Mathematics High School

1. 12x^2-8x

2. x^2+5x-36

3. 3x^2+10x+8

Please show all the work for how to solve these problems, thanks.​

Answers

Answer 1

Answer:

Step-by-step explanation:

1) the two members of the expression has 4x in common, so we can rewrite it as: 4x(3x-2)

2) we have to find two numbers that multipied give -36 and that added up give 5

the two number are 9 and -4

we can rewrite the expression as : (x+9)(x-4)

3) we have to solve the associated equation

3x^2+10x+8 = 0

Δ/4 = 25-24 = 1

x1 = (-5+1)/3 = -4/3

x2 = (-5-1)/3 = -2

now we can rewrite the expression as

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

Answer 2

Answer:

1. 12x^2-8x

taking common 4x

4x(x-2)

2. x^2+5x-36

doing middle term factorization

x²+9x-4x-36

x(x+9)-4(x+9)

(x+9)(x-4)

3. 3x^2+10x+8

Doing middle term factorization

3x²+6x+4x+8

3x(x+2)+4(x+2)

(x+2)(3x+4)

Related Questions

PLS HELP ME WILL MARK BRAINLIEST

Answers

Answer:

LA = 120 sq cm

SA = 132 sq. cm.

Step-by-step explanation:

LA = ph    where p = perimeter of the base and h = the height of prism.

Your base is a triangle.  The third side = [tex]\sqrt{5^{2} - 3^{2} }[/tex] = [tex]\sqrt{25 - 9} = \sqrt{16} = 4[/tex]

Now, the perimeter of the triangle is 3 + 4 + 5 = 12

So, LA = 12(10) = 120 sq cm

The area of the base is the area of a triangle.  A = bh/2 = 4(3)/2 = 6

SA = 2B + LA      where B is the area of the base

SA = 2(6) + 120 = 12 + 120 = 132 sq. cm.

I’ll give u BRANLIEST if u get it right

Answers

Answer:

c

Step-by-step explanation:

Step-by-step explanation:

I think its A plz give me brainliest

3/5 = 12/x find the missing numbers in the equivalent ratios

Answers

Answer:

x=20

Step-by-step explanation:

Well just cross multiply if its easier

x(3)=3x

12*5=60

60=3x

x=20

The awnser for this should be 20

100,000,000 times 100,000,000 minus 200,000,000

Answers

Answer:

9.9999998e+15

Step-by-step explanation:

can i have brainliest

Can somebody please answer this for me will give
Brainliest

Answers

1.) -2/3
2.) (0, 2)
3.) (0, 3)
I don’t know how to answer 4 and 5 sorry

What should be done first to evaluate the expression?

6 + 8 ÷ 4 + (4 × 5)²

Answers

Do the parentheses first :) ʕ•ᴥ•ʔ

Answer:

First, follow the first step in PEMDAS so you would do the parenthesis first followed by exponents, multiplication, division, addition, then subtraction

Step-by-step explanation:

6 + 8 ÷ 4 (4*5)^2

6 + 8 ÷ 4 + 20^2

6 + 8 ÷ 4 + 400

6 + 2 + 400

= 408

The circle graph shows the result of a survey of 1500 middle school students.



How many students save their money?

Answers

Answer:

435

Step-by-step explanation:

29% X 1500 = 435

what is the factored form of 3x+24y?​

Answers

Answer:

x+8y

Step-by-step explanation:

common factor it by 3

so the answer is

x+8y

3(x+8y) , is what i got.

Plz no links and explain what your doing not just the answer thank you!

Answers

Answer:

I’m confused

Step-by-step explanation:

there is no pic .. :/

6. If Aliya can make 10 bracelets in 2 days, how long will it take her to make 35 bracelets? WILL GIVE EXTRA 10 POINTS WILL MARK AS BRAINLIST

a) 175 days
b) 70 days
c) 7 days
d) 5 days​

Answers

Answer:

C

Step-by-step explanation:

Answer:

7 days

Step-by-step explanation:

We need to find bracelets per day.

1 day 2 days

5 bracelets 10 bracelets

since we know how many bracelets she can make per day, all we have to do is divide 35 by 5.

to get 7 days.

Bob bought a broken motor scooter for, repaired it installed the scooter for $150. That was $50 less than 1.5 times what he paid for. Write an equation that matches the situation

Answers

1. C. 130 = 1.5p-50
2. C. $3.19
4.(-6,12); (2,8)
5. (2,-9)
Hope this helps. :)

6
Kathryn puts some red, white, blue and pink counters in a bag. She gives the bag to
Clive, who takes a counter out at random, records the colour, and then puts it back
After some time Clive concludes that the probabilities for each colour are
red: 36% white: 34% blue: 3
Kathryn tells him there are fewer than 100 counters in the bag.
Work out how many counters of each of the colours are in the bag.
pink 7/10

Answers

Answer:

I don't get what you saying comment down below

Step-by-step explanation:

Evaluate the expression below
(1/7)³

Answers

Answer:

1/49

Step-by-step explanation:

[tex] \purple{ \tt{ \huge{ \: ✨Answer ✨ \: }}}[/tex]

[tex] \: \: \: \: \: \: \: \: \: \: \: \: \red{ \boxed{ \boxed{ \tt{ \huge{{ \: {7}^{ - 3}}}}}}} [/tex]

A veterinarian office conducted a survey of the weight of dogs that came in for physicals. 55, 37, 8, 50, 60, 50, 48 Find the mean: ​

Answers

Answer:

44

Step-by-step explanation: mean is the average so add 55, 37, 8, 50, 60, 50, 48 and you get 308 then divide 308 by how many numbers you added which is 7, so 308 divided by 7 is 44 which is the answer

10.
Find the measure of angle x. Hint. The sum of the measures of the angles in a triangle is 180 degrees.


A. 6°


B. 90°


C. 180°


D. 86°

Answers

Answer:

D

Step-by-step explanation:

Básicamente  sumas esos 2 y se lo restas a 180.

Answer:

D. 86

Step-by-step explanation:

since the angles of a triangle add up to equal 180, all you have to do is add the angles you know and then find the one you don't by subtracting it from 180.

this is how it looks mathematically:

180=26+68+x

180=94+x

180-94=x

x=86

Find the value of x.

Answers

x=74°

look at the given picture for stepwise

I need help on this question plsss help

Answers

Try 28m I hope it’s right

which sets of three lengths can be used to form a triangle?

A. 7ft, 5ft, 2ft

B. 6ft, 4ft, 8ft

C. 15cm, 18cm

D. 72 in, 10 in, 90 in

E. 6m, 2m, 12m

F. 6 yd, 21 yd, 25yd

​

Answers

B, F, and the third one I don’t know (I think it’s C)

For C you only listed two lengths. For D and E there is one length that is longer than the other two lengths combined, so it can’t make a triangle. Same thing for A except for A one length is the same as the other two lengths combined.

Zoey takes out a loan of $25,000 to pay for a car. Her interest rate is 3% for 60 months. How much will Zoey pay in total for the car?

Answers

Answer: $28750

Step-by-step explanation:

Since 12 months = 1 year, it should be noted that 60 months = 60/12 = 5 years.

Simple interest = Principal × Rate × Time

= $25000 × 3% × 5

= $25000 × 0.03 × 5

= $3750

The total amount that Joey will pay for the car will be the value of the principal plus the interest which will be:

= $25000 + $3750

= $28750

I need help with all of them please

Answers

Answer:

7) 55 .    8) 30        9) 18

Step-by-step explanation:

Triangle ABC is similar to DEF. Which proportion can be used to find the length of DE in centimeters?

Answers

Answer:

[tex]\frac{DE}{4} = \frac{9}{3}[/tex]

[tex]DE = 12[/tex]

Step-by-step explanation:

Given

See attachment for triangles ABC and DEF

Required

The proportion to find DE

To solve for DE, we can make use of the following equivalent ratios;

[tex]AB:DE = BC:EF[/tex]

Substitute values for AB, BC and EF

[tex]4:DE = 3:9[/tex]

Express as fractions

[tex]\frac{DE}{4} = \frac{9}{3}[/tex]

The above is the proportion to solve for DE

Solving further:

[tex]\frac{DE}{4} = 3[/tex]

[tex]DE = 4 * 3[/tex]

[tex]DE = 12[/tex]

HELPPPP PLSSSSSSSS(25 points

Answers

-4 would be correct, good luck :)

ANYONE PLS HELP ME IM RUNNING OUT OF TIMEEEEE

Answers

i want to say it’s y=7 because the line would be flat therefore have no slope

Jada makes sparkling juice by mixing 1 cup of sparkling water with every 3 cups of apple juice. How much apple juice does Jada need if she uses 5 cups of sparkling water? 7 cups of sparkling water?

Answers

Answer:

for 5 cups of sparkling water she would use 15 cups of apple juice and for 7 cups of sparkling water she would use 21 cups of apple juice

Step-by-step explanation:

noso3 x 1 entonces es 5x 3 =15


Which of the following best describes the shape of the
distribution?
A) skewed to the left
B) bimodal symmetric
C) skewed to the right
D) unimodal symmetric

Answers

Is a) skewed to the left

The shape of the data distribution in the dot plot is: A. skewed to the left.

What is a Left-Skewed Data Distribution?

A data distribution that is left-skew will have the longest tail at your far left, compared to your right.

The dot plot shows similar pattern, therefore, the shape of the data distribution represented by the dot plot is: A. skewed to the left

Learn more about left-skewed data on:

https://brainly.com/question/3252860

#SPJ6

Which of the following examples has a unit rate of 25 feet per second? Select all that apply. A) 100 feet in 4 seconds B) 150 feet in 10 seconds C) 225 feet in 9 seconds D) 275 feet in 11 seconds E) 100 feet in 5 seconds

Answers

Answer:

A) C) D)

Step-by-step explanation:

We can simply divide them to find out the answer.

A) 100/4=25

B)150/10=15

C)225/9=25

D)275/11=25

E)100/5=20

Ms. Neeson baked 30 cookies. 5 sixths of the cookies were oatmeal. How many oatmeal cookies did Ms. Neeson bake?

Answers

Answer: u find 5/6 of 30 cookies. of means to multiply do 5/6*30=  

Step-by-step explanation:

25 oatmeal cookies

5/6 of 30

30/6=5
5*5=25

Help me out here. Math eh not my thing. :P

Answers

Answer:

Question 13 is the third one. Number 15 is the second one.

Find the distance between the points (1,–5) and (9,9).

Answers

Answer:

[tex]\sqrt{260\\[/tex] or 16.12

Step-by-step explanation:

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

Distance (d) = √(9 - 1)2 + (9 - -5)2

= √(8)2 + (14)2

= √260

= 2√65

= 16.124515496597

A cafeteria manager can choose from among six side dishes for the lunch menu: applesauce, broccoli, corn, dumplings, egg rolls, or French fries. He uses a computer program to randomly select three dishes for Monday’s lunch.

Answers

Answer:

0.20

Step-by-step explanation:

Given : The number of side dishes for the lunch menu =6

The number of ways to select 3 dishes from 6 :

Total outcomes :                    

If applesauce and broccoli is already selected , then we need to select only one dish out of remaining 4 dishes.

Number of ways to select 1 dish from 4 :

Favorable outcomes:  

Now, the theoretical probability that applesauce and broccoli will both be offered on Monday :-

Hence, the theoretical probability that applesauce and broccoli will both be offered on Monday = 0.20

Step-by-step explanation:

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