Distribute and combine like terms: −4(7r + 7)

Answers

Answer 1

Answer:

r=1

Step-by-step explanation:

-4(7r+7)

-28r-28

r=1


Related Questions

What is (0, 2) reflected over the x-axis

Answers

Answer:

(0,-2)

Step-by-step explanation:

plot the point and reflect it over the x axis

Jon is buying gas for his car. The cost of gas varies directly with the number of gallons of gas. If
he pays $8.75 for 5 gallons of gas, how much would it cost for 32 gallons?

Answers

Answer:

56 gallons of gas

Step-by-step explanation:

Jon paid $8.75 for 5 gallons.

So how much does 1 gallon cost?

=> 5 gallons = $8.75

=> 5/5 gallons = $8.75/5

=> 1 gallon = $1.75

So how much does 32 gallons cost?

=> 32 gallons = 32 * 1.75 = $56

Write an equivalent ratio for 1:2

Answers

Answer:

2:4

Step-by-step explanation:

Answer:

3:6

4:8

5:10

6:12

7:14

8:16

etc...

40 POINTS!!!! can you guys please answer these? and make sure they are right!! please hurry im taking this test at the moment!!

Answers

Answer:

1) ?

2) B

3) x = 2*

4) x = 0

5) B

6) y = -5x + 4

7)?

Step-by-step explanation:

1) 5(4x + 2y) - y = 20x + 10y + y = 20x + 9y = 20x + 9y

2)* Any value of  x makes the equation true. All real numbers.  (You may say x = 2 or anything else).

Interval Notation:

(−∞,∞)

If AC = 9 cm and tan ABC = 0.75, what is the length of BC?

Answers

Answer:

12 cm confirm ...................

From the concept of trigonometric ratios, we determine the length of the side  BC is 6.75 cm.

What are trigonometric ratios in terms of a right-angle triangle?

We know a right-angled triangle has three sides they are -: Hypotenuse,

Opposite and Adjacent.

We can remember SOH CAH TOA which is,

sin = opposite/hypotenuse, cos = adjecen/hypotenuse and

tan = opposite/adjacent.

Given, The length of the side AC = 9cm.

The measure of tan∠ABC = 0.75.

We know tan = opposite/adjacent.

Here, the opposite is AC and adjacent is BC.

Therefore, 0.75 = 9/BC.

BC = 9×0.75.

BC = 6.75.

learn more about trig ratios here :

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pls help asap! ill give brainliest:))

Answers

Answer:

the answer should be 38.75

What is the probability that the spinner will not land on a 5 or 8? 5 points

Answers

Answer:

3/4

Step-by-step explanation:

Based on the spinner attached :

Faces are in equal divisions ; number of faces = 8

Probability the spinner will not land on a certain number = 1 - P(spinner lands on that number)

P(spinner lands on 5) = 1 /8

P(spinner will not land on 5) = 1 - 1/8 = 7/8

P(spinner lands on 8) = 1/8

P(spinner will not land on 8) = 1 - 1/8 = 7/8

Hence,

P(spinner will not land on 5 or 8)

Required outcome = (1, 2, 3, 4, 6, 7) = 6

Total possible outcomes = (1.2, 3, 4, 5, 6, 7, 8) = 8

P(spinner will not land on 5 or 8). = 6/8 = 3/4

Classify the triangle based on its angles.

Answers

Answer:

Acute triangle (Also a scalane triangle)

Step-by-step explanation:

G ,J and H are all acute

find the volume of this shape please helppp

Answers

Answer

.

[tex] = 1.540 \: {cm}^{3} [/tex]

.

Explain

.

Use this formula :

[tex] = \pi \times {r}^{2 } \times t[/tex]

[tex] = \frac{22}{7} \times {( \frac{14}{2} )}^{2} \times 10 \\ [/tex]

[tex] = \frac{22}{7} \times {7}^{2} \times 10 \\ [/tex]

[tex] = \frac{22}{ \cancel7} \times \cancel{49} \times 10 \\ [/tex]

[tex] = 22 \times 7 \times 10[/tex]

[tex] = 154 \times 10[/tex]

[tex] = 1.540 \: {cm}^{3} [/tex]

.

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gak bisa bahasa inggris :(

A bag contains a mixture of 300 red and 75 yellow candies. If you choose one candy at random, what is the probability that it is yellow?

Answers

Answer: A solid 4% chance of picking a yellow

brainliest plz

Step-by-step explanation: We first should combine 300 and 75 because those are the total values of the candies in the bag. After, we should divide the different candies by the total amount of them getting the numbers .8 for red and .2 for yellow. Since the question is that the yellow occurs but not the red and you can miss the bag you would want to calculate what the probability would be to have B happen but not A. The equation for that is:

(1 - P(A)) × P(B)  

where P(A)=.8 and P(B)=.2

plugging in all things it would be

(1-.8)*.2

which equals .04 or 4%

Rewrite the function in standard form.
f(x)= 3(x + 5)2 - 7

Answers

Answer: F= 29
Explanation: first use distributive property and multiplied by three with the parentheses. And then multiply to by what you just solved. Remember to keep writing everything that we haven’t used yet. Then divide both the left side and the 6X by X. Then subtract 30 by 7. And add six. I hope this helped

i’m really confused 2 2/ 3 + 4 4/ 5

Answers

Answer:

7 7/15

Step-by-step explanation:

The answer is 7 7/15

Help me fast plsssss

Answers

Answer:

B. 78.5cm²

Step-by-step explanation:

Area of circle:

[tex]\pi[/tex]r²=[tex]\pi[/tex]10²=314.16

Area of shaded part:

314.16/4=78.54

Kayden was offered a job that paid a salary of $39, 500 in its first year. The salary
was set to increase by 2% per year every year. If Kayden worked at the job for 9 years,
what was the total amount of money earned over the 9 years, to the nearest whole
number?

Answers

Answer:

FV= $385,307.82

Step-by-step explanation:

Giving the following formula:

Annual salary (A)= $39,500

Growth rate (g)= 2% annual

Number of years (n)= 9 years

To calculate the total amount earned over 9 years, we need to use the following formula:

FV= {A*[(1+g)^n-1]}/g

A= annual deposit

FV= {39,500*[(1.02^9) - 1]} / 0.02

FV= $385,307.82

What is sin 20° cos 4° + cos 20° sin 4º equal to?

Answers

Answer:

Sin24

Step-by-step explanation:

Hope you see the given image .

Point P'P

P, prime is the image of P(5,-5)P(5,−5)P, left parenthesis, 5, comma, minus, 5, right parenthesis under a translation by 222 units to the left and 555 units up.
What are the coordinates of P'P ?

Answers

Answer:

3,0

Step-by-step explanation:

Consider the given circle with indicated diameter.
What is the circumference of the circle in terms of pi?
(C = id)
7
14
21
28

Answers

Answer:

a. C=7π

b. C=14π

c. C=21π

d. C=28π

Step-by-step explanation:

To find the circumference, you need to multiply the diameter (d) by π times i.e. C=πd.

find the prime factors of 24 please hurry??!!!

Answers

Answer:

So, the prime factorisation of 24 are 2 × 2 × 2 × 3 or 23 × 3, where 2 and 3 are the prime numbers.

Step-by-step explanation:

Hope it helps!

Rearrange the formula:
C = (F - 32)
to make F the subject
help

Answers

Answer:

f=c+32

Step-by-step explanation:

Eliminar paréntesis.

c=f-32

c=f−32

2 Suma 3232 a ambos lados.

c+32=f

c+32=f

3 Intercambia los lados.

f=c+32

f=c+32

C = (F - 32)

C = F - 32 (remove the bracket)

- F = - 32 - C (change the subject to F)

F = 32 + C (remove the negative sign from the subject & change the sign to everything at the right hand side)

Final answer , F = 32 + C

Hope this helps!!

Find the value of ‘N’ in each of the following:

a. 2n = ¼
b. 10⁶÷10n = 10²​

Answers

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

[tex]a. \: \: n \: = \: \red{ \boxed{ \tt{{ \: \frac{1}{8} \: }}}} \\ \\ \: \: \: \: \: \: b. \: \: n \: = \: \red{ \boxed{ \tt{ \: 10 {}^{ - 3} \: }}}[/tex]

Answer:

a. n=1/8

b. n=10^-3

please mark as brainliest

Which describes the cross section of the square prism that passes through the vertices A, B, C, and D shown

Below

Answers

Answer:

first of all,

Step-by-step explanation:

In triangle ABC one side equal  and two sides equal  

Step-by-step explanation:

We are given a prism whose base is square with sides 8 in and height 12 in.

If we take cross section through vertices A, B and C

We will get a cross section as triangle.

In triangle ABC, sides are AB, BC and AC

AB is diagonal of top square whose side 8 in.

AC is face diagonal of front face.

BC is face diagonal of right face.

AC=BC≠AB

Hence, In triangle ABC one side equal  and two side equal  

Hope this helps!!

The number of songs Oliver has downloaded this year, divided by 12, is equal to 24. What is an equation that represents this situation, and how many songs has Oliver downloaded?
A. 12d = 12: d = 1 song downloaded
B. 12d = 24: d = 2 songs downloaded
C. d12 = 24: d = 288 songs downloaded
D. b12 = 12: d = 144 songs downloaded

Answers

Answer:

c

Step-by-step explanation:

24×12=288 songs downloaded

this is because you have to do opposite operations according to one of the operations of math

An equation that represents the given situation is d/12 =24, and the number of songs Oliver has downloaded is 288. So, option C is the correct answer.

What is an equation?

In mathematics, an equation is a formula that expresses the equality of two expressions, by connecting them with the equals sign =.

Given that, the number of songs Oliver has downloaded this year, divided by 12, is equal to 24.

Let the number of songs downloaded be d.

So, the equation is d/12 =24

d=288

The equation to represent the scenario is d/12 =24. Therefore, option C is the correct answer.

To learn more about an equation visit:

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PLSSSS HELPPP ILL GIVEE COOKIE

Answers

Answer:

Sorry. It is 4.

Step-by-step explanation:

Again, where is my cookie?

i think the answer is four

Round to the nearest tenth.
7.61577310586

Answers

Answer:

7.6

Step-by-step explanation:

1is less than 5 so let it rest

Will make brain list

Answers

For h(x), to find out the maximum, you would need to use this formula: [tex]c-(\frac{b^{2} }{4a} )[/tex]

We are given the equation: [tex]h(x)=-x^{2}+4x-2[/tex].

So, a = -1, b = 4, and c = -2. Then, substitute the numbers into the formula:

h(x)'s maximum = [tex]c-(\frac{b^{2} }{4a} )[/tex]

                          = [tex](-2)-(\frac{(4)^{2} }{4(-1)} )[/tex]

                          = [tex](-2)-(\frac{16 }{-4} )[/tex]

                          = [tex](-2)-(-4)[/tex]

                          = [tex]2[/tex]

For g(x), to find out the maximum, just look at the highest point of y on the graph of the function, which is 2.

Thus, the answer you have chosen is the correct answer, which is choice 3: functions g and h have the same maximum of 2. Hope this helps :)

Sandra notices a fourth racer called the Whirlwind. Its poster says it covers 1232 yards in 180 seconds. She wants to compare the Whirlwind with the other racers. What is the Whirlwind's speed in yards per seconds to the nearest tenth?

Answers

Answer:

6.8yards/seconds

Step-by-step explanation:

Speed = Distance/Time

Given the following

Distance covered = 1232 yards

Time taken = 180 seconds

Substitute to get the speed

Speed  = 1232/180

Speed  = 6.84

Hence whirlwind's speed in yards per seconds to the nearest tenth is 6.8yards/seconds

Bill is a painter, who has been hired to paint a house.
• He receives an houry rate of $35 an hour.
• The materials Bill had to purchase cost $50 for the job.
• The amount of money Bill makes in profit, after working "x" hours, is modeled by the function:
f(x) = 352 – 50
Determine Bill's profit after working 10 hours.

Answers

Answer: 300

Step-by-step explanation: Math - 35X10-50

I may be wrong sorry!

Replace x with 10 in the given function.

We are seeking f(10).

f(10) = 35(10) - 50

f(10) = 350 - 50

f(10) = 300

After 10 hours, Bill's profit is $300.

Q. Identify the slope-intercept equation

Answers

Y=2x+4
Please give me Brainliest

Sally's huge dog weighed 175 pounds in 2018 and then weighed 145 pounds in 2020. What was the rate of change in weight?
pounds per year?

Answers

Answer: 15 lbs per year

Step-by-step explanation:

Huge dog lost 30 lbs in a span of 2 years so divide to find rate of change which is 15lbs per year

Answer: -15 pounds per year

Step-by-step explanation:

We can first list out all the information like Year, Weight

so (2018, 175) and (2020,145)

It asks to find the slope, so we just use the slope formula

175-145/2018-2020 = 30/-2 which is -15

True or false.

A counter-clockwise turn of 270° will land you at the same location as a 90° clockwise turn.

Answers

True. There is no difference between the two, they are the same thing and any time you will come up to the same place.
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