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3 years ago

I ORDER OF OPERATIONS 30 divided by 2-5x2

Mathematics

2 answers:

DIA [1.3K]3 years ago

6 0

Answer:

your answer is 5 friend!

Step-by-step explanation:

next time write it out like this....

(30/2)-(5x2)

just so it makes more sense byeeee friend

wlad13 [49]3 years ago

6 0

Answer:

15-5x2

Step-by-step explanation:

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9th Grade Geometry<br><br> Describe and correct the error in finding the length of line segment AB

Nookie1986 [14]

The correct option regarding the error in calculating the length of segment AB is given as follows:

There should have been a subtraction instead of an addition, and the correct length is of 3.5 units.

<h3>Where are points A and B?</h3>

Researching the problem on the internet, it is found that points A and B are on a number line, with coordinates given as follows:

A: 1.

B: 4.5.

<h3>What is the length of the segment?</h3>

The length of the segment is the absolute value of the subtraction of the endpoints, hence:

L = |4.5 - 1| = |1 - 4.5| = 3.5.

The error is that:

There should have been a subtraction instead of an addition, and the correct length is of 3.5 units.

More can be learned about the length of a segment at brainly.com/question/7694028

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2 years ago

I need help on this math question

Mrrafil [7]

Answer:

the answer is 9

Step-by-step explanation:

x=9 and w=9 making it 18, so if x=9 then v=7 because 7+9=16

7 0

3 years ago

Tony notes that an electronics store is offering a flat $20 off all prices in the store. Tony reasons that if he wants to buy so

Lena [83]

Answer:

inconsistent reasoning; saving $20 is saving $20.

Step-by-step explanation:

When we buy something for $ 50 we save $ 20 which is

20/50 * 100= 2/5* 100= 0.4*100= 40 %

When we buy something for $ 500 and save $ 20 it means that we are saving

20/500 * 100= 2/50* 100= 0.04*100= 4 %

Now if we compare 40 % to 4 % we can ourselves see that there is a difference of 36 % which is large enough to drop out the high priced items.

There is inconsistent reasoning for discount pricing.

So it is inconsistent reasoning; that only $ 20 can be saved on all items no matter what the prices are .

The offer is beneficial for only good for low priced items.

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3 years ago

The circumference of a circle is 32 centimeters. Which is closest to the radius? A. 10.2 centimeters B. 5.1 centimeters C. 16 ce

pshichka [43]

The answer is B 5.1 cm

8 0

3 years ago

Read 2 more answers

A random sample of 23 items is drawn from a population whose standard deviation is unknown. The sample mean is x⎯⎯ = 770 and the

zhannawk [14.2K]

Answer:

For α=0.01 and two-tailed test: t=2.8188

For α=0.025 and two-tailed test: t=2.4055

For α=0.05 and two-tailed test: t=2.0739

For α=0.10 and two-tailed test: t=1.7171

Step-by-step explanation:

In this problem, we have to estimate the value of the statistic "t" of a sample of size n=23 (22 degrees of freedom), in which the sample mean is M=770 and the sample standard deviation is s=25.

The estimated standard deviation is

$s_M=s/\sqrt{N}=25/\sqrt{23} =5.21$

The critical values of the statistic t depends on the significance level:

The degree of freedom is known: df=22.

For α=0.01 and two-tailed test: t=2.8188

For α=0.025 and two-tailed test: t=2.4055

For α=0.05 and two-tailed test: t=2.0739

For α=0.10 and two-tailed test: t=1.7171

8 0

3 years ago