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3 years ago

Which function has real zeros at x = 3 and x = 7?

Mathematics

1 answer:

elixir [45]3 years ago

7 0

all of them will give u zero

but not all of them

in the first one only if you equate x to be 3 that is when it will give u zero

for the second one is only when u equate x to be seven that's when it will be equal to zero

the same thing for the rest!

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2b+y is this an equation?

lutik1710 [3]

Answer:

No because equations have equal signs

Step-by-step explanation:

This is an expression

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2 years ago

Brianne solved a quadratic equation. Her work is shown below, with Step 2 missing.

Alja [10]

Given:

The given quadratic equation is

$3(x+4)^{2} = 48$

or, $(x+4)^{2} =16$

And

The roots are given: $x = -8 , x = 0$

To find the missing step.

Let us solve the equation.

$3(x+4)^{2} = 48$

or, $(x+4)^{2} = 16$

or, $x^{2} +8x+16 = 16$ [ eliminating 16 from both the side]

or, $x^{2} +8x = 0$

or, $x(x+8) = 0$

or, $x = 0, x = -8$

Hence,

The step 2 could be $x^{2} +8x = 0$

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4 years ago

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Given that y varies directly with x in the table find the value of y if the value of x is 5

Sophie [7]

Answer:15

Step-by-step explanation:

I took the test

8 0

3 years ago

HELP PLZ REALLY NEED IT

NISA [10]

The formula for the surface area is given and as follows.

SA = (2)(3.14)(r^2) + (2)(3.14)(r)(h)

The radius of the cylinder is 4 inches and the height is 9 inches. Using the given values, we can plug them into the formula and solve for the surface area from there.

SA = (2)(3.14)(4^2) + (2)(3.14)(4)(9)

SA = (6.28)(16) + (6.28)(36)

SA = 100.48 + 226.08

SA = 326.56 in^2

Hope this helps!! :)

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4 years ago

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For every $5 dollars Micah saves, his parents give him $10.

kicyunya [14]

QUESTION A.

m (Micah's savings) 5 10 15 20
p (Parents') 10 20 30 40

p = 2m

QUESTION B.

p = 2X150
p = $300

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3 years ago