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3 years ago

Someone help me with this ASAP

Mathematics

2 answers:

faltersainse [42]3 years ago

8 0

I’m learning this to lol I think the answer is c because the absolute value is always positive right ? And the opposite of -0.89 would be positive 0.89 !

Naddik [55]3 years ago

3 0

I really think it’s C .

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A drop of oil makes a circular ring in a water puddle. The radius of the oil ring expands at 1.5 cm per second. If r(t)=1.5t and

Readme [11.4K]

Answer:

$a(t) =n(0.25t^2)$

Step-by-step explanation:

Given

$r(t) = 0.5t$

$a(r) = nr^2$

Required

Determine the area in terms of time

From the question, we have:

$r(t) = 0.5t$ -> radius per time

and

$a(r) = nr^2$ --> area from radius

The interpretation of the question is to find the composite function: a(t)

If $a(r) = nr^2$ , and $r(t) = 0.5t$ , the

Substitute 0.5t for r

$a(t) =n(0.5t)^2$

$a(t) =n*0.25t^2$

$a(t) =n(0.25t^2)$

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3 years ago

Lauren has 4 3/8 cups of flour.Each batch of her pancake batter needs 1 1/4 cups of flour.How many batches of her batter can she

GuDViN [60]

She can make 3 batches. 3 batches will take 3 3/4 cups. If she made 4 it would take 5 cups

5 0

3 years ago

Please help asap 30 pts

motikmotik

Answer:

20 or D.

Step-by-step explanation:

You simply plug in the values given for a and b:

$4(5)+7(-3)+3(5)-2(-3) = 20-21+15+6=20$

So, your answer is 20.

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4 years ago

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Winnie needs to spend $120 on two kinds of fancy cakes:

Ainat [17]

Answer:

Winnie needs to buy 6 slices of Coffee cake.

Step-by-step explanation:

12 * 5= $60 (chocolate cake)

120 - 60= 60

since we know the coffee cake costs $10(per slice) we do:

60/ $10= 6 slices of coffee cake.

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3 years ago

Karen is taking a standardized test. The more questions she answers correctly, the greater her final test score will be.

svp [43]

Step-by-step explanation:

independent is questions answered correct

dependent is final test sore.

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3 years ago

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