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3 years ago

WILL MARK BRAINLIEST

Mathematics

2 answers:

Nataliya [291]3 years ago

5 0

I believe the second one : drawing a number from a hat, not replacing it, and then drawing a second number

Fiesta28 [93]3 years ago

4 0

Answer:

The first choice.

Step-by-step explanation:

An independent event is an event where the probability of the event doesn't affect the probability of the other.

Randomly choosing a marble from a bag, replacing it, and choosing again reaching into your pocket and pulling out two dimes out of 20 coins.

- This is an independent event since the probability of the first event doesn't affect the probability of the second event in any way.

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Rename the quadratic function f(x)=-2(x+4)^2-5 in standard form.

Contact [7]

Answer:

function: x=-4

y-intercept: f(0)=-37

Step-by-step explanation:

hope this helps!

8 0

3 years ago

If θ is an angle in standard position that terminates in Quadrant IV such that cosθ = 3/5, then cosθ/2 = _____. -

Sveta_85 [38]

Answer:

$cos \frac{\theta}{2}= 0.894$ .

Step-by-step explanation:

Given:

$cos\ \theta= \frac35$

We need to find $cos \ \frac{\theta}{2}$

Solution:

$cos\ \theta= \frac35$

First we will find the value of $\theta$ .

Now taking $cos^{-1}$ on both side we get;

$\theta= cos^{-1} \ \frac{3}{5}\\\\\theta = 53.13$

Now we will find the $\frac{\theta}{2}$ .

$\frac{\theta}{2}$ = $\frac{53.13}{2} = 26.565$

Now we will find $cos \ \frac{\theta}{2}$ we get;

$cos \frac{\theta}{2}=cos\ 26.565 = 0.894$

Hence $cos \frac{\theta}{2}= 0.894$ .

4 0

3 years ago

A printing company uses the formula C=0.5x+10 to find the cost of printing x business cards which equation correctly solves the

Misha Larkins [42]

C=0.5x + 10

Where:
C = total cost of printing
x = number of business cards printed
0.5 = variable cost of printing, this cost depends on the number of business card
10 = fixed cost of printing, this cost stays the same regardless of the number of business card printed.

C = 0.5x + 10 ; derive the formula of x.

C - 10 = 0.5x

(C - 10)/0.5 = x

3 0

4 years ago

Read 2 more answers

The formula d-2r can be used to find the distance(d) traveled after 2 hours when driving at rate r.

krek1111 [17]

Answer:

A. d/2 = r

B. r=65 miles/hour

Step-by-step explanation:

A. d/2 = 2r/2

B. Using the formula you found for R it is

130/2= r, therefore r = 65

7 0

3 years ago

3÷1/3+1= PLEASE HELP!!!!!

Alenkinab [10]

Answer:

9+1=10 following bodmas rule

3 0

3 years ago