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REY [17]
2 years ago
7

Factor 5x^2-21x-20.

Mathematics
1 answer:
ZanzabumX [31]2 years ago
3 0

Answer: (5x+4)(x-5)

Step-by-step explanation:

:)

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25, 34, 46, 37, 33, 42, 40, 37, 34, 49, 73, 46, 45, 45, 5. how many outliers do these data contain?
yKpoI14uk [10]
2: 73 and 5
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6 0
3 years ago
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Julie and her brother go to Atlanta to ride the Sky View Ferris wheel. It measures 200 feet in diameter. I want to know the dist
Zinaida [17]

Answer:

a) Circumference of Ferris wheel.

b) \text{Circumference} = \pi d

c) 628 feet

Step-by-step explanation:

We are given the following in question:

Diameter of Ferris Wheel = 200 feet

a) Distance around Ferris wheel

The distance around Ferris wheel is given by the circumference of Ferris wheel.

b) Formula to calculate circumference

\text{Circumference} = \pi d

where d is the diameter of he wheel.

c) Distance traveled in one rotation

This will be given by the circumference of the Ferris wheel.

\text{Distance} = \pi d = 3.14\times 200 = 628\text{ feet}

Thus, the distance traveled in one rotation is 628 feet.

8 0
2 years ago
Tierra bought 4 3/8 yards blue ribbon and 2 1/8 yards yellow ribbon for a craft project. How much more blue ribbon than than yel
PolarNik [594]
She bought 2 1/4 more blue ribbon.

4 3/8 - 2 1/8 = 2.25
2.25= 9/4
9/4= 2 1/4

-Katie ;)
4 0
3 years ago
Read 2 more answers
Solve the equation x^2-4x+85=0
lara [203]
Can't factor
use quadratic
for
ax^2+bx+c=0
x=\frac{-b+/- \sqrt{b^2-4ac} }{2a}

given
1x^2-4x+85=0
a=1
b=-4
c=85

x=\frac{-(-4)+/- \sqrt{(-4)^2-4(1)(85)} }{2(1)}
x=\frac{4+/- \sqrt{16-340} }{2}
x=\frac{4+/- \sqrt{-324} }{2}
x=\frac{4+/- (\sqrt{-1})(\sqrt{324}) }{2}
remember that √-1=i
x=\frac{4+/- i(\sqrt{324}) }{2}
x=\frac{4+/- i(18) }{2}
x=2+/-9i

x=2+9i or x=2-9i
3 0
3 years ago
X-1=-5-x if you know please
melisa1 [442]

Answer:

X will be -2

Step-by-step explanation:

Divide each side by factors that don't contain the variable

6 0
2 years ago
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