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3 years ago

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Which facts could be applied to simplify this expression?Ckeck all that apply 5x+3y+(-x)+6z

2 answers:

Rufina [12.5K]3 years ago

8 0

Answer:

A, C, and D

Step-by-step explanation:

I just took the test.

kenny6666 [7]3 years ago

4 0

Answer:

5x+3y+(-x)+6z

5x+(-x)+3y+6z

4x+3y+6z

The facts to apply is PEMDAS which is parenthesis,exponents, multiplication,division,addition and subtraction.

Then group like terms if there are any.

You finally get to a simplified answer if there are no like terms

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How to divide 0.4 ÷0.3

quester [9]

The answer is 1.33333333

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3 years ago

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If the jacket cost 45.00 and there is 25%off how much will the jacket cost now

Ivan

69. The jacket is said to have an original price of 45.00 dollars. Now, is was given a 25% off. Solve for the final cost of the jacket after the discount is applied. => 25% = 25% / 100% = 0.25 => 45.00 * .25 = 11.25 dollars is the discount. Now, let’s subtract the value of 25% by the original value. => 45 – 11.25 = 33.75 dollars. This is now the costs of the jacket after the discount is applied.

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3 years ago

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worty [1.4K]

this is the answer hope it helps you

4 0

3 years ago

ILL MARK BRAINLIEST ASAP IF CORRECT Write the equation of the quadratic function with roots -9 and and -3 and a vertex at (-6, -

Oduvanchick [21]

Answer:

see explanation

Step-by-step explanation:

The equation of a parabola in vertex form is

y = a(x - h)² + k

where (h. k) are the coordinates of the vertex and a is a multiplier

here (h, k) = (- 6, - 1), thus

y = a(x + 6)² - 1

To find a substitute one of the roots into the equation

Using (- 3, 0), then

0 = a(- 3 +6)² - 1

0 = 9a - 1 ( add 1 to both sides )

1 = 9a ( divide both sides by 9 )

a = $\frac{1}{9}$ , thus

y = $\frac{1}{9}$ (x + 6)² - 1 ← in vertex form

Expand factor and simplify

y = $\frac{1}{9}$ (x² + 12x + 36) - 1 ← distribute

y = $\frac{1}{9}$ x² + $\frac{4}{3}$ x + 4 - 1

= $\frac{1}{9}$ x² + $\frac{4}{3}$ x + 3 ← in standard form

8 0

3 years ago

1-58. Mr. Wright was making a table to figure out how much it costs to send a certain numt

Drupady [299]

A table of values can be used to represent variables that are directly proportional.

The complete table of proportions is:

$\left[\begin{array}{ccccccccc}Letters&10&2&[150 ]&7&1&500&[420] \\Cost&0.45&0.90&6.75&[0.315]&[0.045 ]&[22.5 ] & 18.90\end{array}\right]$

Given that

$\left[\begin{array}{ccccccccc}Letters&10&2&[\ ]&7&1&500&[\ ] \\Cost&0.45&0.90&6.75&[\ ]&[\ ]&[\ ] & 18.90\end{array}\right]$

Let:

<em /> $L \to$ <em> Letters</em>

<em /> $C \to$ <em> Cost</em>

<em />

Using proportional reasoning, we have:

$C = kL$

Where

<em /> $k \to$ <em> ratio of proportion</em>

For the first values of C and L, we have:

$C = kL$

$0.45 = k \times 10$

Divide both sides by 10

$k = 0.045$

So, the equation of proportion is:

$C = 0.045L$

<u>When C = 6.75, we have:</u>

$C = 0.045L$

$6.75 = 0.045L$

Solve for L

$L = \frac{6.75}{0.045}$

$L = 150$

<u>When L = 7, we have:</u>

$C = 0.045L$

$C = 0.045 \times 7$

$C = 0.315$

<u>When L = 1, we have:</u>

$C = 0.045L$

$C = 0.045 \times 1$

$C = 0.045$

<u>When L = 500, we have:</u>

$C =0.045L\\$

$C =0.045 \times 500$

$C =22.5$

<u>When C = 18.90, we have:</u>

$C = 0.045L$

$18.90 = 0.045L$

Solve for L

$L=\frac{18.90}{0.045}$

$L=420$

Hence, the complete table is:

$\left[\begin{array}{ccccccccc}Letters&10&2&[150 ]&7&1&500&[420] \\Cost&0.45&0.90&6.75&[0.315]&[0.045 ]&[22.5 ] & 18.90\end{array}\right]$

Read more about proportions at:

brainly.com/question/21126582

8 0

3 years ago