Ask question

Ask question

All categories

olya-2409 [2.1K]

4 years ago

13

Which answer is equal to (f - g) (-5)

1 answer:

Marina CMI [18]4 years ago

6 0

<span>f(5)= 2+5 = 7
</span><span>g(5)= 5^2+5 = 25 +5 = 30

</span><span>(f - g) (-5) = 7 - 30 = -23

answer is </span><span>D.-23</span>

You might be interested in

Simplify the expression:<br> (10x2 -1 + 4x) + (3 + 5x2 - 4x)

dexar [7]

Answer:

15x^2+2

Step-by-step explanation:

(10x^2 -1 + 4x) + (3 + 5x^2 - 4x)

Combine like terms

10x^2+5x^2+4x-4x-1+3

15x^2+2

5 0

4 years ago

PLEASE HELP GUYS! The math club is order tee shirts for each member. The tee shirts cost $12.50 each plus a one - time set - up

ser-zykov [4K]

So ($25)

find out how much 126 t-shirts will cost including the $25 set up fee.
so in calculator its (12.50 × 126) + 25. This gives you 1600.
Now you know the answer, you work your way backwards.

y = x + $25

I THINK THIS IS RIGHT IF ITS NOT PLEASE TELL ME

6 0

4 years ago

Read 2 more answers

The life of light bulbs is distributed normally. The standard deviation of the lifetime is 20 hours and the mean lifetime of a b

FinnZ [79.3K]

Answer:

The probability of a bulb lasting for between 480 and 526 hours=0.74454

Step-by-step explanation:

We are given that

Standard deviation of the lifetime, $\sigma=20$ hours

Mean, $\mu=500$ hours

We have to find the probability of a bulb lasting for between 480 and 526 hours.

$P(480$

$P(480$

$P(480$

$P(480$

$P(480$

Hence, the probability of a bulb lasting for between 480 and 526 hours=0.74454

5 0

3 years ago

The weights of items produced by a company are normally distributed with a mean of 4.5 ounces and a standard deviation of 0.3 ou

GalinKa [24]

Answer:

The right solution is:

(a) 0.8849

(b) 12.28%

(c) 4.9935

(d) 28004

Step-by-step explanation:

Given:

Mean,

= 4.5

Standard deviation,

= 0.3

(a)

P(x > 4.14)

As we know,

⇒ $z = \frac{4.14-4.5}{0.3}$

$=-1.20$

then,

⇒ $P(z>-1.20) = P(z$

$=0.8849$

(b)

P(4.8 < x < 5.04)

= $P(\frac{4.8-4.5}{0.3} < \frac{x-\mu}{\sigma} < \frac{5.04-4.5}{0.3} )$

= $P(1$

= $P(z$

= $0.9641 -0.8413$

= $0.1228$

or,

= $12.28$ (%)

(c)

P(x > x) = 0.05

z value will be,

= 1.645

⇒ $1.645 = \frac{x - 4.5}{0.3}$

$x = 4.9935$

(d)

P(x < 5.01)

⇒ $z = \frac{x- \mu}{\sigma}$

$=\frac{5.01-4.5}{0.3}$

$=1.7$

P(z < 1.70) = 0.9554

⇒ $n = \frac{27875}{0.9954}$

$=28004$

3 0

3 years ago

I need help please.

olchik [2.2K]

Answer:

31 / 12

Step-by-step explanation:

To get the perimeter, just add up all the sides of the parallelogram, so 5/8 + 5/8 + 2/3 + 2/3 = 31/12

8 0

4 years ago