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tatiyna
3 years ago
13

Which expression is equivalent to 24 ⋅ 2−7? 1 over 2 to the power of 11 1 over 2 to the power of 3 23 211

Mathematics
2 answers:
cupoosta [38]3 years ago
7 0

Answer: A

Step-by-step explanation: hope it helps :)

lawyer [7]3 years ago
5 0
I over 2 to the power 11
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Catherine wants to pass year for Ms. Ford's class and all she has left is to take the final Spring Final. If she earned a 60 on
Anvisha [2.4K]

Step-by-step explanation:

The final grade is the average of the two semesters.

70 = ½ (60 + x)

x = 80

So Catherine needs a Semester 2 grade of 80%.

The average of RC3 and RC4 is ½ (62 + 53) = 57.5.  This accounts for 90% of the Semester 2 grade.  The other 10% is the Spring final.

80 = 0.90 (57.5) + 0.10 (x)

x = 282.5

Catherine would have to score 282.5% on the Spring final in order to pass.

3 0
4 years ago
Look at pic for question
Gnesinka [82]
FYI this is probably the easiest question I have ever seen. Just use a calculator. The answer is 9R1
7 0
4 years ago
Work out 3/5 - 1/3<br> In its simplest form <br><br> Work out 2/5 x 5/6 <br> In its simplest form
LenKa [72]

3 \div 5 - 1 \div 3 =  9 - 5 \div 15 \\  = 4 \div 15 \\  \\ 2 \div 5 \times 5 \div 6 = 2 \div 6

Hope it helps

6 0
3 years ago
-2-9<br>plz show your work ​
Darina [25.2K]

Answer:

hi

Step-by-step explanation:

we should collect 2 and 9 and add -

2+9 is 11 then we add -

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hope it helps

5 0
3 years ago
Read 2 more answers
The null and alternative hypotheses are given. Determine whether the hypothesis test is​ left-tailed, right-tailed, or​ two-tail
Rainbow [258]

Answer:

The hypothesis test is​ right-tailed and the parameter that is being​ tested is the population standard deviation (\sigma).

Step-by-step explanation:

We are given with the following null and alternative hypothesis below;

Null Hypothesis, H_0 : \sigma = 7

Alternate Hypothesis, H_A : \sigma > 7

The parameter that is being tested here is the population standard deviation (\sigma). So, the null hypothesis states that the population standard deviation is equal to 7 while on the other hand, the alternate hypothesis states that the population standard deviation is greater than 7.

The above hypothesis test is right-tailed because in the alternate hypothesis, greater than sign is there which means that if the test statistics will be more than the critical value, then the null hypothesis will be rejected.

4 0
4 years ago
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