Please help asap 30 pts

Mathematics

1 answer:

kupik [55]3 years ago

5 0

Answer:

last choice d

Step-by-step explanation:

4| x - 3| - 8 = 8

| x-3| - 2 = 2

| x-3| = 4 we have two cases:

(a) x - 3 = 4 for x >= 3

x=7

(b) -1( x-3 ) =4 for x < 3

x = -1

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A set of average city temperatures in May are normally distributed with a mean of 20.66 ^\circ \text{C}20.66

Angelina_Jolie [31]

Answer:

0.9962

Step-by-step explanation:

The z score shows the number of standard deviations by which the raw score is above or below the mean. If the raw score is above the mean then the z score is positive but if the raw score is less than the mean then the raw score is negative. The z score is given by:

$z=\frac{x-\mu}{\sigma}\\ \\\mu=mean,\sigma=standard\ deviation, x=raw\ score$

μ = 20.66°C, σ = 2°C

For x < Singapore temperature, i.e. x < 26

$z=\frac{x-\mu}{\sigma} =\frac{26-20.66}{2}=2.67$

From the normal distribution table P(x < 26) = P(z < 2.67) = 0.9962

4 0

3 years ago

What are the zeros of the graphed function y = (x + 3)(x + 5)?

tensa zangetsu [6.8K]

Y=(x+3)(x+5)
0=(x+3)(x+5)
0=x+3
Subtract three on both sides
-3=x
0=x+5
Subtract five on both sides
-5=x
So, -3 and -5 are the zeros of the graphed function.
Hope I helped!

5 0

3 years ago

Read 2 more answers

Please help ASAP Due very soon

MissTica

Answer:

y = -3/4 + 4

Step-by-step explanation:

use rise over run to find slope

6 0

3 years ago

How many cubes with side lengths of 1/2 cm does it take to fill up the prism