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3 years ago

Sharon made a triangle park the scale is 1 meter equals 1unit what is the area in square meter

Mathematics

1 answer:

FinnZ [79.3K]3 years ago

3 0

Answer:

Step-by-step explanation:

1unit is equal to. .?

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Why is important to maintain an assessment’s validity, reliability, and equity in testing?

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Why is important to maintain an assessment’s validity, reliability, and equity in testing?

Answer: Reliability refers to the degree to which scores from a particular test are consistent from one use of the test to the next. ... Ultimately then, validity is of paramount importance because it refers to the degree to which a resulting score can be used to make meaningful and useful inferences about the test taker

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3 years ago

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A plumber charges $25 for a service call plus $50 per hour. Write an equation for the cost,C, shyer h hours of babysitting. What

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4 years ago

-1=5+x/6 step by step

Gnesinka [82]

Answer:

-1=(30+x)÷6

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3 years ago

Tamara invests $8000 in two different accounts. The first account has a simple interest rate of 3% and the second account has a

Paraphin [41]

Answer:

$3200 at 3%
$4800 at 2%

Step-by-step explanation:

Interest earned is proportional to the interest rate, so if the interest earned is the same, the amounts invested must be inversely proportional to the interest rates. That is, for the 3% and 2% accounts, the ratio of money invested is 2:3.

In other words, 2/5 of the money ($3200) was invested at 3%, and 3/5 of the money ($4800) was invested at 2%.

_____

If you need an equation, you can let x represent the amount invested at the highest rate. Then 8000-x is the amount invested at the lower rate. For the interest in the two accounts to be equal, we have ...

3%·x = 2%·(8000-x) . . . . . the amounts of interest earned are the same

3/2·x = 8000 -x . . . . . . . . divide by 2%

5/2·x = 8000 . . . . . . . . . . . add x and simplify

x = 8000·(2/5) = 3200 . . . multiply by the inverse of the x coefficient

8000-x = 8000 -3200 = 4800 . . . . the amount invested at the lower rate

Tamara invested $3200 in the 3% account and $4800 in the 2% account.

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She earned $96 in each account for the year.

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3 years ago

Display the set of data in a histogram.

Scrat [10]

Answer:

B (The second graph)

Step-by-step explanation:

The order of frequencies of the chart:

1, 13, 9, 8, 12 reference

The order of frequencies of the graphs:

1) 1, 13, 9, 12, 8 incorrect

2) 1, 13, 9, 8, 12 correct

3) 9, 13, 1, 8, 12 incorrect

4) 13, 1, 9, 8, 12 incorrect

Therefore, the second graph 'b', is correct!

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3 years ago