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Sergeeva-Olga [200]

3 years ago

5

Please help. Is algebra.

1 answer:

Vedmedyk [2.9K]3 years ago

3 0

The answer for question 4 is C and the answer for question 5 is D.

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Solve for x<br> Enter the solutions from least to greatest.<br> -4x^2– 7 = -11

Pavlova-9 [17]

Answer:

x = 1, x = -1

Step-by-step explanation:

-4x² = -4

x² = 1

x = $\sqrt{1}$

x = ±1

3 0

3 years ago

Factor 14x2+6x-7x-3 by grouping

QveST [7]

14x^2+6x-7x-3

14x^-7x +6x-3

group

7x(2x-1) +3(2x-1)

factor out (2x-1)

(2x-1)(7x+3)

5 0

3 years ago

Six friends are going to a consert. Their tickets total

irga5000 [103]

Answer:

196 and 280

Step-by-step explanation:

7 0

3 years ago

For the function F defined by F(x) = x2 – 2x + 4, find F(b+3).

Ivanshal [37]

Answer:

$\displaystyle F(b + 3) = b^2 + 4b + 7$

Step-by-step explanation:

We are given the function:

$\displaystlye F(x) = x^2 - 2x + 4$

And we want to find F(<em>b</em> + 3).

We can substitute:

$\displaystyle F(b + 3) = (b + 3)^2 - 2(b+3) + 4$

Expand:

$\displaystyle = (b^2 + 6b + 9) + (-2b -6) + 4$

Rearrange:

$\displaystyle = (b^2) + (6b-2b) + (9 - 6 + 4)$

Combine like terms. Hence:

$\displaystyle = b^2 +4b + 7$

In conclusion:

$\displaystyle F(b + 3) = b^2 + 4b + 7$

6 0

3 years ago

-3|x|+2x-1 if x=-5<br><br> plz help

Savatey [412]

Answer:

f(x) = -3|x| + 2x - 1

f(-5) = -3|-5| + 2*(-5) - 1

= -3*5 + 2*(-5) - 1

= -15 - 10 - 1

= -26

Hope this helps!

:)

5 0

3 years ago

Read 2 more answers