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3 years ago

Grade 8 math PLEASE HELP

Mathematics

1 answer:

jonny [76]3 years ago

8 0

Answer:

Step-by-step explanation:

If each input value leads to only one output value, classify the relationship as a function.

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Sam is the perpendicular bisectors of tr. angle tsr=120. Find angle str

Gemiola [76]

30 degrees due to the fact that all triangles interior angles add up to 180 degrees and there are two other angles meaning it is 30 degrees

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3 years ago

The population of pine bluff is 6791 and is decreasing at a rate of 7 per year.Write the linear equation that models this situat

Anna11 [10]

Answer:

y= 6971 -7 x OR y = -7x + 6971

Step-by-step explanation:

the 6971 is the original number you started with, you are now decreasing by 7, so you use the value of -7. The x is the number of years that pass by, so the variable x affects the number 7 because it says decreases by 7 per year. The x does not go with 6971 as that number doesn't get directly affected.

3 0

3 years ago

Read 2 more answers

Given the polynomial function below, find F(-1).

mrs_skeptik [129]

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$f(x) = - {x}^{3} - {x}^{2} + 1$

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$f( - 1) = - ({ - 1})^{3} - ({ - 1})^{2} + 1 \\$

$f( - 1) = - ( - 1) - (1) + 1$

$f( - 1) = 1 - 1 + 1$

$f( - 1) = 2 - 1$

$f( - 1) = 1$

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The correct answer is (( D )) .

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3 0

3 years ago

Cost of boots: $99.99 Markup: 9% What is the new cost

mote1985 [20]

Answer:

The new cost is $108.98

Step-by-step explanation:

Mark up is the amount that is added to cost price of a product for profit.

Given

Cost price of boots = C = $99.99

Mark up = 9%

First of all we will calculate markup and then add it to the cost price of boots to find the new cost.

$Mark\ up = M = 9\%\ of\ 99.99\\= 0.09*99.99\\=\$8.99$

The new cost will be:

$C_n = Cost\ price + mark\ up\\C_n = 99.99+8.99\\= 108.98$

The new cost is $108.98

6 0

2 years ago

Presents of equal size are in a boxes each with dimensions of 10 inches length, 4 inches width, and 2 inches height. How many pr

Maurinko [17]

Answer:

You can make 7.5 gifts presents (or just 7)

Step-by-step explanation:

First I calculated the area of 1 box, which is 80 inches squared. Then I just divided the 600 square inches with the 80 inches. 600/80= 7.5. Therefore, you can make 7 presents (since you cannot wrap half of a present (0.5))

Hope this helps !

4 0

2 years ago