All categories

4 years ago

Is this answer is right, please help!

Mathematics

1 answer:

Mariulka [41]4 years ago

7 0

The first 2 parts are correct
Third part is 40 %

You might be interested in

If ý = (-7, 2) and Z = (1, -8), find the difference y - z. ý -z = 0

Ganezh [65]

Answer:

<-8,10>

Step-by-step explanation:

Apply Regular Subtraction rules

(-8,10)

3 0

2 years ago

Simplify. 16 – 7 – (–4) + 12 A. –7 B. 17 C. 25 D. 39

alexandr402 [8]

1) 16-7+4+12
=25
so the answer is C
hope it helps

6 0

3 years ago

In 2014, 12% of adults said they learned Japanese by watching anime and having the subtitles in English. A recent survey found t

Ierofanga [76]

Answer:

Step-by-step explanation:

To Test :-

H0 :- P = 0.12

H1 :- P ≠ 0.12

P = X / n = 156/800 = 0.195

Test Statistic :-

Z = ( P - P0 ) / ( √((P0 * q0)/n)

Z = ( 0.195 - 0.12 ) / ( √(( 0.12 * 0.88) /800))

Z = 6.5279

Test Criteria :-

Reject null hypothesis if Z > Z(α/2)

Z(α/2) = Z(0.05/2) = 1.96

Z > Z(α/2) = 6.5279 > 1.96, hence we reject the null hypothesis

Conclusion :- We Reject H0

There is sufficient evidence to support the claim that there is a difference.

7 0

4 years ago

What is the exact distance between the point (-2,-1) and the point (6,8)

RUDIKE [14]

The answer is B. Use distance formula...

$d = \sqrt{(6 + 2) {}^{2} + (8 + 1) {}^{2} }$

6 0

4 years ago

Read 2 more answers

Pam spelled 68 of 100 words correctly on the pretest. How many words did she miss? If she learns 8 of those each day, how long w

Fofino [41]

Answer:

Pam missed 32 words in her pretest.

It will take 4 days for Pam to learn all missed words.

Step-by-step explanation:

Given:

Number of words spelled correctly = 68

Total number of words on the pretest = 100

We need to find the number of words she missed.

Solution:

now we can say that;

Number of words she missed can be calculated by subtracting Number of words spelled correctly from Total number of words on the pretest.

framing in equation form we get;

Number of words she missed = $100 -68 =32\ words$

Hence Pam missed 32 words in her pretest.

Now Given:

Number of words missed learned each day = 8

Total number of words missed = 32 words.

We need to find how long will take to learn them all.

now we can say that;

days required to learn missed words is equal to total number of words missed divided by Number of words missed learned each day.

framing in equation form we get;

Days required to learn missed words = $\frac{32}{8}=4\ days$

Hence It will take 4 days for Pam to learn all missed words.

3 0

3 years ago