HELP ME PLEASE! | Khan Academy | ILL GIVE BRANLIEST

HELP ME PLEASE! | Khan Academy | ILL GIVE BRANLIEST

Answers

Answer 1

Answer:

(A) -8c + 6

Step-by-step explanation:

[tex]2( - 6c + 3) + 4c \\ 2( - 6c) + 2(3) + 4c \\ - 12c + 6 + 4c \\ - 12c + 4c + 6 \\ - 8c + 6 \\


Related Questions

What number is 30% of 20? for 10 points and brainlist

Answers

Answer:

6

Step-by-step explanation:

20*.3=6.

30 percent turns into .3

You find one quarter, two dimes, and two nickels.

a. Write the dollar amount as a decimal.

Answers


The decimal form would be $0.45

Answer:

$0.55

Step-by-step explanation:

1 quarter is 25 cents

2 dimes is a total of 20 cents

2 nickels is a total of 10 cents

if you add all of it up 25+20+10 you get 55 cents but u need it in dollar amount so it would but $0.55 since u have less than a dollar.

(1 point)
7. The students in Mr. Collin's class used a surveyor's measuring device to find the angle from
their location to the top of a building. They also measured their distance from the bottom of the
building. The diagram shows the angle measure and the distance.
Building
To the nearest foot, what is the height of the building?
A. 239 ft
B. 154 ft
C. 67 ft
D. 33 ft

Answers

For this you are using tangent, opposite over adjacent. Tan64°= X/75.The 75 on the bottom means X is being divided by 75. So we multiple each side by 75 to get 75xtan64°= x. when you put that in a calculator you get 153.77 ft. Which is closer to 154, answer B

Cual es la simplificación de 72/64

Answers

9/8

Step-by-step explanation:

divides 72 por 8 que es 9, y 64 dividido entre 8 es 8 dando te 9/8.

(7 pts) A school has 400 feet of fencing to build a set of 3 athletic fields as shown below. What dimensions
should they use to build the largest possible athletic complex? Include appropriate units with your answer.
х

Answers

Answer:

Step-by-step explanation:

the side lengths are (400 - 4x)/2 = 200 - 2x

A = x(200 - 2x)

A = 200x - 2x²

Maximum area will occur when the derivative is set to zero.

dA/dx = 200 - 4x

0 = 200 - 4x

x = 200/4 = 50 ft

each field will be 50 x 33⅓ ft.

total area will be 5000 ft²

Which is not very big for a sports complex. I've owned houses with more floor space than that.

Factor the polynomial completely.
Q(x) = x^2 + 4x + 8

Answers

Answer:

Step-by-step explanation:

x²+4x+8

=x^2+4x+4-(-4)

=(x+2)²-(2 i)²

=(x+2+2i)(x+2-2i)

Help me with maths .

Answers

Answer:

Step-by-step explanation:

m x n / p + (-n) =5 X 8 / -2 + (-8) =-20-8=-28

Find the solution(s) of the system of equations.
y = –x2 + 2
y = x2 + 4x + 4

Answers

The answer would be B

Sales Revue • Total sales revenue was $120 million in Quarter 1 • Total sales revenue in Quarter 2 decreased by $10 million compared to Quarter 1. • Sales revenue in the East was $78 million in Quarter 1. • Sales revole in the West increased by $46 million from Quarter 1 to Quarter 2. Question Arrange the sales revenue lo 000.0001) by Quirtor und the percentages in the East and West regions

Answers

Do you want me to bring you a sandwich or something else if I can bring you something to eat or something else I can

The required revenue table categorized by Quarter (Qrt1 and Qrt 2) and Region (East and West) is :

____________Sale Revenue _____________

_______ Qrt 1 ___ Qrt1 %___ Qrt 2 ____ Qrt2 %

East ___ $78 _____65% ____$22 ______ 20%

West___ $42 _____ 35%____$88 ______ 80%

Sales Revenue ; Quarter 1 = $120 million Sale Revenue ; Quarter 2 = $120 - $10 = $110 million

Quarter 1 :

East = $78 million East percentage = (78/120) × 100% = 65%West = 120 - 78 = $42 million West percentage = 100% - 65% = 35%

Quarter 2 :

West = $42 + $46 = $88 million West percentage = (88/110) × 100% = 80%East = $110 - $88 = $22 million East percentage = 100% - 80% = 20%

Therefore, The distribution table which displays the revenue of the comp may is given above.

Learn more :https://brainly.com/question/1994652

solve and show steps :

Answers

9514 1404 393

Answer:

  -(5√7 +9√35)/380

Step-by-step explanation:

The denominator is made rational by multiplying numerator and denominator by the conjugate of the denominator.

  [tex]\dfrac{\sqrt{7}}{5-9\sqrt{5}}=\dfrac{\sqrt{7}}{5-9\sqrt{5}}\cdot\dfrac{5+9\sqrt{5}}{5+9\sqrt{5}}=\dfrac{5\sqrt{7}+9\sqrt{35}}{5^2-9^2\cdot5}=\boxed{-\dfrac{5\sqrt{7}+9\sqrt{35}}{380}}[/tex]

_____

Additional comment

This process takes advantage of the factoring of the difference of squares:

  a² -b² = (a -b)(a +b)

The method is used to eliminate complex numbers and square roots from denominators.

7/2(-4-2/3g)=
Pleas help meeeeeeudkxi

Answers

Answer:

-14g-84/6

Step-by-step explanation:

multiply the numbers

7/2 (-4-1 · 2/3g)

7/2(-4-2/3g)

combine multiplied terms into a signle fraction

7/2(-4-2/3g)

7/2(-4+-2g/3)

find common denominator

7/2(-4+-2g/3)

7/2(3(-4)/3+-2g/3)

combine fractions with common denominator

7/2(3(-4)/3+-2g/3)

7/2(3(-4)-2g/3)

multiply the numbers

7/2(3(-4)-2g/3)

7/2(-12-2g/3)

rearrange terms

7/2(-12-2g/3)

7/2(-2g-12/3)

combine multiplied terms into a single fraction

7/2 · -2g-12/3

7(-2g-12)/2 · 3

distribute

7(-2g-12)/2 · 3

-14g-84/2 · 3

multiply the numbers

-14-84/2 · 3

-14g-84/6

Topics: Precalculus, Matrix

Please assist with step by step
63 divided by 4

Answers

15.75 your welcome lol lol lol
Sorry about my sloppy handwriting. Hope this helps!

There are two solutions, for a quadratic equation that represents the relation between distance and
time.
One of the solutions is positive and the other is negative.
If the values are associated with time, then we will choose
A the positive and the negative
solutions.
B the positive solution.
C neither the positive nor the.
D the negative solution.

Answers

Answer:

B. The Positive Solution

Step-by-step explanation:

Because Time is a positive quantity

1,400,000
Would that be 1.4 x 10^5 or 1.4 x 10^6

Answers

Answer:

1.4 x 10^6

Step-by-step explanation:

Mason is turning 5 years old next Saturday. He has picked sidewalk chalk and a helium balloon to give to each of his friends who come to his party. His dad
has a coupon for $10 off of any purchase over $25 at the party supply store. If sidewalk chalk cost $3.29 and balloons cost $1 each, how much did his dad pay
for the favors for 10 of Mason's friends and 1 of each for Mason as well?
Mason's dad paid $36.19 for the chalk and the balloons
Mason's dad paid $47.19 for the chalk and balloons,
Mason's dad paid $37.19 for the chalk and balloons.
Mason's dad paid $26.19 for the chalk and the balloons.
Tytoth
012
NEXT
SAVE & EXIT
BI
614 PM
10/24/2021

Answers

Answer:

dad paid 37.19

Step-by-step explanation:

Use the point and the slope to graph each line. Write the equation of the line.
The line passes through point (4,0) and has slope 0.5.

Answers

Answer:

y=0.5x-4.5

Step-by-step explanation:

y=mx+b

Use the information provided to find b

0=0.5(4)+b

-2=b

Therefore, the equation goes down to...

y= 0.5x-2

Step-by-step explanation:

using the formula

m = y -y1/ x - x1

0.5 = y -0/x-4 (0.5 = 1/2)

1/2 = y/x -4

2y = x -4

divide both sides by 2

y = 1/2 ( x -4)

y = 1/2x - 2

y -1/2x = -2

Maximize P=6x+11y using simplex where
4x+y is less than/equal to 8
x+4y is less than/equal to 12
and x is greater than/equal to 0 , y is greater than/equal to 0

Answers

9514 1404 393

Answer:

  (x, y, P) = (4/3, 8/3, 112/3)

Step-by-step explanation:

In standard form, the constraints are all "less than or equal to", the variables are all non-negative, and the objective is maximization. This problem is presented in standard form.

  4x +y ≤ 8

  x +4y ≤ 12

  x ≥ 0; y ≥ 0

maximize P = 6x +11y

__

Now we add the slack variables to make the constraints be "equal to". These have a coefficient of +1, and they, too, are non-negative. Here, we'll use s and t as the slack variables.

  4x +y +s = 8

  x +4y +t = 12

These equations, together with the objective function, are combined in a matrix-like "tableau" in which each row is the set of coefficients in one of the equations. Here, the columns represent x, y, s, t, P and the constants. The equation for the objective function is negated so we're trying to minimize that, as well.

  [tex]\begin{array}{ccccc|c}4&1&1&0&0&8\\1&4&0&1&0&12\\-6&-11&0&0&1&0\end{array}[/tex]

Find the column with the most negative value on the bottom row. (Column 2) Divide the rightmost column by this column and find the smallest quotient. Here, the quotients are 8/1 = 8, and 12/4 = 3. The smallest is 3. This identifies the 4 in column 2, row 2 as the "pivot."

Now, row operations are performed to make the pivot be 1 and other values in the pivot column be zero. This gives a new tableau. For example, the new values in row 1 are ...

  4 -1/4, 1 -4/4, 1 -0/4, 0 -1/4, 0 -0/4, 8 -12/4

The new tableau is ...

  [tex]\begin{array}{ccccc|c}15/4&0&1&-1/4&0&5\\1/4&1&0&1/4&0&3\\-13/4&0&0&11/4&1&33\end{array}[/tex]

Now, the most negative number on the bottom row is in column 1, and the smallest quotient of column 6 and column 1 is in row 1. This makes 15/4 the "pivot". After the required row operations, the next tableau is ...

  [tex]\begin{array}{ccccc|c}1&0&4/15&-1/15&0&4/3\\0&1&-1/15&4/15&0&8/3\\0&0&13/15&38/15&1&112/3\end{array}[/tex]

All values in the last row are non-negative, so we are finished. The rightmost column tells us the values of x, y, P that are the solution to the problem

  (x, y, P) = (4/3, 8/3, 112/3)

__

The graphical solution confirms the Simplex solution.

HOW IS THE ANSWER 98 PLS HELP ASAP

Answers

Answer:

The answer is 98, here's how:

Step-by-step explanation:

Lets solve the numerator of the fraction first:

-[5.8 - 3(3.2)] =

-[5.8 - 9.6] =

-[-3.8] = 3.8               (Watch out for the double negative)

Now lets solve for the denominator :

(-0.2)² =

(-0.2)(-0.2) = 0.04

Lets simplify the fraction:

[tex]\frac{3.8}{0.04} = 95\\[/tex]

Let's add the 3 to 95:

95 + 3 = 98

-Chetan K

Step-by-step explanation:

[tex] \frac{ -[5.8 - 3(3.2)] }{{( - 0.2)}^{2} } + 3[/tex]

[tex]\frac{ -[5.8 -9.6] }{0.04 } + 3[/tex]

[tex]\frac{ -( - 3.8)}{0.04} + 3[/tex]

[tex]\frac{3.8}{0.04} + 3[/tex]

[tex] = 95 + 3[/tex]

[tex] = 98[/tex]

The product of three integers is -40. What could the three integers be?
Explain your thinking.

Answers

Answer:

10, 4, -1

Step-by-step explanation:

10×4=40

40×-1=-40

-40=-40

The three integers could be 8, -5, and 1.

What are integers?

A number without a decimal or fractional element is known as an integer, which can be both positive and negative, including zero.

Given that, the product of three integers is -40.

Since the product is negative, there should be at least one negative number.

The three numbers can be 8, -5, and 1.

8 × (-5) ×1 = -40

Hence, the three integers could be 8, -5, and 1.

Learn more about integers:

https://brainly.com/question/15276410

#SPJ2

Find the least common multiple of 15x^2 and 6x.

Answers

Answer:

30x^2

Step-by-step explanation:

The least common multiple (LCM) of two or more non-zero whole numbers is the smallest whole number that is divisible by each of those numbers. In other words, the LCM is the smallest number that all of the numbers divide into evenly.

3 apples for $0.59 unit rate

Answers

Answer:

around .20 per apple

Step-by-step explanation:

What is the probability of getting a 6 on the first roll, and a number less than five on the second roll

Answers

Answer:

1/9

Step-by-step explanation:

Probability of getting 6 = 1/6

Probability of getting less than 5 = 4/6 = 2/3

1/6 * 2/3 = 1/9

Product of (8.6×10^2)(3×10^2)in scientific notation

Answers

Answer:

in scientific notation = 2.58 × 10⁵

I hope I helped you^_^

Need help on this math problem

Answers

Answer:

the answer is 7 .......

ie .4^7

Answer:

4^7 is the answers for the question

Step-by-step explanation:

please mark me as brainlest

slope 1/4 y intercept-5

Answers

slope int form: y=1/4x-5

Solve y + 2∕7 < 1∕3.
Question 8 options:

A)

y > 13∕21

B)

y < 13∕21

C)

y < 1∕21

D)

y > –1∕21

Answers

Answer:

the answer is C y<1/21

Step-by-step explanation:

sorry if I did it wrong

Answer:

C) y< 1/21

Step-by-step explanation:

y+ 2/7 < 1/3

Subtract 2/7 from both sides.

y< 1/21

What is 80% of 34? I’ve been struggling with percents

Answers

Answer:

27.2

Step-by-step explanation:

34x.80=27.2

Answer:

27.2 is the 80 % of 34, so if 34 is the whole then mutiply by .8

p/2 - 10 = -12 show work

Answers

Answer:

Step-by-step explanation:

A wholesale list of a watch is $50. A dealer bought a shipment of watches at a discount of 20% and sold the watches at 10% above the whole sale list price. What was the profit on each watch ?

Answers

30 bucks was the profit for each one

How long will it take a train to travel 50 km at an average speed of 40m/s? Give your answer in minutes and seconds.

Answers

Answer:

20.8

if i'm wrong i'm rlly rlly sorry!!

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