Mathematics Middle School

In this right triangle what is the approximate length of the hypotenuse side AC
A) 22.5 cm
B) 3.56 cm
C) 45 cm
D) 6.71 cm

In This Right Triangle What Is The Approximate Length Of The Hypotenuse Side ACA) 22.5 CmB) 3.56 CmC)

Answers

Answer 1
If you calculate [tex] \sqrt{45} [/tex] on the calculator you will find that it is 6.71 approximately.  So the answer is D
Answer 2
Your answer is D hope it helps:)

Related Questions

help please 40 points per question

Answers

Use FOIL (First, Outside, Inside, Last)

x(x) = x²
x(9) = 9x
-2(x) = -2x
-2(9) = -18

x² + 9x - 2x - 18

simplify by combining like terms

x² + 9x - 2x - 18

x² + 7x - 18

x² + 7x - 18 is your answer

hope this helps

I need help on this one please

Answers

the answer is d
hope it helps
please mark as brainliest

THE ANSWER IS D
HAVE A GREAT DAY BRO

Why is it more difficult to use repeated addition when multiplying two mixed numbers than it is to use repeated addition when you are multiplying a mixed number by a whole number?

Answers

The reason it is more difficult to use repeated addition when multiplying two mixed numbers when compared to multiplying a mixed number and a whole number is because when you are multiplying a mixed number by a whole number, you have a whole number of groups of the mixed number. Ex: 1 1/2 x 3 would be 3 groups of 1 1/2, so
1 1/2 + 1 1/2 + 1 1/2.

If this were 1 1/2 x 2 1/2, you have 2 whole groups of 1 1/2, but then you would need to represent 1/2 group which requires multiplying or dividing first.

The reason why it is more difficult to use repeated addition when multiplying two mixed numbers than it is to use repeated addition when you are multiplying a mixed number by a whole number is:

There is a whole number of groups of the mixed number. Ex: 1 1/2 x 3 would be 3 groups of 1 1/2, so 1 1/2 + 1 1/2 + 1 1/2.

What is Multiplication?

This refers to the mathematical operation that involves to find the product of a set of numbers.

What is Mixed Number?

This refers to the type of number that is made up of a whole number and a proper fraction, for example,2 [tex]1/4[/tex].

With this in mind, if we have mixed numbers like  1 1/2 x 2 1/2, and we were to use repeated addition to multiply them, we would have 2 whole groups of 1 1/2, but then we would need to represent 1/2 group which requires multiplying or dividing first.

Read more about multiplication here:
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which one is it. please answer

Answers

think about it 
if each side has 4/4
and there are 4  equal sides
this means there are 16 sides and only three of them are painted right?
so 3/16

(6.03) what is the coefficient of the variable in the expression 6-4x-8+2

Answers

4 is the coefficient

I believe the answer is C which says -4

Caitlin says that AC is the longest segment of fencing

Answers

whers the rest of the problem

if a triangle has side lengths of 22,32,and 55 units what type of triangle is it
acute,obtuse,right,no solution

Answers

Answer: No solution

A 'triangle' with side lengths of 22, 32, and 55 is no solution because it cannot form a triangle. In order for it to be a triangle, the sum of the two shorter side lengths must be greater than the longest side length.

22 + 32 < 55
54 < 55

Final answer:

A triangle with side lengths of 22, 32, and 55 units is an obtuse triangle.

Explanation:

A triangle with side lengths of 22, 32, and 55 units is an obtuse triangle.

To determine the type of triangle, we can use the Pythagorean theorem. If the sum of the squares of the lengths of the two shorter sides is greater than the square of the length of the longest side, then the triangle is obtuse. In this case, 22^2 + 32^2 = 484 + 1024 = 1508, which is greater than 55^2 = 3025, so the triangle is obtuse.

An obtuse triangle is a triangle with one angle greater than 90 degrees. In this case, the angle opposite the longest side will be greater than 90 degrees.

What is the median of the numbers 8.7, 8.7 8.9, 9.0, 9.1, 9.2? I know I'm supposed to find the middle number, but there's an even amount of numbers here. So I'm supposed to find the average of the two middle numbers, which are 8.9 & 9.0. What does it mean when it says I'm supposed to "find the AVERAGE of the two middle values"?

Answers

it means that you add them two together and divide by 2
The average is 8.9+9=17.9
17.9/2=8.95. 
So, that means the median or middle number is 8.95.

Also, you have to add the 2 middle numbers and divide it by 2 to find the median if there is an even amount of numbers.

Hope this helped☺☺

Solve the equation 
 5m-10n=20

Answers

5m-10n=20
+5           +5

m-10=25
   +10 +10

Answer is m=35

Hope it helped!

-Charlie

sos

thanks in advance

Answers

The scale factor can be found by setting the ratio new/old.

9/12 = 3/4 or 0.75

Hope this helps :)

if you know that 7 + 2i is a root of a polynomial function ,what is another root of that same function?

Answers

the other root would be 7-2i

Answer:  Another root of the same function is 7-2i.

Step-by-step explanation:  Given that 7+2i is a root of a polynomial function.

We are to find the another root of the same function.

We know that

if a complex number a+ib is one of the roots of a polynomial function f(x), then the conjugate a-ib is another root of the same polynomial f(x).

According to the given information, the conjugate of 7+21, that is, 7-2i is another root of the same polynomial function.

Thus, another root of the same function is 7-2i.

The value of the digit in the hundreds place in the number 653841 is 1/10 the value of the digit in the thousands place in which number?

A) 748917
B) 749817
C) 784917
D) 797481

Answers

your answer will be B. Hope i helped =)

Your answer would be B. 749,817

if a=37 degrees and b=6, find a.
A. 3.4
B. 4.5
C. 6.1
D. 2.5

Answers

To find the value of 'a' when a = 37 degrees and b = 6, trigonometry principles are used to calculate 'a' as approximately 34.08 degrees.

Given: a = 37 degrees and b = 6. To find a.

Using trigonometry: We can use the trigonometric ratio tangent to find a. tan(a) = b/c, where c is the hypotenuse. So, tan(37) = 6/c. Therefore, c = 6/tan(37) = 8.37. Hence, a = tan-1(b/c) = tan-1(6/8.37) ≈ 34.08 degrees.

Answer: Therefore, a = 34.08 degrees.

a used car lot has all vehicles on sale at a 15% discount. Which expression can be used to find the sale price of a vehicle with an original price of p dollars?

Answers

Answer:

a

Step-by-step explanation:

m,n

The required expression for the sales price is 0.85p.

Given that,
A used car lot has all vehicles on sale at a 15% discount. Which expression can be used to find the sale price of a vehicle with an original price of p dollars is to be determined.

What are percentages?

The percentage is the ratio of the composition of matter to the overall composition of matter multiplied by 100.


What is the cost price?

Cost price is the price the buyer pays to the seller for an object or product.

Here,
The original sales price of the card is p dollars,
There is a 15% discount on the sale of cars,
15 % discount,
= p 15/100
= 0.15p
Now, price after discount,
= p - 0.15p
= 0.85p

Thus, the required expression for the sales price is 0.85p.

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Chris is twice as old as Don, and next year the sum of their ages will be four times as much as Don’s age last year. Find their present ages.

Answers

Answer:

Chris is 12 years old and Don is 6 years old.

Step-by-step explanation:

;)

The present age of Don is 6 years old and Chris age is 12 years.

What is Equation?

Two or more expressions with an Equal sign is called as Equation.

Let's denote Don's current age as x.

As Chris is twice as old as Don, Then, Chris's current age is 2x.

Next year, their ages will be x+1 and 2x+1 respectively.

The sum of their ages will be four times as much as Don’s age last year.

(x+1) + (2x + 1) = 4(x-1).

Expanding and solving for x:

3x + 2 = 4x - 4

x = 6

So, Don is 6 years old and Chris is 2×6 = 12 years old.

Hence, the present age of Don is 6 years old and Chris age is 12 years.

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Find the volume of the rectangular prism

23 in.3
297 in.3
318 in.3
159 in.3

Plz help!!

Answers

The answer is c with a side of bacon hope that helps. :)

a salesperson has averaged $120 in commissions for each of the past ten days. For how many days must her commissions average $160 in order to bring her overall average to %150?

Answers

OKOK

A salesperson averaged $120 per 10 days sooo 120/10 is 12 so about 12 per day

So,
You guess the amount that could make up a number around 150or 160

So 12 x3 = 36 + 120=156 hallelujah!

So, 3 more days until she can average $160 in order to bring her overall average to 150%.....

Hope this helps. :::)))))

Please help and explain

Answers

they're both technically correct but nick didn't factor completely, Cora factored the expression as much as possible by pulling out the gcf so Cora should be correct
Nick didn't factor out completely. In his answer you could still factor out a 2 to get the answer of what Cora got.

Each edge of a cube measures 4.7 in. What is the surface area of the cube? Enter your answer, as a decimal, in the box.

Answers

There are 6 faces and area of each face = 4.7^2

so surface area of the whole cube = 6 * 4.7^2 =  132.54 in^2

The measure of an edge of a cube = 4.7 in

We have to determine the surface area of the cube.

The surface area of a cube is the area of the six squares that cover it. The area of one square is [tex] a^{2} [/tex]. Therefore, area of six squares = [tex] 6a^{2} [/tex].

Surface area of cube = [tex] 6a^{2} [/tex] , where a is the edge of a cube

Therefore, Surface area of this cube

= [tex] 6a^{2} [/tex]

= [tex] 6 \times (4.7)^{2} [/tex]

= 132.54 square inches.

Therefore, surface area of the cube is 132.54 square inches.

the measure of two supplementary angles have a ratio of 5:4. What is the measure of the larger angles?

Answers

The larger angle is 100 degrees

Robert plans to make a box-and-whisker plot of the following set of data. 27, 14, 46, 38, 32, 18, 21 Which of the following should Robert's box-and-whisker plot look like?

Answers

To make a box and whisker plot, you need to draw a number line that would be able to represent all the values in the data (look at your lowest and highest numbers).

You will need to graph the following 5 points on your number line (median, lower quartile, lower extreme, upper quartile, and upper extreme).

Create a box around the quartiles and extend the lines to the extremes.
See the picture I have attached for the box and whisker box for this data set.

how do I do identify calculate the area and perimeter for quadrilaterals

Answers

length times width for area and add all the sides up for perimeter

To calculate the area and perimeter of a quadrilateral, you need to know the shape of the quadrilateral and the lengths of its sides. The area can be calculated using different formulas depending on the shape, such as trapezoid, rectangle, parallelogram, or square. The perimeter is calculated by adding the lengths of all the sides.

To calculate the area and perimeter of a quadrilateral, we need to know the shape of the quadrilateral and the lengths of its sides.

1. Area:

Trapezoid: The area of a trapezoid can be calculated using the formula A = (base1 + base2) × height / 2, where base1 and base2 are the lengths of the parallel sides, and height is the distance between the parallel sides.Rectangle: The area of a rectangle is calculated by multiplying its length by its width, so A = length × width.Parallelogram: The area of a parallelogram is calculated using the formula A = base × height, where base is the length of one side and height is the perpendicular distance between the base and the opposite side.Square: The area of a square is calculated by multiplying the length of any side by itself, so A = side × side.

2. Perimeter:

Trapezoid: The perimeter of a trapezoid is calculated by adding the lengths of all its sides.Rectangle: The perimeter of a rectangle is calculated by adding the lengths of its four sides, so P = 2 × length + 2 × width.Parallelogram: The perimeter of a parallelogram is calculated by adding the lengths of its four sides.Square: The perimeter of a square is calculated by multiplying the length of one side by 4, so P = 4 × side.

This year Cornell’s class took one more than three times as many field trips as last years class. This year Cornell’s class took a total of 7 trips. How many trips did his class take last year

Answers

To find the number of field trips Cornell's class took last year, we set up the equation 3x + 1 = 7, where x represents the number of trips last year. Solving this, we find that Cornell's class took 2 field trips last year.

The question involves a basic mathematical equation to determine the number of field trips taken by Cornell's class last year. Since this year Cornell's class took 7 trips, and this number is one more than three times the amount of the previous year, we can set up the equation as x being the number of trips taken last year:

3x + 1 = 7

To find x, subtract 1 from both sides of the equation:

3x = 7 - 1

3x = 6

Now divide both sides by 3 to solve for x:

x = 6 / 3

x = 2

So, Cornell's class took 2 field trips last year.

Please help.


Frank is buying his first car and is stuck on what color it should be. He has to choose between three shades of green, two shades of blue or r two shades of purple. What is the probability he will choose a green car?

Answers

the probability of gooding a green car is 3 out of 7. or 42.8%

Jeannie ate 1/4 of an apple.kelly ate 2/4 of the apple.how much did they eat together

Answers

1/4 + 2/4= 3/4. They together ate 3/4 of the apple. Hope this helped :)

Answer:

3/4

Step-by-step explanation:


The table shows summary statistics for the dollar amounts spent by customers at two store locations over a period of 2 weeks.

Location Mean amount spent ($) Range ($)
A 84 15
B 97 25
Which conclusion is true?

Answers

customers spend less at a and a is less varbel hope that helps

Answer:

A.

Step-by-step explanation:

A family's vacation destination is 850 miles from their home. They travel by car 6 hours on the first day of their trip. Their average speed is 45 mph. The next day they travel 7 hours, averaging the same speed. How many miles are left for the family to travel?

Answers

Answer:256

Step-by-step explanation:

Answer:

265 miles.

Step-by-step explanation:

A group of children each rode a horse to the bottom of the canyon. They had 20 eyes and 30 legs between them, how many horses were there

Answers

there were 10 horses
Final answer:

You can calculate that, since all children and horses have two eyes, and that children have two legs and horses have four, and the total number of eyes is 20 and the total number of legs is 30, there were 5 children and 5 horses.

Explanation:

This problem can be solved using basic algebra. We need to count the numberOfChildren and numberOfHorses in a manner where each child and each horse contribute two eyes and with each child having two legs while each horse has four legs.

Let's make two assumptions:

numberOfChildren = number of children numberOfHorses = number of horses

So, we can write two equations according to the question:

The total number of eyes = 20 (which implies that numberOfChildren + numberOfHorses = 10, because each creature, whether child or horse, has two eyes)The total number of legs = 30 (which implies that 2*numberOfChildren + 4*numberOfHorses = 30, as each child has two legs and each horse has four)

By solving these two equations, we find that the numberOfChildren = 5 and numberOfHorses = 5.

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Two angles are supplementary. If one measures x and the other angle measures x+ 30, what is the value of x ?

Answers

the measure of x would be 30
Answer: x = 75

Remember: supplementary angles add up to 180°.

Form your equation.
x + x + 30 = 180

Solve for x.
x + x + 30 = 180              Combine like terms
2x + 30 = 180                  Subtract 30 from both sides
2x = 150                          Divide by 2 to both sides
x = 75                              Answer!

fill in the blank with a symbol that makes this statement true 5/12 and 1/3

Answers

5/12 > 1/3 because 1/3 is equal to 4/12 and 5 is greater than 4
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