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1 year ago

Does someone mind helping me with this problem? Thank you!

Mathematics

2 answers:

g100num [7]1 year ago

4 0

Answer:

area = 1/2 b*h

Step-by-step explanation:

1/2 * 6 * 8 = 24 ft^2

mixas84 [53]1 year ago

4 0

Answer:

24 square feet

Step-by-step explanation:

1/2 ×base× height

therefore 48÷2

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A research study was performed to determine if more than 30% of first-grade students at one school have entered Piaget’s concret

suter [353]

Answer:

Type I error

Step-by-step explanation:

A type I error occurs if the null hypothesis is rejected when it is actually true.

Type I Type II

Reject null when true Fail to reject null when not true

Null hypothesis: ∪ = 30%

Alternative hypothesis: ∪ > 30%

The researchers concluded that more than 30% of first-grade students at this school have entered the concrete operational stage of development and they rejected the null hypothesis.

However, a census actually found that in the population of all first graders at this school, only 28% have entered the concrete operational stage.

A type I error has been made because in actuality the null hypothesis was true but was rejected.

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3 years ago

Find the value of the lesser root of x2 - 6x + 8 = 0.

Ulleksa [173]

Answer:

Step-by-step explanation:

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2 years ago

What is the experimental and theoretical probability?

natka813 [3]

I believe ( i am not 100% certain) that the theoretical probability would be 1/2 or 300/600 and the experimental probability is 252/600, you may need to simplify that

6 0

2 years ago

Complete the following ratios

Lina20 [59]

3-1
6-2
9-3
18-18
I think those are the proper ratios

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2 years ago

How long would it take to double your principal in an account that pays 6.5% annual interest compounded continuously? round your

prisoha [69]

It would take 10.7 years.

The formula for continuously compounded interest is:
$A=Pe^{rt}$
where P is the principal, r is the interest rate as a decimal number, and t is the number of years.

Using our information we have:
$A=Pe^{0.065t}$

We want to know when it will double the principal; therefore we substitute 2P for A and solve for t:
$2P=Pe^{0.065t}$

Divide both sides by P:
$\frac{2P}{P}=\frac{Pe^{0.065t}}{P}
\\
\\2=e^{0.065t}$

Take the natural log, ln, of each side to "undo" e:
$\ln{2}=\ln{e^{0.065t}}
\\
\\0.6931471806=0.065t$

Divide both sides by 0.065:
$\frac{0.6931471806}{0.065}=\frac{0.065t}{0.065}
\\
\\10.7\approx t$

8 0

3 years ago

Read 2 more answers