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3 years ago

Express the quantity in standard form. Include units in your answer.

Mathematics

2 answers:

ki77a [65]3 years ago

8 0

Answer:

i answer so you can give him branilest

Step-by-step explanation:

Naddika [18.5K]3 years ago

4 0

Answer:

1,988,920,000,000,000 exagrams

1.98892 x (10^15)

Raise 10 to the power of 15

1.98892 x 1000000000000000

Multiply

1.98892 by 1000000000000000

which is 1988920000000000 exagrams

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How to get the lateral area of a rectangular prism? Plz Explain

Keith_Richards [23]

If by lateral area you mean the total surface of the rectangle :

each side appears twice so the total area A will be

A=2(length*width+width*height+height*length)=16*8+8*4+4*16
A=224

If you meant lateral area as in the total area minus the top and bottom base:
A=2(width*height+height*length)=8*4+4*16=96

7 0

3 years ago

Solve the system of equations using substitution<br> 4x + 2y = 16<br> =−12+5

mario62 [17]

Answer:

$x=\frac{70}{11},\:y=\frac{20}{11}$

Step-by-step explanation:

$\begin{bmatrix}4x+2y=16y\\ y=-\frac{1}{2}x+5\end{bmatrix}$

$\mathrm{Substitute\:}y=-\frac{1}{2}x+5$

$\begin{bmatrix}4x+2\left(-\frac{1}{2}x+5\right)=16\left(-\frac{1}{2}x+5\right)\end{bmatrix}$

$Simplify$

$\begin{bmatrix}3x+10=16\left(-\frac{1}{2}x+5\right)\end{bmatrix}$

Isolate x for 3x+10=16(-1/2x+5): $x=\frac{70}{11}$

$\mathrm{For\:}y=-\frac{1}{2}x+5$

$\mathrm{Substitute\:}x=\frac{70}{11}$

$y=-\frac{1}{2}\cdot \frac{70}{11}+5$

$-\frac{1}{2}*\frac{70}{11}+5=\frac{20}{11}$

$y=\frac{20}{11}$

$\mathrm{The\:solutions\:to\:the\:system\:of\:equations\:are:}$

$x=\frac{70}{11},\:y=\frac{20}{11}$

3 0

3 years ago

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4 years ago

15 divided by 19.5. help, please.

user100 [1]

Answer:

Step-by-step explanation:

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8 0

3 years ago

Read 2 more answers

16. A clerk is marking up merchandise 28%

8090 [49]

Step-by-step explanation:

Original Price = $499

100% of something is the original price. when you mark something up, you are increasing the price. when the clerk marks up merchandise by 28%, they are increasing the price by 28%.

This means that the price is original + markup = 100 + 28 = 128%

Therefore, the retail price is

499 x 128% = $638.72

3 0

3 years ago