8r - 4 (7r - 5) this is the question im struggling with​

Answers

Answer 1

i am pretty sure the answer is:

= -20r + 20


Related Questions

What is this answer -1/2 + 1/10

Answers

Answer:

4536363646

Step-by-step explanation:

The exact form of the equation -1/2+1/10 is -2/5 and the decimal form of -2/5 is -0.4

PLEASE HELP IT'S TIMED
Order from least to greatest 0, -1.9, -1 4/5, -1/3, and 0.25

Answers

Answer:

0.25, 4/5, 1/3, 1.9 and you answer mine please

Answer:

-1.9,-1 4/5, -1/3, 0, .25

Step-by-step explanation:

Jabari deposited $300 in a savings account. Each month thereafter, he deposits $20 into the account. Write a formula to represent this sequence. Begin you formula with an=

Answers

The formula should look something like this an=300+20(m)

The harbor at Green Top Lake has a lot of algae. However, as it gets colder, algae starts dying. At the beginning of fall, there 150,000 square feet of algae. Suppose half of the algae dies per month. What is the relationship between time and amount of algae?
discrete or continuous

Answers

Answer:

Discrete.

If it was continuous, probably all the algae would have died.

Discrete

It is the amount of time of an event. Fall is a type of event, which lasts for a period of time.

If two lines in a linear system __________, they have exactly one point in common.

Answers

intersect.

because yes.

Answer:

are coplanar and non-parallel (?)

Write an equation in point-slope form of the line that passes
through the given points.
2,-2). (5.7)

Answers

Answer:

Step-by-step explanation:

(7 + 2)/(5 - 2)= 9/3= 3

y + 2 = 3(x - 2)

y + 2 = 3x - 6

y = 3x - 8

Use the foil method to check your answer 3(x+1)(x+2)

Answers

Answer: Your input: multiply (x+1)(x+2) using FOIL.

((x)+(1))((x)+(2))=(x)⋅(x)First+(x)⋅(2) Outer+(1)⋅(x) Inner+(1)⋅(2) Last=

=(x2)+(2x)+(x)+(2)=

=x2+3x+2.

Answer: (x+1)(x+2)= only look at this

A sports drink bottle contains 16.9 fluid Ounces. Andre drank 80% of the
bottle. How many fluid Ounces did Andre drink?

Answers

Answer:

13.52 fluid ounces should be the right answer! :)

Step-by-step explanation:

Andre drank from the bottle 13.52 fluid ounces if he drank 80% of bottle.

What is Percentage?

Percentage is defined as the parts of a number in a whole of 100. This is denoted by the symbol '%'.

In other words, percentage can be defined as the ratio expressed as a fraction of 100.

Any number can be expressed as a percentage of another number by dividing the number with the whole of other number and then multiplying with 100.

Given that, fluid contained in a sports bottle = 16.9 fluid ounces.

Andre drank 80% of the fluid contained in the bottle.

80% of the bottle = 80% × 16.9

                             = (80 / 100) × 16.9

                             = 0.8 × 16.9

                             = 13.52

So this is the total fluid ounces Andre drink.

Hence Andre drank 13.52 fluid ounces from the bottle.

To learn more about Percentage, click on the link given below :

https://brainly.com/question/29306119

#SPJ2

What’s the value of a?

Answers

Answer:

a = 69

Step-by-step explanation:

The linear pair equals 180 degrees.

a + 90 + 21 = 180

a + 111 = 180

a = 69

nice!

Answer:

A= 69 degrees

Step-by-step explanation:

if all those angles equal a total of 180 degrees then all you need to do is add the angles your given which in this case is 21 and a 90 degree angle which would equal 111 degrees, then subtract 111 from 180 and that would be the answer to the missing angle, which is 69 degrees.

21 + 90 = 111

180- 111 = 69

WILL GIVE BRAINLIEST-
Complete the table to multiply x^2 - 4x + 4 and 6x + 3.

Answers

6x^3 -24x^2 24x
3x^2 -12x 12

✨ Easy points if you know how to do slope well ✨

Answers

Answer:

I believe it's A

Step-by-step explanation:

Answer:

its y=x

Step-by-step explanation:

I need help! ASAP! ITS DUE AT 11:59 PM
Estimate too

Estimate:
9 1\4 - 3 2\3. Word Form: Nine and one - fourth minus three and two - thirds

Estimate them too plss! Ill give brainliest!

Answers

Estimated answer: 13
Exact answer: 12 11/12

Answer:

5 7/12

Step-by-step explanation:

Convert 5.5833333333333

Any consecutive sides of a parallelogram are parallel.

A. Always True
B. Sometimes True
C. Never true

Answers

It’s always true cuz a parallelogram is parallel

ANSWER:Any consecutive sides of a parallelogram are parallel?

A. Always True is your answer.

1 cm
3 cm
3 cm
1 cm
3 cm
4 cm
Find the surface area of the above solid.

Answers

I thinks its 50 sorry if it’s wrong

To solve for x in the equation x - 4 = 19, which inverse operation would you
apply? *
O add 4 to both sides
subtract 4 from both sides
add 19 to both sides
O subtract 19 from both sides

Answers

add 4 to both sides......
add 4 to both sides :)

Tell which property the statement 7(4+a)=7(a+4) illustrates

Answers

Answer:

The commutative or associative property! Hope that helps!

Step-by-step explanation:

What is the 7th term of the sequence below? 2, 10, 50, 250, …

Answers

12,500
I think but I’m not sure lol

What is the equation of the line that passes through (5,-3) and (3,7)

Answers

Answer:

-5x +22

Step-by-step explanation:

Work out the percentage change when a price of £80 is increased to £100

Answers

Answer:

25%

Step-by-step explanation:

100 - 80 = 20 (change)

change / original price X 100

20 / 80 = 0.25

0.25 X 100 = 25

In a bouquet of flowers, there are 16 irises and 29 sunflowers. Write the ratio of sunflowers to irises in 3 different way

Answers

Answer:

29:16

29 To 16

29/16

Write the equation of the line given a slope of 0 through the point (5, -7)

Answers

Answer:

y=-7

Step-by-step explanation:

y-y1=m(x-x1)

y-(-7)=0(x-5)

y+7=0

y=0-7=-7

Solve
S = 2πr(h + r) for h

Answers

Answer:

S/2πr-r = h

Step-by-step explanation:

S = 2πr(h + r)

S/2πr = h+r

S/2πr - r = h

CAN YOU PLS HELP ME I BEG YOU I WILL GIVE YOU BRAINLET ND SIXTY POINTS pllls i beg you
math!!!

Answers

both are c!

hope this helps!!

a number m decreased by 9 is 6

Answers

Answer:

m-9=6

m=6+9=15

I think.......

A dump truck pours sand into a container in the shape of a rectangular prism with a square base of length 2 feet. The height, h, of the sand in the container increases at a rate of approximately 8 inches per minute. Create an equation that models the volume, V, of the sand in the container in terms of h, then use the equation to determine the time at which the volume is 64 cubic feet. Note that the volume of a rectangular prism is V=l×w×h, where l, w, and h are the length, width, and height of the prism.

Answers

Answer:

I think the answer is 24 minutes!

Step-by-step explanation:

I hope this helps!

Answer:6+89

Step-by-step explanation:439+3947+v=90

Which answer choice best fits the given word;
1- Consecutive is:
A) A set of angles that have a sum of 90*
B) One after the other
C) Match or agree almost exactly
D) A straight line

2- Complementary is:
A) One after the other
B) A set of angles that have a sum of 90*
C) A straight line
D) Match or agree almost exactly

3- Corresponding is:
A) A straight line
B) A set of angles that have a sum of 90*
C) One after the other
D) Match or agree almost exactly

4- Congruent is:
A) Exactly the same
B) A straight line
C) A set of angles that have a sum of 90*
D) One after the other

5- Scalene is:
A) 2 sides equal
B) All sides equal
C) No sides equal
D) None of the above

6- Equilateral is:
A) No sides equal
B) All sides equal
C) 2 sides equal
D) None of the above

7- Isosceles is:
A) 2 sides equal
B) No sides equal
C) All sides equal
D) None of the above

8- Acute is:
A) less than 90*
B) more than 90*
C) exactly 90*
D) exactly 180*

9- Obtuse is:
A) exactly 180*
B) more than 90*
C) exactly 90*
D) less than 90*

10- Bisect is:
A) all of the choices
B) cut in half
C) divide into equal parts
D) two sections

Answers

Answer: Sometimes, two angles are a part of each other or are connected to each other. These angles are called angle pairs.

Let's look at two special types of angle pairs, supplementary angles or complementary angles.

Supplementary angles are two angles whose sum is equal to 180∘. In other words when you add the measure of one angle in the pair with the other angle in the pair, they equal 180 degrees.

These two angles are supplementary because together they form a straight line. You can also tell that they are supplementary because when you add their angle measures the sum is equal to 180 degrees.

120+60=180∘

Complementary angles are a pair of angles whose sum is 90∘. Here is an example of complementary angles.

If you add up the two angle measures, the sum is equal to 90 degrees. Therefore, the two angles are complementary.

You can find missing angle measures by using information about supplementary and complementary angles.

Let's look at an example.

Find the measure of x.

First, identify that these two angles are supplementary. They form a straight line. The total number of degrees in a straight line is 180. Therefore, you can write the following equation to solve.

130+xx=180=50∘

The missing angle is equal to 50∘.

Here the two angles are complementary. Therefore the sum of the two angles is equal to 90 degrees. Write an equation and solve for the missing angle measure.

75+xx=90=15∘

The missing angle measure is equal to 50∘.

Examples

Example 1

Earlier, you were given a problem about Paul and the house.

He has an angle pair that is formed by two 90 degree angles. What type of angle pair is formed when two 90 degree angles are combined?

First,add the two angles to calculate their sum.

90 + 90 = 180

Then, identify which angle pair adds up to 90 degrees.

Supplementary angles

The answer is that the pair are supplementary angles.

Example 2

Identify the angle pair as complementary or supplementary.

First, add the two angles to calculate their sum.

75 + 105 = 180

Then, identify which angle pair adds up to 180 degrees.

Supplementary angles

The answer is supplementary angles.

Write whether each pair is complementary or supplementary.

Example 3

Identify the angle pair as complementary or supplementary.

If the sum of the angles is equal to 180 degrees.

First, identify which angle pair adds up to 180 degrees.

Supplementary angles

The answer is supplementary angles.

Example 4

Identify the angle pair as complementary or supplementary.

If one angle is 60 degrees and the other angle is 120 degrees.

First, add the two angles together to find the sum.

60 + 120 = 180

Then, identify which angle pair adds up to 180 degrees.

Supplementary angles

The answer is supplementary angles.

Example 5

Identify the angle pair as complementary or supplementary.

First, add the two angles to calculate their sum.

30 + 60 = 90

Then, identify which angle pair adds up to 90 degrees.

Complementary angles

The answer is that the pair are complementary angles.

Step-by-step explanation:

A sprinkler system uses 800 gallons of water in 5 days. The system uses ___ gallons of water in 1 day

Answers

Answer:

160

Step-by-step explanation:

800 gallons in 5 days. The days is the denominator and the gallons are the numerator, whatever you do the the bottom you do to the top, so you divide the denominator by 5 and the numerator by 5 and you get 160 gallons per day. If you want to know how your answer is right, multiply 160 by 5

What is the positive solution to the equation 3x2 + 31 = 912
A 10.95
B 8.51
8.36
D 7.75
E 4.47

Answers

Answer:

E) 4.47

Step-by-step explanation:

3x²+31=91

3x²=91-31

3x²=60

x²=60÷3

x²=20

x=√20

x=4.47

Answer:

4.47

Step-by-step explanation:

the only rational answer for this is 4.47 because once you solve as much as you can, you should end up with a whole number multiplied by a square root. the decimal form of that  number is 4.47

A sweatshirt that was originally priced at $42.50 has been marked down to $34.00.
What is the percent decrease?
80%
25%
15%
20%

Answers

Answer:

the answer is 20%.

Step-by-step explanation:

all you have to do is multiply 42.50x.20 and it gives you 8.5. to check your answer you subtract 34.00 from 42.50 and you get 8.5 as well. hope this helps!

Answer:

20%

Step-by-step explanation:

Hope it helps! :)

A vendor sells hot dogs and bags of potato chips. A customer buys 3 hot dogs and 5 bags of potato chips for $9.50. Another customer buys 2 hot dogs and 5 bags of potato chips for $8.00. Find the cost of each item.

Answers

Step-by-step explanation:

3d + 5p=9.50

2d + 5p=8

1 hot dog cost $1.50

2 × 1.50 + 5p = 8

3 + 5p = 8

5p = 8 - 3

5p = 5

p = 1

1 bag of potato chips cost $1.00

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