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mash [69]
3 years ago
14

Micro-Tech, Inc.'s stock closed at 7.375, up 0.125. Yesterday's closing price was

Mathematics
1 answer:
katrin2010 [14]3 years ago
7 0

Answer is 7.25

Today's price was: 7.375

The question is saying that it went up .125 from yesterday's total, which means you have to take away .125 to get back to yesterday's total closing price

7.375 - .125 = 7.25

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Which of the following is an example of parallel lines?
RSB [31]
Answer: C

Explanation: they will never touch
8 0
4 years ago
Read 2 more answers
Principal = $800 Interest Rate = 3.5% Time = 2 years Find the interest earned.​
MA_775_DIABLO [31]

Answer:

so lets remember the formula for interest first.

#lightbulb

here it is A = P(1 + rt)

all we really have to do is plug in our rates, principles, and time into equation.

P = $800

t = 2 years

r = 6.5% or as a decimal 0.065

now lets look at our new equation that finally has numbers in it

A = 800[1 +(0.065)(2)] first lets take care of the 0.065 and 2 by multiplying them together. thus our new equation.

A = 800(1+ 0.13) then we add the 1 to the 0.13 and get 1.13

800(1.13) from here we just multiply  and that equals 904

since we are looking for what is earned we take 904 and subtract 800 to get that answer. Here is the math.

904 - 800 = 104

he made 104 dollars in 2 years

hope this is right

Step-by-step explanation:

4 0
3 years ago
Prove (correctly) that if 1 = -1, then 2=1
Nitella [24]

Answer:

This may not be entirely satisfied proof but you should get the idea.

Proof: Start with 1 = -1.

Then we know that if a= b then a + c = b + c and also a / c = b / c.

So we can add 1 to both sides.

We have 1 + 1 = -1 + 1   ⇒   2 = 0.

Now divide both sides by 2 and we would have 1 = 0.

Now add both sides by 1. This yields 2 = 1.

Therefore if 1 = -1 then 2 = 1.

QED

6 0
3 years ago
Seven times the sum of 4 and a number is -14
elena55 [62]

Answer:

Step-by-step explanation:

7*4a=-14

7-7*4a=-14-7

4a=-21

a=-5.25

7 0
3 years ago
Read 2 more answers
A random sample of individuals is selected from a population with μ , and a treatment is administered to each individual in the
Ghella [55]

Answer:

A) THE MEAN DIFFERENCE = 22.2 - 20 = 2.2

B) HERE WE NEED TO CALCULATE THE MARGIN OF ERROR

AS GIVEN THE VARIANCE = 384

THEREFORE STANDARD DEVIATION = (384)^(1/2) = 19.59

THE MARGIN OF ERROR = STANDARD DEVIATION / SQRT(N) = 19.59/SQRT(25) = 19.59/5 = 3.91

C) AS THE SAMPLE SIZE IS LESS THEN 30 THEREFORE WE WILL DO IT BY THE T TEST

We need to test the null H0 : µ = 20 against the TWO-sided alternative H1 : µ\neq 20, at level α = 0.05. Since n is SMALL, we will do a SMALL-sample T-test. The rejection region is T >Tα = 1.96OR T<-Tα = -1.96, using the normal table.

T= (X − µ0) /(S/√ n) = (22.2 − 20)/( 19.59/ √ 25) = 0.56 Since T = 0.56 < 1.96, H0 is ACCEPTED. Thus, there is significant evidence at 5% signifi- cance level .

Step-by-step explanation:

5 0
4 years ago
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