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3 years ago

Which of the ratios below has a unit rate of 50? Select all that apply.

Mathematics

1 answer:

professor190 [17]3 years ago

8 0

I think it’s A E D B

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Y is 5 less than the product of 4 and x

Tema [17]

Y=4x-5... if you were asking for that in words

3 0

3 years ago

Read 2 more answers

hree TAs are grading a final exam. There are a total of 60 exams to grade. (a) How many ways are there to distribute the exams a

nalin [4]

Answer:

a. 205320

b. 34220

c. 60! / (35)! (25)! + 60!/ (40)!(20)! + 60!/ (45)! (15)!

Step-by-step explanation:

a) The number of ways to dustribute exams among the TA's is:

n / (n - r)!

n= number of things to choose from

r= Choosing r number

60P3= 60! / (60 - 3)!

(60)(59)(58)(57)! / (57)!

=205320

B) The number of ways to dustribute the exams among the TA's is:

n! /(n - r)! r!

60C3= 60! /(60 - 3)! 3!

= 60!/ 57! 3!

= 60 × 59 × 58 / 3 × 2 × 1

= 34220

C) The required number of ways is:

60C25 + 60C20 + 60C15

= 60! / (35)! (25)! + 60!/ (40)!(20)! + 60!/ (45)! (15)!

6 0

3 years ago

Use technology to find the P-value for the hypothesis test described below. The claim is that for 12 AM body temperatures, the

Elan Coil [88]

Answer:

P value = 0.1575

Step-by-step explanation:

Data provided in the question

t = 1.021

n = 33

$\mu$ = 98.6° F

Based on the above information, the P-value could be determined by using the excel spreadsheet i.e. shown in the attachment

So, the P value is 0.1575

The 1.021 denotes the test statistic

32 denotes degrees of freedom

And,

1 denotes one tailed alternative hypothesis.

6 0

4 years ago

What percent is 7/34

Artemon [7]

Answer:

20.58%

Step-by-step explanation:

8 0

3 years ago

What is the error in the proof? The error is in step 3. The reason should be the quotient property of exponents. The error is in

galina1969 [7]

Answer:

The error is in step 3. You cannot use a property of logarithms to prove that same property.

Step-by-step explanation:

Here we the proof of the quotient rule as

If Logₐx = M and Logₐy = N

Then x = $a^M$ and y = $a^N$

x ÷ y = $a^M$ ÷ $a^N$ = $a^{(M-N)}$

Take log of both sides we get

Logₐ(x÷y) = Logₐ $a^{(M-N)}$

Logₐ(x÷y) =M-N logₐa

Logₐ(x÷y) =M-N

∴Logₐ(x÷y) = Logₐx - Logₐy

5 0

3 years ago