Mathematics College

What are the solutions to (x+7)2 = 81?


A. -74 and 88

B. -2 and 16

C. -88 and 74

D. -16 and 2

What Are The Solutions To (x+7)2 = 81?A. -74 And 88B. -2 And 16C. -88 And 74D. -16 And 2

Answers

Answer 1

Answer:

D

Step-by-step explanation:

x+7 =√81: x=s

x+7=-√81: x=-16

Related Questions

The skull protects the ________
a. spinal cord
b. mandible
c. vertebra
d. brain

Answers

Brain!

Hope this helps!!;)
D because skull, skeletal frame work of the head of vertebrates , composed of bones or cartilage, which form a unit that protects the and some sense organs .

One number added to twice another number is 30. The sum of the numbers is 19.
Write and solve a system of equations to represent this situation.
What is the value of the smaller number?
What is the value of the larger number?

I don't understand :(

Answers

Answer:

The smaller number is 8

The bigger number is 11

Step-by-step explanation:

let the first number be A

let the second number be B

A + 2B = 30..... equation 1

A + B = 19...... equation 2

Subtract equation 2 from 1.

A + 2B = 30

- A + B = 19

-------------------

0 + B = 11

B = 11

Substitute B = 11 into equation 2

A + B = 19

A + 11 = 19

collect like terms

A = 19-11

A = 8.

A= 8 and B = 11

2/5 meters into centimeters

Answers

205 cm is the answe

Need help pls ASAP 6th grade math

Answers

Answer:

don't know

Step-by-step explanation:

umm

The letters in the word STATISTICS are printed on identical index cards with one letter per card. The ten cards are
then placed in a hat, and one card is randomly chosen (without looking) from the hat. The random process we are
interested in is what letter is on the selected card.
(a) Make a table that shows the set of outcomes and the probability of each outcome.
Outcome
Probability
(b) Consider the following events:
V: the letter chosen is a vowel.
F: the letter chosen falls in the first half of the alphabet (that is, between A and M).
Determine the following probabilities:
P(V) =
P(F) =
P(FC
) =
P(V and F) =
P(V or F) =
(c) Are the events V and F mutually exclusive (disjoint)? Explain.

Answers

Answer:

I think the answer is c I guess

Do integers contain the whole numbers

Answers

integers do not contain whole numbers
All whole numbers are integers, but not all integers are whole numbers

PLEASE HELP ASAP IM PANICKING :(((
d. Which of the following statements are true?


The opposite of the opposite of the integer in part (a) is the integer.

The opposite of the opposite of a negative integer is a positive integer.

The opposite of the opposite of zero is undefined.

The opposite of the opposite of any integer is the integer.

Answers

Answer:

A

Step-by-step explanation:

Answer:

it is C

Step-by-step explanation:

Cary and his brother took a road trip together. The total number of miles they drove was more than 200. Cary drove for 50 miles. Which distances could his brother have driven? Check all that apply.
50 miles
100 miles
150 miles
200 miles
250 miles

Answers

Answer:

D and E

Step-by-step explanation:

Got it right hope this helps

Answer:

200 miles or 250 miles.

Step-by-step explanation:

They both have 200+ miles. 200+50=250 miles. 250+50=300 miles. Hippity hoppity gimme that brainliest pls

there are 200 students in a school the ratio of girls to boys is 2:3 how many boys are there.​

Answers

Answer:

120

Step-by-step explanation:

200 ÷ 5 = 40

40 × 3 = 120

there r 120 boys

Answer:

120

Step-by-step explanation:

200 ÷ 5 = 40

40 × 3 = 120

x multiplied by 7 then 18
subtronted form the product ​

Answers

Answer:

7x - 18

Step-by-step explanation:

x multiplied by seven = 7x

eighteen subtracted from product (7x) = -18

7x - 18

Answer:

7x-18

Step-by-step explanation:

the ans is 7x-18 because x is multiplied to 7 so its 7x

someone please help!!!

Answers

Answer:

y = 3x + 5 option A

Step-by-step explanation:

For 2 lines that are parallel with slopes m1 and m2, the slopes are equal. Hence

m1 = m2

Given the line y = 3x - 5 Comparing with the general equation of a line

y = mx + c where m is the slope of the line

m = 3

hence m1 = m2 = m = 3

For the line that passes through the given point (2,11) Using

y - y1 = m (x - x1)

y - 11 = 3(x - 2)

y - 11 = 3x - 6

Add 11 to both sides

y = 3x - 6 + 11

y = 3x + 5

Abby's cat weighs 18 pounds. Her dog weighs 2 pounds more than half her cat's weight.write and evaluate an expression to show how much Abbey's dog weighs

Answers

Answer:

11 pounds

Step-by-step explanation:

Just divide the cats weight by 2 and then add 2

(18)/2 + 2

in a recent year, the number of homes with tablets grew 43 3/4% from the previous year. What decimal is equivalent to 43 3/4?

Answers

Answer:

43.75

Step-by-step explanation:

Hello, I need help graphing with y = x+4,

Answers

......................
Hopefully that helps!!

Which of the following is true of a radius of a circle?
(1) Radius is twice the diameter in any circle
(2) Radius is the distance from the center to any point on the circle.
(3) All radii in circles have the same value.

Answers

The second one is correct (Radius is the distance from the center to any point on the circle)

Answer:

2.)

Step-by-step explanation:

The radius of any circle is the distance from the EXACT center, to any point of the circle.

A set of data is normally distributed with a mean of 64 and a standard deviation of 2.5. What percent of the data is in the
interval 64-66.5?

Answers

Answer:

34%

Step-by-step explanation:

Just took the quiz on edge 2022

I NEED HELP!!! Pleaseeee

Answers

Answer: hope this helps!!

Step-by-step explanation:

The distance between the two points is____

Answers

Answer:

7 units

Step-by-step explanation:

Help please!!!!!!!!!!

Answers

Answer:

25

Step-by-step explanation:

because 25 times 2 is 50 and 25 times 3 is 75

hope I helped!!! ;)

4(x + 3) + 2x = 6(x + 2)

Answers

Answer:

answer is 0

Step-by-step explanation:

Two numbers have a sum of 527 and a difference of 195. What is the smaller of the two numbers?

Answers

Answer:

166

Step-by-step explanation:

let two numbers be x and y

according to question,

x+y=527..........equation 1

x-y=195...........equation 2

add both the equations you will get

x=361 and y= 166

So the smaller of two numbers is y=166

It is 166 now say hi to me

Solve for x

3(x+2)+4(x-5)=10

Answers

Answer:

x=24/7

Step-by-step explanation:

3(x+2)+4(x-5)=10

3x+6+4(x-5)=10

3x+6+4x-20=10

7x+6-20=10

7x-14=20

7x=24

x=24/7

What is the LCM and GCF of 10 and 21

Answers

Answer:

210, 1

Step-by-step explanation:

LCM =210.

HCF or GCF =1

Are events A and C mutually exclusive

Answers

Answer:

They are mutually exclusive.

Step-by-step explanation:

A and B are mutually exclusive events if they cannot occur at the same time. This means that A and B do not share any outcomes and P(A AND B). Therefore, A and C are mutually exclusive

x P(x) 0 0.25 1 0.3 2 0.1 3 0.35 Find the standard deviation of this probability distribution. Give your answer to at least 2 decimal places

Answers

Answer:

The standard deviation of this probability distribution is 1.2.

Step-by-step explanation:

We have that:

P(X = 0) = 0.25

P(X = 1) = 0.3

P(X = 2) = 0.1

P(X = 3) = 0.35

Mean:

Each value multiplied by its probability. So

[tex]M = 0*0.25 + 1*0.3 + 2*0.1 + 3*0.35 = 1.55[/tex]

Variance:

Sum of the squares of the values subtracted from the mean, and multiplied by its probability.

[tex]V = 0.25*(0-1.55)^2 + 0.3*(1-1.55)^2 + 0.1*(2-1.55)^2 + 0.35*(3-1.55)^2 = 1.4475[/tex]

Standard deviation:

Square root of the variance. So

[tex]S = \sqrt{V} = \sqrt{1.4475} = 1.2[/tex]

The standard deviation of this probability distribution is 1.2.


3x ^ 2 = 1 / 3 x + 1 ​

Answers

Answer:

What are you to find?

Step-by-step explanation:

Please state in your question and I will help you solve it. Thanks for your cooperation.

Mo reads 3 pages in 2 hours. What is the constant of proportionality?​

Answers

Its 3/2.

Hope this helps.

The answer is 3/2



Step by step explanation:
No reads 3 pages in 2 hours
3 is pages 2 is hours
3 over 2

9 1/3 x 2 x 3 1/2 mixed fraction

Answers

Answer:

65 1/3 or 196/3

Step-by-step explanation:

Consider an exchange economy with two people, A and B, and two commodities, food (x) and water (y). A's and B's preferences are described, respectively, by the following utility functions:

ua(Xa,Ya)= X^2aYa, MRSa(Xa,Ya)=2Ya/Xa
ub(Xb,Yb)=XbY^2b, MRSb(Xb,Yb)=Yb/2Xb

Suppose there are 6 units of x and 6 units of y overall.

1. Draw an Edgeworth box for this economy.
2. Determine whether each of the following allocations is (i) feasible, (ii) Pareto efficient

a. ( (2,4), (4,2) )
b. ( (4,2), (2,4) )
c. ( ( 8 / 3 , 1 ), ( 10/3 , 5 ) )

Answers

the answer is c irieirjrfnfnfjff

which formula should be used to find the area of the composite shape? A = 4(1/2Xbh) lw B. A=4bh+lw C. a=4bh+lw d. 2bh+bh The composite shape is a four pointed star.

Answers

Answer:

D. 2bh+bh

Step-by-step explanation:

You can divide that shape into five separate pieces, 4 triangles and 1 square.

The formula for the area of a triangle is A=1/2bh.

Multiply this by 4 becuase there are 4 triangles and you get A=2bh.

Then you add on the area of the square and you have A=2bh+bh

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