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3 years ago

What is the answer for 2 9/10+3 3/7

Mathematics

1 answer:

krok68 [10]3 years ago

3 0

Answer:

6 23/70

Step-by-step explanation:

2 9/10 + 3 3/7 = 2 + 63/70 + 3 + 30/70 = 5 + 93/70 = 5 + 70/70 + 23/70 =

= 5 + 1 + 23/70 = 6 + 23/70 = 6 23/50

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Stephen kicked a ball inside. The equation that represents the height h in feet of the ball after being kicked and elapsed amoun

kodGreya [7K]

Answer:

The maximum height of the ball is: 14.0625ft

Step-by-step explanation:

The missing information is:

$h(t) = 30t - 16t^2$

Required

The maximum height the ball attained

First, we calculate the time to reach the maximum height.

For a function: $h(t) = at^2 + bt + c$

The maximum is: $t = \frac{-b}{2a}$

So, the maximum of $h(t) = 30t - 16t^2$ is:

$t = \frac{-b}{2a}$

Where

$a = -16; b = 30$

So:

$t = -\frac{30}{2*-16}$

$t = -\frac{30}{-32}$

$t = \frac{30}{32}$

$t = 0.9375$

The maximum height is then calculated as:

$h(t) = 30t - 16t^2$

$h(0.9375) = 30 * 0.9375- 16 * 0.9375^2$

$h(0.9375) = 28.125- 14.0625$

$h(0.9375) = 14.0625$

8 0

3 years ago

If a = 7, what is the value of the expression 2(a + 8)?

raketka [301]

Answer:

Step-by-step explanation:

Substitute X with 7 since X=7 so 2(7+8). Follow order of operations and 7+8=15 and the multiply 15 by 2 to get your final answer 30.

3 0

4 years ago

Triangle ABC is a right triangle.

Mashcka [7]

Answer:

x = 11.75

Step-by-step explanation:

m∠A + m∠B must equal 90

5x + 3x - 4 = 90

8x = 94

x = 11.75

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3 years ago

What is this answer (2)(−5)(−5)

Amiraneli [1.4K]

Answer:

Step-by-step explanation:

(-5)* (-5) = 25; as the negatives cancel out

25 * (2) = 50; arithmetic

6 0

2 years ago

Read 2 more answers

20 points if you help please!!!!!!!!!!!!

Genrish500 [490]

Answer:

C and E

Step-by-step explanation:

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3 years ago