MATHEMATICS MIDDLE SCHOOL

Please help me I’m so lost

Answers

Answer 1

Answer:

Answer:

40.6 units

Step-by-step explanation:

Arc length is given by the formula ...

s = rθ

where θ is the measure of the central angle in radians.

There are 2π radians in a circle (360°), so π radians in 180°. That can be used to convert the central angle ADB to radians for use in the formula.

∠ADB = 360° -194° = 166°

∠ADB = 166° = (166/180)π radians = 83π/90 radians

Then the arc length AB is ...

length AB = (14)(83π/90) ≈ 40.561 units

The length of arc AB is about 40.6 units.

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What is 85.23 - 2.675 =?
Is 105/2 equivalent to 210/4
(My time is running OUT, HELP!!!)A graph shows the relationship between the height of a rectangular prism (x) and its volume (y) when the area of the base is 12 square inches.. Which statement is true about this graph? (A)As the height increases, the volume increases proportionally. (B)As the height increases, the volume increases in a non-proportional manner.(C)As the height increases, the volume decreases proportionally. (D)As the height increases, the volume decreases in a non-proportional manner
How many times does 3 go into 42

Joe's bathroom floor is 5 feet wide and 8 feet long. He will cover the floor with 3" square tiles. How many tiles does Joe need?

Answers

The solution is, 14 tiles does Joe need.

What is area ?

Area is the measure of a region's size on a surface. The area of a plane region or plane area refers to the area of a shape or planar lamina, while surface area refers to the area of an open surface or the boundary of a three-dimensional object.

here, we have,

given that,

Joe's bathroom floor is 5 feet wide and 8 feet long. He will cover the floor with 3" square tiles.

so first find area

area=legnth times width

5=width

8=legnth

5 times 8=40

so, we have,

area=40

3 area times x number of tiles=40

divide both sides by 3

x=40/3

x=13 and 1/3

since you can't buy 1/3 tiile

round up

x=14

answer is 14 tiles does Joe need.

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The answer is 120 cuz you multiply 5 times 8 and get 40 the multiply 40 times 3

In right triangle abc shown below what is the degree measure /_C

Answers

I am not sure. Can’t see the question sorry

Seattle Washington received rain on 7/10 of the day and a recent months if this pattern continues about how many days would it not rain in 90 days

Answers

If I understood correctly:

on 7 out of 10 days it's raining? so on 3 out of 10 days it is not raining. (10-3=7)

and the question is: in 90 days, on how many of those would it rain and on how many not? ( correct me if I'm wrong, I think You had some typos and I couldn't understand the question)

so in 90 days there are 9 times 10 days. If in every one of those 10 days on 7 it's raining, then it's raining on 9*7=63 days!

and days when it is not raining are: 90-63=27!

Which equation is related to the equation shown?x + 3 = 12

A.

x = 12 + 3

B.

x = 12 ÷ 3

C.

x = 12 − 3

D.

x = 12 • 3

Answers

The answer is:

C) x = 12 - 3

Work/explanation:

To solve, subtract 3 on each side:

$\rightarrow\hspace{13} \sf{x+3 = 12}\n\n\n\rightarrow\hspace{13}\sf{x=12-3}\n\n\n\rightarrow\hspace{13}\sf{x=9}$

The equation that is related to the equation shown is x = 12 - 3.

C, because it's the opposite of the actual equation.

what is the longest flagpole (in whole feet) that could be shipped in a box that measures 2 ft by 2 ft by 12 ft?

Answers

The longest flagpole that could be shipped in a box that measures 2 ft by 2 ft by 12 ft is 2 feet long.

How to obtain the minimum value of a function?

To find the minimum of a continuous and twice differentiable function f(x), we can firstly differentiate it with respect to x and equating it to 0 will give us critical points.

Putting those values of x in the second rate of function, if results in negative output, then at that point, there is maxima. If the output is positive then its minima and if its 0, then we will have to find the third derivative (if it exists) and so on.

We are given that;

The measurement of box= 2*2*12ft

Now,

To determine the longest flagpole that could be shipped in a box that measures 2 ft by 2 ft by 12 ft, we need to find the maximum length of a flagpole that can fit inside the box without exceeding any of the box's dimensions.

The longest flagpole that could fit inside the box would be equal to the shortest dimension of the box, which is 2 feet. This is because the flagpole would need to fit inside the box in a diagonal orientation in order to maximize its length.

Therefore, by the maxima and minima answer will be 2 feet long.

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Pythagoras question. Because the question's really just asking you, what is the length of the hypotenuse of a triangle with adjacent and opposite sides of 2 and 12
so a^2+b^2=c^2
=
4 + 144=148
The square root of 148=12.165
round it down to 12 :)

A square piece of fabric has an area of 16x^2+40x+25 square inches. The length of each side of the fabric is cx+d, where c and d are whole numbers. Find an expression for the perimeter of the piece of fabric. Then find the perimeter when x=2.

Answers

$A=(cx+d)^2=c^2x^2+2cdx+d^2\n\nc^2x^2+2xcd+d^2=16x^2+40x+25\n\Downarrow\nc^2=16;\ 2cd=40;\ d^2=25\n\Downarrow\nc=√(16);\ cd=20;\ d=√(25)\n\Downarrow\n\boxed{c=4\ and\ d=5}\n\nThe\ length\ of\ side:cx+d=\boxed{4x+5}\n\nThe\ perimeter\ of\ the\ piece\ of\ fabric:4(4x+5)=\boxed{16x+20}\n\nFor\ x=2:\n16\cdot2+20=32+20=\boxed{52}$

Final answer:

The expression for the perimeter of the fabric is P = 16x+20. When x=2, the perimeter is 52.

Explanation:

To find the expression for the perimeter of the piece of fabric, we need to determine the length of each side of the fabric. The given expression for the area of the fabric is 16x^2+40x+25. We can factor this expression as (4x+5)^2. Since a square has all its sides equal, the length of each side of the fabric is 4x+5.

The perimeter of a square is given by the formula P = 4s, where s is the length of a side. Therefore, the expression for the perimeter of the fabric is P = 4(4x+5) = 16x+20.

To find the perimeter when x=2, we substitute x=2 into the expression for the perimeter: P = 16(2)+20 = 32+20 = 52.

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