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Bond [772]
3 years ago
12

Jessica conducts an experiment. She flips a coin 100 times. In her experiment she gets heads 40 times and tails 60 times. Based

on her results, if she flipped the coin another 50 times, she should expect to flip heads _____ times.
Mathematics
2 answers:
Llana [10]3 years ago
8 0

Answer:

i think it would be 90 am sorry if i am wrong.

Step-by-step explanation:

egoroff_w [7]3 years ago
3 0

Answer:

20

Step-by-step explanation:

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What is the volume of a sphere with a radius of 7 cm? Sphere V = 4 3 πr3 1. Substitute the radius into the formula:    V = 4 3 π
netineya [11]

Answer:

1436.75504 or 1372/3π cm^3

Step-by-step explanation:

The volume of a sphere can be found using:

V = 4/3 πr^3

We know the radius is 7, so we can substitute 7 in for r

V = 4/3 π7^3

Evaluate the exponent

V = 4/3 π 343

If we want the answer in terms of pi, multiply the two other numbers, that are not pi: 4/3 and 343.

v= (4/3*343)π

v=1372/3π

If we want an exact answer, multiply 1372/3 and pi

v=1436.75504

So, the volume is 1436.75504 or 1372/3 π cm^3

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3 years ago
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What is the measure of angle x? 60 degrees 70 degrees 80 degrees 100 degrees
nadya68 [22]
X equals 60 degrees (80-20=60)

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3 years ago
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A salesperson earns a commission based on the number and type of vehicle sold. A person selling 6 cars and 3 trucks earns $4,800
madam [21]
4800 divide by 3=1600 (2 cars 1 truck)

4600-1600-3000 (6 cars)

3000 divide by 3 = 1000(2cars)

1000 times 2=2000(4 cars )

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$2,800 is your answer
8 0
2 years ago
The sides of a rectangle have length x+ 2 and width x -5. Which equation describes the area, A, of the rectangle in terms of x?​
Yakvenalex [24]

Answer:

The area in factored form is A=(x+2)(x-5).

The area in standard form is A=x^2-3x-10.

Step-by-step explanation:

The area of a rectangle is length times width.

So the area here is (x+2)(x-5).

They are probably not looking for A=(x+2)(x-5) because it requires too little work.

They probably want A in standard form instead of factored form.

Let's use foil:

First x(x)=x^2

Outer: x(-5)=-5x

Inner: 2(x)=2x

Last: 2(-5)=-10

---------------------Adding together:  x^2-3x-10.

The area in factored form is A=(x+2)(x-5).

The area in standard form is A=x^2-3x-10.

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2 years ago
Find the area of the circle. Round your answer to the nearest hundredth. 15 in.
Ede4ka [16]

well nearest hundredth is 3

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3 years ago
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