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3 years ago

Evaluate (-7)² Please answer as soon as possible! thank you ;)

Mathematics

2 answers:

astraxan [27]3 years ago

8 0

Answer:

Step-by-step explanation:

when -7 * -7 is done, the minuses will cancel to make a plus, thus you will get 49

Lady bird [3.3K]3 years ago

5 0

Answer:

Hey there!

The answer is 49.

(-7)(-7)=49

Let me know if this helps :)

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Evaluate each of the following to three significant figures, and express each answer in SI units using an appropriate prefix: (a

Softa [21]

Answer:

a). $4.86\times 10^{-15}$ m

b). $4.21\times 10^{-2}$ m³

c). $7.00\times 10^{3}$ N²

Step-by-step explanation:

In this question we have to convert each option into SI units.

a). $4.86(10^{-6})^{2}$ mm

= $4.86\times (10^{-12})\times (10^{-3} )$ m

= $4.86\times 10^{-15}$ m

b). (348 mm)³

= $(348)^{3}\times (10^{-3})^{3}$ m³

= $42144192\times 10^{-9}$ m³

= $4.21\times 10^{-2}$ m³

c). $(83700)^{2}\times (10^{-3})^{2}$ N²

= $700569\times 10^{4}\times 10^{-6}$ N²

= $7.00\times 10^{9}\times 10^{-6}N^{2}$

= $7.00\times 10^{3}$ N²

7 0

3 years ago

Is y=x+9 linear or is it not linear

avanturin [10]

Answer: It is linear. When a line is linear it just means it makes a straight line when you graph it. When it isn’t it will be curved or in some weird shape.

Step-by-step explanation:

3 0

3 years ago

A rectangle has a length of 4 cm, a width

Blizzard [7]

19 is the answer to this question

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3 years ago

An adult ticket to the show costs $2 more than a student ticket. The total cost of 3 student tickets and 2 adult tickets is $39.

madreJ [45]

Answer:

An adults ticket costs $9

Step-by-step explanation:

Kids:

Adults:

So if you add 7+7+7= 21 (kids)

then do 9+9=18(adults)

Then add them together you get 39$

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3 years ago

Read 2 more answers

Someone helps…………………

Debora [2.8K]

Answer:

The third choice is correct

Step-by-step explanation:

Domain > or equal to -3, and range is less than or equal to -2

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4 years ago