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3 years ago

5.Matrices M and N are shown below.

Mathematics

1 answer:

butalik [34]3 years ago

3 0

Answer:

try c hope this helps

Step-by-step explanation:

You might be interested in

Peggy practices her gymnastics routine for a total of 21 hours. Each practice session is 1 3/4 hours. How many practice sessions

Phoenix [80]

12 sessions.
EXPLANATION:
each session is 1 3/4 hours.
We need enough sessions for 21 hours.

the equation is 1 3/4 x f = 21

using the multiplication property of equality, we can do 21 divided by 1 3/4

The answer is 12 sessions.

Hope it helps!

6 0

3 years ago

FIRST GETS BRAINLIEST

nikitadnepr [17]

Answer:

8, 36, 81, 11, 7, 1000

Step-by-step explanation:

A

Lets start with number one.

x^2 = 64.

That means that x times x equals 64.

To find x's value, simply find the square root of 64, which is 8.

So x = 8.

For the second one, the square root of x is 6.

That means that 6 x 6 = x

6 x 6 = 36.

So, x = 36.

B

For the third one, the square root of x is 9.

That means that 9 x 9 = x

9 x 9 = 81

So, x = 81.

For the fourth one, x^2 = 121

That means x times x = 121

To find x's value, simply find the square root of 121, which is 11

So, x = 11.

C

For the fifth one, x^3 = 343.

That means that x times x times x = 343

To find x's value, simply find the square root of 343, which is 7.

So, x = 7.

For the sixth and last one, the cube root of x is 10.

That means 10 x 10 x 10 = x.

10 x 10 x 10 = 1,000

So, x = 1,000

I hope this helps! :)

4 0

3 years ago

The partial pressure of oxygen PaO2 is a measure ofthe amount of oxygen in the blood. Assume that the distribution ofPaO2 levels

Rus_ich [418]

Answer: a) 0.8665

b) 0.8190

Step-by-step explanation:

Given : The partial pressure of oxygen PaO2 is a measure ofthe amount of oxygen in the blood. Assume that the distribution ofPaO2 levels among newborns has a $\mu=$ 38 mmHg and $\sigma=$ 9 mmHg.

If we take a random sample n= 25 newborns, then using formula $z=\dfrac{x-\mu}{\dfrac{\sigma}{\sqrt{n}}}$ , we have

At x= 36

$z=\dfrac{36-38}{\dfrac{9}{\sqrt{25}}}\approx-1.11$

At x= 41

$z=\dfrac{36-38}{\dfrac{9}{\sqrt{25}}}\approx1.67$

Using table for z-values, the probability that the sample mean will be greater than 36 :

$P(z>-1.11)=1-P(\leq-1.11)=1-(1-P(z\leq1.11))=P(z\leq1.11)=0.8665004\approx0.8665$

The probability that the sample mean will be between 36 and 41 :-

$P(-1.11$

4 0

3 years ago

What approximate error rate should the manager expect for a worker who receives 6 hours of training?

mamaluj [8]

Answer:

c.0.13

Step-by-step explanation:

6 0

3 years ago

Plz help! I will mark you brainliest!

s2008m [1.1K]

Answer:

A. 80

Step-by-step explanation:

No math necessary. You know the brace needs to be longer than the distance between posts, so cannot be 4, 15, or 42 inches. The only answer choice longer than 64 inches is the correct one:

80 inches

4 0

4 years ago