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4 years ago

Can someone please tell me the correct answer.|-30| + |25| =

Mathematics

1 answer:

Mkey [24]4 years ago

7 0

Answer:

Step-by-step explanation:

The absolute value of -30 is 30 and the absolute value of 25 is 25.

So you will end up with 30 + 25 which is 55.

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Use z scores to compare the given values.

Effectus [21]

Answer:

The answer is given below

Step-by-step explanation:

Z score is used to measure by how many standard deviations the raw score is above or below the mean. It is given by the formula:

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

For the male:

μ = 3259.8 g, σ = 869.7 g

Hence for a male who weighs 1600 g, the z score is:

$z=\frac{x-\mu}{\sigma} =\frac{1600-3259.8}{869.7}=-1.91$

For the female:

μ = 3000.9 g, σ = 550.8 g

Hence for a female who weighs 1600 g, the z score is:

$z=\frac{x-\mu}{\sigma} =\frac{1600-3000.9}{550.8}=-2.54$

Since the z score for the male is z= -1.91 and the z score for the female is z= -2.54 the male has the weight that is more extreme.

6 0

3 years ago

How do i solve this? will give brainliest

Citrus2011 [14]

Answer:

n=-2c/p +2/p

Step-by-step explanation:

8 0

3 years ago

Write an equivalent algebraic equation for the sentence below.

tatuchka [14]

Answer:

x-7=13

Step-by-step explanation:

x-7= 13

hope that helps

5 0

3 years ago

Solve the system equations. <br> X+2y=0<br> 10y=-5

nexus9112 [7]

Answer:

x=1

y=-1/2

Step-by-step explanation:

x+2y=0....(1)

10y=-5.....(2)

From (2) we can find y.

y=-5/10

y=-1/2

Use that in (1)

x+2*(-1/2)=0

x-1=0

x=1

5 0

3 years ago

In a bag are 3 red, 9 blue, 2 yellow and 3 green marbles. If you draw out a marble at random, what the probability that you will

dmitriy555 [2]

Answer:

9/17

Step-by-step explanation:

there are 17 marbles in total 9 of them are blue therefore, 9/17 is the correct answer

6 0

3 years ago