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3 years ago

I NEED HELP WORTH THIS there is one more option of 6,6 also

Mathematics

1 answer:

grigory [225]3 years ago

7 0

Answer:

C. (2,4)

Step-by-step explanation:

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WHAT WOULD THIS BEEEE!??

liq [111]

Answer:

Angle 4 = 99 degrees

Step-by-step explanation:

Vertical Angles add up to 180

180-81= 99

4 0

3 years ago

Find the value c that will make 9x^2 +30x+c a perfect square trinomial

anzhelika [568]

Answer:

$c = 25$

Step-by-step explanation:

Given :-

A quadratic equation is given to us.
The equation is 9x² + 30x + c .

And we need to find out the value of c for which the given trinomial is a perfect square. On looking at the given expression all the terms are having positive signs before them .So we can rewrite it on the basis of ,

Identity :-

$\implies (a+b)^2=a^2+b^2+2ab$

Let's try to set the equation on this Identity .

The firsr term is 9x² . We can write it as ,

$\implies 9x^2=(3x)^2$

Hence the middle term here should contain 3 and 2 as their factors. Let's Break the middle term .

$\implies 30x = 2.3x.5$

Therefore in order to make the whole expression as perfect square 5² must be replaced by c . The expression would become ,

$\implies 9x^2+30x + 5^2 \\\\\implies (3x)^2+2.3x.5 +5^2\\\\\implies (3x+5)^2$

Hence the value of c should be 25 .

8 0

3 years ago

Read 2 more answers

Please help ill give brainliest

maks197457 [2]

Answer:

divide by -3 and reverse it

Step-by-step explanation:

Trust me I got u fam

3 0

3 years ago

Read 2 more answers

[9 X (10 – 2)] = [2 + (5 x 2)]

Iteru [2.4K]

Answer:

x=3

Step-by-step explanation:

Simplifying

9 + -2(x + -5) = x + 10

Reorder the terms:

9 + -2(-5 + x) = x + 10

9 + (-5 * -2 + x * -2) = x + 10

9 + (10 + -2x) = x + 10

Combine like terms: 9 + 10 = 19

19 + -2x = x + 10

Reorder the terms:

19 + -2x = 10 + x

Solving

19 + -2x = 10 + x

Solving for variable 'x'.

Move all terms containing x to the left, all other terms to the right.

Add '-1x' to each side of the equation.

19 + -2x + -1x = 10 + x + -1x

Combine like terms: -2x + -1x = -3x

19 + -3x = 10 + x + -1x

Combine like terms: x + -1x = 0

19 + -3x = 10 + 0

19 + -3x = 10

Add '-19' to each side of the equation.

19 + -19 + -3x = 10 + -19

Combine like terms: 19 + -19 = 0

0 + -3x = 10 + -19

-3x = 10 + -19

Combine like terms: 10 + -19 = -9

-3x = -9

Divide each side by '-3'.

x = 3

Simplifying

x = 3

7 0

3 years ago

Simplify 3(x+1)/(x+1)2

xenn [34]

Answer:

$\frac{3(x + 1)}{ {(x + 1)}^{2} } \\ = \frac{3(x + 1)}{(x + 1)(x + 1)} \\ = \frac{3}{(x + 1)}$

5 0

3 years ago

Read 2 more answers