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Annette [7]
2 years ago
8

Please help me with this

Mathematics
2 answers:
Varvara68 [4.7K]2 years ago
8 0

Answer:

21

Step-by-step explanation:

Hi,

When multiplying this, you can multiply straight across. (Remember 49 can also be written as a fraction, 49/1)

3/7 x 49/1 is equal to 147/7

147/7 is the same thing as 147 divided by 7 which is...

21

Your answer is 21. Hope this helps :)

Slav-nsk [51]2 years ago
7 0

Answer:

21.....

Step-by-step explanation:

hope this helps

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What is 6,007,200 in expanded and word form?
katrin [286]
Six million seven thousand two hundred
7 0
3 years ago
Read 2 more answers
The difference between two numbers is -1 and their sum is 1. Find the two numbers .
Sunny_sXe [5.5K]

Answer:

My handwriting is not good.

Hope you understood.

8 0
3 years ago
A researcher determines that students are active about 60 + 12 (M + SD) minutes per day. Assuming these data are normally distri
rjkz [21]

Answer:

The correct option is (b).

Step-by-step explanation:

If X \sim N (µ, σ²), then Z=\frac{X-\mu}{\sigma}, is a standard normal variate with mean, E (Z) = 0 and Var (Z) = 1. That is, Z \sim N (0, 1).

The distribution of these z-variate is known as the standard normal distribution.

The mean and standard deviation of the active minutes of students is:

<em>μ</em> = 60 minutes

<em>σ </em> = 12 minutes

Compute the <em>z</em>-score for the student being active 48 minutes as follows:

Z=\frac{X-\mu}{\sigma}=\frac{48-60}{12}=\frac{-12}{12}=-1.0

Thus, the <em>z</em>-score for the student being active 48 minutes is -1.0.

The correct option is (b).

4 0
3 years ago
Help me please!! i am already failing the test
Ivan

Answer:

2x²+2x

Step-by-step explanation:

you have f(x)= x+1 and g(x)= 2x

you must multiply the 2 polynomials

(1x·2x) +( 1·2x)

1·2=2  x^1·x^1=x²

2x²

1·2x=2x

4 0
3 years ago
HELP !!! Use the elimination method to solve the system of equations.
Dafna1 [17]

Answer:

C. (5, -3)

Step-by-step explanation:

4x + 3y = 11

x - y = 8  (multiply by 3) --> 3x - 3y = 24


4x + 3y = 11

3x - 3y = 24

---------------------add

7x = 35

 x = 5


5 - y = 8

y = 5 - 8

y = -3

(5, -3)


3 0
3 years ago
Read 2 more answers
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