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2 years ago

Evaluate the expression 5x-3x for x = 2

2 answers:

6 0

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Expression
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5x - 3x

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Substitute x = 2
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5 (2) - 3(2)
= 10 - 6
= 4

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Answer: 4
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Alona [7]2 years ago

3 0

Substitute any x that you see for a 2

5(2)=10
3(2)=6

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Peter, Jan, and Maxim are classmates. Their total score for the last test was 269. Peter's score was more than the sum of Jan's

Goshia [24]

Answer:

135

Step-by-step explanation:

Given that :

Total score obtained by Peter, Jan and Maxim = 269

Let :

Peter's score = x

Jan's score = y

Maxim's score = z

x + y + z = 269

x > (y + z)

For x to be greater Than y + z ;

Then x > (269 / 2) ; x > 134.5

The least possible x score is 135

Hence, Peter's least possible score is 135.

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2 years ago

BRAINLIEST!!!

goldenfox [79]

Answer: $\frac{8}{17}$ or 8:17

Step-by-step explanation:

For any angle x (other than right angle) in a right triangle ,the trigonometric ratio of sin x is given by :-

$\sin x=\frac{\text{side opposite to x}}{\text{Hypotenuse}}$

Given: A right triangle with hypotenuse = 68 units

The side adjacent to S = 60

Let h be the side opposite to S, then using Pythagoras in the given right triangle, we get

$(68)^2=60^2+h^2\\\\\Rightarrow\ h^2=68^2-60^2\\\\\Rightarrow\ h^2=1024\\\\\Rightarrow\ h=\sqrt{1024}=32$

Thus, the side opposite to S = 32 units

Now, the trigonometric ratio for sin S is given by :-

$\sin S=\frac{\text{side opposite to S}}{\text{Hypotenuse}}\\\\\Rightarrow\sin S=\frac{32}{68}=\frac{8}{17}$

Hence, the trigonometric ratio for sin S = $\frac{8}{17}$ or 8:17

5 0

2 years ago

2. help now!!!!!!!! A certain TV costs $599.99 at Best Buy. On black Friday, it is on sale for 40% off. What is the price of the

Arturiano [62]

Answer:

$360. (I believe so, anyways.)

Step-by-step explanation:

Original Price x Discount % / 100

Discount = 600 × 40/100

24000/100

$600 - $240

Final Price = $360

8 0

2 years ago

If f=3,8 = 5, h= 10 find the value of<br>2f-g + h

Viktor [21]

That makes no sense. Can you rephrase the question?

8 0

2 years ago

What sine function represents an amplitude of 4, a period of pi over 2, no horizontal shift, and a vertical shift of −3?

mixer [17]

Answer:

$f(x) = 4sin(\frac{\pi}{2}x) - 3$ , the third one

Step-by-step explanation:

Explaining the sine function:

The sine function is defined by:

$S = Asin(p(x - x_{0})) + V$

In which A is the amplitude, $p = \frac{2\pi}{N}$ is the period, $x_{0}$ is the horizontal shift and V is the vertical shift.

So, in your problem:

The amplitude is 4, so A = 4.

The period is $\frac{\pi}{2}$ , so $p = \frac{\pi}{2}$ .

There is no horizontal shift, so $x_{0} = 0$ .

The vertical shift is −3, so V = -3.

The sine function that represents these following conditions is

$f(x) = 4sin(\frac{\pi}{2}x) - 3$ , the third one

4 0

2 years ago