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OLga [1]
2 years ago
10

A rock was thrown upward into the air. The height, in meters, of the rock above the ground t seconds after being thrown can be d

etermined by the expression −4.9t2+30t +10. What is the meaning of the 10 in the expression?
Mathematics
1 answer:
leonid [27]2 years ago
5 0

Answedka

Step-by-step explanatio

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Answer the question right or I report you
zubka84 [21]

Answer:

3 ÷ 0.25

Step-by-step explanation:

There are three squares, so 3.

Each square is divided into four squares,

One square out of four squares is,

1 / 4 = 0.25

Therefore,

3 ÷ 0.25

3 0
3 years ago
Explain: What is the solution to this system of equations? <br><br> 2x+y=20 <br> 6x-5y=12
bazaltina [42]

Answer:

solution set is (x,y) = (7,6)

Step-by-step explanation:

solving by substitution method

2x +y=20--------------1

6x-5y=12---------------2

from equation 1, solve for y

2x+y=20

y= 20-2x------equation 3

adding value of y in equation 2

6x-5y=12

6x-5(20-2x)=12

6x-100+10x=12

16x= 12+100

16x= 112

x= 112/16

x=7

adding value of x in equation 3

y= 20-2x

y= 20- 2(7)

y=20-14

y=6

so solution set (x,y) = (7,6)

3 0
3 years ago
Someone please answer these
Ede4ka [16]

Answer:

JJKJHJKHKJHKJH

Step-by-step explanation:

3 0
3 years ago
Give the formula for the area of the following shapes. .
mamaluj [8]
Let's go shape by shape!

The area of a rectangle can be calculated as follows:

L * W = area where L = length and W = width

The area of a trapezoid can be calculated as follows:

\frac{( b_{1} +  b_{2})*H}{2} = area
where b1 and b2 = lengths of the base and H = height of the shape

The area of a parallelogram can be calculated as follows:

B * H = area where B = length of the base and H = height of the shape
3 0
3 years ago
<img src="https://tex.z-dn.net/?f=1-%20%5Cfrac%7Bx%7D%7B2%7D%20%5C%20%20%5Ctextgreater%20%5C%20%20-4" id="TexFormula1" title="1-
Nat2105 [25]

Answer:

x

Step-by-step explanation:

1 - \frac{x}{2} > -4

-\frac{x}{2} > -5

x

7 0
2 years ago
Read 2 more answers
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