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Please help me solve this + explain your answer :)

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Answer:

A. 4z

Step-by-step explanation:

The expressions is equivalent to z + z+z + z would be 4z. so option A is correct.

Those expressions who might look different but their simplified forms are same expressions are called equivalent expressions.

Given expression

z + z+z + z

All the terms are like terms, by adding all of them

z + z+z + z

= 4z

Thus, The expressions is equivalent to z + z+z + z would be 4z. so option A is correct.

Learn more about factorization of quadratic expression here:

https://brainly.com/question/26675692

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Answer:

maybe 9

Step-by-step explanation:

Answer:

Step-by-step explanation:

Cross multiply the givens

3b = 4a         Divide both sides by 4

3b/4 = a        Now divide by b

3/4 = a/b

This can be written as

3:4 :: a:b

Answer:

B and C

Step-by-step explanation:

[tex]56 - ( {3}^{3} + 13) = 16[/tex]

For A

[tex] \frac{92 - (12 + 16)}{4} = 16 \\ [/tex]

For B

[tex] {6}^{2} \div 4 + 5 = 14[/tex]

For C

[tex](6 \times 7) + 3 + 2 = 47[/tex]

For D

[tex]19 \times 4 - {8}^{2} + 4 = 16[/tex]

Here, B and C have not same value

Answer:

it is 6

Step-by-step explanation:

its a reverse diamond

Answer:

7b-389

Step-by-step explanation:

This is the polynomial in standard form. Hope this helps!

Answer:

92

Step-by-step explanation:

for each sale, the number of tokens increases by a pattern from 1 sale to 2, the tokens increase by 7. next by 9. next by 11. if this pattern continues, by eaight sales the number of tokens will be 92 tokens

5 -41 tokens

6 - 56 tokens

7 - 73 tokens

8 - 92 tokens

this is my best guess at the problem, if you aren\t working with sequences then this is probably wrong

Answer:

i got 178

Step-by-step explanation:

Answer:

its x=16 :)))

Answer:

 y = 5x - 7

Step-by-step explanation:

(3 , 8) ; slope(m) = 5

Equation of the line: y - y₁ = m( x- x₁)

y - 8 = 5(x - 3)

y -8 = 5x - 5*3

y-8 = 5x - 15

   y = 5x - 15 +8

  y = 5x - 7

Answer: A closed, two-dimensional or flat figure

Step-by-step explanation:

Answer:

Different plane shapes have different attributes, such as the numbers of sides or corners. There are many kinds of plane shapes, but these are the most known squares, rectangles, circles, triangles, and octagons.

Step-by-step explanation:

Answer:

b.

P = R minus 10; $15 million

Step-by-step explanation:

Answer:

-106, -104, -102

Step-by-step explanation:

Answer:

one fifth

Step-by-step explanation:

kso3o3orkckcncmdkdodp9d

Answer:

4/35

Step-by-step explanation:

4   *   1    = 4

7   *   5    = 35

Answer:

50.2 cm^2

Step-by-step explanation:

Formula for the area of a circle: [tex]\pi r^{2}[/tex]

Radius of bigger circle = 5

Area of big circle = 25 * 3.14 = 78.5

Radius of smaller circle = 3

Area of small circle = 9 * 3.14 = 28.26

Now, we subtract:

78.5 - 28.26 = 50.24 <--- Because we have to round to the nearest tenth, the final answer is 50.2

Answer:

50.2 cm²

Step-by-step explanation:

Find the area of both circles and subtract them.

Answer:

6.25

Step-by-step explanation:

75 divided by 12

hope this helps

Answer:

payment in advance is prepayments-Asset

Not yet paid is Accruals.. -Liability..

i didn't get your question though??kindly reframe it.

Answer:

im pretty sure its C

Step-by-step explanation:

Answer:

Step-by-step explanation:

i think its embryonic

Answer:

The first one

Step-by-step explanation:

short side: x=5

long side: x=5

hypotenues: 5·2=10

Sides of a 30°-60°-90° triangle:

short side: x

long side: [tex]x\sqrt{3}[/tex]

hypotenues: 2x

Answer:

O A = Bx H and A = L + L + W + W.

Step-by-step explanation:

Answer:

10.5 cm

Step-by-step explanation:

area of parallelogram = Bh

12 x 7 = AB x 8

AB = 12x7 / 8 = 21/2 = 10.5

Answer:

I hope it works for u

Step-by-step explanation:

if u want for week 2 than its

Please Brain-list if its help-full

Answer:

It is the 3rd graph

Step-by-step explanation:

It is the only one that shows a porpotional relationship.

Answer:

sry mate.....

............

Answer:

$1.24 per pair

Step-by-step explanation:

1) $74.40 ÷ 60 = $1.24

8 dollars

Step-by-step explanation:

without rounding it is $7.52 but you would round that to 8

Answer:

250 of 65% acid

100 gallons of 30% acid

Really sorry if this is incorrect, I had this question on my Lesson 16 test, and I don't know if it's correct or not...

Following are the calculation to the given question:

Assuming

x=The number of gallons of pure acid [tex](50\%)[/tex]

y = The number of liters of pure acid at [tex](80\%)[/tex] a concentration

[tex]\to x+y = 350[/tex]

The total quantity of gallons of each of the two types of pure acids............(1)

[tex]\to 0.65x+0.30y = 0.55(x+y)[/tex]

the mixture's acidity

[tex]\to 0.65x+0.30y = 0.55(350)\\\\\to 0.65x+0.30y = 192.5 ..........(2)[/tex]

So we have two equations and two variables to work with.

[tex]\to x+y = 350\\\\\to 0.65x+0.30y = 192[/tex]

multiply the first equation by [tex]0.30[/tex]

[tex]\to 0.30x+0.30y = 105\\\\\to 0.65x+0.30y = 192[/tex]

Subtract the second equation from the first

[tex]\to 0.35x = 87\\\\\to x = 248. 57 \approx 248 \ gallons\\\\ \to y = 350-248 = 102\ gallons\\\\[/tex]

As a result, we'll need 248 gallons of 65% pure acid and 102 gallons of 30% pure acid.

Learn more:

brainly.com/question/16352400

Answer:

5%

Step-by-step explanation:

20/400

10/200

5/100

5%