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2 years ago

Which of the following is a second degree trinomial? 3x + 8 -4x2 - 6x + 7 6x4 + 4x2 - 7 5x2 + 10

Mathematics

1 answer:

natta225 [31]2 years ago

8 0

Answer:

the first one

Step-by-step explanation:

because it is

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1. A group of 12 people enjoy different hobbies, 2 enjoy art, 6 enjoy knitting and 4 enjoy quilting. A person is chosen at rando

Ede4ka [16]

1) 5/6
2) 2/5
3)2/3
4)23/30
5).3

7 0

2 years ago

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I need help please!!

mina [271]

Step-by-step explanation:

$\frac{ - 1}{5} \times \frac{4}{7}$

$\: \: \: \: \: \frac{ - 4}{35}$

$\frac{ - 1}{2} \times \frac{4}{5}$

$\frac{ - 2}{5}$

$\frac{ - 3}{2} \times \frac{7}{ - 10}$

$\frac{21}{20}$

$\frac{1}{2} \times \frac{7}{8}$

$\frac{7}{16}$

$\frac{ - 9}{5} \times \frac{1}{2}$

$\frac{ - 9}{10}$

$\frac{ - 32}{9} \times \frac{1}{3}$

$\frac{ - 32}{27}$

$\frac{ - 2}{1} \div \frac{ - 19}{5}$

$\: \: \: \: \: \: \frac{ - 2}{1} \times \frac{5}{ - 19}$

$\: \: \: \: \frac{ - 10}{19}$

$\frac{1}{9} \div \frac{ - 4}{3}$

$\frac{1}{9} \times \frac{3}{ - 4}$

$\frac{ - 1}{12}$

$\frac{13}{7} \div \frac{23}{4}$

$\frac{13}{7} \times \frac{4}{23}$

$\frac{52}{161}$

$\frac{ - 37}{10} \div \frac{9}{4}$

$\frac{ - 37}{10} \times \frac{4}{9}$

$\frac{ - 74}{45}$

5 0

3 years ago

Read 2 more answers

PLS HELP I WILL GIVE BRAINLEST

yan [13]

Answer:

he earns 69 dollars

Step-by-step explanation:

1st grade question now give brainliest 5 stars and heart

6 0

2 years ago

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The path of a football can be modelled by the equation, h=-10d2+120d , where h represents the height, in metres, of the football

Marta_Voda [28]

Answer:

12 m

Step-by-step explanation:

The path of a football has been modeled by the equation:

$h= -10d^2+120d$

where h represents the height and d represents the horizontal distance.

When the ball lands, it means that its height is back at 0 metres. This means that we have to find horizontal distance, d, when height, h, is 0.

=> $0= -10d^2+120d$

$=> 10d^2 - 120d = 0$

$d(10d - 120) = 0$

∴ d = 0 m

and

10d - 120 = 0

=> d = 120 / 10 = 12 m

There are two solutions for d when h = 0 m.

The first solution (d = 0 m) is a case where the ball has not been thrown at all. This means the ball has not moved away from the football player and it is still on the ground.

The second solution is the answer to our problem (d = 12 m). The ball lands at a horizontal distance of 12 m

3 0

3 years ago

Mr. Mandel gave his class 12 minutes to read. 5 1/2 pages in that time. At what rate, in pages per hour, did Claire read?

Eva8 [605]

5 1/2 pages in 12 minutes.
11/2 pages in 12 minutes

How many pages in an hour?
well, an hour has 60 minutes

Let's write a proportion
11/2 / 12 = x/60
cross multiply
(11/2 * 60) = 12x
330 = 12x
divide both sides by 12
27.5 or 27 1/2 = x

27.5 pages per hour.

Hope this helps

8 0

2 years ago