Martha simplified the expression ———-, putting it into the form ———-. what is the value of a - b?
The expression is in the photo.

A. 2
B. 4
C. 5
d. 7

Answer:

We can break this down:

The student has a one out of five chance of getting a correct answer, and a four out of five chance of an incorrect answer. We can express the students odds of getting one incorrect answer as 4/5. In order to get the odds of two wrong answers, we need to multiply this answer again by the odds of choosing a wrong answer. Therefore:

The odds of one wrong answer = 4/5

The odds of two wrong answers = (4/5) * (4/5) = 16/25 chance of getting both of the questions wrong.

Step-by-step explanation:

Answer:

Step-by-step explanation:

Answer:

6 inches

Step-by-step explanation:

There are 12 inches in 1 foot so

12 inches X 4 feet = 48 inches

Then we subtract the 48 in minutes the 42 in to find the difference between Noelle and Oliver's height

48-42=6

Answer:

average = 9

(the third number is the average)

Step-by-step explanation:

If the sum of three numbers is 27, then the average (mean) is the total (27) divided by the number of values (3):

⇒  27 ÷ 3 = 9

- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -

However, if you want to find the actual numbers:

Let x = first number

Let y = second number

Let z = third number

Given:

Substitute y = 3x  and  z = 2x  into  x + y + z = 27 and solve for x:

⇒ x + 3x + 2x = 27

⇒ 6x = 27

⇒ x = 4.5

    y = 3x  

⇒  y = 3 x 4.5

⇒  y =13.5

    z = 2x

⇒  z = 2 x 4.5

⇒  z = 9

Therefore, x = 4.5  y = 13.5  and z = 9

which means z (the third number) is same value as the average

Step-by-step explanation:

here your answer

above photo is your answer

Observe the side lengths

Here

Now we know

that bigger side has bigger opposite angle

[tex]\\ \tt\hookrightarrow <H ><J ><I[/tex]

Answer:

Observe the side lengths

Here

JI>JH>IH

Now we know

that bigger side has bigger opposite angle

Step-by-step explanation:

Answer:

Step-by-step explanation:

Circumference equation:

Substitute the values of C and π, then solve for r:

Answer:

ok so first we have to do whats in the brackets then we have to do to exponits so first

(-0.00024414062divided by 0.00390625)^2

-0.06249999872^2

-0.00390624984

Hope This Helps!!!

Answer:

y(0.75+7) = 0.75y + 7y

Step-by-step explanation:

....

Answer:

if you open the bracket by multiplying y with the sum of the numbers you will have 7.75y

Answer:

x : x<y

Step-by-step explanation:

x = girls

y = boys

Hope it helps

Answer:

=143Yiii HAHHAHAHAHAHAHHA

Answer:

(x-5)(x-1)(x+1)

Step-by-step explanation:

hope this helps you :)

Answer:

1000

Step-by-step explanation:

604 is close to 600.

392 is close to 400.

600 + 400 = 1000

Answer: 1000

Answer:

1,000

Step-by-step explanation:

Estimate means to round and sum means addition

604 rounds to 600

392 rounds to 400

600 + 400 = 1,000

I hope this helps! have a wonderful rest of ur day :)

Answer:

51

Step-by-step explanation:

Parenthesis

Exponents

Multiplication

Division

Addition

Subtraction

Multiplication first, then division, and then addition.

(8*18)÷4+15 (Multiplication)

(144÷4)+15 (Division)

(36) + 15 (Addition)

   51

Hope that helps!

Answer:

51.

Step-by-step explanation:

When we use PEMDAS, we need to know what it stands for first. What it stands for will give us the steps necessary to complete and solve this problem.

PEMDAS stands for Parenthesis, Exponents, Multiplication, Division, Addition, and Subtraction.

In this problem we do not have parenthesis or exponents, so we can go ahead and skip to multiplication. So:

8 x 18 ÷ 4 + 15

144 ÷ 4 + 15

Now we can go to doing division.

144 ÷ 4 + 15

36 + 15

Now we can do addition.

36 + 15

So, the answer is 51.

I hope that this helps.

Answer:

1/4

Step-by-step explanation:

[tex](\stackrel{x_1}{-14}~,~\stackrel{y_1}{-16})\qquad (\stackrel{x_2}{-18}~,~\stackrel{y_2}{-17}) \\\\\\ \stackrel{slope}{m}\implies \cfrac{\stackrel{rise} {\stackrel{y_2}{-17}-\stackrel{y1}{(-16)}}}{\underset{run} {\underset{x_2}{-18}-\underset{x_1}{(-14)}}}\implies \cfrac{-17+16}{-18+14}\implies \cfrac{-1}{-4}\implies \cfrac{1}{4}[/tex]

Answer:

55

Step-by-step explanation:

This looks like it was written in Spanish. I can only answer you in English.

The 2 "c"s   tell you PM = MR, so QM is an angle bisector.

PQR is a right angle and = 90 degrees.

x is 1/2 PQR so x is 45 degrees

x + 10 = 45 + 10 = 55

Using the normal distribution, it is found that the the travel time such that 26.11% of the 60 days have a travel time that is at least is of 42.19 minutes.

In a normal distribution with mean [tex]\mu[/tex] and standard deviation [tex]\sigma[/tex], the z-score of a measure X is given by:

[tex]Z = \frac{X - \mu}{\sigma}[/tex]

In this problem:

The travel time such that 26.11% of the 60 days have a travel time that is at least X when Z has a p-value of 1 - 0.2611 = 0.7389, hence X when Z = 0.64, hence:

[tex]Z = \frac{X - \mu}{\sigma}[/tex]

[tex]0.64 = \frac{X - 35.6}{10.3}[/tex]

[tex]X - 35.6 = 0.64(10.3)[/tex]

[tex]X = 42.19[/tex]

The travel time such that 26.11% of the 60 days have a travel time that is at least is of 42.19 minutes.

More can be learned about the normal distribution at https://brainly.com/question/24663213

Answer: 30%

Step-by-step explanation:

In simple words, The question is asking us to find the Slope of the given line...

[tex] \boxed{ \sf \: m = \frac{rise}{run} = \frac{ y_{2} - y_{1} }{ x_{2} - x_{1} } }[/tex]

To find the slope, We need to take two point and then identitify x1, x2, y1, y2

[tex] \tt \: m = \frac{8 - ( - 4)}{ - 1 - 3} [/tex]

[tex] \tt \: m = \frac{8 + 4}{ - 4} [/tex]

[tex] \tt \: m = \frac{12}{ - 4} [/tex]

[tex] \boxed{ \bf \: slope = - 3}[/tex]

Solution:

Note that:

Step-1: Pick and two points on the line.

Step-2: Use the formula y₂ - y₁/x₂ - x₁:

The slope of the line is -3.

Tthese three values from least to greatest is 41. 43 and 51

Percentage can be defined as the fraction of a number and 100.

It is represented with the symbol, %.

From the information given, we have that;

This is represented as;

60/100 × 80

Multiply the values

48

82/100 × 50

Multiply the values

41

170/100 × 30

Mutiply the values

51

Hence, the values are 41, 48 and 51

Learn about percentage on:

https://brainly.com/question/843074

#SPJ1

Answer: 2/3

Step-by-step explanation:

Consider the pts (0, -3) and (3, -1).

change in y = -2

change in x = -3

So the slope is (-2)/(-3) = 2/3

Answer:

B. False.

Step-by-step explanation:

4 (x + 6) = 24

4x + 24 = 24

4x = 0

x = 0

Therefore, answer choice B is the correct answer.

Answer:

Three hours later than 2:30 is 5:30

Step-by-step explanation:

Answer: The answer is 10

Step-by-step explanation:

2a = 2 times 3 which is 6. b2= 2 times 2. 2 times 3 is 6, 2 times 2 is 4. 6 + 4 is 10

Answer:

Step-by-step explanation:

The given formula is linear, with the slope of 16 and the y-intercept 160.

The slope represents a labor cost per hour and the y-intercept is the cost of spare parts used in repair.

The transformation below that caused AB to transform into A'B' is a reflection across the y-axis

Given the following coordinates

A = (6, 2)

B = (2, 6)

A' = (-6, 2)

B' = (-2, 6)

According to the reflection rule, the reflection over y axis is given as:

[tex](x,y)\rightarrow (-x,y)[/tex]

Note that the x-coordinate was negated as seen from the translation A to A' and B to '.

Hence the transformation below that caused AB to transform into A'B' is a reflection across the y-axis

Learn more on transformation here: https://brainly.com/question/1462871

Answer:

336cm is 3.36m

Step-by-step explanation:

divide 336 by 100 to get to meters which is 3.36m

Answer:

[tex]\boxed{\frac{336}{1} = \frac{336}{100} = 3.36 }[/tex]

1 meter → 100 centimetres

solve:

100 centimetres → 1 meter

1 centimetres → [tex]\frac{1}{100}[/tex] meter

336 centimetres → [ [tex]\frac{1}{100}[/tex] [tex]* 336[/tex] ] meter

3.36 meter

Answer:

(-1)/16

Step-by-step explanation:

-4^-2 = -1/((4)(4)) = True

(-1)/4^2

Evaluate 4^(-2).

4^(-2) = 1/16:

Answer: -1/16

Simplify the following:

(-1)/(4×4)

Hint: | Multiply 4 and 4 together.

4×4 = 16:

Answer: (-1)/16