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3 years ago

A 9V battery is attached to a hand generator. What prediction best explains what will happen and why?

Mathematics

1 answer:

insens350 [35]3 years ago

3 0

A hand generator it most likely will provide power to perform wok more efficiently.

<h3>A hand generator and a 9v battery</h3>

Generally, A hand generator is a portable device that use energy to do work or increase efficiency of work done.

Therefore,if a 9v battery( a battery is defined as a source of electric power) is attached to a hand generator it most likely will provide power to perform wok more efficiently

For more information on work

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The image of parallelogram PQRS after a reflection across Line W Y is parallelogram P'Q'R'S'.

Luden [163]

Answer:

the answer is 6

Step-by-step explanation:

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3 years ago

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If the base angles of a trapezoid are congruent, what can be said about the diagonals of the trapezoid

Schach [20]

9514 1404 393

Answer:

the diagonals are congruent

Step-by-step explanation:

If the base angles of a trapezoid are congruent, it is an isosceles trapezoid. It will be symmetrical about its center line. Each half of the trapezoid is identical (mirror image) to the other half. The diagonals are the same length.

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3 years ago

On field day, Danny captured 6 times as many flags as Jon during a game of capture the flag. Together, they captured 14 flags. H

Monica [59]

Answer:

The number of flags captured by Danny was 12

The number of flags captured by Jon was 2

Step-by-step explanation:

Let

x-----> number of flags captured by Danny

y---> number of flags captured by Jon

we know that

$x+y=14$ ------> equation A

$x=6y$ -----> equation B

substitute equation B in equation A and solve for y

$6y+y=14$

$7y=14$

$y=2\ flags$

Find the value of x

$x=6(2)=12\ flags$

therefore

The number of flags captured by Danny was 12

The number of flags captured by Jon was 2

5 0

3 years ago

Calculate the number of subsets and the number of proper subsets for the set.

arlik [135]

A set of n elements has 2ⁿ subsets. One of these subsets is the set itself, so this set would have 2ⁿ - 1 <em>proper</em> subsets.

The given set has 4 elements, so it has 2⁴ = 16 subsets and 2⁴ - 1 = 15 proper subsets.

Just to illustrate the claim, we have

• subsets of size 0 (1 of these):

{ } (empty set)

• subsets of size 1 (4 of these):

{1/6}, {1/7}, {1/8}, {1/9}

• subsets of size 2 (6 of these):

{1/6, 1/7}, {1/6, 1/8}, {1/6, 1/9}, {1/7, 1/8}, {1/7, 1/9}, {1/8, 1/9}

• subsets of size 3 (4 of these):

{1/6, 1/7, 1/8}, {1/6, 1/7, 1/9}, {1/6, 1/8, 1/9}, {1/7, 1/8, 1/9}

• subsets of size 4 (1 of these):

{1/6, 1/7, 1/8, 1/9}

and the last one is the only subset that is not a proper subset, because that subset = the set.

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2 years ago

An insurance company sets up a statistical test with a null hypothesis that the average time for processing a claim is 7 days, a

belka [17]

Answer:

C. Type I error

Step-by-step explanation:

Hello!

The hypothesis tested was:

H₀: μ = 7

H₁: μ > 7

The decision was taken: Reject the null hypothesis.

Reminder:

There are four decisions you can take when you make a hypothesis test.

1. Reject the null hypothesis when the hypothesis is false (This is a correct decision)

2. Reject the null hypothesis when the hypothesis is true (This decision is also known as Type I error)

3. Fail to reject the null hypothesis when the hypothesis is true (This is a correct decision)

4. Fail to reject the null hypothesis when the hypothesis is false (This decision is also known as Type II error)

Since they concluded, that the average process time vas greater than 7 days, when it was 7 days, they rejected the null hypothesis when it was true. This is a Type I error and its associated probability is α.

I hope it helps!

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3 years ago