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3 years ago

kristen brought 2 candy bars for 1.29 each and a soda for 1.99 .she had to pay 0.38 in tax how much was her bill

Mathematics

2 answers:

scoundrel [369]3 years ago

4 0

I think 4.95 not sure though.

Nadusha1986 [10]3 years ago

3 0

The bill was $4.95 for the things they bought.

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Three-fourths of the voters supported the bond measure. If there were

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Answer:

6000

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Divide top and bottom by the common factor.

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3 years ago

The integer whose product with (-1) is 22 is

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Answer:

-22

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3 years ago

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

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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:

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

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

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

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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) = $\sqrt{Variance}$

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3 years ago

If carla does 25 jumping jacks 3 times per day how many jumping jacks will she do in 7 days?

ryzh [129]

How many jumping jacks does carla do in one day?
carla does 25 jumping jacks 3 times per day

25 + 25 + 25 = 75 jumping jacks per day

carla does 75 jumping jacks per day, how many will she do in 7 days?

7 x 75 = 525

Carla will do 525 jumping jacks in 7 days

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3 years ago

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