3 years ago

Another Math problem !!

Mathematics

1 answer:

3241004551 [841]3 years ago

4 0

C.
$- x {}^{2} + 4x + 6$

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On a piece of paper graph y < 2x - 3 then determine

andrezito [222]

Answer

3.5

Step-by-step explanation:

y < 2x - 3 = 3.5

2x is greater than y and y is an unknown value you can solve this by using a two step equation

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3 years ago

If sin tetha=root3/2, what is cos tetha?

Minchanka [31]

Answer:

The value of cos Ф is ± $\frac{1}{2}$

Step-by-step explanation:

There are important rules for sin Ф and cos Ф

sin²Ф + cos²Ф = 1

sin²Ф = 1 - cos²Ф

cos²Ф = 1 - sin²Ф

∵ sin Ф = $\frac{\sqrt{3}}{2}$

∴ sin²Ф = $(\frac{\sqrt{3}}{2})^{2}$

∴ sin²Ф = $\frac{3}{4}$

→ By using the third rule above

∵ cos²Ф = 1 - sin²Ф

∴ cos²Ф = 1 - $\frac{3}{4}$

∴ cos²Ф = $\frac{1}{4}$

→ Take square root for both sides

∴ cos Ф = ± $\frac{1}{2}$

∴ The value of cos Ф is ± $\frac{1}{2}$

6 0

3 years ago

6) A bag contains 4 red marbles, 3 green, 5 blue. Someone offers you a game : If you pick red marble you win $4, if blue loose $

fomenos

Answer:

Step-by-step explanation:

i just need 11 more than ill be fine

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2 years ago

The art club had an election to select a president. 57 members voted in the election and 19 did not vote. What percentage of the

laila [671]

Answer:

75% voted

Step-by-step explanation:

you add the 75 to 19 to figure out the total amount of people in the club.

75+19=76

Then you divide the people who voted which is 57 by the total amount of people in the club which is 76

57/76=0.75

then you move the decimal two places to the left and you get 75%

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2 years ago

What is the midpoint of the x-intercepts of<br> f(x) = (x – 2)(x – 4)?

emmasim [6.3K]

Answer:

(3,0)

Step-by-step explanation:

The axis of symmetry is midway between the roots

3 0

3 years ago

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