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3 years ago

What two numbers multiply together and equal 48 and add together and equal -16

Mathematics

2 answers:

attashe74 [19]3 years ago

7 0

-4 x -12 = 48
-4 + -12 = -16

The answer is -4 and -12

salantis [7]3 years ago

6 0

-4,-12 To solve this you should first know that both numbers have to be negative because 16 is negative and 48 is postive. So make a list deciding which one fits both standards.

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Y is directly proportional ( x+2)² <br> when x = 8 y= 250 <br> find y when x = 4

sladkih [1.3K]

Answer:

y=90 when x=4

Step-by-step explanation:

We are given that

$y\propto (x+2)^2$

When x=8 and y=250

We have to find the value of y when x=4

$y=k(x+2)^2$

Where k= Proportionality constant

Substitute the values

$250=k(8+2)^2$

$250=100k$

$k=\frac{250}{100}$

$k=5/2$

Now, substitute x=4 and k=5/2

Then, we get

$y=\frac{5}{2}(4+2)^2$

$y=\frac{5}{2}\times 36$

$y=90$

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4 years ago

Simplify the expression by using a double-angle formula or a half-angle formula. (a) 2 tan(5°) 1 − tan2(5°)

antoniya [11.8K]

The question is related to trigonometry and we have to use the formula of double angle .

Here we use double angle formula of tangent function which is

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Given expression is

$\frac{2tan (5 \degree)}{1-tan^2(5 \degree)}$

Comparing it with double angle formula, we will get x = 5

SO the required expression is equal to

$\frac{2tan (5 \degree)}{1-tan^2(5 \degree)} =tan(2*5 )$

$\frac{2tan (5 \degree)}{1-tan^2(5 \degree)} =tan(10 )$

So the answer is tan(10) .

6 0

4 years ago

Wht is the simplify of 16x-12x

Mars2501 [29]

4x is the simplify version

7 0

3 years ago

Read 2 more answers

Self explanatory solve porfavor

inessss [21]

2(2/5) divided 2(-1/5)

we do PEMDAS meaning parenthesis first

2(2/5) = 4/5(calculator)

2/1x2/5=4/5

now

2/1x-1/5=-2/5

now we do division

4/5/-2/5 we get -2

-2

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3 years ago

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This is true. It would only be incorrect if dilations were there, because dilations don’t keep the shapes congruent.

8 0

3 years ago