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3 years ago

Write each expression in exponential form and find its value. 2 x 2 x 2 x 2

Mathematics

2 answers:

Oduvanchick [21]3 years ago

7 0

Answer:

wait are you asking for the answer to 2 x 2 x 2 x 2

if so 16

Step-by-step explanation:

kumpel [21]3 years ago

7 0

Yes, 2•2•2•2= 16. But, that equation would equal 2^4 in another form. 2, small 4 above the 2.

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Ali bought a music system for rs 6375.00 and spent rs 75.00 on transportation . He sold it for 6400.00 . Find his profit or loss

pentagon [3]

Answer: Loss percent = 0.775%

Step-by-step explanation:

Here,

Total cost = Purchasing price + transportation

⇒ Total cost = 6375 + 75

⇒ Total cost = $ 6450

Selling price = $ 6400

Total cost > Selling price, hence it is a loss.

Loss percent formula :

$Loss\% =\dfrac{\text{Loss}}{Total\ cost}\times100\\\\=\dfrac{Total\ cost - Selling price}{Total \ cost}\times100\\\\=\dfrac{6450-6400}{6450}\times100\\\\=\dfrac{50}{6450}\times100=0.775\%$

Hence, Loss percent = 0.775%

6 0

3 years ago

Sarah started 3 miles below the rim of the canyon and hiked until she was 8 miles above the rim. Her brother Sam said she hiked

larisa86 [58]

Answer:

Step-by-step explanation:

We can assume that the rim of the canyon is 0. Sarah started 3 miles below, so -3, BUT distance can never be negative, so it's considered 3 miles. Then, she went 8 miles above zero. So the 3 miles she went before reaching the rim plus the 8 miles she went after reaching the rim equals 11 miles.

So now we know that Sarah is right, but how do we know which equation is correct? Well, if we look at option C:

$|-3+8|=11$

When solving absolute value, we solve everything within the absolute value before applying the absolute value. This means that we add -3+8 first, which equals 5, and then apply absolute value, which still equals 5. This equation is not correct.

I hope this helps!

3 0

3 years ago

Read 2 more answers

Which equation has a graph perpendicular to the graph 7x=14y-8

IrinaVladis [17]

Slope-intercept form is y = mx + b
m is the slope
b is the y-intercept

7x = 14y - 8

7x + 8 = 14y {added 8 to each side}
(1/2)x + (8/14) = y
slope is 1/2

A line perpendicular would have a slope of -2 {the negative reciprocal of 1/2}

#1 y = -2x - 7 {it is the only one with a slope of -2}

5 0

3 years ago

Lisa can paint a wall in four hours. Sissi needs eight hours to paint the wall. How long will it take if they are helped?

never [62]

Answer:

It will take very less time actually. we cannot say accurately because if two girls start to chat they will till next day

4 0

3 years ago

Ellie wanted to know how much her mother spent on groceries weekly, so she saved each week's receipt for a whole year.

Aloiza [94]

Mean or c is the answer

7 0

3 years ago

Read 2 more answers