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3 years ago

Tim wrote 16 as (-2)^4. is he correct?

Mathematics

2 answers:

algol [13]3 years ago

5 0

Yes, he is correct. Since.....

(−2)^4

=(−2)*(−2)*(−2)*(−2)

=(−2)^4

=16

maks197457 [2]3 years ago

4 0

Try it
(-2)^4 means -2 times itself 4 times so
-2 times -2 times -2 times -2=(-2 times -2) times (-2 times -2) remember that negative time negative=positive so
(4) times (4)=16
correct

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deff fn [24]

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Step-by-step explanation:

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2 years ago

Tobias made a fruit salad with a blueberry to raspberry ratio of 8:6. Tobias' container of blueberries contains 72 blueberries.

ipn [44]

Answer:

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2 years ago

In circle P with mNRQ = 60°, find the angle measure of minor arc NQ

Galina-37 [17]

Given:

m∠NRQ = 60°

To find:

The angle measure of minor arc NQ

Solution:

The inscribed angle is half of the intercepted arc.

$$\Rightarrow m\angle NRQ =\frac{1}{2} m(ar NQ)$

Multiply by 2 on both sides.

$$\Rightarrow 2 \times m\angle NRQ =2 \times \frac{1}{2} m(ar NQ)$

$$\Rightarrow 2 \ m\angle NRQ =m(ar NQ)$

Substitute m∠NRQ = 60°.

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3 years ago

A ball is thrown from a height of 38 meters with an initial downward velocity of 3 m/s

ANTONII [103]

<h2>Hello!</h2>

The answer is:

The ball will hit the ground after $t=2.47s$

Since we are given a quadratic function, we can calculate the roots (zeroes) using the quadratic formula. We must take into consideration that we are talking about time, it means that we should only consider positive values.

So,

$\frac{-b+-\sqrt{b^{2} -4ac} }{2a}$

We are given the function:

$h=-5t^{2}-3t+38$

Where,

$a=-5\\b=-3\\c=38$

Then, substituting it into the quadratic equation, we have:

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