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3 years ago

Circle the reason for each of the following manipulations used to simplify the product (8x^2) (3x^7) ?

Mathematics

1 answer:

gayaneshka [121]3 years ago

3 0

Answer:

fgd

Step-by-step explanation:

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Which answers are equivalent to Q + p + Q + p + Q

NikAS [45]

Answer:

Step-by-step explanation:

$Q+p+Q+p+Q\\\\\text{combine like terms}\\\\=(Q+Q+Q)+(p+p)=3Q+2p$

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3 years ago

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A contractor has submitted bids on three state jobs: an office building, a theater, and a parking garage. State rules do not all

german

Answer:

The following are the answer to this question:

Step-by-step explanation:

In the given question the numeric value is missing which is defined in the attached file please fine it.

Calculating the probability of the distribution for x:

$\to f(x) = 0.19\ for \ x=14\\\\\to f(x) = 0.29 \ for\ x=7\\\\\to f(x) = 0.38\ for \ x=1\\\\\to f(x)=0.14 \ for \ x=0\\$

The formula for calculating the mean value:

$\bold{ E(X)= x \times f(x)}$

$=14 \times 0.19+7 \times 0.29+1 \times 0.38+0\times 0.14\\\\=2.66 + 2.03+0.38+ 0\\\\=5.07$

$\bold{E(X^2) = x^2 \times f(x)}$

$=14^2 \times 0.19+7^2 \times 0.29+1^2 \times 0.38+0^2 \times 0.14 \\\\=196 \times 0.19+ 49 \times 0.29+1 \times 0.38+0 \times 0.14\\\\= 37.24+ 14.21+ 0.38+0 \\\\=51.83$

use formula for calculating the Variance:

$\to \bold{\text{Variance}= E(X^2) -[E(X)]^2}$

$= 51.83 - (5.07)^2\\\\= 51.83 - 25.70\\\\=26.13$

calculating the value of standard deivation:

Standard Deivation (SD) = $\sqrt{Variance}$

$= \sqrt{26.13} \\\\=5.111$

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3 years ago

Paul earned $72,000 last year. If the first $30,000 is taxed at 10% and income above that is taxed at 19%,

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25%.......................................

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Can you answer this?

Pavlova-9 [17]

If m =2 insert m so 4+4-3+5

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PLS I HAVE 10 min TO FINISH I NEED HELP WITH MATH

Delvig [45]

Answer:

B is the answer

Step-by-step explanation:

I worked it out

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3 years ago