All categories

3 years ago

Simplify the expression -4.6+( -1.4) .on the test , when maureen simplified the expression she got 3.2 .

Mathematics

1 answer:

Sav [38]3 years ago

4 0

Answer:

Step-by-step explanation:

-4.6+( -1.4)=

-4.6-1.4=-6 maureen is wrong, because both have the minus , so she should add with the minus symbol.

You might be interested in

A survey among freshman at a certain university revealed that the number of hours spent studying before final exams was normally

patriot [66]

Answer: 0.0775

Step-by-step explanation:

Given : Mean : $\mu = 25$

Standard deviation : $\sigma =15$

Sample size : $n=36$

Since its normal distribution , then the formula to calculate the z-score is given by :-

$z=\dfrac{x-\mu}{\dfrac{\sigma}{\sqrt{n}}}$

For x= 28.2 hours

$z=\dfrac{28.2-25}{\dfrac{15}{\sqrt{36}}}=1.28$

For x= 30 hours

$z=\dfrac{30-25}{\dfrac{15}{\sqrt{36}}}=2$

The P- value = $P(1.28$

$=P(z$

Hence, the probabiliy that the average time spent stydying for the sampe was between 28.2 and 30 hours = 0.0775

6 0

2 years ago

3 1/8 rounded to the closest benchmark

Karolina [17]

I have the answer but brainly is not working

3 0

2 years ago

Read 2 more answers

A lot for sale is shaped like a trapezoid. The bases of the trapezoid represent the widths of the front and back yards. The widt

RoseWind [281]

Answer:

Front: 33 ft

Back: 66 ft

Step-by-step explanation:

Let w be the width of the front yard

½[w + 2w]×2w = 3300

3w² = 3300

w² = 1100

w = 33.1662479036

w = 33 ft

2w = 66 ft

4 0

2 years ago

A radio station advertised the Olympia Marathon by saying that about 12,000,000 calories would be burned in one day. If there we

erastova [34]

I THINK THE ANSWERE IS =B

3 0

2 years ago

Read 2 more answers

If (NN)^3 = 8518N, what digit does N represent?

sveticcg [70]

Answer:

Step-by-step explanation:

I am going to solve this by trial and error:

(A) 1

Is: $(11)^{3} = 85181$ ?

$(11)^3 = 1331$

So 1 is not the digit of N.

(B) 2

Is: $(22)^{3} = 85182$ ?

$22^3 = 10648$

So 2 is not the digit of N.

(C) 4

Is: $(44)^{3} = 85184$ ?

$44^3 = 85184$

Correct, so the answer is c.

(D) 5

$55^3 = 166375 \neq 85185$

(E) 6

$66^3 = 287496 \neq 85186$

7 0

2 years ago