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3 years ago

HURRYYYYY

Mathematics

1 answer:

Troyanec [42]3 years ago

7 0

Answer:

B is correct.

Step-by-step explanation:

Quadratic Expression (Standard Form) is:

$\displaystyle \large{a {x}^{2} + bx + c}$

To say it simply, the expression must have 2 as the highest degree.

This means that if there are any higher or lower degrees than 2 then they are not quadratic expression.

A choice is not quadratic expression because it has 1 as the highest degree.

B choice is correct because 2 is the highest degree.

C choice is wrong because 3 is the highest degree.

D choice is wrong because it is not a polynomial.

Therefore, B is correct.

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there are 2 germs in a jar and they multiply by 2 every minute how many germs are there after a hour

Yanka [14]

Answer:

240

Step-by-step explanation:

1.) 60 times 2

There are 60 minutes in a hour and since there are 2 germs in the jar.

2.) 120 times 2

120 from the total, and 2 germs are made every minute, you multiply.

7 0

3 years ago

Combine like terms, 1)c+19-4 2)m+12-10

rewona [7]

1) Would be c+15 because you can combine 19-4

2) Would be m+2 because you can combine 12-10

8 0

3 years ago

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An equilateral triangle has has an era of 43.5 square feet the height is 8.5 feet what is the Perimeter of the triangle

enot [183]

Answer:

30.7 ft

Step-by-step explanation:

An equilateral triangle with area 43.5 has a height of 8.68 not 8.5

I will do the problem as written even though it is not a possible equilateral triangle

---------------------------------------------

a = (1/2)bh

43.5 = (1/2)b(8.5)

43.5 = 4.25b

b = 43.5/4.25

b = 10.2352941176

-----------------------

p = 3b

p = 3 * 10.2352941176

p = 30.7058823528

~ 30.7 ft

8 0

3 years ago

Jill flipped a coin 40 times. The coin landed as heads 28 times and tails 12 times. Based on her results, which of the following

ella [17]

There are many conclusions we can come to for this!

70% of the flips were heads, and 30% are tails

28/40 was heads, and 12/40 were tails

There were more heads than tails

There were 14 more heads than tails

:)

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3 years ago

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Light bulbs cost £2.90 each.

s344n2d4d5 [400]

Answer:

$2.60

Step-by-step explanation:

first you need to see how many time 2.90 goes into 20 it is 6, so then you multiply 2.90 times 6 and get 17.40. Lastly you subtract 17.40 from 20 to get 2.60

Hope this helps

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3 years ago

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