Mathematics High School

Expand 2(c + 4).
Please help me

Answers

Answer 1

Answer:

2c+8

Step-by-step explanation:

this is because we are using 2 to open up the brackets. You will multiply c by 2 and 4 by 2.

Related Questions

(-)*(-)*(-)
a. +
b. -
c. 0

pls help

Answers

Answer:

b. -

Step-by-step explanation:

Note the rules of multiply/dividing negative numbers:

1) A positive number multiplied/divided by a positive number = a positive answer.

2) A positive number multiplied/divided by a negative number (and vice versa) = a negative answer.

3) A negative number multiplied/divided by a negative number = a positive answer.

~

Note the question.

The first part is multiplying a negative number with a negative number:

(-) * (-) = (+) , based on the rules given above.

Next, multiply the next number. Note that it is also a negative number:

(+) * (-) = (-) , based on the rules given above.

b. - is your answer.

~

A semicircle was cut from a square sheet of blue construction paper . What is the area of the remaining blue construction paper as seen in the figure? (Do not include units)

Answers

Answer:

60.73cm

Step-by-step explanation:

10cm=diameter so raduis of circle=5cm

area of full circle=78.5398...

area of semicircle=39.2699...

area of square=100cm

100-39.26990817=60.73 cm

You have 100 dollars and you give away 25% each week. How many weeks would it take to run out?

Answers

Answer:

1 day

Step-by-step explanation:

day if you're like mee because I will buy chips cards for games

Answer:

4

Step-by-step explanation:

﹛(-4,3), (-2,-1), (0,0), (1,4), (2,6)﹜Given this set, what is the domain?

Answers

The domain is the set of all the values of x . The range is the set of all the values of y .
Domain : {-4 , -2 ,0 ,1 }
Range : { 3 , -1 , 0, 4 }

The alphabet of the Bum - Bum tribe consists of 4 letters. A word in its language is any sequence of 4 letters, with at least 2 letters being the same. How many words are there in the language of the Bum - Bum tribe?

Answers

the answer is 4 words if not 6

The ratio of white mice to gray mice for sale at the pet store is 5 to 2. There are 24 grey mice. What is the total number of mice for sale at the pet store?
F.62 H.210

G.150 J.84

Answers

Answer:

the ratio of black mice*

Step-by-step explanation:

Anyone help with this one???

Answers

Answer:

translation left 5 units

(x + 13y) + 8y=
:\ This is so confusing

Answers

Answer:

x+21 y

Step-by-step explanation:


+
2
1

hope i could help you :)

The perimeter of the triangle is 30 cm.
The perimeter of the rectangle is also 30 cm.​

Answers

Answer:

The perimeter of the triangle is 30 cm.

The perimeter of the rectangle is also 30 cm.

Step-by-step explanation:

The perimeter of the triangle is 30 cm.

The perimeter of the rectangle is also 30 cm.

Solve for u. m/u^2+r=−k−y

Answers

9514 1404 393

Answer:

  u = ±√(-m/(k+r+y))

Step-by-step explanation:

Subtract r, rearrange, then take the square root.

  [tex]\dfrac{m}{u^2}+r=-k-y \qquad\text{given}\\\\ \dfrac{m}{u^2}=-k-y-r\\\\-\dfrac{m}{k+r+y}=u^2\\\\ \boxed{u=\pm\sqrt{-\dfrac{m}{k+r+y}}}[/tex]

Answer: +/- sqrt(m/-k-y-r)

Step-by-step explanation:

Jason has 34 raspberry scones and 51 blackberry scones. He wants to make as many identical bags of scones as possible. Each bag should have an equal number of raspberry scones and an equal number of blackberry scones. What is the greatest number of bags Jason can​ fill? Explain how you know.

Answers

Answer: The greatest number of bags Jason can​ fill = 17

Step-by-step explanation:

Given: Jason has 34 raspberry scones and 51 blackberry scones.

To make identical bags of scones as possible.

Each bag should have an equal number of raspberry scones and an equal number of blackberry scones.

The greatest number of bags Jason can​ fill = Greatest common divisor of 3

and 51.

= 17     [Since 34 = 2 x 17 , 51 = 3 x 17]

Hence, the greatest number of bags Jason can​ fill = 17

Determine how to translate triangle A'B'C' to triangle ABC.

Answers

Answer:

im not sure how to explain it, but you should look up your workbook on slader then type in the page of the homework you're doing and the answers are right there

Step-by-step explanation:

Simplify: (3x-4)+(-2x+8).

Answers

Answer:

Step-by-step explanation:

x+4

Ramona is counting the posts between mile markers on the highway. In 1 mile, she counts 33 posts. If the posts are evenly spaced, how many feet apart are they? (1 mile = 5,280 feet)

Answers

Answer:

160 feet

Step-by-step explanation:

In order to solve this, we need to realize that the mile is being divided into 33 equal parts. Therefore our operation should look like this:

5,280 (the number of feet in 1 mile) / 33

5,280/33=160

The posts are 160 feet apart from each other.

HTH :)

Which of the following graphs represents the equation y- 4 = 3(x - 1)?

A. Graph A
B. Graph B
C. Graph C
D. Graph D

Answers

The graph of the equation is graph (D)

The equation of the graph is given as:

[tex]y- 4 = 3(x - 1)[/tex]

Add 4 to both sides of the equation

[tex]y = 3(x - 1) + 4[/tex]

Apply the distributive property

[tex]y = 3x - 3+ 4[/tex]

Evaluate the sum of -3 and 4

[tex]y = 3x +1[/tex]

The above means that, the graph of [tex]y- 4 = 3(x - 1)[/tex] has a slope of 3 and a y-intercept of 1

Hence, the graph of the equation is graph (D)

Read more about linear functions at:

https://brainly.com/question/15602982

rationalize root 3+root 5​

Answers

Answer:

- 2

Step-by-step explanation:

To rationalise multiply by its conjugate.

The conjugate of [tex]\sqrt{3}[/tex] + [tex]\sqrt{5}[/tex] is [tex]\sqrt{3}[/tex] - [tex]\sqrt{5}[/tex] then

([tex]\sqrt{3}[/tex] + [tex]\sqrt{5}[/tex] )([tex]\sqrt{3}[/tex] - [tex]\sqrt{5}[/tex] ) ← expand using FOIL

= ([tex]\sqrt{3}[/tex] )² - [tex]\sqrt{15}[/tex] + [tex]\sqrt{15}[/tex] - ([tex]\sqrt{5}[/tex] )²

= 3 - 5

= - 2

(6x - 4) - ( 2x + 8) is equivalent to
What is the answer to this ?

Answers

Answer:

4x - 13

Step-by-step explanation:

( 6x - 4 ) - ( 2x + 8 )

The "-" sign outside of the parenthesis is equivalent to "-", hence one can distribute the "-" sign

( 6x - 4 ) - ( 2x + 8 )

6x - 4 - 2x - 8

Combine like terms

6x - 5 - 2x - 8

4x - 13

Write a function rule for "the output is six times the input".

Answers

Answer:

y=6x

Step-by-step explanation:

In this function, the input is the variable x. The problem says that the output is six times the input, so we will need to multiply the input by 6. To write this as a function, set the output (y) equal to 6 times the input (x):

how far does the train go in 100 minutes

Answers

Answer: It definitely depends  

Step-by-step explanation:

Which is the graph of the system of inequalities

Answers

Answer:

A

Step-by-step explanation:

Try testing each graph by picking a point on the shaded region or none shaded region.

-1/5 and 6= y-intercept

4/5 and 2= slope

You may notice that it is in y-intercept form. So to find where the shaded region goes, test a coordinate and apply it to the equation, if the answer is false, than half of the line is not where the shaded region goes.

Deja, Ryan, and Jamie walked in the same race on Friday. their race was 1/4 the length of Alex's 20-kilometers race on Sunday. How many more meters did Alex than Deja and Jamie walked together.


1 kilometer=1,000 meters

Answers

Answer:

Their race was 1/4 the length of Alex's 20km = 20 x 1/4 = 5 km

Alex than Deja and Jamie walked together : 20 - 5 = 15 km = 15000 m

Step-by-step explanation:

PLZ ANSWER QUICK IT WILL HELP A LOT!

Answers

Answer: the Y-axis

Step-by-step explanation:

y is swapped To negative

Solve the system by substitution. -8.x --- 3y -2x + 1 = y Submit Answer​

Answers

Step-by-step explanation:

Tom works 12 hours a day at a café. He is paid $8 an hour. How much
money is he paid in 10 days?

Answers

Answer:

Tom will be paid $140 in 10 days

Step-by-step explanation:

Answer:

Tom will be paid 960$ is 10 days

I need help solving these two questions
3x-5x=0
x-5x=-10

Answers

Answer:

x=0 and x=5/2

Step-by-step explanation:

Combine like terms.

-2x=0

x=0/-2

x=0

-4x=-10

x=-10/-4

x=5/2

So who knows the right answer?

Answers

Answer:

48

Step-by-step explanation:

just divid 25 into 1200

Pls help me I’m not that smart at fractions

Answers

Answer:

Step-by-step explanation:

5/8

you need to add all numerators, same denominator

5/8 because the denominator is the same, so you can just add 1+1+1+1+1 and put that over 8 (confusing)

The drawing below represents a 22-foot ladder with its base placed 10 feet from the bottom of a vertical wall.

which value is the best estimate for x?


a.24.3

b.63.0

c.27.0

d.65.6

Answers

Answer:

63°

Step-by-step explanation:

To get the value of x we will use the Pythagoras theorem

hyp² = opp²+adj²

Given

hyp is the length of the ladder = 22ft

Adjacent is the distance from the base of the ladder to the wall = 10ft

Angle of elevation = x

Using the SOH CAH TOA identity

Cos theta = adjacent/hypotenuse

Cos x = 10/22

Cos x = 5/11

x = arccos(5/11)

x = arccos(0.4545)

x = 62.96°

Hence the best estimate of x is 63°

Please help me asap!!

Answers

Answer:

the second one ( - 3, -6)

Step-by-step explanation:

I used the method of substitution

Answer:

(-3, -6)

Step-by-step explanation:

Which of the following are integer solutions to the inequality below?

-3 < x ≤ 4

Answers

It is not equal to -3 but can be equal to 4 so
-2,-1,0,1,2,3,4
Let me know if you have any questions
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