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3 years ago

I need to know the answer to 3a

Mathematics

1 answer:

In-s [12.5K]3 years ago

6 0

6.

To find this, follow these steps:

a = 1/2bh

15 = 1/2 x 5 x h

First, multiply the left side of the equal sign by 2 to get rid of the 1/2.

After you do this, you should have this:

30 = 5h

Now, divide both sides by 5 to find your final answer for h which is 6.

Hope this helps!

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Please help, solve for x

madreJ [45]

Answer: x=12

First, you do 8 squared = 4(4+x)

Then, you distribute and becomes a two-step equation.

64=16+4x.

So x=12.

Hope it helps :) Brainliest?

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3 years ago

Noah was doing some homework and answer the following question 5.5• - 3/5 =

Naddika [18.5K]

Answer:

-33/10 or -3.3

Step-by-step explanation:

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3 years ago

Adam earns $13.72 each hour that he works.He work 9 hours each week how much does adam earn each week

TiliK225 [7]

Answer:

$123.48 per week

Step-by-step explanation:

$ = (13.72)(9)

Multiply:

$123.48

4 0

3 years ago

Find the distance between the following two points: (-4,10) and (-10, -1). Round to the nearest TENTH.

emmasim [6.3K]

Answer:

distance = 12.5

Step-by-step explanation:

Use the distance formula to find the distance between any two points

√[(x₂ - x₁)² + (y₂ - y₁)²]

Points: (-4, 10) and (-10, -1)

Step 1. Plug these points into the formula (where the first point indicates the firsts x and y coordinates and the second point indicates the seconds x and y coordinates)

√[(-10 - (-4))² + (-1 - 10)²]

Step 2. Subtract

√[6² + (-11)²]

Step 3. Simplify (exponents)

√[36 + 121]

Step 4. Add

√157

Step 5. Simplify (radical)

12.52

Step 6. Round to the nearest tenth

12.5

6 0

3 years ago

A criminologist has developed a questionnaire for predicting whether ateenager will become a delinquent. Scores on the questionn

Reika [66]

Answer:

Probability=0.8413

So option A is correct.

Step-by-step explanation:

In order to find the probability that the criminologist will classify all of them as delinquents, we will proceed as following:

We are required to find:

P(m>=75|m-N(80,5))

it can be written as:

1-P(m<75|m-N(80,5))

P(m<75|m-N(80,5)) can be solved as

Z=(75-80)/5

Z=-1

Probability = 1-Z(-1)

Fromm distribution table:

Probability=1-0.15866

Probability=0.8413

So option A is correct.

6 0

4 years ago