ sauce, 12​$ on​ stuffing, and ​31$ on the turkey. How much​ money, m, did Julia start​ with?

Answers

M=34+12+3+31
So she started with 80$
$34 + $3 + $12 + $31 =$80
so she started with $80

Pearl's father was 28 when Pearl was 6 years old. Pearl's father is now twice as old as Pearl. How old is Pearl?

Answers

Answer:

22

Step-by-step explanation:

the age difference between 28-6 is 22 years

And the only time you are double the age of something the younger one is the age of the age difference so Pearl is 22 and her father is 44

Hopes this helps please mark brainliest

Answer: Pearl is 22

Step-by-step explanation:

The first number is Pearl's age and the second is her father's. 6 and 28, 7 and 29, 8 and 30, 9 and 31, 10 and 32, 11 and 33, 12 and 34, 13 and 35, 14 and 36, 15 and 37, 16 and 38, 17 and 39, 18 and 40, 19 and 41, 20 and 42, 21 and 43, 22 and 44. 22×2=44 Hope this helps.

pls try to do it fast

Answers

Answer:

4 1/3 is the same as 11 decreased by a number

Step-by-step explanation:

is the same as means =

decreased by means -

a number means x

so 4 1/3=11-x

Answer: 4 1/3 is the same as 11 decreased by a number

Step-by-step explanation:

Go down the line. 4 1/3 match up in the sentence and the equation. Is the same as is another way of saying equal to, so that works. Then, there are both 11s so that checks. Finally, decreased is the same as minus or subtract, and x is a number.

how to divide 3 ÷ 0.4 =

Answers

Answer:

7.5

Step-by-step explanation:

I think the answer is 7.5 I haven’t done this math in a while but I think that answer makes sense

Brainliest to the correct answer! >.>

The temperature of a solution increases by 1.2∘F each minute for 3 minutes. The solution is then placed in an ice bath, and its temperature decreases by 12∘F over the next minute. What is the current temperature?

Enter your answer as a decimal in the box.

Answers

Answer:

-8.4

Step-by-step explanation:

multiply 1.2 x 3 then subtract the answer by 12


-8.4
you can multiply 1.2 by 3 then subtract the answer by 12

Look at the number line below. A vertical number line labeled from bottom to top from negative 2 to positive 1 with tick marks every 1-sixth unit. There are 4 points marked. The point 1 tick below negative 1 is labeled D. The point 1 tick below 0 is labeled C. The point 1 tick above 0 is labeled B. The point 1 tick below 1 is labeled A. A vertical number line labeled from bottom to top from negative 2 to positive 1 with tick marks every 1-sixth unit. There are 4 points marked. The point 1 tick below negative 1 is labeled D. The point 1 tick below 0 is labeled C. The point 1 tick above 0 is labeled B. The point 1 tick below 1 is labeled A. Which point is located at -\dfrac{1}{6}− 6 1 ​ minus, start fraction, 1, divided by, 6, end fraction?

Answers

Yes the math here is very long

Answer: 0.6666

Step-by-step explanation: its hard to explain but yk try to figure it out.

What are the domain and range of the function f of x is equal to the quantity x squared plus 6x plus 8 end quantity divided by the quantity x plus 4 end quantity?

Answers

Answer:

The domain is all values of

x

that make the expression defined.

Interval Notation:

[

0

,

)

Set-Builder Notation:

{

x

|

x

0

}

The range is the set of all valid

y

values. Use the graph to find the range.

Interval Notation:

[

0

,

)

Set-Builder Notation:

{

y

|

y

0

}

Determine the domain and range.

Domain:

[

0

,

)

,

{

x

|

x

0

}

Range:

[

0

,

)

,

{

y

|

y

0

}

The answer to this would be all values of x

Jake claims that, when two numbers are multiplied together, the product could be less than both factors.

Which of these equations and statements could he use to support his claim?

Answers

Answer:

The first one.

The first one because it supports the question

Marissa baked 371 desserts in 9 1/3 months. Find marissa’s desserts making rate in desserts per month

Answers

Answer:

39 3/4

Step-by-step explanation:

371 divided by 9 1/3 is 39.75 so converted to a fraction its 39 3/4

39 3/4
Hope this helps

PLEASE HELP ME

Evaluate.

a−2b when a=−2 and b=4

Enter your answer in the box.

Answers

-2-2*4=
-2-8=-10,,, replace the numbers with the letters, perform the operations. Multiplication before subtraction or addition
The answer is 6

Start with -2-2(4)

Multiplication first, so 2(4) is 8
Now you have -2-8

-2-8 is -10

Data set 1: Has a mean of 84 and a MAD of 6. Data set 2 Has a mean of 78 and a MAD of 8 I need to find out what the means to Mean Absolute Deviation (MAD) ratio is.

My teacher keeps telling me that it is 0.75, but I can't seem to get the right formula to it to answer right. can anyone help?

Answers

Answer:

0.75 or 6/8

Step-by-step explanation:

This is probably a late answer but I thought I would go ahead and respond.

When you have two data sets with the same variance, the ratio of the means to MAD is a way to test for the pooled variance of the two data sets

Given Data Set 1 with mean M1 and mean absolute deviation with MAD1 and another data set 2 with mean M2 and MAD2 the means to MAD ratio is given by the ratio of the absolute difference in means to the largest of the MADs

Here M1 = 84 and M2 = 78 so the absolute difference is |84-78| = 6

The larger MAD is MAD2 = 8

So the ratio is 6/8 = 3/4 = 0.75

estimate 42.8 + 31.2

Answers

You can round 42.8 to 43 and 31 to 31 so 43+31 is 74 as a estimated answer
74 you can round the last numbers or just add it all together:)

The ratio of the interior angles of a triangle is 4 : 6 : 8. What are the angle measures? Write the angle measures from least to greatest.
PLLEASEEE HELP ASAPPP

Answers

Answer:

let the interior angle of a triangle be 4x,6x and 8x

According to the question,

The interior angles of the triangle=180

4x+6x+8x=180

or, 18x=180

or,x=180÷18

therefore ans x=10

1st angle=4x( putting the value of x)

=4×10 = 40

2nd angle= 6x =6×10 =60

3rd angle= 8x =8×10 =80

Of you doubt the ans= ( Check out)

Adding all the angles give 180

Adding all the angles give 180 I hope this helps

Shawn invites some friends over for pizza and a movie. He makes a small cheese pizza for himself and a large pepperoni pizza for his friends. Shawn uses 0.75 pounds of dough for the cheese pizza and twice as much dough for the pepperoni pizza. How much dough does Shawn use in all?

Answers

The amount of dough used for the pepperoni will be twice that of the cheese or 2 times the amount of dough.

Answer:

The amount of dough used for the pepperoni will be twice that of the cheese or 2 times the amount of dough.

Step-by-step explanation:

If you received $3.33 on $61.66 invested at a rate of 0.9%, for how long did you invest the principal?

Answers

Step-by-step explanation:

compounded or not..? then you have to use the Financial maths formula

We invested about 0.54
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