Probability of a____ event is1..

Answer:

19.5

Step-by-step explanation:

15 + 4.5 = 19.5

24 - 4.5 = 19.5

Answer:

19.5

Step-by-step explanation:

You need to find the average of these 2 numbers to find the "middle number".

(15+24)÷2=

39÷2=

19.5

The "middle number" is 19.5

Hey there! :)

Answer:

(2, -2)

Step-by-step explanation:

-2x + y = -6

4x + 3y = 2

We can begin by setting the first equation equal to y:

-2x + y = -6

Add 2x to both sides:

y = 2x - 6

Plug this equation for y into the second equation:

4x + 3(2x - 6) = 2

Distribute:

4x + 6x - 18 = 2

Combine like terms:

10x = 20

x = 2

Plug the value of 'x' into an equation to solve for 'y':

-2(2) + y = -6

-4 + y = -6

y = -2

Therefore, the solution is (2, -2)

Answer: False.

Step-by-step explanation: The actual mass for a liter of water would be a kilogram, which is 1,000 grams.

Answer:

Step-by-step explanation:

Notice that the measure of angle 5 is congruent, or equal to, the measure of angle 1. You entered this in one of your previous steps. Since the measure of Angle 1 is CONGRUENT to the measure of Angle 5, you can substitute Angle 5 for Angle 1.

Similarly, the measure of Angle 3 is congruent to Angle 6. So you can write that the m(Angle 5) + m(Angle 2) + m(Angle 6) = 180. By method of substitution.

I'm not exactly sure if this is the right order they want you to do it, however I hope this helps.

Answer: 1/4

Step-by-step explanation:

Let the volume of mixture (6%fat) in cup is 100cc

x cc be the volume of cream (18% fat) in the mixture.

∴

(100−x) cc be the volume of milk (2% fat) in the mixture.

x * 0.18+(100−x) * 0.02=100

⋅0.06 or 0.18x − 0.02x = 6−2 or 0.16x

= 4 or x=25 cc = 25%

Answer:

D. Nine months

Step-by-step explanation:

Simple interest=principal×rate×time

Principal=$1800

Rate=4.5%

Time=?

Interest=$60.75

Simple interest=principal×rate×time

60.75=1800×4.5×t/100

60.75=8100t/100

60.75=81t

t=60.75/81

t=0.75 year

0.75 years=9 months

Answer: b) increasing for x < -4/3 and x > 4/3

                    decreasing for -4/3 < x < 4/3

Step-by-step explanation:

Graph the equation and the follow the curve from left to right.  When you are going up, it is increasing.  When you are going down, it is decreasing.

see the image below.  Red is increasing. Blue is decreasing.

The vertices occur when x = -4/3 and x = 4/3

Answer:

[tex]ff(-3)=-17[/tex]

Step-by-step explanation:

Image attached below.

Answer:

True

Step-by-step explanation:

Yes! All integers "are" rational numbers. They can be expressed in the form of p/q.

Hope this helps :D

Don't hesitate asking anything regarding this.

Answer:

Yes

Step-by-step explanation:

Rational numbers are numbers that can be written as a fraction.

Integers are 1 2 3 4 5 and even -5 -4 -3 -2 -1, they can all be written as fractions.

Answer:

A=1.5 units²

Step-by-step explanation:

a²+b²=c²

2.5²+1.5²=c²

a²+2.25=6.25

a²=4.00

a=2

A=1/2 x b x h

A=1/2 x 1.5 x 2

A=1.5 units²

Answer:

1.5

Step-by-step explanation:

Use the pythagorean theorem.  a^2+b^2=c^2.  a and b are the legs, or the shorter sides of the triangle.  If you don't know which ones are shorter, just know that c is opposite of the right angle which is 2.5 in this case.  So c is 2.5 and a is 1.5.  Now you plug the values into the equation

1.5^2+b^2=2.5^2

2.25+b^2= 6.25 .Simplify the equation

b^2= 4 .Subtract 2.25 from both sides.

b= 2.  Square root both sides.  

Based on the picture, a is the base and b is the height.  The area of a triangle is 1/2(bh) .You already know the base and height you you plug it in again

1/2(1.5*2)= 1/2(3)= 1.5  

Answer:

The measure of angle a is 43 degrees.

Step-by-step explanation:

Angle P is congruent to Angle R. A triangle's angles add up to 180 degrees. 47*2=94. 180-94=86 degrees. 86/2=43 degrees.

Answer: 43°

Step-by-step explanation:

The degree of a triangle adds up to 180. We are given an angle of 47 and there is a right angle of 90

We now have 90 + 47 + a = 180

137 + a = 180

a = 43

Answer:

80a^9 + 70a^8

Step-by-step explanation:

Use the distributive property and multiply each term in the expression by 10a7

10a7(8a2 + 7a)

80a9+70a8

Answer:

I) |xz| ≈ 28.6 km

II) |yz| ≈ 34.8 km

Step-by-step explanation:

Let's assume that the position of ship due south of x is z (aà pictor representation of the question is attached)

|xy| = 20 km, |xz| = ?, |yz| = ?, θ(y) = 55°

Using Trigonometric ratio - SOHCAHTOA

I) Tan θ = |xz| ÷ |xy| ⇒ Tan 55° = |xz| ÷ 20

|xz| = 20 * Tan 55 = 20 * 1.428

|xz| = 28.56 km

|xz| ≈ 28.6 km

II) Cos θ = |xy| ÷ |yz| ⇒ Cos 55° = 20 ÷ |yz|

|yz| * Cos 55° = 20 ⇒ |yz| = 20 ÷ Cos 55°

|yz| = 20 ÷ 0.574 = 34.84 km

|yz| ≈ 34.8 km

Answer:

The 1st graph

Step-by-step explanation:

When you graph the equation in a graphing calc, you should be able to see that the graph most similar would be the 1st one.

Answer:

w = r1r2t is the correct answer which would be the letter C. This is the one that is not algebraically correct.

Step-by-step explanation:

When solving this equation for t the step w= r₁r₂t would not be algebraically correct.

It is defined as the relation between two variables, if we plot the graph of the linear equation we will get a straight line.

If in the linear equation, one variable is present, then the equation is known as the linear equation in one variable.

The following are the basic principles and steps to summarize any linear algebra statement:

Erase all packaging symbols, such as parenthesis and parenthesis, by dividing factors.

Using the exponent rule, grouping can be rule out if the words contain decimals.

To merge words, omit or add similar pictures.

It is given that,

The work accomplished by two people working on the same task for the same amount of time but at different rates is given by the equation,

w=r₁t+r₂t

Taking t common,

w=(r₁+r₂)t

Rearrange the equation as

t=w / (r₁+r₂)

Thus, when solving this equation for t the step w= r₁r₂t would not be algebraically correct.

Learn more about the linear equation here:

brainly.com/question/11897796

#SPJ2

Answer:

A

Step-by-step explanation:

The solution to a system of equations given graphically is at the point of intersection of the 2 lines.

If the lines are parallel then they never intersect, thus there can be no solution.

Answer:

ОА.

There is no solution

Step-by-step explanation:

If lines are parallel, they will have no common points, so no solution

Answer:

(- 42.8π/√232)m²

Step-by-step explanation:

For any function, y = f(x), we approximately from a to a + ∆x

We can make use of the formula

∆y = f'(a)∆x

Where S = πr√(r² + h²)

We are asked to find S

h = 6m

r = decreases from 14m to 13.9

S = d/dr[ πr√(r² + h²)] ×(13.9 - 14)

Where h = 36m

S = π d/dr [ r √(r² + 6²)] × (13.9 - 14)

S = π d/dr [ r √(r² + 36)] × (13.9 - 14)

Where r = 14m

S = π [√(r² + 36) + r²/√(r² + 36)] × (13.9 - 14)

S = π [√(14²+ 36) + 14²/√(14² + 36)] × (13.9 - 14)

S = π [√(196+ 36) + 196/√(196 + 36)] × (13.9 - 14)

S = π[√232 + 196/√232] × (13.9 - 14)

S = π × - 0. 1 [√232 + 196/√232]

Collecting like terms

S = π × - 0. 1 × 1/√232 [232 + 196]

S = π × - 0. 1 × 1/√232[428]

S =(- 42.8π/√232)m²

Answer:

30cm

Step-by-step explanation:

0.25 times 120 miles equals 30 cm

Answer:

Step-by-step explanation:

Answer:

Neither

Step-by-step explanation:

After substituting the ordered pair into the equation, none of the pairs satisfy the equation

because 6(3)+3(-2)=12 and 6(2)+3(2)=18.

Answer:

y = 2x + 5

Step-by-step explanation:

Step 1: Find slope

m = (3-1)/(-1+2) = 2

Step 2: Find y-intercept

(0, 5)

Step 3: Write in slope-intercept form

y = mx + b

y = 2x + 5

And we have your answer!

Answer:

y = 2x + 5

Step-by-step explanation:

We can see the point (-1, 3) and the y-intercept (0, 5). Slope intercept form is y = mx+b, where m is the slope and b is the y-intercept. With this, we know that b = 5. We can plug in the point (-1, 3) with -1 as x and 3 as y to find m. Doing so gives us 3 = -1m+5. This simplifies to -1m = -2, and m = 2. We can now plug in m to get the equation y = 2x + 5.

Answer:

38

Step-by-step explanation:

answer is 37.7, rounded is 38

volume = (1/3) * π * 3² * 4

It is not c. 38 cu. cm

Step-by-step explanation:

Answer:

The last answer, D

Step-by-step explanation:

i got it right on ed

Answer

D

Step-by-step explanation:

just did it

Answer: $10.49

Step-by-step explanation:

Each person's meal cost

115.39 / 11 = 10.49

Answer:

1269.29

Step-by-step explanation:

Thomas took everyone to lunch and there were 11 people at the table. Everyone’s meal cost the same and the total bill was $115.39. How much did each person’s meal cost?

i would do the equation 11x115.39

1x9 1x3 1x5 1x1 1x1

same thing but 0 to end

full number 126929 but remember to add the decimal point

1269.29

Answer:

3(x - 12)(x + 2)

Step-by-step explanation:

Given

3x² - 30x - 72 ← factor out 3 from each term

= 3(x² - 10x - 24) ← factor the quadratic

Consider the factors of the constant term (- 24) which sum to give the coefficient of the x- term (- 10)

The factors are - 12 and + 2 , since

- 12 × 2 = - 24 and - 12 + 2 = - 10 , thus

x² - 10x - 24 = (x - 12)(x + 2) and

3x² - 30x - 72 = 3(x - 12)(x + 2)

Answer:

A. (2,-1) i thought this is hard but its kind of easy actually

Step-by-step explanation:

so you just put the given options into the xs and ys.. so lets say we have (2,-1) 2=x -1=y

now put them into the equations.. y=x-3

-1=2-3( if this is true than this is the right answer)

y= -x +1

-1= -2 +1 (this is also correct)

Answer:

x=1.75

Step-by-step explanation:

5x+4=x+11

5x-x=11-4

4x=7

divide both sides by 4

4x/4=7/4

x=1.75

Answer:

12 cups

Step-by-step explanation:

there are 4 cups in 1 quart.  You multiply both of them by 3 so there are 12 cups in 3 quarts

Answer:

12 cups

Step-by-step explanation:

1 quart = 4 cups

4*3 = 12

12 cups

brainliest??

Answer:

18

Step-by-step explanation:

There is a string that is 3 yards long that is divided into pieces that are 1/6 of yard long.  Divide the total length by the length it was divided into to find the number of pieces.

When dividing with fractions, the second number will be inverted and multiplied by the first number.

3 ÷ (1/6) = 3 × 6 = 18

You will have 18 pieces

Answer:

A is the answer

Step-by-step explanation:

Answer:

a

Step-by-step explanation:

2nd one

write fast your exam is gonna end man

Answer:

Second option and third option.

Step-by-step explanation:

The line WY is congruent to line EG. Angle X is congruent to angle F.