Mathematics High School

5. Expand.
(a) 2(3x - 5y + 2)
(b)-3(4x + 5 – 2x2)
(c) 8(3a – 50+ 65)
(d) -4-3g + 2h- 7)
(e) 5041 - v + 2r2)
(f) -5(-x-y + 2)
(g) - 7(x2 - 2y2 + x)
(h) 12(a + 2b - 60 + 2)
Can someone explain how to expand these expressions

Answers

Answer 1

Answer:

A. 6x-10y+4

B.6x²-12x-15

C.24a+120

D.12g-8h+28

Related Questions

If $7,500 investment earns $450 over 3 years what's the interest rate

Answers

Answer:

Rate is 2%

Step-by-step explanation:

Step one:

given data

Principal= $7500

Simple interest= $450

time=3 years.

Applying the simple interest formula which is

SI=PRT/100

Step two:

substitute we have

450=7500*R*3/100

cross multiply we have

45000=22500R

divide both sides by 22500

R=45000/22500

R=2%

Question 4 of 25
True or false: f(x) is a function.
8
12
0
f(x)
A. True
Ο Ο
B. False

Answers

Answer:

true

Step-by-step explanation:

Solve for x.

x − 1/4 = 3/8

Answers

Answer:

x=5/8

Step-by-step explanation:

x=2/8+3/8

Parallel lines s and t are cut by a transversal r.

Answers

Answer:

A. <3 and <5

is the answer.

Answer:

Step-by-step explanation:

Hello friend!!!

The first option is correct

<3 and <5 are the alternate interior angles

Hope this helps

plz mark as brainliest!!!!!!!!

please help i am confused i appreciate answers!!!

Answers

The answer is b :) have a good day

Given m
11 n, find the value of z.
+
(10X-14)
>
(7x-8)

Answers

Answer:

Solve

Let's solve your inequality step-by-step.

10x−14>7x−8

Step 1: Subtract 7x from both sides.

10x−14−7x>7x−8−7x

3x−14>−8

Step 2: Add 14 to both sides.

3x−14+14>−8+14

3x>6

Step 3: Divide both sides by 3

3x/3>6/3

x>2

Step-by-step explanation:

Do your answers correctly or figure it out on paper

The expression 35000(0.87)^t describes the value of a car years after it has been purchased. Interpret the coefficients of the expression in the context of this situation.

Answers

Answer: 35,000 · 0.87t

Step-by-step explanation: A coefficient is multiplying

WILL GIVE BRAINLIEST
On a field trip, there are 8 adults and 24 students. What is the ratio of students to the total number of people on the field trip?

8 to 24
3 to 4
1 to 4
32 to 24

Answers

Answer:

3:4

Step-by-step explanation:

24 students : 32 people total

Divide both sides by 8

Answer: 3 to 4

this is correct, verified it myself B)

Explain the difference between parallel and perpendicular lines in terms of their slopes. What form of equation of a line is easiest to determine slope?

Answers

Answer:

Parallel lines have the same slope, while perpendicular lines have completely opposite slopes. So a line has a slope of 2, a parallel line would have a slope of 2, and a perpendicular line would have a slope of -1/2. The easiest form to identify the slope is standard form because it shows the slope within the equation with out having to solve the equation or convert it into another form.

What is 5pi 4 radians in degree

Answers

Answer: 225°

Step-by-step explanation:

To convert radians to degrees, multiply by 180/π (1 rad = 180° )

(5π/4) * (180/π/) = 225°

HELP!! I'll mark whoever answers brainliest. claire can run 20 miles in 95 minutes how many can she run in 285 minutes

Answers

Answer:

60

Step-by-step explanation:

285/95=3

3*20=60

Answer:

60

Step-by-step explanation:

i think not 100% sure

Which graph represents a function

Answers

the correct answer is c

ill mark brainliest
Solve the proportion.
b/36=5/9
b=

Answers

Answer:

20

Step-by-step explanation:

36➗4=9

20➗4=5

Calculate the average speed of a boat that travels 600 meters in 40 seconds.

Answers

Answer:

15 meters in 1 second

Step-by-step explanation:

Divide 600 by 40 which is 15

so it travels 15 meters in 1 second

hope this helps!

Answer:15 meters per second

Step-by-step explanation:

600/40= 15

PLEASE PLEASE PLEASE HELP WITH THE ONES CIRCLED IN BLACK I WILL GIVE EXTRA POINTS AND BRAINALIST TO THE FIRST PERSON TO ANSWER THANK YOUUUUU

Answers

Answer:

[tex]2. \: x > 0 \\ 3. \: - 1 \leqslant x < 3 \\ 4. \: 0 > x > 2[/tex]

What is a prime factor?

Answers

Prime factors are factors of a number that are, themselves, prime numbers. There are many methods to find the prime factors of a number, but one of the most common is to use a prime factor tree.

Answer:

Prime factors are factors of a number that are, themselves, prime numbers.

Example: the prime factor of 15 are 3 and 5 because 3x5=15 and they are both prime numbers.

Which decimal is greater ? .0203 or .023

Answers

Answer:.023

Step-by-step explanation:

What is the constant in 2m + 3m - m

Answers

Answer:

-m is the constant

Step-by-step explanation:

Hope this helps and could you mark this brainliest

Which expression is ubderfined

Answers

Answer:

D

Step-by-step explanation:

When the denominator is 0, the fraction is undefined.

HELP FAST!!! PLZ!! I BEG YOU!!! I'LL GIVE BRAINLYEST!!! 10 POINTS!!!

The frequency table shows the results of drawing 20 cards from the bag of 100. There are an equal number of cards of each color in the bag. Which color has the same frequency as the distribution of colors in the bag?

(I caint take a screen shot, so im going to try and recreate it)

COLOR FREQUENCY
Blue 4
Red 3
White 5
Yellow 8

A. white
B. red
C. yellow
D. blue

Answers

Answer:

white

Step-by-step explanation:

HELP ME PLEASE 40 POINTS

Answers

Answer: abd=50

Step-by-step explanation: bc angel 3 is 80 that means angel 2 is one hundred and abc is the same as angel tow because the two lines are so ABC is 100 and line segment BC is bisecting ABC so you divide ABC by two and get 50  

Tina's Jack Russell weighed 19.5 pounds. This week, her dog weighed 21.8 pounds. Find the percent of change in the weight of her dog?

Answers

Answer:

90%

Step-by-step explanation:

19.5 divided by 21.8 = 0.89449541 = 0.89% or 0.9%


Jeff mowed a lawn for $20.00 and received a $5,25 tip. He then washed a car for $12.50. How much money
did Jeff make for completing these two jobs?

Answers

Answer:

See below.

Step-by-step explanation:

Mowing the lawn: $20

Tip: $5.25

Add them together.

[tex]20+5.25=25.25[/tex]

Washing the car: $12.50

Add that to the amount.

[tex]25.25+12.50=37.75[/tex]

Answer: [tex]37.75[/tex]

:)

Answer "and" Explanation:

Depends on whether this is a simple math problem or a riddle. I’m assuming the latter so…

Jeff received $20.00 for providing a lawn mowing service. Jeff received an additional $5.25 tip. Ignoring costs and taxes, Jeff’s gross receipts were $25.25.

Jeff then decided to wash a car. The ways it’s worded leads me to believe he spent $12.50 on the car wash.

So, $25.25 - $12.50 = $12.75

Alternatively, if Jeff was paid to wash the car then:

$20.00 + $5.25 + 12.50 = $37.75

So the Answer will be: $37.75

It is roughly 8100 miles to fly from California to Australia. If it takes the airplane 15 hours to reach its destination of Australia, what was the average speed of the airplane in feet per hour?

Answers

Answer:

540 miles an hour or 2,851,200 Feet an hour

Step-by-step explanation:

Easy 30 Points!!!!!!!A microscope shows you an image of an object that is 20 times the object's actual size. So, the
scale factor of the enlargement is 20. An insect has a body length of 2 millimeters. What is the
body length of the insect under the microscope?
40 centimeters
40 millimeters
4 millimeters
400 millimeters

Answers

Answer:

1

Step-by-step explanation:

Answer:

Keywords:

Microscope, scale factor, enlargement, actual length, length to scale

For this case we have a microscope that shows an enlargement scale of objects, 140 times the actual size. Given the actual length of an insect, we want to know the scale length shown by the microscope. So, we have the following equation:

If the insect has a , then:

Thus, the microscope will show the insect with a size of 840mm

Answer:

The body length of the insect under the microscope is 840mm

Option D

Step-by-step explanation:

1 2
3
4 5 6 7 8 9
Janice needs to write a couplet about the summer breeze for her literature class. How many lines should her poem be?
05
O2
04
01

Answers

Answer:

5

Step-by-step explanation:

A cinquain is a five-line poem, with a set number of words in each line The French word "cinq" means five, which is why it is called a cinquain. Here is an example.

Apples,

Rosy, juicy,

Sweet, delicious, crisp,

Better still in pies,

Apples.

hope this helps and plz mark as brainlest

A corn vendor at a farmer’s market was selling a bag of 8 ears of corn for $2.56. Another vendor was selling a bag of 12 for $4.32. Complete the statement about which bag is the better deal.


The bag of
ears of corn is better a deal because each of ear of corn costs $
less.

Answers

Answer:

The bag of 8 ears of corn

Step-by-step explanation:

2.56/8 = .32 per ear of corn

4.32/12 = .36 per ear of corn

I need to solve 11-20 ASAP pls

Answers

In num 11 the upper level just next to 26x-3 is 36x-3 and the lower level just next to 36x-3 is 26x-3 In num 20 the lower level of v is 96degrees so they prove the paralysme

what is the slope of (-8, -3) (-24, 1)

Answers

Answer:

(-16 , -4)

Step-by-step explanation:

you use rise over run

the rise is your y

the run is the x

[tex]\frac{y2-y1}{x2-x1}[/tex]⇒[tex]\frac{-3-1}{-24-(-8)}[/tex] =

[tex]\frac{-4}{-16}[/tex] or (-16, -4)

I don’t understand this

Answers

It's 6x10+8x1+4×0.1 It's just going by place value!

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