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atroni [7]
3 years ago
8

If f(x) = 5x + 40, what is f(x) when x = –5? –9 –8 7 15

Mathematics
2 answers:
Gnoma [55]3 years ago
5 0
Hi,

f(x)=5x+40\\\\f(-5)=5\times(-5)+40=-25+40=15\\f(-9)=5\times(-9)+40=-45+40=-5\\f(-8)=5\times(-8)+40=-40+40=0\\f(7)=5\times7+40=35+40=75\\f(15)=5\times15+40=75+40=115
scoray [572]3 years ago
4 0
The Answer is 15. You're welcome kidz
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Paul [167]

Answer:

Step-by-step explanation:

I'm guessing we are missing a piece of the question such as the average speed at which Nadeem can ride. Let's call it v

distance is a product of velocity and time

d = vt

t = d/v

so if v is in miles/hr, an inequality could be

12/v ≤ t ≤ 15/v

5 0
2 years ago
A) For AQRS use the Triangle Proportionality Theorem to solve for x.
xenn [34]

Answer:

a. x = 14

b. Perimeter = 77

Step-by-step explanation:

a. Based on the Triangle Proportionality Theorem:

\frac{2x - 2}{13} = \frac{21 - 7}{7}

\frac{2x - 2}{13} = \frac{14}{7}

\frac{2x - 2}{13} = 2

Cross multiply

2x - 2 = 2(13)

2x - 2 = 26

Add 2 to both sides

2x = 26 + 2

2x = 28

Divide both sides by 2

x = 14

b. Perimeter of ∆QRS = RQ + QS + RS = (2x - 2) + 13 + 17 + (21 - 7) + 7

Plug in the value of x

= (2(14) - 2) + 13 + 17 + 14 + 7

= 26 + 13 + 17 + 14 + 7

= 77

8 0
3 years ago
Express in terms i root of -40
tensa zangetsu [6.8K]

Answer:

6.32455532i

Step-by-step explanation:

Use the square root calculator too find it

5 0
3 years ago
Max's Market sells 6 eggs for £2.04.
nlexa [21]

Answer:

Groceries Galore

Step-by-step explanation:

1) Find the value of 1 egg for each shop.

<u>Max's Market: </u>

2.04 ÷ 6

= £0.34

<u>Groceries Galore:</u>

2.64 ÷ 8

= £0.33

<u>Fancy Foodstuffs:</u>

4.08 ÷ 12

= £0.34

Therefore, Groceries Galore's price per egg is cheaper.

4 0
2 years ago
Read 2 more answers
Simplify -5( 7 + x ) + 2 5/6x.
babunello [35]
I think the answer is -35-13/6x
4 0
3 years ago
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