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3 years ago

F(x)=2x+1. If f(2)=___? -5 -7 -3 -1

Mathematics

1 answer:

nikitadnepr [17]3 years ago

8 0

$f(2) = 2(2) + 1 \\ f(2) = 4 + 1 \\ f(2) = 5$

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Help please i’ll rate you brainliest

lara [203]

Answer:

all sides same length and 4 right angles and 4 sides

Step-by-step explanation:

6 0

4 years ago

Read 2 more answers

Given f(x)=70+11x, find x when f(x)=158 A.8 B.7 C.1738 D.88

Ray Of Light [21]

I got 1808 is your multiple choice wrong?

5 0

4 years ago

Find the solutions to the equation below. Check all that apply. 4x2 + 4x + 1 = 0

Verizon [17]

Answer:

The solution for the given polynomial $4x^2 + 4x+ 1 = 0$ is $x = (\frac{-1}{2})$

Step-by-step explanation:

Here, the given quadratic equation is : $4x^2 + 4x+ 1 = 0$

Now, here solving the given equation by SPLITTING THE MIDDLE TERM:

$4x^2 + 4x+ 1 = 0 = 4x^2 + 2x+ 2x + 1 = 0\\\implies 2x( 2x + 1) + 1(2x + 1) = 0\\\implies (2x +1)(2x +1) = 0\\$

⇒ either (2x+1) = 0, or ( 2x + 1) = 0

⇒ x = -1/2 or x = -1/2

Here, in both the cases, the value of x is equal i.e x = -1/2

So, the given function has TWO IDENTICAL ROOTS.

Hence the solution for the given polynomial $4x^2 + 4x+ 1 = 0$ is $x = (\frac{-1}{2})$

4 0

3 years ago

-7x-x-1=? Help please

bonufazy [111]

The answer is 8x-1 I believe

5 0

3 years ago

Help me I need help I need help

Licemer1 [7]

Answer:

$\Huge\boxed{131.88}$

Step-by-step explanation:

Hello There!

First thing we want to do is find the formula for circumference of a circle

C = 2(3.14)r

where r = radius

we are given the diameter so we have to convert that into radius to do so we just divide by 2

42/2=21 so the radius equals 21 inches

now we just plug in 21 for r in the formula

$C = 2(3.14)21\\2*3.14=6.28\\6.28*21=131.88\\C=131.88$

So we can conclude that the circumference of the circle is 131.88 inches

3 0

3 years ago