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4 years ago

What is 3 multiply by 3/5

Mathematics

2 answers:

Alecsey [184]4 years ago

6 0

3×5 is 15
.................

natta225 [31]4 years ago

3 0

1.8. One way to figure this out is to divide 3 by 5 (the denominator) which is equal to 0.6, then multiplying that by 3 (the numerator) which would be 1.8.

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Suppose the spring in this spring-powered rifle has a spring constant of k = 1,000 N/m. How much work can it do in accelerating

Andre45 [30]

W equals 1/2 *k*x square, so the answer is 5 J

5 0

3 years ago

Antonia is factoring the polynomial, which has four terms. 7x3 – 21x2 + 5x – 15 7x2(x – 3) + 5(x –3) Which is the completely fac

Vikentia [17]

Factoring out (x-3), we get (7x^2+5) (x-3). That is your answer, I hope this helps :).

8 0

3 years ago

Read 2 more answers

The number of bacteria in a refrigerated food product is given by N ( T ) = 22 T 2 − 123 T + 40 , 6 < T < 36 , where T is

antoniya [11.8K]

Answer:

$N(T(t)) = 1408t^2 - 385.6t - 105.52$

Time for bacteria count reaching 8019: t = 2.543 hours

Step-by-step explanation:

To find the composite function N(T(t)), we just need to use the value of T(t) for each T in the function N(T). So we have that:

$N(T(t)) = 22 * (8t + 1.7)^2 - 123 * (8t + 1.7) + 40$

$N(T(t)) = 22 * (64t^2 + 27.2t + 2.89) - 984t - 209.1 + 40$

$N(T(t)) = 1408t^2 + 598.4t + 63.58 - 984t - 169.1$

$N(T(t)) = 1408t^2 - 385.6t - 105.52$

Now, to find the time when the bacteria count reaches 8019, we just need to use N(T(t)) = 8019 and then find the value of t:

$8019 = 1408t^2 - 385.6t - 105.52$

$1408t^2 - 385.6t - 8124.52 = 0$

Solving this quadratic equation, we have that t = 2.543 hours, so that is the time needed to the bacteria count reaching 8019.

4 0

4 years ago

Mark for Review

ioda

Answer:

12 seconds

Step-by-step explanation:

Given

$y = -2.5x + 30$

Required

Determine the time taken to reach the ground

For the paper to reach the ground, y = 0

So, we have:

$y = -2.5x + 30$

$0 = -2.5x + 30$

Collect Like Terms

$2.5x +0 = 30$

$2.5x = 30$

Divide through by 2.5

$2.5x/2.5 = 30/2.5$

$x = 30/2.5$

$x = 12$

<em>Hence:</em>

<em>Time taken is 12 seconds</em>

5 0

4 years ago

The segment below is dilated by a scale factor of 22 to form I ′J ′ What is the measure of I ′J ′ ?

WARRIOR [948]

Answer:

Step-by-step explanation:

When dilating a segment by a scale factor, we multiply the original length by the scale factor to find the length.

2*9 = 18

3 0

2 years ago