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katen-ka-za [31]

3 years ago

10

Daniel's mom deposits $80 into his savings account for the year. Daniel decides to upgrade his game account which costs $7 per m

onth. How many months will Daniel be able to pay for his game account if his mom doesn't deposit any more money into his savings account?

1 answer:

blagie [28]3 years ago

3 0

Answer:

11.43

Step-by-step explanation:

80÷7= 11.428571428571428571428571428571

i hope this helps

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What are prime numbers ? And a list of examples ?

Helga [31]

Answer:

the number which is divisible only by itself and 1 is called prime number. For example; 2,3, 5, 7, 11 and others.

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3 years ago

A hypothesis will be used to test that a population mean equals 10 against the alternative that the population mean is more than

PilotLPTM [1.2K]

Answer:

A) 2.58

B) 1.96

C) 1.65

Step-by-step explanation:

A hypothesis used to test that

$H_o : \mu = 10$

against the alternatives $H1 : \mu$ not equal to 10

if null hypothesis is true, then distribution of test statics follow

$Zo = \frac{\bar x - \mu}{\frac{\sigma}{\sqrt{n}}}$

for two sided alternatives hypothesis $( H1: \mu \neq 7)$ , then P value is

$P = 2[1- \phi(\left | Zc \right |)]$ (1)

a)significance level $\alpha = 0.01$

from 1 eq we get

$\pi (\left | Zc \right |) = P(Zo$

Therefore $\left | Zc \right | = 2.58$ FROM Z TABLE

B) significance level $\alpha = 0.05$

from 1st equation we get

$\pi (\left | Zc \right |) = P(Zo < \left | Zc \right |) = 1 - \frac{0.05}{2} = 0.975$

Therefore $\left | Zc \right | = 1.96$ FROM Z TABLE

C) significance level $\alpha = 0.10$

from 1 eq we get

$\pi (\left | Zc \right |) = P(Zo$

Therefore $\left | Zc \right | = 1.65$ FROM Z TABLE

3 0

3 years ago

A friend has a 85% average before the final exam for a course. That score includes everything but the final, which counts for 15

Arlecino [84]

Answer:

87.25%

Step-by-step explanation:

Data given in the question

Before the final exam for a course, the average percentage is 85%

The counting percentage of the course grade is 15%

So by considering the above information, the best course grade your friend is

$= Average\ percentage\times remaining\ percentage + percentage\ value\times counting\ percentage$ = $0.85\times 0.85 + 100\%\times 0.15$

= 0.7225 + 15

= 87.25%

The remaining percentage is come from

= 100% - 15%

= 85%

Hence, the best course grade is 87.25%

7 0

3 years ago

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how did cotton production affect the Texas economy? We have to write it in our own words. You don't have to write the whole answ

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Answer:

it made Texas thrive because they were one of the leading cotton producers and made a lot of money off of it

4 0

3 years ago

Drag each tile to the correct location. The labels can be used more than once.

Pavel [41]

The degrees of each expression will be (x-9) degree 1, -4x²-6x+9 degree 2, x²-2x+9 degree 2, -3 degree 0, 3x-2 degree 1, 6x+2 degree 1 and 5 degree 0.

<h3>What is the degree of a polynomial?</h3>

The degree of the polynomial is defined as the highest power of the variable of the given polynomial or it is the maximum power of the polynomial.

The degree of the given expressions are shown as follows:-

(x-9) → degree 1,

(-4x²-6x+9) → degree 2,

(x²-2x+9) → degree 2,

(-3) → degree 0,

(3x-2) → degree 1,

(6x+2) → degree 1

(5) → degree 0.

Therefore the degrees of each expression will be (x-9) degree 1, -4x²-6x+9 degree 2, x²-2x+9 degree 2, -3 degree 0, 3x-2 degree 1, 6x+2 degree 1 and 5 degree 0.

To know more about degrees of the polynomial follow

brainly.com/question/1600696

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2 years ago