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Brilliant_brown [7]

2 years ago

15

A national achievement test is administered annually to 3rd graders. the test has a mean score of 100 and a standard deviation o

f 15. if jane's z-score is 1.20, what was her score on the test?

2 answers:

BARSIC [14]2 years ago

7 0

Her score on the test was 98.8

storchak [24]2 years ago

5 0

Answer:

118.

Step-by-step explanation:

You might be interested in

What is the simplified value of the exponential expression 27^1/3?

Kamila [148]

27^1/3= a number you multiply by itself three times to get 27

Cubic root of 27 is 3

= 3

3 0

3 years ago

Refer to the figure below to complete the following problem.

Ratling [72]

Im pretty sure the answer id b

4 0

2 years ago

31*r+1.1*(35−31)*r = 410.64.

Rasek [7]

Answer:

11.6

Step-by-step explanation:

<u>Solving with steps as below:</u>

31*r+1.1*(35−31)*r = 410.64
31r + 1.1*4r = 410.64
31r + 4.4r = 410.64
35.4r = 410.64
r = 410.64/35.4
r = 11.6

<u>Answer is:</u> r =11.6

5 0

3 years ago

Factor the polynomial 6x^4 + 24x^3-72x^2

Yuliya22 [10]

Answer:

the answer would be 6x^2(x+6)(x-2)

Step-by-step explanation:

6x^4 + 24x^3-72x^2

= 6x^2(x^2+4x-12)

= 6x^2(x+6)(x-2)

4 0

3 years ago

how is 0.00023 written in scientific notation? a. 23 x 10–5 b. 2.3 x 10–4 c. 2.3 x 104 d. 0.23 x 10–3

Annette [7]

Answer: $2.3\times10^{-4}$

Step-by-step explanation:

We know that Scientific notation is a way to write a very large or a very small number in the product of a decimal form of number [generally between 1 and 10] and powers of ten.

Given number : 0.00023

In scientific notation $0.00023=2.3\times\frac{1}{10000}=2.3\times10^{-4}$

Therefore, In scientific notation $0.00023=2.3\times10^{-4}$

7 0

3 years ago

Read 2 more answers