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2 years ago

F(x)=4x+11 If f(x) = -1 what is the value of x

Mathematics

2 answers:

andreev551 [17]2 years ago

5 0

Answer:

Since both equations equal to f(x), you can set 4x+11 equal to -1 and solve for x.

4x+11=-1

Subtract 11 from both sides.

4x=-12

Divide both sides by 4.

x=-3

Fynjy0 [20]2 years ago

4 0

Brainiest?

9 :)

anywho brainiest?

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Thanks for any help provided to me! :3

enyata [817]

Answer:

0.25

Step-by-step explanation:

Average means $\frac{total \: number}{number \: \: of \: \: individuals}$

According to the formula, each student in Mr. Goldwasser's class read

$\frac{66}{24} = 2.75$

books on average, and each student in Mr. Welch's class read

$\frac{65}{26} = 2.5$

books on average.

Therefore, the answer will be

$2.75 - 2.5 = 0.25$

7 0

3 years ago

Please help I don't understand

7nadin3 [17]

Answer:

1<x≤8

Step-by-step explanation:

x is greater than one, but is less than or equal to 8

4 0

3 years ago

Cheese sticks that were priced at "10 for 1 dollar are now "4 for 1 Dollar. Find each percent change. Find the percent increase

lina2011 [118]

Cheese sticks were 10. for dollar or 10 cents a piece (10/100 =.10 or 10 cents. now 4 for dollar or ,25 x 100 = 25 cents each (4/100). percent change

.25 - , 10 =.15
,15/,25 = .60
.60 x 100 = 60%

6 0

3 years ago

Two cars traveled equal distances in different amounts of time. Car A traveled the distance in 2 h, and Car B traveled the dista

lidiya [134]

Recall your d = rt, distance = rate * time.

notice, the distance are the same, say it was "d" miles.

and if car A is travelling at a speed of say "r" mph, then B is going at "r+15" mph.

$\bf \begin{array}{lccclll}
&\stackrel{miles}{distance}&\stackrel{mph}{rate}&\stackrel{hours}{time}\\
&------&------&------\\
\textit{Car A}&d&r&2\\
\textit{Car B}&d&r+15&1.5
\end{array}
\\\\\\
\begin{cases}
\boxed{d}=2r\\
d=1.5(r+15)\\
----------\\
\boxed{2r}=1.5(r+15)
\end{cases}
\\\\\\
2r=1.5r+22.5\implies 0.5r=22.5\implies r=\cfrac{22.5}{0.5}\implies \boxed{r=\stackrel{mph}{45}}$

how far is B going? well, r + 15.

5 0

3 years ago

Read 2 more answers

How many triangles can be constructed with angles measuring 35º, 62º, and 83º?

ladessa [460]

B)OPTION B only 1 is your answer.

6 0

3 years ago