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klasskru [66]
3 years ago
8

Solve 5w^2+25=115, Where w is a real number.

Mathematics
1 answer:
MArishka [77]3 years ago
4 0

Answer:

w=+/-4.24 or whatever could be either since its squared

Step-by-step explanation:

subtract 25 so 5x^2=90. divide by 5 so w^2=18 then square root to get rid of the ^2 so w=+/-4.24

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In one hour, a satellite orbiting the Earth travels 1.1 x 107 m (meters). Which
bulgar [2K]
The answer would be better D.
8 0
3 years ago
Y = 10 - 2x<br> x = y - 4<br> How do you solve this system using substitution?
astraxan [27]

Answer:

im not sure what answer you are trying to find but i hope this helped

Step-by-step explanation:

y = 10 - 2x

x = y - 4

(input x)

y = 10 - 2(y - 4)

y = 10 - 2y + 8

3y = 10 + 8

3y = 18

y = 6

4 0
3 years ago
Read 2 more answers
Which graph represents the solution set for the inequality 8z≤ 16?
uysha [10]

Answer:

The graph in the attached figure

Step-by-step explanation:

we have

8z\leq 16

Solve for z

Divide by 8 both sides

z\leq 16/8

z\leq 2

The solution for z is the interval ----> (-∞,2]

All real numbers less than or equal to 2

In a number line the solution  is the shaded area at left of z=2 (closed circle)

using a graphing tool

see the attached figure

5 0
3 years ago
EXPONENTIAL FUNCTIONS HELP Write the function for each graph described below. the graph of f(x) = 2x reflected across the x-axis
raketka [301]

Answer:

  • -2^x
  • (1/3)^x +5
  • 3^(x +2) -3
  • (1/2)^x -2
  • 4^(x/3)
  • 2^(x -3) +4

Step-by-step explanation:

In general, the transformation ...

  g(x) = f(x -h) +k

translates f(x) right h units and up k units.

The transformation ...

  g(x) = f(x/a)

stretches the graph horizontally by a factor of "a".

The transformation ...

  g(x) = -f(x)

causes the graph to be reflected over the x-axis.

___

Applying the above, we have ...

f(x) = 2^x reflected over x is g(x) = -2^x

f(x) = (1/3)^x translated up 5 is g(x) = (1/3)^x +5

f(x) = 3^x translated by (-2, -3) is g(x) = 3^(x +2) -3

f(x) = (1/2)^x translated down 2 is g(x) = (1/2)^x -2

f(x) = 4^x stretched horizontally by a factor of 3 is g(x) = 4^(x/3)

f(x) = 2^x translated by (3, 4) is g(x) = 2^(x -3) +4

7 0
3 years ago
Could someone please help me
kakasveta [241]
The formula for a cone is
v = \pi \times  {r}^{2}  \times ( \frac{h}{3} )
insert 20 for your height and rearrange the formula to find the radius. Leave a comment if you need more help.
6 0
4 years ago
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