The adams family is remodeling their family room. the room measures 14 feet by 20 feet, and the contractor wants $35 per square foot to remodel it. how much will it cost to remodel?

Answer:

Justin should have Multiplied 3.8 and 7.9 first

Step-by-step explanation:

Because all these people that have the wrong answer got me mad

Justin should have multiplied 3.8 and 7.9 first. Therefore, option C is the correct answer.

An expression is a combination of terms that are combined by using mathematical operations such as subtraction, addition, multiplication, and division.

The given expression is 12.5 + 3.8x.

When x=7.9 in the given expression, we get

12.5+3.8(7.9)

= 12.5+30.02

= 42.52

Justin should have multiplied 3.8 and 7.9 first. Therefore, option C is the correct answer.

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"Your question is incomplete, probably the complete question/missing part is:"

Justin is evaluating the expression 12.5 + 3.8x, when x is 7.9.

12.5+3.8(7.9)

16.3(7.9)

128.77

What was Justin's error?

1) Justin should have multiplied 12.5 and 7.9 first.

2)  Justin should have added 12.5 and 7.9 first.

3)  Justin should have multiplied 3.8 and 7.9 first.

4)  Justin should have added 3.8 and 7.9 first.

Answer:

Option A is correct

Step-by-step explanation:

In the given figure to draw the parallel line to AC passing through B we have to tell the next step.

As lines AC and AB given and we know if lines are parallel then alternate angles are equal.

Hence, if line through B parallel to AC drawn then alternate angles ∠BAC and ∠ABD equal.

∴ To draw parallel lines our next step is to use a protractor to measure ∠BAC so that the same angle through B is drawn results in equal alternate interior angles.

Hence, Option A is correct.

the greatest possible error for meters is 1/2 the increments

 since 18.9 is to the tenths place

 1/2 x 1/10 = 0.05

 so greatest possible error for 18.9 is 0.05m

Answer:

its D

Step-by-step explanation:

The sum of the first eight terms of a geometric series whose first term is 3 and whose common ratio is 1/2 is 5.9765625

Series are the sum of sequences. The sum of geometric series is expressed as:

Sn = a(1-r^n)/1-r

Given the following

n = 8

a = 3

r = 1/2

Substitute

S8 = 3(1-(1/2)^8)/0.5
S8 = 3(1-1/256)/0.5
S8 = 3(255/256)/0.5
S8 = 5.9765625

Hence the sum of the first eight terms of a geometric series whose first term is 3 and whose common ratio is 1/2 is 5.9765625

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The subject of this question is Mathematics.

The subject of this question is Mathematics.

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The area of a computer monitor with dimensions of 13.93 inches by 10.45 inches is approximately 0.09381 square meters.

To calculate the area of your computer monitor, you first need to convert the dimensions from inches to meters because the area is asked for in square meters. There are approximately 0.0254 meters in an inch. So the width is 13.93 inches * 0.0254 m/inch equals to approximately 0.354 meters, and the height is 10.45 inches * 0.0254 m/inch equals to approximately 0.265 meters.  

Then, we can calculate the area using the formula: Area = width * height. Substituting the converted measurements into the formula: Area = 0.354 m * 0.265 m which equals to approximately 0.09381 square meters.

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Answer:

To show: [tex]\sqrt{21}[/tex] is between 4 and 5

We know:

21 is lies between two consecutive integer  i.e, 16 and 25

We can write this as:

[tex]16 < 21 < 25[/tex]

or

[tex]\sqrt{16} <\sqrt{21}<\sqrt{25}[/tex]

Simplify:

[tex]4 < \sqrt{21} < 5[/tex]

⇒[tex]\sqrt{21}[/tex] lies between 4 and 5.

Therefore,  [tex]\sqrt{21}[/tex] is between [tex]\sqrt{16}[/tex] and [tex]\sqrt{25}[/tex] this means [tex]\sqrt{21}[/tex] lies between 4 and 5.

Answer:

We know that

[tex]16<21<25[/tex]

Because, 16 is less than 21 and 25 is more than 21.

Now, if we apply a square root to each part, we would have

[tex]\sqrt{16} < \sqrt{21}<\sqrt{25}[/tex]

Then, we solve each square root, except the square root of 21, because it doesn't have an exact result

[tex]4<\sqrt{21}<5[/tex], because [tex]\sqrt{16}=4[/tex] and [tex]\sqrt{25}=5[/tex]

So, basically, the reason why [tex]\sqrt{21}[/tex] is between 4 and 5 is beacuse 21 is between 16 and 25. Then, when you apply square roots to each part, you would find that the square root of 21 is between 4 and 5. That's the reason, the position.

In this problem, the student can use the properties of a 45°-45°-90° triangle to determine that the hypotenuse KL is 7 * √2 which is approximately equal to 9.9.

In a triangle where you know one angle (45°) and one side (7 units) across from the right angle, it is a typical example of a situation where trigonometry can be used. In this case, you're dealing with a 45°-45°-90° triangle, also known as an isosceles right triangle. In such a triangle, the sides are in a specific ratio. The sides opposite the 45° angles are the same length (let's call it 'a'), and the hypotenuse is a√2.

Given that LM = 7 and angle K is 45°, triangle KLM is therefore an isosceles right triangle and KL (the hypotenuse) is equal to LM multiplied by √2. So, KL = 7 * √2 which approximately equals to 9.9.

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opposite angles have to equal 180

 so 180-111 = 69

 angle 2 is 69 degrees

Answer:

52

Step-by-step explanation:

Suppose Joe had $J$ dollars to start with. Then Mary had $J + 2$ dollars. Since they both spent the same amount on their shirts, $\frac{2}{5} J - 1 = \frac{1}{3} (J + 2)$. Distributing, we get $\frac{2}{5} J - 1 = \frac{1}{3}J + \frac{2}{3}$. Isolating $J$ on the left side, $\frac{1}{15}J = \frac{5}{3}$. Therefore, $J = 25$. Thus, their original total amount of money was $J + (J + 2) = \boxed{52}$ dollars.

Answer:

Step-by-step explanation:

Any equation that is equivalent to V = x(12 - 2x)(8 - 2x) is accepted. Any graph that is similar to the graph of the function is accepted.

Sample Student Response:

The box is a cube, so the volume is the length × width × height. The height is the side length of the cardboard, which is x.

The length is the original length minus two side lengths of the cutout, so the length is 12 - 2x.

Similarly, the width is the original width minus two side lengths of the cutout, so the width is 8 - 2x.

Final answer:

the employee would need to work approximately 32.3 hours per month to pay for their health insurance.

Explanation:

The student has inquired about the number of hours they would need to work each month to pay for the cost of single coverage medical insurance.

Given that the insurance costs $322.77 per month and the employee earns $10 per hour, we can find the number of hours required by dividing the total cost of the insurance by the hourly wage.

To calculate:
Hours required = Total cost of insurance ÷ Hourly wage

Hours required = $322.77 ÷ $10 = 32.277

Therefore, the employee would need to work approximately 32.3 hours per month (rounding to the nearest tenth of an hour) to pay for their health insurance.

Final answer:

A committee of 5 can be chosen in 126 different ways from 10 people if Jones must be one of them, by using the combination formula C(9, 4) to choose the remaining four committee members from the other nine people.

Explanation:

To determine in how many ways a committee of 5 can be chosen from 10 people given that Jones must be one of them, we need to apply the concept of combinations in probability and combinatorics. Since Jones must be on the committee, we are actually choosing the remaining 4 members from the remaining 9 people.

The number of ways to choose 4 people out of 9 is calculated using the combination formula, which is:

C(n, k) = n! / (k!(n - k)!), where n is the total number of items, k is the number of items to choose, and '!' denotes factorial.

Applying this to our scenario:

C(9, 4) = 9! / (4! * (9 - 4)!) = 126

Therefore, there are 126 different ways to form the committee if Jones is already chosen as one member.

Answer:

[tex]x^{3}-(\sqrt{x} )^3[/tex]

Step-by-step explanation:

The given expression is x³ - 3√3

We have to rewrite the expression in the forem of difference of cubes.

x³ - 3√3 = x³ - √(3)³

             = [tex]x^3-(3)^{\frac{3}{2}}[/tex]

             = [tex]x^{3}-(\sqrt{x} )^3[/tex]

Therefore, we can rewrite the expression as

[tex]x^{3}-(\sqrt{x} )^3[/tex]

Mr. Chavez spent $299.97 altogether. The estimated total matches approximately with the calculated total, confirming the accuracy of our answer.

To find the total amount Mr. Chavez spent, we need to add the costs of the smartphone, carrying case, and accessories.

Total amount = |-199.99| + |-39.99| + |-59.99|

Now, let's evaluate each absolute value:

|-199.99| = 199.99

|-39.99| = 39.99

|-59.99| = 59.99

Now, let's add them together:

Total amount = 199.99 + 39.99 + 59.99

Total amount = 299.97

So, Mr. Chavez spent $299.97 altogether.

Now, let's check the answer using estimation:

Round each amount to the nearest ten:

- $199.99 is approximately $200.00

- $39.99 is approximately $40.00

- $59.99 is approximately $60.00

Now, let's add them together:

Total estimation = $200.00 + $40.00 + $60.00

Total estimation = $300.00

The estimated total matches closely with the calculated total, confirming the accuracy of our answer.

The complete question is:

Mr. Chavez spent $199.99 for a new smart phone,$39 .99 on a carrying case, and $59.99 on accessories. The expression |-199.99|+|-39.99|+|-59.99| represents the total amount that Mr. Chavez spent. How much did Mr. Chavez spend altogether? Check your answer using estimation.