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4 years ago

6y+ 6m - 2y + m + 12

Mathematics

2 answers:

sasho [114]4 years ago

6 0

4y+7m+12 (combine like terms: 6y-2y=4y, 6m+m=7m, result is: 4y+7m+12.).

polet [3.4K]4 years ago

4 0

If simplified, It's 4y + 7m + 12

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Evaluate the expression (3-2i)(3-2i) and write the result in the form a+bi ,where a is the real part of your answer and bis the

Maslowich

Answer:

a = 5, b = -12

Step-by-step explanation:

By basic factoring, you get 9 - 12i + $4i^2$ . Since $i^2$ is simply -1, the expression evaluates to 9 - 12i - 4, which is 5 - 12i.

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2 years ago

A manufacturer claims that fewer than 6% of its fax machines are defective. to test this claim, he selects a random sample of 97

AfilCa [17]

Let P be the population proportion, p be the sample proportion, n be the sample size.

A manufacturer claims that fewer than 6% of its fax machines are defective. It means P=0.06

Sample size n=97 and sample proportion p=0.05

The hypothesis to be tested is

H0: P ≥ 0.06 V/s Ha: P < 0.06

Here the hypothesis for testing population proportion we use z test statistics. Z test statistics is give by

Z = $\frac{p -p_{0}}{\sqrt{p_{0}(1-p_{0})/n}}$

Where p =sample proportion = 0.05

p0 = hypothesized proportion value =0.06

Using given values into test statistics we get

Z = $\frac{0.05 -0.06}{\sqrt{0.06(1-0.06)/97}}$

Z = -0.41

The p-value for left tailed alternative hypothesis is given by

P-value = P(z < z cal)

where zcal = Z test statistics value

Here zcal = -0.41

P-value = P(Z < -0.41)

Using z score table to find probability below z=-0.41

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P-value for testing the given claim is 0.3409

3 0

4 years ago

I need to know 7 8 9 10 11

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I think #7 is 40
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4 years ago

Krystal went To the carry out to purchase some items. She purchased four bottles of pop, three candy bars, and two bags of chips

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Answer:

Equation to determine crystals total bill (T) =(7.7+2x) - 1.50

Step-by-step explanation:

Given:

Number of bottles of pop purchased = 4

Number of candy bars purchased = 3

Number of chips bag purchased = 2

Cost of per bottle of pop = $1.25

Cost of per candy bar = $.90

Cost of the coupon = $1.50

To Find :

Equation to determine crystals total bill (T) given the cost of one bag of chips = ?

Solution:

Let the cost of one chips bag be x

Cost of 4 bottles of pop

=> $4 \times 1.25$

=>$ 5

Cost of 3 candy bars

=> $3 \times 0.90$

=>$ 2.7

Cost of 2 bags of chips

=> $2 \times x$

=>$ 2x

Now the total cost of the bill is

T = 5 + 2.7+ 2x

T =7.7+2x

Also Krystal had a coupon worth $1.50, the cost of the ticket will be

T =(7.7+2x) - 1.50

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GREYUIT [131]

Answer:

Step-by-step explanation:

5x8 enlarged to 10x16

10 is 5x2 and 16 is 8x2

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