Multiply (3a+2)(3a-2)

Answers

Answer 1
the answer is 9a^2 - 4

Related Questions

17-(8 to the power of 3 - 45) times 7 times 2 - 1324

Answers

Answer:

-7845

Step-by-step explanation:

17-(8 to the power of 3-45) times 7 times 2 -1324=-7845

what is the formula for finding the measure of each interior angle of a regular polygon

50pts!!!!!!!!!!!!!!!!!!!!!!!!!!!

Answers

................................sorry

Answer:

180(n - 2)

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

      n

Step-by-step explanation:


somebody help with this thanks

Answers

i think the slope is 2

I need help with 1 through 10

Answers

Answer:

1) yes

2) no

3) no

4) no

5) yes

6) yes

7) yes

8) yes

9) circle equation - B

10) circle equation - D

11) 12 people in each team

sorry im not able to answer for 12 , 13 and 14 i have urgent work im so sorry

please help me with this question​

Answers

Answer

777

Step-by-step explanation:

jnimimimimimim000

Answer: 777

Hope this helps!!

Sorry if it's not correct!!

Pls help I’ll brainlest for the correct answer

Answers

Answer:

3+11a=80

Step-by-step explanation:

3+11a=80

11a=77

a=7

Which expression is equivalent to-6(-2/3+2x)
A.-4-12x
B.- 4+2x
C. 4-12x
D. 4 + 12x

Answers

Answer:

4-12x

Step-by-step explanation:

-6(-2/3 + 2x)

Expand the bracket

12/3 - 12x

4 - 12x

Answer:

The Answer is C

4
Which equation will solve the following word problem? Sue's class has 50 students. 20% of the students are in art class. How many students are NOT in art class?
Will give brainliest for correct answer


a)50/(50 * 0.20) = x


b)50 + (50 * 0.20) = x


c)50 - (50/0.20) = x


d)50 - (50 * 0.20) = x

Answers

Answer:

OK thanks

Step-by-step explanation:

The water is shallow but I have a short tour in your head with a bit of

Answer: Letter D

Step-by-step explanation:

A bag contains tiles number 1-10. What is the probability of first selecting a PRIME number, replacing it, then selecting a number less than or equal to 3?​

Answers

Answer:

0.12 = 12% probability of first selecting a PRIME number, replacing it, then selecting a number less than or equal to 3

Step-by-step explanation:

A probability is the number of desired outcomes divided by the number of total outcomes.

Probability of independent events:

Suppose we have two events, A and B, that are independent. The probability of both happening is given by:

[tex]P(A \cap B) = P(A) \times P(B)[/tex]

In this question:

Event A: Selecting a prime number.

Event B: Selecting a number less than or equal to 3

Probability of selecting a prime number:

Between 1 and 10, we have 4 prime numbers(2,3, 5 and 7), out of 10. So

[tex]P(A) = \frac{4}{10}[/tex]

Probability of selecting a number less than or equal to 3:

Three numbers(1,2,3) out of 10. So

[tex]P(B) = \frac{3}{10}[/tex]

Probability of both:

[tex]P(A \cap B) = P(A) \times P(B) = \frac{4}{10} \times \frac{3}{10} = \frac{12}{100} = 0.12[/tex]

0.12 = 12% probability of first selecting a PRIME number, replacing it, then selecting a number less than or equal to 3

A certain standardized tests math scores have a bell-shaped distribution with a mean of 530 and a standard deviation of 105. Complete part (a) through (c). (a) what percentage of standardized test scores is between 215 and 845. (b) what percentage of standardized test scores is less than 215 or greater than 845. (c) what percentage of standardized test scores is greater than 740.

Answers

It’s C because I guess to get more points to answer questions

Please help me with this please!!

Answers

Answer:

D

Step-by-step explanation:

1. If AABD - AHGE and AC and HF are angle

bisectors, find x.

B

G

F

24

. م

X

35

E

14

H

Answers

Answer:

9.6

Step-by-step explanation:

Find the diagram attached. Using the similarity theorem of triangles

AC/AD = FH/EH

Given

AC = 24

AD = 35

FH = x

EH = 14

Substitute into the formula

24/35 = x/14

Cross multiply

35×x = 24×14

35x = 336

x = 336/35

x = 9.6

Hence the value of x is 9.6

please help i have more questions btw

Answers

The picture is blurry I can’t see

Answer:

B [tex]1/4^2[/tex] and A [tex]4^1/4^3[/tex]

Step-by-step explanation:

the area of a certain desert is nine times the area of another desert. if the sum of their areas is 30,000,000 sq miles. find the area of each. ​

Answers

So the sum of both deserts is 30000000 and one is 9 times more than the other, it’s a 1:9 ratio. 9+1 is ten and 30000000/10 is 3,000,000. That’s the area of the smaller desert. You multiply 3 million by 9 and get 27,000,000 sq miles for the larger desert. Hope that makes some sense! :)

What is 4^0 in exponential form?

Answers

Anything to the power of 0 is just 1

Find two numbers whose sum is 44 and whose difference is 6.
smaller number
larger number

Answers

x+ y = 44
x - y = 6
—————
2x = 50

x = 25
y = 44-x = 19

yea um help a girlie out

Answers

Answer:

U (-10,-7)

V ( -10,-1)

w (-1, -9)

Step-by-step explanation:

So you are lucky I just did this unit lol so i got the answer

When doing any rotation around the origin, only one number changes integers if it is 90 degrees, in this case rotating 90 degrees will cross the y axis.

This means the y value will remain the same but the integer for the x values will switch.

So the new values are:

U (-10,-7)

V ( -10,-1)

w (-1, -9)

i hope this helps!

pls give thx and brainliest. ;)

I think it’s the second one good luck

Ella went to Crafting World Plus to buy fabric. She is trying to decide between polka-dot
fabric and striped fabric. It costs $15 to buy 4 yards of the polka-dot fabric.
)) This equation describes the cost of the striped fabric, where y represents the cost in
dollars and x represents the amount of fabric in yards:
y = 2.55x
)) Which type of fabric is cheaper?
the striped fabric
the polka-dot fabric
)) How much cheaper is that fabric?
cheaper per yard

Answers

7. I do not understand math but there is my answer

A Arrange the following integers in ascending order
1) 37, 41, 76, -2.25 -25
Answer: ​

Answers

ASCENDING ORDER

76,41,36,25,-2,-25

Answer:

1234567891011121314151617181920

APPLICATION
3. Use the first principle of derivatives to determine the equation of tangent to the
curve y = 1/radical7x at
x = 5

Answers

Answer:

[tex]\displaystyle y - \frac{\sqrt{35}}{35} = \frac{-\sqrt{35}}{350}(x - 5)[/tex]

General Formulas and Concepts:

Pre-Algebra

Order of Operations: BPEMDAS

BracketsParenthesisExponentsMultiplicationDivisionAdditionSubtractionLeft to Right

Algebra I

Coordinates (x, y)

Point-Slope Form: y - y₁ = m(x - x₁)

x₁ - x coordinatey₁ - y coordinatem - slope

Algebra II

Exponential Rule [Rewrite]: [tex]\displaystyle b^{-m} = \frac{1}{b^m}[/tex]

Calculus

Derivatives

The definition of a derivative is the slope of the tangent line.

Derivative Notation

Basic Power Rule:

f(x) = cxⁿf’(x) = c·nxⁿ⁻¹

Chain Rule: [tex]\displaystyle \frac{d}{dx}[f(g(x))] =f'(g(x)) \cdot g'(x)[/tex]

Step-by-step explanation:

Step 1: Define

[tex]\displaystyle y = \frac{1}{\sqrt{7x}} \\x = 5[/tex]

Step 2: Differentiate

[Function] Rewrite:                                                                                         [tex]\displaystyle y = \frac{1}{(7x)^\frac{1}{2}}[/tex][Function] Rewrite [Exponential Rule - Rewrite]:                                         [tex]\displaystyle y = (7x)^{-\frac{1}{2}}[/tex][Derivative] Chain Rule [Function]:                                                               [tex]\displaystyle y' = \frac{-1}{2}(7x)^{-\frac{1}{2} - 1} \cdot \frac{d}{dx}[7x][/tex][Derivative] Simplify:                                                                                     [tex]\displaystyle y' = \frac{-1}{2}(7x)^{-\frac{3}{2}} \cdot \frac{d}{dx}[7x][/tex][Derivative] Basic Power Rule:                                                                     [tex]\displaystyle y' = \frac{-1}{2}(7x)^{-\frac{3}{2}} \cdot 1 \cdot 7x^{1 - 1}[/tex][Derivative] Simplify:                                                                                     [tex]\displaystyle y' = \frac{-7}{2}(7x)^{-\frac{3}{2}}[/tex][Derivative] Rewrite [Exponential Rule - Rewrite]:                                       [tex]\displaystyle y' = \frac{-7}{2(7x)^{\frac{3}{2}}}[/tex]

Step 3: Find Slope of Tangent Line

Substitute in x [Derivative]:                                                                           [tex]\displaystyle y'(5) = \frac{-7}{2[7(5)]^{\frac{3}{2}}}[/tex][Tangent Slope] [Brackets] Multiply:                                                             [tex]\displaystyle y'(5) = \frac{-7}{2[35]^{\frac{3}{2}}}[/tex][Tangent Slope] Evaluate exponents:                                                         [tex]\displaystyle y'(5) = \frac{-7}{2(35\sqrt{35})}[/tex][Tangent Slope] Multiply:                                                                             [tex]\displaystyle y'(5) = \frac{-7}{70\sqrt{35}}[/tex][Tangent Slope] Simplify:                                                                             [tex]\displaystyle y'(5) = \frac{-1}{10\sqrt{35}}[/tex][Tangent Slope] Rationalize:                                                                         [tex]\displaystyle y'(5) = \frac{-\sqrt{35}}{350}[/tex]

Step 4: Find Tangent Line Equation

Point (x, y)

Substitute in x [Function]:                                                                             [tex]\displaystyle y(5) = \frac{1}{\sqrt{7(5)}}[/tex][Function] [√Radical] Multiply:                                                                     [tex]\displaystyle y(5) = \frac{1}{\sqrt{35}}[/tex][Function] Rationalize:                                                                                   [tex]\displaystyle y(5) = \frac{\sqrt{35}}{35}[/tex]Define point:                                                                                                 [tex]\displaystyle (5, \frac{\sqrt{35}}{35})[/tex]

Equation

Substitute in variables [Point-Slope Form]:                                                 [tex]\displaystyle y - \frac{\sqrt{35}}{35} = \frac{-\sqrt{35}}{350}(x - 5)[/tex]

Topic: AP Calculus AB/BC

Unit: Derivatives

Book: College Calculus 10e

On weekday mornings, it takes Leo 12 minutes to bike 2 miles to his school. This Saturday, Leo will bike to the park to meet his friends. The park is 5 miles away from Leo's house.

Answers

Answer:

30 minutes to the park

Step-by-step explanation:

12/2 = 6 min per mile

6 x 5 = 30 mins for 5 miles

is 15.09 less than 12.63

Answers

Answer: No

15.09 is greater than 12.63

Explain 5 different ways you use Math in your everyday life.

Answers

Answer:

Buying Groceries, paying for a house, maybe in your job, doing schoolwork of course, and counting money.

Step-by-step explanation:

Answer:

1. you use it to calculate time (managing your day)

2. you use it while driving (use in angles and degrees)

3. you use it while drawing (again, use in angles and degrees)

4. you use it while cooking

5. you use it while banking (financial help)

Step-by-step explanation:

hope this helps:) please mark brainliest

Solve 4 + 1/5r = -1. Single choice.
answer choices:

r=25

r=-25

r=-15

Answers

Answer:

-15

Step-by-step explanation:

imma pro

Answer: r = - 25

Step-by-step explanation:

how to find X in a parallelogram

Answers

Answer:

X=7

Step-by-step explanation:

15-8

How many kilometers are in 3 centimeters?

Answers

Answer:

0.00003km

....................

kilo means 1000

and centi means 1/100

Write a rule for the sequence. 1/9, 1/3, 5/9 Pls hurry Pls S's S's Sissies S's See fast

Answers

nth term of the sequence = (2n-1)/9

You are going to Wal-Mart to buy DVD's. The DVD'sare packaged in a box. There are thirty five DVDs in the box. You only want five. The box cost forty-five dollars. How much did you pay? How much change do you get back if you pay with fifty dollars? Explain the order of operations that was used.​

Answers

Answer:

574.94

Step-by-step explanation:

walmart

Quentin can read 18 pages of a book in 2 hours. How many pages can he read in 10 hours? PLEASE HELP ASAP FOR 17 POINTS!

Answers

Answer:

90 pages in 10 hours :)

Answer:

90 pages

Step-by-step explanation:

First, you need to find the unit rate of how many pages he can read.

So, you divide 18 pages by 2 hours = 9 pages per hour.

Then, you multiply 9*10 hours to find out how many pages he will read in 10 hours.

You get 90.

The people who live in chicago form a subset of those who rent apartments in chicago

Answers

If this is from the question that asks if the question makes sense then it’s

D. The statement does not make sense because the set of people who live in Chicago also includes home owners which are not part of the set of people who rent apartments in Chicago.
Hope this helps ✌️
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