We have that
the equation
y=-3x² + x -4
the real number solutions are the points x intercept of the graph
are the points when y=0

using a graph tool
see the attached figure

the graph has no point of intersection with the x axis
therefore

the answer is
there are zero real numbers solutions

8 0

3 years ago

If b= 7, what is 1/3(2b+10)? Please help

goblinko [34]

Answer:8

Step-by-step explanation:

First, substitute 7 into the equation for b:

1/3(2x7+10)

Now, simplify using the order of operations:

1/3(14+10)

Then:

1/3 (24)

And you arrive at your answer:

3 0

4 years ago

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Pls help me it's urgent pls help me!

soldier1979 [14.2K]

Answer:

x/7 - 2 = y

Step-by-step explanation:

To find the inverse of a function, we switch f(x) and x and then solve for f(x). We thus have

x = 7f(x) + 14

subtract 14 from both sides to isolate the f(x) and its coefficient

x - 14 = 7 f(x)

divide both sides by 7 to isolate the f(x)

(x-14)/7 = f(x)

f(x) is synonymous with y here. so we havt

(x-14)/7 = y

This can also be written as

x/7 - 14/7 = y

x/7 - 2 = y

3 0

3 years ago

a 16-foot ladder is leaning against a wall.if the base of the ladder is 4 feet away from the base of the wall, how far up the wa

Marizza181 [45]

4^2 + b^2 = 16^2

16+ b^2 = 256

subtract 256 - 16

b^2 = 240

b= 15.49

4 0

3 years ago

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