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2 years ago

Multiply and simplify

Mathematics

1 answer:

kirill [66]2 years ago

8 0

(w+5) (w-2)= w^2 - 2w + 5w - 10 = w^2 + 3w - 10.

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You start at (6, 7). You move up 2 units. Where do you end?

Vikki [24]

Answer:

(6,9) nice

Step-by-step explanation:

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2 years ago

If the quadratic equation x2+18x+74=0 is rewritten in the form (x−p)2=q, what is the value of q?

PilotLPTM [1.2K]

Answer:

Step-by-step explanation:

<u>Quadratic equation</u>

The quadratic equation can be written in several ways, one of the most-used is

$ax^2+bx+c=0$

To rewrite the equation in the form

$(x-p)^2=q$

we can complete squares and rearrange the terms as follows. The provided equation is

$x^2+18x+74=0$

The second term can be seen as

$2(x)(9)$

And the first two terms can be visualized as the square of a binomial

$x^2+2(x)(9)+81-81+74=0$

We have added and subtracted 81 to complete the square and not modify the equation. The new form of the equation is

$(x+9)^2-7=0$

Rearranging

$(x+9)^2=7$

Comparing with the general form written above, we find that

$\boxed{q=7}$

3 0

3 years ago

A jar contains 19 yellow, 23 brown, and 16 purple marbles. A marble is drawn at random.

beks73 [17]

Answer:

P(not brown) = 0.60

Step-by-step explanation:

You add all of them, then you subtract the amount of brown marbles.

7 0

3 years ago

In a right triangle, if cos(theta)=13/85', what is tan (theta)?

Luden [163]

Sin (x) = -13/15

Hope this is correct

3 0

2 years ago

Write the answer in simplest radical form

astra-53 [7]

Answer:

y = 9 $\sqrt{2}$ inches

Step-by-step explanation:

Since the base angles are congruent then the triangle is isosceles with both legs being equal.

Using Pythagoras' identity in the right triangle

y² = 9² + 9² = 81 + 81 = 162 ( take the square root of both sides )

y = $\sqrt{162}$ = $\sqrt{81(2)}$ = 9 $\sqrt{2}$

8 0

2 years ago