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3 years ago

Re-write the quadratic function below in Standard Form y = 9(x - 1)(x + 3)

Mathematics

1 answer:

Maksim231197 [3]3 years ago

4 0

Y=9(x^2+3x-x-3)
y=9(x^2+2x-3)
y=9x^2+18x-27

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PROBABILITY PROBLEM: Can anyone check my answers for this?

Julli [10]

A: it would be 2 fives outta 8 then he picked one more bill out so chances are 4 fives outta 16. making it 1/4 of a probability.

7 0

3 years ago

What is the diameter of a circle with a circumference of 220 ft

tino4ka555 [31]

Circumference of the circle is given as = 220 feet

We have to find the diameter.

Circumference is found as = 2 * PI * r

$220=2*3.14*r$

$220=6.28r$

r=35.03

Diameter is 2*radius

Diameter = $2\times35.03$ = 70.06

Hence, diameter of the circle is 70.06 feet.

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3 years ago

In how many ways can 4 boys and 4 girls be arranged in a row such that no two boys and no two girls are next to each other?(A) 1

nirvana33 [79]

Answer:

1152

Step-by-step explanation:

4 boys and 4 girls be arranged in a row such that no two boys and no two girls are next to each other.

Two boys and two girls are not next to each other. so one boy and one girl are next to each other in two ways.

BGBGBGBG, GBGBGBGB

4 boys are arranged in 4! ways and 4 girls are arranged in 4! ways

So number of ways = $2 \cdot 4! \cdot 4!=2 \cdot 24 \cdot 24=1152$

4 0

3 years ago

3 different problems, sorry these type confuse me

Art [367]

F [g(x)]
= 5(6x) - 1
= 30x - 1

g [f(x)]
= 6(5x - 1)
= 30x - 6

g [f (2)]
= 6 [5(2) - 1]
= 6 (10 - 1)
= 60 - 6
=54

5 0

3 years ago

Work out the value of x

Korvikt [17]

Answer:

117 degrees

Step-by-step explanation:

So we already know that one angle is 38 degrees, so we have that one. The angle, 101 is exterior, and we have to subtract 180 from that to get the interior angle. We get a difference of 79. Since the sum of a triangle's interior angles are 180, we have to add 38+79 to get 117. Then, we have to subtract it from 180 to get the value of the interior angle as 63 degrees. Because x is on the outside, we have to again subtract 63 from 180 to get the missing value of x as 117.

6 0

2 years ago

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