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Andrei [34K]
3 years ago
12

Can someone pls help me?

Mathematics
1 answer:
Ksivusya [100]3 years ago
4 0

Answer:

1. x= -66

2,  x=7

3. m= -28

4. t= -2.04 (I rounded)

5. x-(-2)=21

6. x(-2.5-3)=60

7. x≥40

Step-by-step explanation:


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Can someone show me how to do this I don’t just want the answer I need to know exactly how I can get the answer for my next prob
Lady bird [3.3K]
You have to place the numbers on the correct location of the number line. Let me guide you ☺

0.5 goes halfway between the 0 and 1. You will place a dot which is called a point halfway between 0 and 1.

-2.1 going to the left you will place a tiny dot that represents -2.10.

1 2/3 also known as 1.66 will be placed beteeen the 1 and 2. I think you are getting the picture now. right!

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8 0
3 years ago
An astronaut on the moon throws a baseball upward. The astronaut is 6 ft 6 in tall, and the initial velocity of the ball is 40 f
weqwewe [10]

Answer:

t = 0.293 s and 14.52 s

Step-by-step explanation:

The heights of the ball in feet is given by the equation as follows :

S = -2.7t^2+40t+6.5

Where t is the number of seconds after the ball was thrown.

We need to find is the ball 18 ft above the moon's surface.

Put S = 18 ft

-2.7t^2+40t+6.5=18\\\\-2.7t^2+40t=18-6.5\\\\-2.7t^2+40t-11.5=0

It is a quadratic equation. Its solution is given by :

t=\dfrac{-40+\sqrt{40^{2\ }-4\left(-2.7\right)\left(-11.5\right)}}{2\left(-2.7\right)},\dfrac{-40-\sqrt{40^{2\ }-4\left(-2.7\right)\left(-11.5\right)}}{2\left(-2.7\right)}\\\\t=0.293\ s,14.52\ s

So, the ball is at first 0.293 s and then 14.52 s above the Moon's surface.

8 0
3 years ago
Solve pls brainliest
oee [108]

Answer:

mixed no. 51/10

Improper fraction 5/1/10

3 0
2 years ago
Can someone help me with these questions plz
larisa [96]
I need more imformation
7 0
3 years ago
If y varies directly as the square root of x and y = 8 when x = 36, find the value of y when x = 144. y =
Wittaler [7]

Answer:

y=32

Step-by-step explanation:

cross multiply

36/4 *144/y

144*8/36

=1152/36

y=32

8 0
3 years ago
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