Please help!

Write the sum, and then write an equivalent expression by collecting like terms and removing parentheses whenever possible.

a. -4 and 4b + 4
b. 3x and 1 -3x

Answers

Answer 1

Answer:

Does this problem have a picture, I just need to make sure I am seeing everything correctly thanks!

Step-by-step explanation:

a. -4 and 4b + 4 = 4b

-4 and 4b + 4 = -4 + (4b + 4) = 4b + (4 - 4) = 4b + 0 = 4b

b. 3x and 1 - 3x = 1

3x and 1 - 3x = 3x + (1 - 3x) = 1 + (3x - 3x) = 1 + 0 = 1


Related Questions

Calculate these, and write each awnser in Standard Form.

Answers

Step-by-step explanation:

Do you need answers to all of them of some of them?

1. (4.5×10¹²)÷(9×10^10)

(45×10^-1×10¹²)÷(9×10^10)

(45×10¹¹)÷(9×10^10)

(45÷9)×(10¹¹÷10^10)

5×10

if you need help with the others kindly let me know

a company can buy packages of 500 sheets of paper for $4. At this rate, how much paper can bet bought for $2000​

Answers

Answer:

2000/4×500=250000sheets

Step-by-step explanation:

Makayla has 5 yards of ribbon to use for a craft project. She cuts the ribbon into pieces that are yard long.
How many pieces of ribbon does Makayla have?

Answers

Answer:

20

Step-by-step explanation:

If she has 5 yards and she cuts them into 1/4 each. You're basically multiplying 5 by 4, and that's 20.

I'm stuck and I need help quick

Answers

Answer:4

Step-by-step explanation:

The square root of 9 is 3, 3 multiplied by 2 is 6, and 10 - 6 =4.

Does bin width matter when it comes to histograms? Why or why not?

Answers

Answer:

Avoid histograms with small bin widths that group data into lots of bins. A histogram constructed with small bin widths will show the distribution as a “pancake.” so no it does not help us see the pattern in the data.

Step-by-step explanation:

If you can help I’m still learning

Answers

Answer:

It’s +16

Step-by-step explanation:

HELPPPPPPOPPOPPPPP???

Answers

z = 106

y = 74

Since angle 74 and angle y are the same sizes, you can know for a fact they are the same measurments. Next, you would do 74(2) and that would get you 148. 360 - 148 is 212. 212/2 is 106. TADAAAAA. That's the answer.

Write the equation of the line that passes through the point (-3, 5) and has a slope of
7.

Answers

Answer:

m=7

X1= -3

Y1=5

Y-Y1=m(X-X1)

Y-5=7(X-(-3))

Y-5=7(X+3)

Y-5=7X+21

Y=7X+21+5

Y=7X+26

Solve the inequality *
5< -2x + 5 < 25

Answers

Answer:

[tex]\huge\boxed{-10<x<0\to x\in(-10;\ 0)}[/tex]

Step-by-step explanation:

[tex]5<-2x+5<25\qquad|\text{subtract 5 from all sides}\\\\0<-2x<20\qquad|\text{change all signs}\\\\0>2x>-20\to -20<2x<0\qquad|\text{divide all sides by 2}\\\\-\dfrac{20}{2}<\dfrac{2x}{2}<\dfrac{0}{2}\\\\-10<x<0[/tex]

Determine the value of x

Answers

Answer: 8


22 is to 11 because they are both on the hypotenuse. Since 11 is half of 22, x would be half of 16, 8.

Answer:

I would think it is 8

Step-by-step explanation:

By assuming the triangles are equal to each other in a way that the larger triangle is the smaller triangle's length times 2. For example, one side of the smaller triangle is 11 so times 2 would be the larger triangle's side. So, by dividing 16 by two, you would get 8. Hope this helped and that I did it correctly!

Select the correct answer.
If the zeros of a quadratic function are 3 and 8, what are the factors of the function?
ΟΑ.
(X + 8) and (x - 3)
OB.
(x - 8) and (x + 3)
O C.
(X + 8) and (x + 3)
OD.
(x - 8) and (x-3)

Answers

Answer:

OD

Step-by-step explanation:

The zero x=8 will make the factor (x-8) = 0 and the zero x=3 will make the factor (x-3) = 0.

so it's (x-8) and (x-3)

Mrs. Music bought a dress priced at $98.00. If the sales tax is 6%, what is the total amount she paid for the dress?

Answers

Answer: $103.88

Step-by-step explanation:

98*0.06=5.88 <--- total tax charged

98+5.88=103.88 <--- add tax to price

help me!!!!!!!!!!!!!

Answers

Answer: 17

Step-by-step explanation:

2 x2 is 4  4+13 is 17

Please answer!! Screenshot attached

Answers

Answer:

there is a website where you can make triangles and that would get it 4 u

Step-by-step explanation:

Brianna had 20$ but spent d dollars on ice cream. Write an expression to represent how much Brianna has after buying ice cream​

Answers

Answer:

20-d=y

Step-by-step explanation:

Haley bought a hamburger, two hotdogs, a large Order of fries, and one medium soda. How much change did she get from $20.00?

Hamburger: $4.25
Hotdogs: $2.50
Medium soda: $2.15
French fries: $2.95

A. $8.15
B. $5.65
C. $14.35
D. $11.85

Answers

Answer:

Her change would be $5.65

Step-by-step explanation:

4.25 + 2.50 + 2.50 + 2.95 + 2.15 = $14.35

20.00 - 14.35 = 5.65

Isabel finished her history assignment in 1/5 hours. Then she completed her math assignment in 1/2 hours. What was the total amount of time Isabel spent doing these two assignments?

Write your answer as a fraction in simplest form.

Answers

Answer:70/100 or 7/10

Step-by-step explanation:

one hour is 60 mins

1/5 of an hour is 12 mins

1/2 of an hour is 30

30 + 12 = 42

42/60 simplified is 7/10

Why did most ancient cultures writ out their mathematical texts in words

Answers

Answer:

They had no numeral for zero in their number system.

Without a zero, it is hard to accurately represent real world problems. This makes it easier to use words rather than numbers.

Step-by-step explanation:

make it braintliest please

Mary buys 8 cupcakes for $6 and Pete buys 12 cupcakes for $9. Who got the better deal PER cupcake or did they spend the same amount per cupcake?

Answers

Answer:

Step-by-step explanation:

Mary spends 8*6=48 dollars

Pete spends 9*12=108

Mary got a better deal per cupcake

Answer:

They spent the same amount per cupcake ($1.33)

Step-by-step explanation:

To solve this, we need to find the unit rate of cost per cupcake. To do that, we divide 8 by 6 and divide 12 by 9. When we do that, we get 1.33 for both. That means they spent the same amount per cupcake ($1.33).

Lois is riding in the country. after riding her bike at a constant speed for 4 hours, she finds that she traveled a distance of 52 miles. Lois wants to know the rate, r, at which she was biking. Drag and drop these tiles to complete the equation Lois could use to determine the rate she was biking.

Answers

she is going 13 miles an hour or 52 divided by 4

Answer:

13 mph

Step-by-step explanation:

When you divide 52 (total miles) by 4 (hours biked) you get 13 as your answer.

PLS RESPOND FAST!! What is the value of x in the diagram belo2v
A. 9
B. 8
C. 7
D. 6

Answers

Answer:

C

Step-by-step explanation:

The 2 triangles are similar (AA postulate ), thus the ratios of corresponding sides are equal, that is

[tex]\frac{14}{2}[/tex] = [tex]\frac{49}{x}[/tex] ( cross- multiply )

14x = 98 ( divide both sides by 14 )

x = 7 → C

It’s be b cuz it best supports

Mary earned 24 points on her science test. The total points on the test was 30 points. What is Mary’s test score as a percent? Show work

Answers

Answer:

80%

Step-by-step explanation:

24 devided by 30 = 0.8

0.8 times 100 = 80%

Answer:

80%

Step-by-step explanation:

take the number you got  and divide it by how many it was out of and then move the decimal two points to the right. 24/30= 0.8     then move the decimal and get 80 and add the percent sign.

hello please help me, the product of two consecutive odd integers is 399. what equation would be used to solve this problem?

Answers

A + B = 399
That is the answer

Arlinda is participating in her school reading
challenge. She reads 40 books in 6 months. If 26
of the books are fiction, then what percent of the
books that she read are non-fiction?

Answers

Answer:

14

Step-by-step explanation:

40-26=14 so therefore 14% of the books are non-fiction

PLSSSS HELPPPPPP!!!!!

Answers

Answer: Gordon Types 74 words per minute

They type 74 words per minute hope this helped

Solve number 1 that is in the image

Answers

Answer:

120, 15

Step-by-step explanation:

Answer:

15,120

Step-by-step explanation:

x-axis-15(read vertically)

y-axis-120(read horizontally)

Find the value of x. Give the answer in simplest radical form.

PLEASE HELP

Answers

The answer is 7 or 7.07. Hope this helps

Class A has 20 pupils and class B has 19 pupils.
Both classes site the same maths test
The mean score for class A is 33.
The mean score for class B is 62
What is the mean score (rounded to 2 DP) in the maths test across
both classes?​

Answers

Answer:

47.5

Step-by-step explanation:

33+62=95

95/2=47.5

Does the graph represent an arithmetic sequence or geometric sequence?

Group of answer choices

Geometric sequence because the graph models a linear function.

Arithmetic sequence because the graph models an exponential function.

Geometric sequence because the graph models an exponential function.

Geometric sequence because the graph models a quadratic function.

Arithmetic sequence because the graph models a linear function.

Arithmetic sequence because the graph models a quadratic function.

Answers

Answer:

it is geometric because it multiplies by a factor of 3

An intercepted arc has a length of 19 yards. If the radius is 4 yards, find the measure of the central angle in radians and degrees.

Answers

The length of an arc is the distance between the endpoints of the arc.

The central angle is: [tex]\mathbf{4.75\ rad}[/tex] or [tex]\mathbf{272.16^o}[/tex]

The given parameters are:

[tex]\mathbf{l = 19yd}[/tex] --- length of the arc

[tex]\mathbf{r = 4}[/tex] -- radius of the circle

The length of an arc is calculated as:

[tex]\mathbf{l =r\theta}[/tex]

Divide both sides by r

[tex]\mathbf{\theta = \frac lr}[/tex]

Substitute known values

[tex]\mathbf{\theta = \frac{19}4}[/tex]

[tex]\mathbf{\theta = 4.75\ radians}[/tex]

Convert to degrees as follows:

[tex]\mathbf{\theta = 4.75 \times \frac{180}{\pi}}[/tex]

[tex]\mathbf{\theta = 4.75 \times \frac{180}{3.142}}[/tex]

[tex]\mathbf{\theta = 272.16^o}[/tex]

Hence, the central angle is: [tex]\mathbf{4.75\ rad}[/tex] or [tex]\mathbf{272.16^o}[/tex]

Read more about length of arcs at:

https://brainly.com/question/15832640

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