Use the distributive property to simplify the following expression: 7(4 - 3x)

1.28 - 3x
2.7x
3.28 - 21x
4.21x

Answers

Answer 1

Answer: 3. 28-21x

Step-by-step explanation: distribute the 7 to both 4 and -3x

7 x 4= 28

7 x -3x = -21x

28-21x

Hope this helps (^_^)

Answer 2

Answer:

28 - 21x

Step-by-step explanation:

7(4 - 3x)

7×4 = 28

7× -3x = -21x


Related Questions

Anderson won $10000 in a Lotto competition.
He banked, then he gave his wife 60% of the remainder.
He then shared what was left between his two sons Jimmy and Prince, giving Jimmy three
times as much as Prince. Calculate Jimmy's share.​

Answers

Answer:

jimmy got 30,000

Step-by-step explanation:

10,000

the wife got 60% = 60,000

jimmy got 3x prince = 30,000

prince = 10,000

A survey found that 60% of highschool freshmen have Internet access at home. Of the 750 freshmen at one high school, about how many would be expected to have Internet access at home?

Answers

Answer:

450 freshman would have internet access

Answer:

450

Step-by-step explanation:

750 student is 100% of highschool freshman so

let x be how may would be expected

x/750=60%/100%

750*60=100*x

45000=100x

x=450

Johnny wants to know how many students in his school enjoy watching science programs on TV. He poses this question to all 26 students in his science class and finds that 75% of his classmates enjoy watching science programs on TV. He claims that 75% of the school's student population would be expected to enjoy watching science programs on TV. Is Johnny making a valid inference about this population? (5 points)

a
Yes, it is a valid inference because his classmates make up a random sample of the students in the school

b
Yes, it is a valid inference because he asked all 26 students in his science class

c
No, it is not a valid inference because he asked all 26 students in his science class instead of taking a sample from his math class

d
No, it is not a valid inference because his classmates do not make up a random sample of the students in the school

Answers

Answer: d. No, it is not a valid inference because his classmates do not make up a random sample of the students in the school

Step-by-step explanation: this i because there is a possible bias present in his population

Hope this helps!

1/2a - 4
Pls help
Meeeeee
Eeeeeeee

Answers

1/2a - 4
Add 4 to both sides.
1/2a = 4
Divide both sides by 1/2.
a = 8

The sphere has a radius of 12 meters, What is the volume of the sphere

Answers

[tex]\Large{\underline{\mathcal{Given: }}}[/tex]

radius = 12m

volume =

[tex]\Large{\underline{\mathcal{solution :}}}[/tex]

volume of a sphere:

4/3 πr³ cu.units

4/3 × 22/7 × 12 × 12 × 12

7214 m³

Find the size of the angle 3x.

3x=

Answers

Answer:

60 degrees

Step-by-step explanation:

a straight line is 180 degrees

2x= 120 degrees

x=60 degrees

Answer:

The value of x is 60°

Step-by-step explanation:

For a given Straight Line

We know that, The straight angle is an angle equal to 180°

So,

3x = 180

Divide by 3 from both side

3x/3 = 180/3

x = 60°

Thus, The value of x is 60°

-TheUnknownScientist

2. The length of a rectangle is 18 centimeters and the width is 6 centimeters. A similar rectangle
has a width of 2 centimeters. What is the length of the second rectangle? (Sketch a picture)

Answers

Answer:

6

Step-by-step explanation:

I am unable to sketch a picture for you but I will do my best to help you understand. We know that our length of the first rectangle is 18 cm and the width is 6 cm. At the moment we don't need 18 so we'll put that to the side for now and focus on the width. We understand that in a second similar rectangle, the width is 2 centimeters. in order to find our scale, we must divide the larger width by the smaller width. This means we will divide 6cm by 2 cm. 6/2=3  This means that we also divide 18 by 3 since the similar rectangle is smaller and we are figuring out the missing side. After dividing 18 by 3 we should get an answer of 6. 18/3=6  Which means that our similar rectangle has a length of 6 cm and a width of 2 cm.

I also want to mention that similar rectangles are not the same rectangle however you can think of them as enlargerd/shrunk versions of the original rectangle. I hope this helps.

Can I please have some help with this I am stumped

Answers

9514 1404 393

Answer:

  29 in²

Step-by-step explanation:

No need to be stumped. The dashed lines divide the figure into three recognizable forms, for which you have area formulas.

The area of a rectangle or parallelogram is given by the formula ...

  A = bh . . . . .  where b represents the base, and h represents the height.

__

The top part of the figure is a square. That is, it is a rectangle with its base equal to its height. In this figure, both are labeled 2 in.

  A = (2 in)(2 in) = 4 in² . . . . . . area of top square

The middle part of the figure is a parallelogram. Its base is the same as the base of the rectangle below it. Its height is labeled 3 in.

  A = (5 in)(3 in) = 15 in² . . . . . . area of middle parallelogram

The bottom part of the figure is a rectangle with a height of 2 in. Its base is the same length we used for the parallelogram: 5 in.

  A = (5 in)(2 in) = 10 in²

The area of the figure is the sum of the areas of its parts:

  figure area = 4 in² + 15 in² + 10 in² = 29 in²

The area of the figure is 29 in².

PLEASE HELPP I HAVE A TIMER. which equation represents the graphed function?
a.y=4x-2
b.y=-4x-2
c.y=1/4x-2
d.-1/4x-2

Answers

Answer:

C. y = 1/4x -2

Please mark as brainliest if answer is right

Have a great day, be safe and healthy  

Thank u  

XD  

Devante buys 1/1/4 pounds of cashews 7 ounces of almonds and 3/4 pounds of pecans how much do the nuts weight in

Answers

Answer: [tex]39\ \text{Ounces}[/tex]

Step-by-step explanation:

Given

The amount of cashews is [tex]1\frac{1}{4}\ \text{Pounds}[/tex]

Amount of almonds [tex]7\ \text{ounces}[/tex]

The amount of pecans is [tex]\frac{3}{4}\ \text{Pounds}[/tex]

We know, [tex]1\ \text{Pound}=16\ \text{Ounces}[/tex]

Converting pounds to ounces and adding them

[tex]\Rightarrow 1\dfrac{1}{4}\times 16+7+\dfrac{3}{4}\times 16\\\\\Rightarrow \dfrac{5}{4}\times 16+7+3\times 4\\\\\Rightarrow 20+7+12=39\ \text{ounces}\ or\ \dfrac{39}{16}\ \text{Pounds}[/tex]

Thus, the nuts weigh [tex]39\ \text{Ounces}[/tex]

hii! help asap. i’ll give brainliest thanks!

Answers

Answer:

B

Step-by-step explanation:

Answer:

It's acceleration will change

Step-by-step explanation:

The question states that only the force on the object increased, that will cause it to go alot faster than before due to the increase in force.

Carter's checking account had a balance
of --$12.75. He deposited a check for
$22.40 into his account. What is Carter's
account balance now?
A -$35.15
B. -$9.65
C. $9.65
D. $35.15

Answers

Answer:

A or D is tge correct awnser

ASAP!!!!!!!!!!!!!!!!

Answers

I believe C because 1840+14%x2which would be the two years = 2355.20

PLEASE HELP QUICK!! I need help with the first problem

Answers

Answer:

I need help too it's so hard

simplify………………………. look at the picture for the question thanks

Answers

Answer:

C) 2y^6/x^8

Step-by-step explanation:

Mathtype won't work on here, sorry.

Hope this helped! :)

A recipe that serves 4 people uses 3 onions. How many onions are needed to serve 20 people?

Answers

Answer:

15 onions are required.

Find the volume of the following figure using unit cubes.

Answers

Answer:

       64 units³

Step-by-step explanation:

2 units × 4 units × 8 units = 64 units³

A dice is rolled. What is the probability that a 4 is rolled?
A) 1/2
B) 1/3
C) 2/3
D 1/6
This is for my high school final exam so please answer fast

Answers

Answer:

I think 1/6

Step-by-step explanation:

There are 6 sides on a dice and only one 4. So then you have a 1/6 chance of rolling 4.

hope this help!

Answer:

1/6

Step-by-step explanation:

There are 6 numbers on a die 1,2,3,4,5, and 6. If one number was picked out it would be 1/6

Find the value of x.
101 x +29

Answers

Answer:

x = 50

Step-by-step explanation:

101 + (x + 29) = 180

130 + x = 180

x = 180 - 130

x = 50

Answer:

50°

Step-by-step explanation:

in order ro find x you would need to solve for 101° ( x + 29) = 180° if you replace x with 50 then you equation would be true!

The heights of students are normally distributed with a mean of 64 inches and a standard deviation of 3 inches. Find the area under the curve for heights between 58 and 78 inches
(no links please!)

Answers

Answer:

0.9772 or 97.72%

Step-by-step explanation:

P(58<X<78) = normalcdf(58,78,64,3) = 0.9772484056 = 0.9772

The area under the curve would be 0.9772 or 97.72%

WILL MARK BRAINLIEST HELP ASAP ASAP

Answers

Answer:

Step-by-step explanation:

A

simplify the expression - 1/2 (- 5/6 + 1/3)

Answers

Answer: 1/4

Step-by-step explanation:

Answer:

1/4 would be your answer.

Step-by-step explanation:

Hope this helps!, and if this Is wrong someone correct me.

Find the area of a circle with a diameter of 36 mm. Use 3.14 for
area: about
2
mm

Answers

Answer:

Area  =  4073.1429 mm²

Step-by-step explanation:

Input Data :

Radius = 36 mm

Objective :

Find the area of the circle.

Solution :

Area = πr2

= 3.14 x (36)2

= 3.14 x (1296)

Area = 4073.1429 mm²

Which of the following values is not in the solution set of the inequality 7x − 5 > 29?
A. 4
B. 5
C. 6
D. 7

Answers

Answer:

A.4

Step-by-step explanation:

hello please help i’ll give brainliest

Answers

Answer:

C i think

Step-by-step explanation:

Once an action is caused, a reaction immediatley happens

It’s D they are equal but act in opposite direction

4x^2-16=x^2+32
Using reverse PEMDAS

Answers

Answer:

x = ±4 (x = 4 and x = -4)

Step-by-step explanation:

4x²-16 = x²+32

3x²-16 = 32

3x² = 48

x² = 16

x = ±4

Therefore, x = 4 and x = -4

Can someone please explain how to go the answers for this

Answers

Answer:

A=3, B=4, C=-5

Step-by-step explanation:

So A represents the amplitude, which is the distance between the midline (C), the middle of the graph, and the maximum (or minimum). B is the distance of the period of the graph. In this case, we see that the midline is C=-5 because that is the halfway point of the sine function. We also see that the period distance is B=5-1=4, so our period would be 2π/4 or π/2. Our amplitude would be A=3 because |a|=|-5-(-2)|=|-5+2|=|-3|=3. Observe the graph to see this visually.

I need help with geometry

Answers

B. 4
6x-1=23
+1 +1
6x=24
X=4

Answer:

B. x = 4

Step-by-step explanation:

The two triangles have two congruent sides and a congruent angle. You can say ΔBAC ≅ ΔEDF because of SAS. Corresponding parts of congruent triangles are congruent, so you can say:

BC = EF

And we can substitute their values:

6x - 1 = 23

6x = 24

x = 4

For the following right triangle, find the side length .

Answers

Answer:

x = 25

Step-by-step explanation:

Using the formula a²+b²=c², you can easily find out the hypotenuse of the triangle (which is the long side of it, and is the x in this problem.)

If we substitute the side lengths for the question in a²+b²=c², you'll get

20²+15²=x²

Simplifying the numbers and squaring them, you get

400+225=625²

Since you want the value of the x side, you'll need to root 625.

√625=25

Therefore, x = 25

Answer:

x = 25

Step-by-step explanation:

To find the side lengths of a right triangle, we can use the Pythagorean Theorem, a² + b² = c². a and b are the legs, and c is the hypotenuse, the longest side. In this figure, x is the hypotenuse, c.

Plug in our values for a and b and solve for x.

[tex]a^2+b^2=c^2[/tex]

[tex]20^2+15^2=c^2[/tex]

[tex]400+225=c^2[/tex]

[tex]625=c^2[/tex]

[tex]\sqrt{625}[/tex] = [tex]\sqrt{c^2}[/tex]

[tex]25=c[/tex]

c, or x is equal to 25. The missing sidelength is 25 units.

Good luck ^^

−10(9c−7c+8)−8c
pls help

Answers

Simplify the expression: -108c
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