Mathematics High School

Which expression is equivalent to 63 + 27?
A. (9 x 7)(9 x 3)
B. 9(7 + 3)
C. (9 + 7)(9 + 3)
D. 9 + (7 X 3)

Answers

Answer 1

Answer:

A. (9x7)

Step-by-step explanation:

A. ( 9 x 7 ) = 63 and ( 9 x 3 ) = 27 (correct answer)

B. ( 7 + 3 ) = 10 and then 10 x 9 = 90 (incorrect answer)

C. ( 9 + 7 ) = 16 and ( 9 + 3 ) = 12 (incorrect answer)

D. ( 7 x 3 ) = 21 and then 9 + 21 = 24 (incorrect answer)

I hope this helps :)

Answer 2

Answer: (9x7)

Step-by-step explanation:

Related Questions

Find the missing side of this right
triangle.
5
Х
3
x = [?]
Enter the number that belongs in the green box.

Answers

By using a^2 + b^2 = c^2 we plug that in and get 9+x^2= 25
25-9 is 16
The square root of 16 is 4
Answer is 4
To check, plug it back in you get
9+16=25

Answer:

x= 4

Step-by-step explanation:

Suppose demand d for a company's product at cost x is predicted by the

function d(x)=0.36x + 810, and that the price p that the company can charge

for the product is given by p(x) = x+14. Find the company's revenue function.

Answers

Answer:

0.36x ² + 815.04x + 11,340

Step-by-step explanation:

Revenue = price × quantity

p(x) = x+14

d(x) = 0.36x + 810

Revenue = price × quantity

= (x + 14) * (0.36x + 810)

= 0.36x² + 810x + 5.04x + 11,340

= 0.36x ² + 815.04x + 11,340

Company's revenue = 0.36x ² + 815.04x + 11,340

John invests $6750 in an account that pays 6.25% interest per year. After how many years will her
investment be worth $20,000? Show your work.
A = Pert

Answers

Answer:

32 years

Step-by-step explanation:

fist find how much of 6750 is 6.25%

6750 * .0625 = 421.875

then use trial and error until u get the number u want

421.875 * 10 = 4218.75 + 6750 = 1096875 NO

421.875 * 20 = 84375 + 6750 = 151875 NO

421.875 * 30 = 12656.25 + 6750 = 19406.25 NO

421.875 * 31 = 13078.125 + 6750 = 19828.125 NO

421.875 * 32 = 13500 + 6750 = 20250 YES

Please help me with this math problem tomorrow is the deadline of this

Answers

Answer:for #21(d)#22(b)  

sorry cant give u the rest

Step-by-step explanation:

Write the expression without the fraction bar.

Answers

should be y-5 because you’re diving the separate bases with exponents so you have to subtract the actual exponent values

range of f(x)=3x^2-30x-9

Answers

Answer:

y ≥ -84

Step-by-step explanation:

-84 id the vertex so it is the lowest possible value for the range

simplify expression


A.

Answers

-23/56 you said simplify

f(x) = 9x2 - 4

Find the zeros of the function

Answers

Answer:

I believe that the answer is 14.

Step-by-step explanation:

hope it helped

What is the image of (-4,-4) after a dilation by a scale factor of 3 centered at the origin?


I WILL GIVE BRAINLIEST PLEASE ANSWER!!!!!!!!

Answers

I know the answer but let me just make sure it it correct

Alex has 3 pens in his pencil case. This is 25% of the number of pens that he has
How many pens does Alex have altogether?​

Answers

Answer:

12 pens

Step-by-step explanation:

25% basically means 25/100 which is simplified to 1/4. Now if 3 pens are 1/4 of all the pens, then you multiply 3 by 4 to give you 12 pens in all.

Answer:

Alex has 12 pens altogether !

Step-by-step explanation:

- 25% = 25/100

- 25% × 4 = 100%

- 3 × 4 = 12

What is the vertex of 7x^2 + 14 + 9

Answers

Answer:

(0, 23)

Step-by-step explanation:

2x + 3 = -x + 12

Solve the equation, explanation is good.

Answers

Answer:

3

Step-by-step explanation:

2x + 3 = -x + 12

subtract 3 from both sides

2x = - x + 9

add x to both sides

3x = 9

divide by 3

x = 3

Jenna has a garden with coordinate A(2,-1), B(4,3), C(9,3), D(7,-1) where each unit is 1 foot.


What are the dimensions of the garden rounded to the nearest 10th? (Looking for the lengths of the sides)

Answer choices: 9.5 ft, 6 ft, 4.5 ft, 5 ft, 4ft. (You can pick multiple.)


If Jenna decides to buy fencing for the garden, how much fence material does she need to buy? (Free response)


What is the most precise name for the shape of the garden? Answers: Quadrilateral, Rectangle, Square, Parallelogram (Can only pick one)

Answers

Answer:

a) The dimensions of the garden are: 4.5 ft and 5 ft

b) 22.5 ft² of fencing material

c) The most precise name for the shape of the garden is a Rectangle

Step-by-step explanation:

a) Jenna has a garden with coordinate A(2,-1), B(4,3), C(9,3), D(7,-1) where each unit is 1 foot.

What are the dimensions of the garden rounded to the nearest 10th? (Looking for the lengths of the sides)

When we are given coordinates, we find the dimensions using the formula

= √(x2 - x1)² - (y2 - y1)²

(x1 , y1) and (x2 - y2)

For side AB

A(2,-1), B(4,3)

= √(4 - 2)² + (3 - (-1))²

= √2² + 4²

= √4 + 16

= √20 units = √20 feet

= 4.472135955 feet

Approximately = 4.5 feet

For side BC

B(4,3), C(9,3)

= √(9 - 4)² + (3 - 3)²

= √5² + 0²

= √25

= 5 units = 5 feet

For side CD

C(9,3), D(7,-1)

= √(7 - 9)² + (-1 - 3)²

= √(-2)² + -4²

= √4 + 16

= √20 units = √20 feet

= 4.472135955 feet

Approximately = 4.5 feet

For side AD

A(2,-1), D(7,-1)

= √(7 - 2)² + (-1 - (-1))²

= √5² + (-1 + 1)²

= √5² + 0²

= √25

= 5 units = 5 feet

Therefore, the dimensions of the garden are: 4.5ft and 5 ft

b) If Jenna decides to buy fencing for the garden, how much fence material does she need to buy? (Free response)

To buy fencing material for the garden, we have to find the area of the garden

Formula = Length × Width

= 4.5 ft × 5 ft

= 22.5 ft²

Therefore, Jenna needs to buy 22.5 square feet of fencing material.

c) What is the most precise name for the shape of the garden?

From the above calculation, we can see that

Side AB = Side CD = 4.5 ft

Side BC = Side AD = 5 ft

Therefore, the most precise name for the shape of the garden is a Rectangle

ANSWER PLSSSSSSSSS!!!!!!!!!!!!!!!!! 8TH GRADE MATH!!!!!!!!!

Answers

Answer:

Numbers that cannot be expressed as a ratio of two numbers are termed as an irrational number.

Step-by-step explanation:

witch one is the function ​

Answers

Answer:

B

Step-by-step explanation:

a function doesn't have any repeating x values

the answer is B. it’s a function cause there’s only one output for each input. so if you graph it no points will be on the same line

3) En la siguiente sucesión: 5; 9; 13; 17; ...; 257. ¿Qué posición ocupa el último término?

Answers

Answer:

33rd term

Step-by-step explanation:

To get the number of terms of the sequence, we will use the sum of nth term of the sequence formula;

Sn = n/2(a+l)

Tn = a + (n-1)d

a = 5

d = 9-5 = 13-9 = 4

Tn = 5 + (n-1)4

Tn = 5 + 4n-4

Tn = 4n+1

Sn = n/2(5+257)

Sn = 262n/2

Sn = 131n

Sn-1 = 131(n-1)

Sn-1 = 131n-131

Since Tn = Sn - Sn-1

4n + 1 = 131n - 131n + 131

4n + 1 = 131

4n = 131 - 1

4n = 130

n = 130/4

n = 32.5

n ≈ 33

Since n = 32.5 Hence257 occupies the 33rd term in the sequence

$34,589 discounted 8%

Answers

Answer: 2767.12 !!!!!!!!!!!!!!!!

the Answer is 2767.12

(3RD TIME POSTING THIS)
Write the word sentence as an inequality
A number x is no more than - 8

Answers

Answer:

x ≤ -8

Step-by-step explanation:

"A number x": x

"is no more than": ≤*

"-8": -8

x ≤ -8 is your answer.

*Note the choice of less than or equal too. "No more than" implies that it can technically be -8, only that it can't be greater than -8 (-7 or more).

~

Please Help Me With This Question File Is Attached

Answers

i can’t see the file that is attached

Please tell me the answer to 8 to the tenth power times 6 to the 4 power? I really need to know

Answers

Answer:

1391569403904

Step-by-step explanation:

Answer:

1.3915694e+12

Step-by-step explanation:

8. Terry, a plumber, worked 9 months out of the year. What percent of the year
was Terry NOT WORKING? *

Answers

Answer:

25%

Step-by-step explanation:

9/12 = 3/4

1/4 (the months he wasn't working) = 25%

9 months working X%
12 months not working. 100 %
X=9•100/12
X=75%
Terry spent 75% of the year working

100-75%=25%
Terry spent 25% of the year not working

A ____ should ALWAYS be representative of the general population.

A. Mode
B. Survey
C. Sample
D. Dot plot

(7th grade math)

Answers

I believe the answer is D

A population of wolves in a county is represented by the
equation P(t) = 80(0.98)', where t is the number of years
since 1998. What is the percent decrease of wolves per year?

Answers

Answer:

P(t)=80(0.98)t P ( t ) = 80 ( 0.98 ) t , where t is the number of years since 1998 Step-by-step explanation:

P(t)=80(0.98)t P ( t ) = 80 ( 0.98 ) t , where t is the number of years since 1998

The percent decrease of wolves per year is 2%.

To understand more, check below explanation.

Percentage decrease :

A population of wolves in a county is represented by the equation,

                        [tex]P(t)=80(0.98)^{t}[/tex]

where t is the number of years.

Let us consider that, 1998 is base year. so that, t = 0

                 [tex]P(0)=80[/tex]

Population of wolves in 1999, substitute t=1

             [tex]P(1)=80*0.98=78.4[/tex]

the percent decrease of wolves per year is computed as;

                                      [tex]=\frac{80-78.4}{80} *100\\\\=\frac{1.6}{100}*100\\ \\=0.02*100=2\%[/tex]

The percent decrease of wolves per year is 2%.

Learn more about the percentage here:

https://brainly.com/question/24304697

Charley has 1 ⅞ pounds of trail mix. If each bag can hold 1/12-pound of mix, how many full bags can be made?

Answers

Answer:

9

Step-by-step explanation:

Answer:

22

Step-by-step explanation:

1 7/8 = 15/8

15/8 ÷ 1/12 = 15/8 × 12/1 = 45/2 or 22 1/2

5x+6y+4, 3x+7z+6, and t+6h+2s+5​

Answers

Answer:

1st x=66y

2nd x=35z

3rd 6h+2s+t+5

Step-by-step explanation:

MArk BRAINLIEST FOR 4 MATH ALGEBRA CALCULATORS

HURRY
Given the function f(x) = −5x2 − x + 20, find f(3). −28 −13 62 64

Answers

Answer: I think the answer is 64 or -28

Step-by-step explanation:

I don’t get this help!

Answers

i can't put the whole screenshot in here

Can someone please help me with this question ASAP!! 'what is the gradient of the blue line?'

Answers

Answer:

First graph is 1/4

Second graph is 2

let me know if you need the steps

Simplify to a single power of 2

Answers

Answer:

[tex]2^{4}[/tex]

Step-by-step explanation:

Answer:

2^4

Since the answer is 16.

You earn $8.50 per hour. How many hours will it take you to earn $1,088.00?

Answers

Answer:

the answer is exactly 128 hours.

Answer: It will take 128 hours.

Step-by-step explanation: 1088 divided by 8.50 is 128, therefore, it would take 128 hours to make 1088 dollars off of a wage of 8.50.

Hope it helps, if not, comment below please!!!

:L

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