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2 years ago

Easy question simplify

Mathematics

2 answers:

makvit [3.9K]2 years ago

4 0

12² =144

but the question was not 12², but -12²

so the answer is -144

if the exercise was between (), so writen like this (-12)²

then you would need to do the - to the power of 2 as well

Inessa [10]2 years ago

3 0

Answer:

144

Step-by-step explanation:

-12 * -12 = 144

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Please answer this correctly

Dennis_Churaev [7]

Answer:

13 students

Step-by-step explanation:

At least 30 and fewer than 67 makes it 30-66

So,

30-66 => 13 students

6 0

3 years ago

Read 2 more answers

Anna enjoys having dinner at a restaurant in a town where the sales tax on meals is 10%. She leaves 15% tip before the sales tax

vitfil [10]

Answer:

The cost of her dinner without tax or tip is $22.

Step-by-step explanation:

Given:

Anna enjoys having dinner at a restaurant in a town where the sales tax on meals is 10%.

She leaves 15% tip before the sales tax is applied, and the tax is calculated on the pre-tip amount.

She spends a total of $27.50 on her dinner.

Now, to find the cost of her dinner without tax or tip.

Let the cost of dinner without tax or tip be $x.$

So, the tax is:

$10\%\ of\ x.$

$=\frac{10}{100} \times x$

$=0.10\times x$

$=0.10x.$

And, the tip is:

$15\%\ of \ x.$

$=\frac{15}{100} \times x$

$=0.15\times x$

$=0.15x.$

As given, she spends a total $27.50 on her dinner.

Now, to get the cost of her dinner without tax or tip:

$x+0.15x+0.10x=27.50$

$x+0.25x=27.50$

$1.25x=27.50$

Dividing both sides by 1.25 we get:

$x=22$

$x=\$22.$

Therefore, the cost of her dinner without tax or tip is $22.

5 0

3 years ago

A submarine was 144 feet below sea level. A shark was hovering at a constant depth above the submarine. The submarine’s depth wa

Lelu [443]

Answer:

$-72$ feet : Shark is 72 feet below sea level.

Step-by-step explanation:

Let x represent depth of the shark.

We have been given that the submarine’s depth was twice the depth of the shark. This means that depth of submarine would be $2x$ .

We have been given that a submarine was 144 feet below sea level, so submarine's elevation would be $-144\text{ ft}$ .We can represent this information in an equation as:

$2x=-144$

To find shark's position, we need to solve for x.

$\frac{2x}{2}=\frac{-144}{2}$

$x=-72$

Therefore, $-72$ feet represents shark's elevation, which represents that shark is 72 feet below sea level.

3 0

3 years ago

Read 2 more answers

Nancy walk 50 Minutes each day for 4 Days last week Gullian walked 35 minutes each day for 6 days last week.How does the total n

Gre4nikov [31]

Answer:

Last week Gullian walked 10 minutes more than Nancy.

Step-by-step explanation:

1. Nancy walk 50 minutes each day for 4 days last week, then the total number of minutes Nancy walked is

$50\cdot 4=200\ \text{minutes}.$

2. Gullian walked 35 minutes each day for 6 days last week, then the total number of minutes Gullian walked is

$35\cdot 6=210\ \text{minutes}.$

3. Since $200$ than last week Gullian walked 10 minutes more than Nancy.

8 0

3 years ago

Select the next two terms in the pattern. 0.4, 2, 10, 50, . . .

trapecia [35]

It is the multiplicity of 5, which means the next two terms is 250 and 1250

hope this helps

6 0

3 years ago