3 years ago

Find the product 15(-4) =

Mathematics

2 answers:

anygoal [31]3 years ago

6 0

-60 that is the answer to the question that was given

Ber [7]3 years ago

3 0

15·(-4) is -60, as the product of any positive number multiplied by a negative number is negative

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Brian reads 2/15 of his novel in 20 minutes if you read at the same rate what proportion of the novel can you read a one hour

Travka [436]

The answer is 6/15 or 2/5 not 6

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3 years ago

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Which polynomial function has a leading coefficient of 1 and roots 21 and 31 with multiplicity 1?

schepotkina [342]

Answer:

Which i think is the first one, there may just be a typing error.

Step-by-step explanation:

A polynomial of order n has the following format:

$f(x) = a(x - x_{0})(x - x_{1})...(x - x_{n-1})$

In which a is the leading coefficient, $x_{0}, x_{1},..., x_{n-1}$ are the roots.

If a root appears m times, they are said to have multiplicity m.

Leading coefficient of 1 and roots 21 and 31 with multiplicity 1

$f(x) = 1(x - 21)(x - 31)$

So the correct answer is:

$f(x) = 1(x - 21)(x - 31)$

Which i think is the first one, there may just be a typing error.

8 0

3 years ago

What is the answer for this question?

Len [333]

The correct answer is D

4 0

3 years ago

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I really need help! will give brainliest!!

TiliK225 [7]

Answer is A) AC= 20 and angle A=37°
Dilated by factor of 4 means enlarged by 4 ( multiply by 4)

The angle stays the same no matter how much you increase or decrease the size

And AC= 5 x4= 20

8 0

3 years ago

How do you find the exact value of sec θ if sin θ = -15/17 and 180 < θ < 270?

AnnyKZ [126]

For $180^\circ$ , we expect to have $\cos\theta$ . Then if $\sin\theta=-\dfrac{15}{17}$ , we have

$cos^2\theta+\sin^2\theta=1\implies\cos\theta=-\sqrt{1-\sin^2\theta}=-\dfrac8{17}$

$\implies\sec\theta=\boxed{-\dfrac{17}8}$

7 0

3 years ago