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3 years ago

How do you solve these equations?

Mathematics

1 answer:

Mekhanik [1.2K]3 years ago

4 0

Just enter it into a calculator.
a) -0.8315
b) 0.8315
c) 0.5556
d) 0.8315

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Factor. to 4m6 – 16p10

Nonamiya [84]

Answer:

4 ( m⁶ - 4p¹⁰ )

Step-by-step explanation:

4m⁶ = 4 * m⁶

16p¹⁰= 4 * 4 * p¹⁰

Common factor = 4

4m⁶ - 16p¹⁰ = 4 ( m⁶ - 4p¹⁰ )

3 0

3 years ago

The college student spent 10 times as much on Pizza as he did on Laundry. If his laundry and pizza bills for the year were $495,

Solnce55 [7]

The college student spends 45 dollars on laundry.

To find this you have to divide 495, by 11. This is because the question states "the college student spends 10 times more on pizza than laundry", which means the cost of the laundry (l) is added to the cost of pizza (10p). Dividing 495 by 11, you get 45.

As I stated earlier, the cost of laundry is added to the cost of pizza. 45 * 10 is 450. 450 + 45 = 495. Thus making 45 the answer.

I hope this helps!

4 0

3 years ago

The International Coffee Association has reported the mean daily coffee consumption for U.S. residents as 1.65 cups. Assume that

Harman [31]

Answer:

The calculated value t = 1.3788 < 2.0262 at 0.05 level of significance

the null hypothesis is accepted

There is no significant difference between their counterparts across the nation

Step-by-step explanation:

Step(i):-

Given that the mean of the U.S residents = 1.65

Given that the size of the sample 'n' = 38

Mean of the sample = 1.84

Given that the standard deviation of the sample (S) = 0.85

Step(ii):-

Null hypothesis:H₀:

There is no significant difference between their counterparts across the nation

Alternative Hypothesis:-H₁:

There is a significant difference between their counterparts across the nation

Test statistic

$t = \frac{x^{-} -mean}{\frac{S}{\sqrt{n} } }$

$t = \frac{1.84-1.65}{\frac{0.85}{\sqrt{38} } }$

t = 1.3788

Degrees of freedom

ν = n-1 = 38-1 = 37

t₀.₀₅ ,₃₇ = 2.0262

The calculated value t = 1.3788 < 2.0262 at 0.05 level of significance

Null hypothesis is accepted

Final answer:-

There is no significant difference between their counterparts across the nation.

5 0

3 years ago

Find the area of a floor that measures 12.75 ft. by 10.5 ft

Reika [66]

Answer:

A =133.875 ft^2

Step-by-step explanation:

A = l*w

The length is 12.75 and the width 10.5

A = 12.75 * 10.5

A =133.875 ft^2

3 0

3 years ago

Read 2 more answers

Caroline needs to jog 30.5 miles over the next seven days to train for a race she plans to jog for. 25 miles each day what is th

Sloan [31]

Answer:

0.75

Step-by-step explanation:

If she plans to jog 4.25 miles each day then 4.25 * 7 would equal 29.75. This is the first answer.

In order to get the second answer, we need to subtract 30.5 (What she needs to jog) over 29.75 (how much she is planned to job over the next 7 days). So 30.5 - 29.75 = 0.75

Here is the math I did to get 0.75:

= 30.5 - 29.75

= 30.5 + -29.75

= 0.75 (Answer)

4 0

3 years ago