help please i need it

Answer:

B. the answer is 4

Step-by-step explanation:

Start by dividing miles by gallons.

So for Mitra: Divide 469.8 and 14.5 --- 469.8/14.5= 32.4

For Adira: Divide 355 and 12.5 355/ 12.5 = 28.4

Now, we just subtract the answers to find the difference.

32.4-28.4 = 4.

4 is the difference.

Answer:

a = - 1

Step-by-step explanation:

given the zeros of a parabola x = a and x = b , then the factors are

(x - a) and (x - b) , then the equation is

y = a(x - a)(x - b) ← a is a multiplier

here the zeros are x = - 3 and x = 3 , then factors are

(x - (- 3) ) and (x - 3) , that is (x + 3) and (x - 3) and the equation is

y = a(x - 3)(x + 3)

to find a substitute any other point on the curve into the equation

using (0, 9 ) , then

9 = a(0 - 3)(0 + 3) = a(- 3)(3) = - 9a ( divide both sides by - 9 )

- 1 = a

Answer:

The volume would be [tex]396cm^3[/tex].

Step-by-step explanation:

Answer:

792 cm

Step-by-step explanation:

99*8

The temperature “On Tuesday at lunchtime, it was 29ºC

i.e., 29 - 16.

Given,

Write a story about temperatures that this expression could represent:

27+(-11)

Now, According to the question:

1. The temperature is 27 degree C in the morning and reduced 11 degree C  in the evening , the difference in temperature is 27 + (-11)

2.   “On Tuesday at lunchtime, it was 29ºC. By sunset, the temperature had dropped to 16ºC.”

Again, Similarly

= 29 - 16

About Number line,

Draw a number line and allocate a point 16 degree C on the left side

and, 29 allocate a point on the right side.

Hence, The temperature “On Tuesday at lunchtime, it was 29ºC

i.e., 29 - 16.

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Based on the calculation below, the amount of cash that the Smith and Jones manufacturing company kept in the bank was $500,000.

Let x represents the amount of cash that Smith and Jones manufacturing company has.

Therefore, we have:

Interest amount from bank = Cash * A third * Bank interest rate = x * (1/3) * 0.5% = x0.0017

Interest amount from long-term investments = Cash * Two-third * Long-term investments interest rate = x * (2/3) * 3.5% = x0.023

Total interest earned = Interest amount from bank + Interest amount from long-term investments = $37,500 ...................... (1)

Substituting all the relevant values into equation (1) and solve for x, we have:

x0.0017 + x0.023 = $37,500

x0.025 = $37,500

x = $37,500 / 0.025

x = $1,500,000

Amount kept in the bank = Cash * A third = $1,500,000 * (1 / 3) = $500,000

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Answer:

5,067

Step-by-step explanation:

9,379-4,312=5,067

Answer:

5,067

sometimes writing the problem like this

9,379

- 4,312

can help. :)

2.33 is the student's GPA using the average weighted mean.

So, the weighted average is calculated by multiplying each grade by its weight and dividing the result by the total weights.

It is as follows:

[tex]M=\frac{3 \times 3 \times 3+1(3)+2(4)+2(2)}{9+3+4+2}=\frac{12}{18}=2.33[/tex]

Therefore, 2.33 is the student's GPA using the average weighted mean.

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We can calculate the perimeter of the rectangular yard to find out how much fence Joshua needs:

since the perimeter of the yard is 264 yards, then Joshua does not have enough fence for his yard, since he only has 245 t of fence, and he needs 264ft

The equation of the line that passes through the point; (-4, 8) and is parallel to x + y = 6 as required in the task content is; x + y = 4.

It follows that the equation of the line that passes through the given point and is parallel to the given line is to be determined.

By expressing the given linear equation in slope-intercept form; it follows that we have;

x + y = 6

y = -x + 6

Hence, the slope of the equation by comparison with; y = mx + c is; -1.

Therefore, the slope of the required equation is same as the two lines are said to be parallel.

Ultimately, the required equation from point-slope form of an equation is;

( y - 8) = -1 ( x - (-4))

y - 8 = -x - 4

x + y = -4 +8

x + y = 4.

Ultimately, the required equation is; x + y = 4.

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Answer:

y=4x+1

Step-by-step explanation:

Step 1: plot your points

Step 2: draw a line through them

Step 3: find the slope (RISE/RUN) = 12/3 = 4

Step 4: find the y-int = 1

y=mx+b where x and y are variables, m is the slope and b is the y-int

y = 4x + 1

Hope that helps

using the normal distribution, the warranty period of motor last at 6.24 years.

According to given question , the average life of motor = 10 years and standard deviations = 2 years .

let X be the time period in which the warranty period of motor last . X ~ N( μ, σ²) where u is mean and s is standard deviations. X ~ N( 10, 2²) ⁼ N(μ, σ²)

it is given that only 3% number of motors are replaced and 3% = 0.03

Using normal distribution , P( X≤ x)= P(( X - μ )/ σ ≤ (x- μ)/σ ) = P ( Z ≤ (x- μ ) / σ ) =0.03

Z = (X- μ) / σ => X = Z (σ) + μ

p (Z ≤ -1.88) = 0.03 so, Z-value is - 1.88..

put all the value of variables in above formula we get , -1.88 ( 2) + 10 = X => X = - 3.76 + 10

=> X = 6.24

Thus , the motor's warranty period lasted about 6.24 years.

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Answer:

3584

Step-by-step explanation:

[tex]896[/tex]×[tex]4[/tex] =[tex]3584[/tex] (refer as table of 896).

hope it help :)

She uses 1/2 cup in each batch.

So, if she has 3 1/4 cups in total, we have to divide this total by 1/2 to know how many batchs she can make:

She can make 6 1/2 batches.

Sanjay a is making punch. he uses 1/3 c of pineapple juice for every 3/4 c of orange juice Then 4/3 cups of pineapple juice does he need if he uses 3 c of orange

equation of direct proportion between x and y

x1/y1 = x2/y2

as per given ,

let x= quantity of pineapple juice and y= quantity of orange juice

x1= 1/3 , y1 = 3/4

x2 = ?  and y2 =3

x1/y1 = x2/y2

(1/3)/ (3/4) = x2/3

4/9= x2 /3

4/3 = x2

Hence ,Sanjay a is making punch. he uses 1/3 c of pineapple juice for every 3/4 c of orange juice Then 4/3 cups of pineapple juice does he need if he uses 3 c of orange

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Answer:

A student writes the inequality representing the graph as y ≥ –2(x – 10)2 + 200.

The inequality is

✔ incorrect

because testing the point (5, 100) simplifies to the inequality

✔ 100 ≥ 150

.

Step-by-step explanation:

A student writes the inequality representing the graph as y ≥ –2(x – 10)2 + 200.

The inequality is

✔ incorrect

because testing the point (5, 100) simplifies to the inequality

✔ 100 ≥ 150

.

The inequality is incorrect because testing the point (5, 100) simplifies to the inequality 100 ≥ 150.

An inequality can be defined as a mathematical relation that is typically used for comparing two (2) or more numerical data and variables in an equation based on any of the following arguments (symbols):

Next, we would evaluate and simplify the given inequality in order to determine its solution as follows:

y ≥ –2(x – 10)² + 200.

At point (5, 100), we have:

100 ≥ –2(5 – 10)² + 200.

100 ≥ –2(-5)² + 200.

100 ≥ –2(25) + 200.

100 ≥ –50 + 200.

100 ≥ 150 (incorrect and false).

In conclusion, the given inequality is incorrect because 100 cannot be greater than or equal to 150.

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Compete Question;

A student writes the inequality representing the graph as y ≥ –2(x – 10)² + 200.

The inequality is ______ because testing the point (5, 100) simplifies to the inequality _____.

Answer:

Step-by-step explanation:

Hypothesis: you live in a state that borders California

:]

Answer:

its x^3 or 1

Step-by-step explanation:

there's nothing else you can do with it

also it might be 1 because x by itself is 1 so x^3 is considered  1^3

Answer:

  176 yd²

Step-by-step explanation:

You want the shaded area of a parallelogram that has a trapezoid-shaped white area.

The area of a parallelogram is given by the formula ...

  A = bh

The parallelogram shown has a base of 17 yd and a height of 7 yd +6 yd. Its area is ...

  A = (17 yd)(7 yd +6 yd) = 221 yd²

The area of the white space cut from the parallelogram is given by the formula ...

  A = 1/2(b1 +b2)h

where b1 and b2 are the parallel bases of the trapezoid, and h is the distance between them.

  A = 1/2(7 yd +8 yd)(6 yd) = 45 yd²

The shaded area is the difference of these two areas:

  shaded area = 221 yd² -45 yd² = 176 yd²

The area of the shaded region of the parallelogram is 176 yd².

Answer:

• score with two questions wrong = 18

• score with x questions wrong = (20 - x)

Step-by-step explanation:

The question is divided into two parts.

The first part asks us to calculate the marks that would be scored out of 20 if someone got 2 questions wrong. To do this we simply have to subtract 2 from 20 to get the score:

score = 20 - 2

         = 18

Therefore, Yasmin's score would be 18.

The second part asks us to calculate the marks that would be scored if someone got x questions wrong instead. As we did in the first part, we have to take away x from 20 in order to get the score:

score = 20 - x,

where x can be any whole number.

Therefore, Yasmin's score would be (20-x).

Answer: |J|= -16

Step-by-step explanation:

The value of ∣J∣ is -16.

A collection of numbers lined up in rows and columns to form a rectangular array is called a matrix. The elements, or entries, of the matrix are the numbers.

Given:

[tex]J = \left[\begin{array}{ccc}-1&4\\2&8\end{array}\right][/tex]

To find the value of ∣J∣:

We have to find the determinant of matrix J.

Multiply the numbers along the diagonal from top-left to bottom-right.

Multiply the numbers along the diagonal from bottom-left to top-right.

The second product is subtracted from the first.

Get the 2-by-2 determinant's value via simplifying.

∣J∣ = {(-1x8) - (2x4)}

∣J∣ = {-8 - 8}

∣J∣ = -16

Therefore, the value of ∣J∣ is -16.

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Fred's overtime pay is $16.50 an hour. He put in extra time this week on Monday and Thursday. The equation is $123.75-4 times the x value =h and h value is 57.75 and the working hours are 3.5 hours.

Given that,

Fred's overtime pay is $16.50 an hour. He put in extra time this week on Monday and Thursday. He put in four hours of extra on Monday. He received $123.75 in overtime compensation in total for the week.

We have to determine how many overtime hours, h, Fred worked on Thursday, write an equation and solve it.

We can write the equation as

$123.75-4 times the x value =h

Here,

x value is $16.50

We get,

$123.75-4×$16.50=h

h=57.75

To check hours working

57.75/16/50

=3.5 hours.

Therefore, the equation is $123.75-4 times the x value =h and h value is 57.75 and the working hours are 3.5 hours.

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Answer:

25

Step-by-step explanation:

25 is the square root of 625

Answer:

25

Step-by-step explanation:

[tex]\sqrt{625} = \sqrt{25^{2} } = 25[/tex]

Answer: no he does not win he got 67 points not 90 or more

Step-by-step explanation:

By taking a product, we can see that the total energy consumed by the console is 42,504 watt-hours.

Here we know that the console uses 154 watt-hours of energy each hour.

So, if you use it for x hours, the energy consumed is given by the product:

E = ( 154 watt-hours)*x

In this case, we know that the console is used for 276 hours, then we can write:

E = (154 watt-hours)*276 = 42,504 watt-hours.

Which is the product between the hourly consumption and the number of hours used.

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Answer:

John is 16 years old now.

Check:

1) 16+5 = 21

2) 16-9 = 7

3) 21 = 7*3

Step-by-step explanation:

Hope it helps! =D

this type of sample is called fractions

Step-by-step explanation:

Answer: Estan

Step-by-step explanation: I know spanish

The first law is called the Law of Detachment. The law states that if p → q and p is true, then q is true.

The second law is the Law of Syllogism. It states that If p → r and q → r, then p → r is true.

It is to be noted that the Law of Detachment is the most often employed deductive reasoning theory.

In other words, if a conditional statement and its hypothesis are true, the conclusion is likewise true. In other words, the conclusion may be "separated" from the conditional.

In the above instance, p is synonymous with having a cat; while q is synonymous with it chasing a rat.

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Shelley's cup of tea is cooling down at the rate of 1.2 degree per minute.

According to the question,

We have the following information:

Shelley's cup cooled down 12 degrees in 10 minutes.

In order to find the rate of cooling down of the cup of tea, we will divide the degrees of the cooling by the total number of minutes.

So, we have the following expression:

Rate of cooling down of Shelley's cup = Total degrees the cup cooled down/total time taken

Rate of cooling down of Shelley's cup = 12/10

Rate of cooling down of Shelley's cup = 1.2 degree per minute

Hence, the rate of cooling down of Shelley's cup is 1.2 degree per minute.

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Answer:

1/20

Step-by-step explanation:

Find the rate in degrees per minute. Divide

1

2

of a degree by 10 minutes.

To divide by 10, multiply by its reciprocal,

1

10

.

1

2

÷10

=

1

2

1

10

=

1

20

Shelley's tea is cooling down at a rate of

1

20

of a degree per minute.

Answer:

s:{4}

Step-by-step explanation:

4(4)+6<2(4)+12

16+6<8+12

32<20

which is the only false one