Mathematics High School

Factor completely.
4x^2 - 1​

Answers

Answer 1
i think that’s right
Factor Completely.4x^2 - 1
Answer 2

Answer:(2x+1) (2x-1)

Step-by-step explanation:a^2-b^2=(a-b) where a=2x and b=1

Related Questions

What is 4/5 as decimal

Answers

Answer:

0.8

Step-by-step explanation:

its 0.8 cause you divid 4/5

3/10 divided by 10/3 ??​

Answers

Answer:

0.09 is the answer i helped

(15 points) pls help/ slightly challenging geometry

Answers

Answer:

Is on the photograph that I posted

Step-by-step explanation:

Just remember the hack that will allow you to fins out which triangles are sine, cosine, or tangent. Here is the photo of the hack I'm talking about♡

Hope this helped and sorry about d and e because I got confused

IREADY MATH LEVEL G

HELP ASAP DUE AT 11:59!!

Answers

I believe this is the answer

In 2008, there were 285 cell phone subscribers in the small town of Berrydale. The number of subscribers increased by 75% per year after 2008. How many cell phone subscribers were in Berrydale in 2017?

Answers

Answer:

Step-by-step explanation:

[tex]F=I(1.75^t)\\ \\ F=285(1.75)^{y-2008}\\ \\ F=285(1.75)^{2017-2008}\\ \\ F=285(1.75)^9\\ \\ F=43871.99\\ \\ F\approx 43872[/tex]

what is the amount of pieces in each color

Answers

Answer:

brown = 12

yellow = 30

orange = 36

Step-by-step explanation:

let 'b' = # brown

let '18+b' = # yellow

let '3b' = #orange

add them together and set equal to 78

b + 18 + b + 3b = 78

5b + 18 = 78

5b = 60

b = 12

y = 12 + 18 = 30

o = 3(12) = 36

12 + 30 + 36 = 78

whats -11 + x =19
i just dont know what we do can someone help me?

Answers

Just add the 11 to the other side since it’s negative, which gives you x=30

>
Find the next three values in the sequence,
-64,-32,-16,-8...

Answers

Answer:

-4, -2, -1

Hope that helps!

Step-by-step explanation:

Answer:

Step-by-step explanation:

geometric sequence with common ratio = 1/2

a₅ = a₄(1/2) = -4

a₆ = a₅(1/2) = -2

a₇ = a₆(1/2) = -1

EZ: Find the Equation Using Two Points
(0,200) & (120,0)

Answers

Answer:

[tex]y = \frac{-5}{3}x+200[/tex]

Step-by-step explanation:

Find the value of the slope.

Find the value of the y-int.

good luck, i hope this helps :)

if f(x)= 3x-4, find f(-2) - f(3)​

Answers

Answer:

-15

Step-by-step explanation:

f(-2) = 3(-2) - 4 = -6 - 4 = -10

f(3) = 3(3) - 4 = 9 - 4 = 5

f(-2) - f(3)​ = -10 - 5 = -15

Keisha's cat had kittens. The line plot below shows the weight, in pounds, of each kitten.

What is the total weight of all the kittens that weighed 3/8

pound?

Answers

Answer:

the answer would be 1 7/8

Step-by-step explanation:

first you would count up the number of kittens that weighted 3/8 of a pound. You should have the number of 5, next you would multiply 5 × 3/8= 1.875 (as a decimal). Then you would convert that number into a mixed number (fraction) because all the answers are in mixed number form. You should get 1 7/8 because:

(1875÷125)(1000÷125) = 158 when reduced to the simplest form. As the numerator is greater than the denominator, we have an IMPROPER fraction, so we can also express it as a MIXED NUMBER, thus 18751000 is also equal to 1 7/8 when expressed as a mixed number.

I hope this helps!

2a+b=5 and 6y+4y=48 show that 20a+10b has a greater value than 3x+2y

Answers

Answer:

Step-by-step explanation:

There is an error in the question. 6x+4y = 48

Multiply first equation by 10:

20x+10y = 50

Divide second equation by 2:

3x+2y = 24

50>24, so 20x+10y > 3x+2y

how much space is shown in the circle below

Answers

Answer:

there is no circle! maybe you forgot to attach it?

Note:

Please mark as Brainliest! <3

Lin's sister has a checking account. If the account balance ever falls below zero, the bank charges her a fee of $5.95 per day. Today, the balance in Lin's sister's account is -$2.67. In 14 days, Lin's sister will be paid $430 and will deposit it into her checking account. If there are no other transactions besides this deposit and the daily fee, will Lin continue to be charged $5.95 each day after this deposit is made? Explain or show your reasoning.

Answers

Answer: No, the bank will not keep charging her the $5.95 after the deposit is made.

Step-by-step explanation:

Today, Lin's sister's balance is -$2.67

She gets charged $5.95 per day.

There are 14 days until she can charge some money in the bank account, so the bank will charge $5.92 14 times

So her balance after 14 days will be:

Balance = -$2.67 - $5.95*14 = -$85.97

When she charges the $430 in the account, her balance will be:

Balance = -$85.97 + $430 = $344.03

So now she has a positive balance, which means that the bank does not charge her anymore.

please help!! will give brainliest!!
SR=___

Answers

Answer:

7

Step-by-step

on 2x-14 you got to divide by 2 on both sides and 2x/2 is 0 so that is how it is 7

Jaimie is practicing for the long jump. Each week she makes 10 jumps and after each jump she records the distance, in meters, she reaches with each jump. Her results for this week are represented in the table below. Jump 1 2 3 4 5 6 7 8 9 10 Distance (m) 5.1 5.3 5.4 5.2 5.5 5.4 5.2 5.3 5.5 3.5 Jaimie then reviews her results and determines the mean and standard deviation so that she can compare her results from this week to her results from the previous week. Jaimie felt the 10th jump was not reflective of her ability because she stumbled before making the jump and decided to remove the 10th jump from her data set. Determine whether each statement describes the change that will occur to the mean and standard deviation from this week's results when Jaimie removes the 10th jump from her data set. Select Yes or No for each statement. Yes No Removing the 10th jump from her data set will cause her average jump distance to increase. Removing the 10th jump from her data set will cause her average jump distance to decrease. The standard deviation will increase because the jump distances will be more spread out. The standard deviation will decrease because the jump distances will be more clustered together.

Answers

Answer:

mean=(5.1 +5.3+ 5.4 +5.2+ 5.5 +5.4+ 5.2 +5.3 +5.5+ 3.5)/10=51.4/10=5.14

AL

2

In a high school stadium there are 750 seats. There are twice as many seats in the home

section as there are in the visitor section. Which system of equations could be used to

determine the number of seats in the home section, h, and the number of seats in the

visitor section, v, in the stadium?



PLEASE HELP HURRY PLEASEEE

Answers

Answer:

There are 250 home section and 2(250) = 500 visitor section.

Step-by-step explanation:

Let there are h number of seats in the home section and v is the number of seats in the visitor section.

h+v = 750 ...(1)

There are twice as many seats in the home  section as there are in the visitor section.

v = 2h ...(2)

From equations (1) and (2).

h+2h = 750

3h = 750

h = 250

Hence, there are 250 home section and 2(250) = 500 visitor section.

A used book store also started selling used CDs and videos. In the first week, the store sold a combin
ation of 40 CDs and videos. They charged $4 per CD and $6 per video
and the total sales were $180. Determine the total number of CDs and videos sold
Set up two equations, one for number of CD's and videos sold and one for amount of money
made. Then solve for each variable by graphing in Desmos. Clearly state your answers in a
sentence.

Answers

Answer:

300 cds

Step-by-step explanation:

because 60x3=180 and 40 divied by 4 is 10.

What is the solution to the equation?

Answers

Answer:

B

Step-by-step explanation:

98+g=150

98+g-98=150-98

g = 52

Llam is setting up folding chairs for a meeting. If he arranges the chairs In 7 rows of the same length, he has 5 chairs left over. If he arranges the chairs in 5 rows of that same length, he has 23 left over. How many chalrs does Llam have?​

Answers

Liam has total 40 chairs with him

Is the product the same when multiplying 22 x (-5) and multiplying (-5) x 22? Explain

Answers

Answer: Yes it's the same due to communitive property of multiplication

Step-by-step explanation:

22 times -5 is -110

-5 times 22 is -110

Answer: Yes Bc Of Communitive Property

Step-by-step explanation:

Please any help is greatly appreciated

Answers

I think the answer is b

Find the 6th term 9 18 36

Answers

Answer:

I think the answer is 288.

Step-by-step explanation:

The rule seems to be multiplying the past number by 2. So, 9*2=18 and 18*2=36. If we continued that rule we would then get 72, 144, and the sixth term is then 288.

hope this helps :D

Answer:

Step-by-step explanation:

This is a geometric sequence because any term divided by the previous term is a constant called the common ratio. r=36/18=18/9=2 A geometric sequence is expressed as

[tex]a_n=ar^{n-1},\text{ where a=initial term, r=common ratio, n=term number}\\ \\ a_n=9(2^{n-1})\\ \\ a_6=9(2^5)\\ \\ a_6=288[/tex]

what is distance between C(−5,−2) and D(0,−4)

Answers

Answer:

[tex]\displaystyle d = \sqrt{29}[/tex]

General Formulas and Concepts:

Pre-Algebra

Order of Operations: BPEMDAS

Brackets Parenthesis Exponents Multiplication Division Addition Subtraction Left to Right

Algebra I

Coordinates (x, y)

Algebra II

Distance formula: [tex]\displaystyle d = \sqrt{(x_2-x_1)^2+(y_2-y_1)^2}[/tex]

Step-by-step explanation:

Step 1: Define

Point C(-5, -2)

Point D(0, -4)

Step 2: Find distance d

Simply plug in the 2 coordinates into the distance formula to find distance d

Substitute in points [Distance Formula]:                                                       [tex]\displaystyle d = \sqrt{(0+5)^2+(-4+2)^2}[/tex][√Radical] (Parenthesis) Add:                                                                        [tex]\displaystyle d = \sqrt{(5)^2+(-2)^2}[/tex][√Radical] Evaluate exponents:                                                                     [tex]\displaystyle d = \sqrt{25+4}[/tex][√Radical] Add:                                                                                               [tex]\displaystyle d = \sqrt{29}[/tex]
D=/29 that is your answer

Andrew has a Frisbee™ with a radius of 10 cm. What is the approximate circumference of the
Frisbee"?
A.15.7 cm, because C = 57
B.31.4 cm, because C = 107
C.314 cm, because C = 100 7
D.62.8 cm, because C = 207

Answers

Answer:

The answer is D. 62.8

Step-by-step explanation:

I used this formula.

Circumference = 2πr


1a. Tell whether the angles are adjacent or vertical. *
1 point
O Adjacent
O Vertical
1b. Find the value of x.
1 point
You answer

Answers

Answer:

it is adjacent and the answer to 1b is 146

match each set of values to its correct median

Answers

Answer:

purple = 6

orange = 4

blue = 2

red = 5

green = 3

Step-by-step explanation:

hope this helped

Answer:

Step-by-step explanation:

hope this helps

FREE BRAINLIEST! if you can answer this correctly ill give you brainliest and answer some of the questions you have posted :) thank you very much!!! (40pts)

Answers

Answer:

225 cm^3

Step-by-step explanation:

The number of paper clips per box in a truckload of boxes are normally distributed, with a mean of 100 and a standard deviation of 3.
a. The number of paper clips in 68% of the boxes is predicted to range from
b. The number of paper clips in 95% of the boxes is predicted to range from
to
to

Answers

Answer:

what's the answer somebody

Step-by-step explanation:


"The product of a number and -7,
increased by 9, is at most 16."

help please i will give brainliest thanks so much please helppop

Answers

Wahhhh i don’t know
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