Sally flipped a penny 25 times and landed on heads 16 out of the 25 times. If she plans to flip the coin 100 times,
how many times can she expect to land on heads?

Answer:

x = 12

Step-by-step explanation:

Given a tangent and a secant from an external point to the circle.

Then the product of the external part of the secant and the entire secant is equal to the square of the measure of the tangent, that is

3x = 6² = 36 ( divide both sides by 3 )

x = 12

Answer:

7x = - 35

Step-by-step explanation:

Equation 1 :

11x - 3y = - 17

Equation 2 :

-4x + 3y = - 18

Equation 1 + 2

11x - 3y = - 17

-4x + 3y = - 18

_____________

11x - 4x - 3y + 3y = - 17 + (-18)

7x = - 35

Answer:

Step 1: Remove parentheses by multiplying factors.

= (x * x) + (1 * x) + (2 * x) + (2 * 1)

Step 2: Combine like terms by adding coefficients.

(x * x) = x2

(1 * x) = 1x

(2* x) = 2x

Step 3: Combine the constants.

(2 * 1) = 2

Step 4: Therefore, Simplifying Algebraic Expression is solved as

= x2 + 3x + 2.

Step-by-step explanation:

answer isx2 + 3x + 2.

Answer:

6

Step-by-step explanation:

Right now, the mean is 6.4 and the median is 6. If you take away 6, the mean would be 6.5 and the median will stay the same. The median will stay the same because when there is no middle number, you add the two closest numbers and divide by two.  

Hope it helped:)

Thea are a of rectangle is base times the height of the rectangle

Answer:

I believe x=2

Step-by-step explanation:

3x-6=-4x+8

7x=14

x=2

Answer:

im in paine from doing ixl so here is the answer its 1/3 bye

Step-by-step explanation:

paine

The required probability of picking a 4 from 3 4 5 6 is 1/4.

Probability is a measure of the likelihood or chance of an event occurring. It is a mathematical concept used to quantify the chance of a particular outcome or event happening, based on the total number of possible outcomes. Probability is usually expressed as a number between 0 and 1, with 0 indicating that an event is impossible, and 1 indicating that an event is certain to occur.

Here,
There are four cards in total, with one of them being a 4. Therefore, the probability of picking a 4 is:

P(4) = number of ways to pick a 4 / total number of cards

P(4) = 1/4

So the probability of picking a 4 is 1/4.

Learn more about probability here:

https://brainly.com/question/30034780

#SPJ2

Answer:

FV= $11,823.42

Step-by-step explanation:

Giving the following information:

Initial investment= $7,560

Interest rate= 0.05 / 4= 0.0125

Number of periods= 9*4= 36 quarters

To calculate the future value, we need to use the following formula:

FV= PV*(1+i)^n

FV= 7,560*(1.0125^36)

FV= $11,823.42

Answer:

75%

Step-by-step explanation:

3 is 75 the way to 4 so it would be 75%

Answer:

4

8

12

16

...............

Answer:

4,8,12,16

Step-by-step explanation:

.20×20=4 .40×20=8 and so on

Answer: 2

Step-by-step explanation:

Given

In a litter of 10 Puppies, 4 are black i.e.

[tex]\Rightarrow \dfrac{4}{10}\times 100=40\%\ \text{of puppies are black}[/tex]

In a litter of 5, there would be

[tex]\Rightarrow 5\times 40\%=5\times 0.4=2[/tex]

There are 2 black puppies

Answer:

im pretty sure the answer would be 40m

Step-by-step explanation:

Answer:

Area: 40m²

Step-by-step explanation:

The first thing we need to do in order to solve this problem is split the shape into three different rectangles. We are going to have one rectangle that is 3 m by 7 m, one that's 4 by 4, and one that is 3 by 1. We are now going to find the area of each one individually.

To find the area of a rectangle, you multiply the length by the width. So, for the first rectangle, you would multiply 7 and 3. This equals 21, so that is the area of the first rectangle. Repeat this for the other two rectangles, then add all the areas together and you will get the total area of this shape.

Remember, when you are finding the area of an object, you must always put the label and a squared sign next to the number!

7×3=21

4×4=16

3×1=3

21+16+3=40

Area = 40m²

I hope this is fairly easy to understand. Please let me know if you need any more help. Good luck and have a great morning!

45 × 30 ÷ 100 = 13.5

thats all

Answer:

3.64 ÷ 7 = 364 hundredths ÷ 7

3.64 ÷ 7 = 52 hundredths

3.64 ÷ 7 = 0.52

Step-by-step explanation:

Answer:

Choice number 3

Step-by-step explanation:

Because look at the length of 8 on one side and notice the other side is a little longer

Answer: length is 30

Step-by-step explanation:

length times width is area

A= L * W

W= 2/3L

600= L * [tex]\frac{2}{3}[/tex]L

[tex]600=\frac{2}{3} L^{2} \\\frac{3}{2} (600)=L^{2} \\900=L^{2} \\30=L[/tex]

Answer:

100

Step-by-step explanation:

y = % · x

y = 40% · 250

y = 0.40 · 250

y = 100

Answer:

x = 6   y = 5

Step-by-step explanation:

X VALUE

3x+11 = 5x-1

12 = 2x

x= 6

Y VALUE

4y-1 = 19

4y = 20

y = 5

Answer:

5

Step-by-step explanation:

Answer:

144?

Step-by-step explanation:

Answer:

1,000 hits

Step-by-step explanation:

Saturday: 2,000 hits

Friday: 1,000 hits

2,000 - 1,000 = 1,000

Answer: 1,000 hits

Step-by-step explanation:

I just took the test, it's right.

Answer:

14.4 m / s

Step-by-step explanation:

=distance between the car

=0.8 × 9

=7.2m

=time taken

=0.5s

=speed

=distance/time

=7.2m/0.5s

=14.4 m / s

Answer: 5 hours  

Step-by-step explanation:

Carl paid $58 dollars in total and this included the fixed dollar fee and the variable amount of $9.

To find the number of hours, first deduct the fixed component:

= 58 - 13

= $45

$45 was spent as a result of hourly fee. The number of hours is therefore:

= Total hourly cost/ Cost per hour

= 45 / 9

= 5 hours  

Answer:

the probibiltiy that your roll 3 is 1/6  and 5 is 1/6 that is sepreate if its both together it is i belive 2/6

Step-by-step explanation:

Answer:

2(2t+3)

Step-by-step explanation:

Given the expression;

5t + 10 - 4 - t

Combining the like tems;

5t - t + 10 - 4

= (5t-t) + (10-4)

= 4t + 6

Factor out 2

= 2(2t+3)

This gives the required expression

Answer:

4t+6

Step-by-step explanation:

Answer:

Step-by-step explanation:

120 is going to be 45 + x.

120 - 45 = x

120 - 45 = 75.

Answer:

Im pretty sure your answer is A) 3 pounds is $11.98

Answer:

the slant height of the pyramid = 8.54 in

Step-by-step explanation:

The slant height, height and half of the side of square makes a right angle triangle in a square base pyramid.

Let slant height be l, then 3(base), 8(perpendicular) and l(hypotenuse) make a right angle triangle.

Therefore by Pythagoras principle

l^2 = 8^2+ 3^2

⇒l = √(64+9) = √73

l = 8.54 in

the slant height of the pyramid = 8.54 in