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Lyrx [107]
3 years ago
7

If the function rule is to multiply by 4, and an output value is 8, what is the input value?

Mathematics
1 answer:
Dmitrij [34]3 years ago
8 0

Answer:

d. 2

Step-by-step explanation:

if you have to find the input just do the output divided by the muliply by which gives you the input

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Please answer this multiple choice question CORRECTLY for 30 points and brainliest!!
JulijaS [17]

Solve the inequality for x:

5x - 3 ≤ 7x +7

Subtract 7x from each side:

-2x -3 ≤ 7

Add 3 to each side:

-2x ≤ 10

Divide both sides by -2, also when dividing  both sides of an inequality you flip the direction of the inequality sign:

x ≥ -5

The dot will be on -5, because the inequality includes equal to, the dot is solid and is greater than, the arrow will point to the right.

The correct answer is D.

4 0
3 years ago
Two points A (-2, 9) and B (4, 8) lie on a line l. (i) Find the slope of the line l. (2)marks (ii) Find the coordinates of the m
White raven [17]

Answer :

  • 1 (i).
  • slope \:  =  -  \frac{1}{6}
  • (ii).
  • midpoints \:  = (1 \:  \:  \frac{17}{2} )
  • (iii) .
  • distance \:  =  \sqrt{37}
  • 2(i).
  • slope \:  = 2
  • gradient \:  =  -  \frac{1}{2}
  • I Hope it helps :)

8 0
3 years ago
Suppose a baseball is thrown vertically upward from the ground with an initial velocity of Subscript[v, 0] ft/s. Its height abov
Zina [86]

Answer:

90.5

Step-by-step explanation:

Velocity is a time-derivative of displacement or the height, in this case.

s(t)=-16t^2+v_0t

v(t) = -32t+v_0

At maximum height, the velocity is 0 and the height is 128.

Substitute these values into both equations above,

0 = -32t+v_0

t=\dfrac{v_0}{32}

From the first equation,

128 = -16t^2 + v_0t

Substitute for t.

128 = -16(\dfrac{v_0}{32})^2 + v_0\times\dfrac{v_0}{32}

128 = -v_0^2/64 + v_0^2/32

128=\dfrac{v_0^2}{64}

v_0^2=8192

v_0=64\sqrt{2}=90.5

5 0
3 years ago
Can Someone Answer this if you know it, Thank You :))
FromTheMoon [43]
Note that A of a circle  is   A = pi*r^2.

Here, we use                   A = 3.14*r^2.

We are able to solve this for r^2:    r^2 = A / 3.14

If A = 1964 square units, then r^2 = (1964 sq units) / 3.14, or about 625 sq units, so that r is about 25 units.  This would be the largest possible radius.

f A = 1810 square units, then r^2 = (1810 sq units) / 3.14, or about 576 sq units, so that r is about 24 units.  This would be the smallest possible radius.

The radius would be between 24 and 25 units long (answer)
4 0
3 years ago
of 30 students , 1/3 play sports. of those who play sports , 2/5 play soccor. how many students play soccor.
Mekhanik [1.2K]

Answer:

4 play soccer.

Step-by-step explanation:

(1/3 * 2/5) * 30

(2/15) * 30

(4/30) * 30

4

6 0
3 years ago
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