3 years ago

Evaluate -12+ |4-9z| if Z=8

Mathematics

2 answers:

Deffense [45]3 years ago

8 0

Answer:

Step-by-step explanation:

alexandr402 [8]3 years ago

3 0

Answer:

-12+l4-72l

Step-by-step explanation: i hope this helps

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it takes Elizabeth 15 minutes to walk 5 blocks. at that rate, how many minutes will it take her to walk 30 blocks?

slavikrds [6]

90 minutes or 1 1/2 Hours.

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3 years ago

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Write the equation of the line given the slope and the y-intercept. Type your answer in the box without skipping any spaces. m =

Over [174]

The equation of a line given the slope and y-intercept is given as;

m(x-x₁) = (y-y₁)

∴equation of line with m = 2 and y-intercept = (0,3) =

2(x - 0) = (y - 3)

= 2x - 0 = y - 3

making y the subject obtains y = 2x + 3.

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3 years ago

Factor completely.<br> (X^2+ x – 6)(2x^2 + 4x) =<br> What’s the answer

lyudmila [28]

Answer:

(X^2+x−6)⋅2x(x+2

Step-by-step explanation:

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3 years ago

A factory inspector found 3 defective microchips out of a total of 750

Y_Kistochka [10]

Answer:

Option B

Step-by-step explanation:

Proportion of number of defective pieces to the number of microchips in a batch can be represented by the ratio = $\frac{\text{Number of microchips not in good condition}}{\text{Total numbers of microchips}}$

If 3 microchips are defective in a batch of 750 microchips,

Proportion = $\frac{3}{750}$

If 'x' chips are defective in a batch of 10000 microchips,

Proportion = $\frac{x}{10000}$

If both the proportions are equal,

$\frac{3}{750}=\frac{x}{10000}$

Therefore, Option B will be the answer.

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3 years ago

Which expressions are equivalent to 4^−2 ⋅7 ^-2?

Andrews [41]

Answer:

We can have several equivalents.

It can be 1/784, 28^(-2), or 1/ (28^2)

Step-by-step explanation:

4^(-2) * 7^(-2) = (4*7)^(-2) = 28^(-2)

or 1 / (28^2) is another equivalent.

4^(-2) * 7^(-2) = 28^(-2)

4^(-2) * 7^(-2) = = 1/784

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3 years ago