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wariber [46]
3 years ago
5

Just number 8! please answer asap. it’s due tmr!!

Mathematics
1 answer:
Furkat [3]3 years ago
8 0
3 1/4 divided by 8 convert mixed number to an improper fraction

13/4 divided by 8

Dividing is a equivalent to multiplying with the reciprocal
13/4x1/8

Multiply the fractions

13/32

Answer

13/32
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Sandra swims the 100-meter freestyle for her school’s swim team. Her state’s ranking system awards 3 points for first place, 2 p
Elina [12.6K]

Answer:

2.25

Step-by-step explanation:

The total frequency is:

20 + 12 + 6 + 2 = 40

Calculate the probability of each score:

P(X=3) = 20/40 = 0.50

P(X=2) = 12/40 = 0.30

P(X=1) = 6/40 = 0.15

P(X=0) = 2/40 = 0.05

So the expected value is:

E = (3)(0.50) + (2)(0.30) + (1)(0.15) + (0)(0.05)

E = 2.25

5 0
3 years ago
Write the fraction 3 15/25 as a decimal and percent
Allushta [10]

Answer

Decimal is 3.6

Percent is 360%

Step-by-step explanation:

5 0
3 years ago
Read 2 more answers
Select the graph of y=cot x.
Kisachek [45]

Because of the vertical asymptote and the change in concavity, we conclude that the correct option is B.

<h3>Which is the graph of cotangent of x?</h3>

Remember that cot(x) = 1/tan(x).

Then we can rewrite:

cot(x) = cos(x)/sin(x).

We know that for x = 0, we have:

cot(0) = cos(0)/sin(0) = 1/0

Then we have a vertical asymptote that tends to ± infinity.

The only graph that meets this condition is the second and the third one, and by the curvature (we need to have a change of concavity/convexity) in the tangent function.

From that, we conclude that the correct option is B.

If you want to learn more about trigonometric functions:

brainly.com/question/8120556

#SPJ1

7 0
2 years ago
HELP ME PLEASE CANT UNDERSTAND!!!!
pshichka [43]

Answer:

i can,t see

Step-by-step explanation:

7 0
3 years ago
Solve for x.<br><br>7(x + 2) = 6(x + 5)
Helen [10]

Let's solve your equation step-by-step.

7(x+2)=6(x+5)

Step 1: Simplify both sides of the equation.

7(x+2)=6(x+5)

(7)(x)+(7)(2)=(6)(x)+(6)(5)(Distribute)

7x+14=6x+30

Step 2: Subtract 6x from both sides.

7x+14−6x=6x+30−6x

x+14=30

Step 3: Subtract 14 from both sides.

x+14−14=30−14

x=16

Answer:

x=16

4 0
3 years ago
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