2 years ago

There were 442 students at Deerlake Middle School who voted on a theme for the spring

Mathematics

1 answer:

koban [17]2 years ago

6 0

Answer:

581

mark me as brainliest plz

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I need help finding the quotients

Nutka1998 [239]

Answer:

24÷-6=-4

-15÷0.3=-50

-4+-20=-24

2/5÷3/4=0.5333

Step-by-step explanation:

Thats all i can get sorry :<

I hope it helps and hope its right

8 0

2 years ago

Which measurement is the best estimate for the mass of a refrigerator?

andrew11 [14]

C 90 kg A and B are to small

7 0

2 years ago

Read 2 more answers

30. Find the value of expression 20m2 + 30m + 40 when a)m = -3 b)m= - 4 c) m = 3

Temka [501]

Answer:

di you mean m² when you say m2 or not?

4 0

2 years ago

Which of the following equations could be used to solve the given equation?

kvasek [131]

Well, lets first start off with combining like terms.

9x + 26 + 7x - 17 = 2x + (-3x) + 5x

9x + 7x + will give you 16x, and 26 - 17 will give you 9. Therefore, the first part of the equation is 16x + 9.

On the other side, you can combine all three terms (2x + 5x - 3x), which will give you 4x.

Using the above steps, you can figure that the answer is 16x +9 = 4x

8 0

2 years ago

A trebuchet launches a projectile from a hilltop 30 feet above ground level on a parabolic arc at a velocity of 40 feet per seco

Gennadij [26K]

Answer:

3.1 seconds

Step-by-step explanation:

The time it will hit the ground is when the <em>height is equal to 0</em>. So we plug in 0 in h and solve the quadratic equation for t.

$-16t^2+40t+30=0$

We will use the quadratic formula [ $t=\frac{-b+-\sqrt{b^2-4ac} }{2a}$ ] to solve this.

a is -16

b is 40 , and

c is 30.

plugging these into the formula we get:

$t=\frac{-b+-\sqrt{b^2-4ac} }{2a}\\t=\frac{-40+-\sqrt{(40)^2-4(-16)(30)} }{2(-16)}\\t=\frac{-40+-\sqrt{3520} }{-32}\\t=-0.6,3.1$

Since time cannot be negative, we take t = 3.1 as the value

So it will take 3.1 seconds to hit the ground (target)

7 0

3 years ago