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3 years ago

Which shows where the function is decreasing? O A only O Conly O C and D O A and C

Mathematics

1 answer:

Tomtit [17]3 years ago

3 0

Answer is C only. When you increase X, the f(x) is going downwards.

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After learning the theoretical probability of a two sided coin landing on any one side, students work in groups to flip the coin

Bumek [7]

The answer c, because they got 9 out of 15 flips being heads. This probability is 0.6. The other answers are not accurate.

3 0

3 years ago

A ball is thrown in the air from a height of 3 m with an initial velocity of 12 m/s. To the nearest tenth of a second, how long

stepladder [879]

Answer: 1.4 seconds

<u>Step-by-step explanation:</u>

The equation is: h(t) = at² + v₀t + h₀ where

a is the acceleration (in this case it is gravity)
v₀ is the initial velocity
h₀ is the initial height

Given:

a = -9.81 (if it wasn't given in your textbook, you can look it up)
v₀ = 12
h₀ = 3

Since we are trying to find out when it lands on the ground, h(t) = 0

EQUATION: 0 = 9.81t² + 12t + 3

Use the quadratic equation to find the x-intercepts

a=-9.81, b=12, c=3

$x=\dfrac{-b \pm \sqrt{b^2-4ac}}{2a}\\\\\\x=\dfrac{-(12)\pm \sqrt{(12)^2-4(-9.81)(3)}}{2(-9.81)}\\\\\\x=\dfrac{-12\pm 16.2}{-19.62}\\\\\\x=\dfrac{-12+ 16.2}{-19.62}=-0.2\qquad x=\dfrac{-12- 16.2}{-19.62}=\large\boxed{1.4}\\$

Note: Negative time (-0.2) is not valid

4 0

3 years ago

If t-13 =52 then 52 =t-13

prisoha [69]

Yes this is true sure

t-13 =52 => 52 = t-13

hope helped

6 0

3 years ago

Read 2 more answers

I need help solving it please

MatroZZZ [7]

What you do here is replace is the given x value to find the y one

Like for the first box the y (top-to-down) would be found using y=3(-2)+4 which is gives y=-2

Applying the same for each in order:

(-2,-2)
(-1,0)
(0,4)
(1,7)
(2,10)

Ordered pairs are typed in (x,y) format like the answers I gave above

6 0

2 years ago

A=5b+8<br> Rearrange to make subject

Mumz [18]

AnswThe method is to separate the variable from everything else. That means getting the variable on one side of the equals sign and everything else on the other side. A=5B+8.

Subtract 8 from each side: A-8=5B.

Now divide each side by 5: (A-8)/5=B.

So B=(A-8)/5.

er:

Step-by-step explanation:

3 0

3 years ago