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Ket [755]
2 years ago
5

1. Evaluate each expression without using a calculator. (a)

mula1" title="(-3)^{4}" alt="(-3)^{4}" align="absmiddle" class="latex-formula">
Mathematics
1 answer:
Rufina [12.5K]2 years ago
5 0

The result of the exponential expression is 81

<h3>Indices expressions</h3>

Indices are written in term of exponents

According to the expoenent law of indices

a^4 = a * a * a * a

Given the expression

(-3)^4

This means the product of -3 in four places. Mathematically

(-3)^4 = -3 * -3 * -3 * -3
(-3)^4 = 9 * 9
(-3)^4 = 81

Hence the result of the exponential expression is 81

Learn more on exponents here: brainly.com/question/11975096

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A triangle has side lengths 2.83 m, 4 m, and 2.24 m. The angles measures are 45°, 63°, and 72°.
vagabundo [1.1K]

Answer:

  • D) acute scalene

Step-by-step explanation:

<h3>What are the definitions?</h3>

  • Obtuse triangle - the triangle with angle greater than 90°;
  • Acute triangle - the triangle with all interior angles under 90°;
  • Isosceles triangle - the triangle with a pair of equal sides;
  • Scalene triangle - the triangle with all three sides (or angles) of different measure.

<h3>What we have?</h3>

  • All sides are different and all angles are under 90°.

<h3>Which option is correct?</h3>

  • D) acute scalene

7 0
2 years ago
Gary wants to buy a video game with a selling price of $48, on sale for 50% off. The sales tax in his state is 4.5%. How much wi
Anna [14]

Answer:

$25.20

Step-by-step explanation:

First, take the 50% off the sales price:

($48)*(-0.50) = -$24.

($48 - $24) = $24 sale price.

Tax on $24 is ($24)*(0.05) = $1.20

Add the price and sales tax:

$24 + $1.20 = $25.20

5 0
3 years ago
A backpack is normally $64.99 but is discounted ti $45.49. What percent of the original does Maria pay?
Setler [38]

Answer:30%

Step-by-step explanation:

3 0
2 years ago
Use the graph below to find the coordinates of J'after J(-5, 1) was reflected over the linex=-3.
k0ka [10]

Answer:

J's would be (-5,-4) if J was reflected over the line x=3.

7 0
3 years ago
A tin of biscuits contains shortbread and choc-chip biscuits in the ratio 2:3 . The tin contains 80 biscuits. How many short-bre
Aleksandr [31]

Answer:

32

Step-by-step explanation:

There are 80 biscuits inside the tin.

Also, they said that those biscuits are in the ratio

Short bread    :      Choc - chip

          2          :        3

Altogether there are 5 shares ( 2 + 3)

And now you can divide 80 by 5 to find how many biscuits contain per a share.

80 ÷ 5 = 16

In the question, they asked us to to find the number of short biscuits inside the tin.

Let us find that.

There are 2 shares for short bread biscuits.

So,

Number of short biscuits ⇒ 2 × 16

                                         ⇒ 32

Hope this helps you :-)

5 0
2 years ago
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