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3 years ago

Is 17 heartbeats in 15 seconds a unit rate? Why or why not?

1 answer:

8 0

No, because it is not per second. You would have to simplify to per one second for it to be a unit rate. Hope it helps! :)

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A person standing on a second floor balcony drops keys to a friend standing below the balcony. The keys are dropped from a heigh

Lostsunrise [7]

Answer:

sqrt(3/8) = t

.61237 = t

Step-by-step explanation:

h(t)=−16t^2+10

Let h(t) = 4

4 =−16t^2+10

Subtract 10 from each side

4-10 =−16t^2+10-10

-6 = -16 t^2

Divide by -16

-6/-16 = t^2

3/8 = t^2

Take the square root of each side

sqrt(3/8) = sqrt(t^2)

sqrt(3/8) = t

.61237 = t

We only take the positive since time is not negative

6 0

3 years ago

Plslslsllslslslslslalalalsllsls helpppppp

dybincka [34]

Answer:

You use the trigonometric ratio (see below for explanation & answer)

Step-by-step explanation:

$tan(50)=\frac{630}{d}$

$d=\frac{630}{tan(50)}$

$d= 528.6$

So, 528.6 is your answer. Have a great day! Hope I helped!

3 0

3 years ago

5 x 3 = 3 x 5 is a true statement. Which multiplication property is this an example of

topjm [15]

Answer:

Commutative

Step-by-step explanation:

Multiplication Property is if AxB=BxA.

Identity would be like 1x7=7

Commutative would be your problem. 5x3=3x5

Zero would be like 0x7=0

Associative would be like (3x5)x2=3x(5x2)

Distributive would be like 7x3=(5x3)+(2x3)

3 0

3 years ago

What is the value of the expression below when y=5 4y2-7y-6

KatRina [158]

Answer and Step-by-step explanation:

Let's plug 5 in for y.

$4(5)^{2} - 7(5) - 6\\\\\\\\4(25) - 35 - 6\\\\\\100 - 35 - 6 = 59\\\\\\$

The value of $4y^{2} - 7y - 6$ when y is equal to 5 is 59.

#teamtrees #PAW (Plant And Water)

7 0

3 years ago

Read 2 more answers

When driving the peregrine falcon can reach speed of up to 175 miles per hour

zepelin [54]

thank you for the information
but where is the question??????

3 0

3 years ago