2 years ago

PLEASE HURRY I NEED HELP ON MY EXAM! 15PTS!

Mathematics

1 answer:

Wittaler [7]2 years ago

3 0

Answer:

I III and IV

Step-by-step explanation:

It cant be All four since yeah but im really sure that what i put is the answer

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Compare the rate at which each of the three students read.

laiz [17]

Answer:

here is the ANSWER-Connie : 1min = 200 words

Felicia : 1min = 260 words

Stew : 1 min = 265 words (8min = 2120 words, and 7min = 1855 words, so you minus 2120 - 1855 = 265 words)

STEW is the ANSWER

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2 years ago

The perimeter of a square is 32 centimeters. What is the length of one side?

Lubov Fominskaja [6]

L= length of one side of the square
Ok so we know the perimeter is 32 cm. Perimeter is the sum of all the sides of a shape. Now all four sides of a square are the same length. That means 4*L=32.
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2 years ago

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

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3 years ago

Use <, >, or = to compare these numbers. 3.08m and 3.8m

dolphi86 [110]

This will be
3.08<3.8 or
3.8>3.08.

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3 years ago

Read 2 more answers

Jim has CDs that he is going to give away. He lets his best friend choose 2 of the 8 CDs. How many different groups of 2 CDs are

stira [4]

6 cds

WORK: 8 - 2 = 6 CD

4 0

3 years ago