Mathematics Middle School

A figure can be broken into a parallelogram and triangle.
Which formulas will you use to find the area of this irregular figure? Select all that apply.
A = one-half b h
A=b+h
A=bh
A=2bh
A=2(b+h)

Answers

Answer 1

the answer is the first and a=b+h

Answer 2

Answer:

(a) A = 1/2bh

Step-by-step explanation:

You want the formulas for the area of a triangle and the area of a parallelogram.

Area formulas

The formula for the area of a triangle is ...

A = 1/2bh

The formula for the area of a parallelogram is ...

A = bh

Additional comment

The formula for the area of a trapezoid is ...

A = (1/2)(b₁ +b₂)h

A trapezoid is a quadrilateral with two parallel sides. These parallel sides are the bases, b₁ and b₂.

A parallelogram has bases of the same length. Using that fact in the formula gives ...

A = (1/2)(b +b)h = (1/2)(2b)h = bh . . . . area of a parallelogram

In a triangle, one of the bases is zero length. Using that fact in the formula gives ...

A = (1/2)(b +0)h = 1/2bh . . . . area of a triangle

The perimeter of a rectangle has the formula ...

P = 2(b +h)

It should not be confused with an area formula.

Related Questions

A spinner with repeated colors numbered from 1 to 8 is shown. Sections 1 and 8 are purple. Sections 2 and 3 are yellow. Sections 4, 5, and 6 are blue. Section 7 is red.

spinner divided evenly into eight sections numbered 1 through 8 with three colored blue, one red, two purple, and two yellow

Determine the theoretical probability of the spinner landing on yellow, P(yellow).

0.125
0.25
0.625
0.75

Answers

Answer:

.25

Step-by-step explanation:

two sections of the spinner are yellow

2÷8= 0.25

2 yellow sections and 8 total colored sections.

Answer:

0.25

Step-by-step explanation:

Theoretical probability refers to the likelihood of an event occurring based on mathematical calculations and assumptions, without any actual experimentation or observation.

To calculate theoretical probability, divide the number of times an event can occur by the total number of possible outcomes.

[tex]\boxed{\sf Probability\:of\:an\:event\:occurring = \dfrac{Number\:of\:ways\:it\:can\:occur}{Total\:number\:of\:possible\:outcomes}}[/tex]

If the spinner is divided evenly into 8 sections, where 2 sections are yellow:

The number of ways the spinner can land on yellow is 2.The total number of possible outcomes is 8.

Therefore, the theoretical probability of the spinner landing on yellow is:

[tex]\sf P(yellow)=\dfrac{2}{8}=0.25[/tex]

compare the integers -2 and -10 on a horizontal number line. Which
teger is to the right of the other?
-2

Answers

Answer:

-2

Step-by-step explanation:

_______________________

' ' '

-10 -2 0

that's what the number line would look like

-2 is to the right. As it is closer to 0 on a number line.

The tape diagram represents an equation. Write an equation to represent the image.

Answers

Answer: w=1.4

Step-by-step explanation: 2.7-1.3=1.4

What's the answer to this?

Answers

Answer:

5/6

Step-by-step explanation:

√ if 1/2 test = 3/5hour

? = 1hour

√ 1/2test*1hour÷3/5hour

√ 1/2 test hour÷3/5hour

√ 1/2÷3/5test

√ 1/2*5/3 test

√ 5/6 test or 0.83333....

Find the measure of side XY.
Polygon ABCD with sides AB, unmarked, BC 12, CD 10, and DA 13 marked similar to Polygon WXYZ, with sides marked WX 24, XY, m, ZY 15.

12.5
15.0
18.0
8.0

Answers

Answer: I think the answer is 18.0 for m

Step-by-step explanation:

I can't really explain it but I hope it works

the third one / c - measure of side CY is 18.0

Use the expression 3+u/2+8w. Which part of the expression represents a quotient? Describe its parts.

The part of the expression that represents a quotient is?

Answers

Expression given: 3 + u/2 + 8w

There are three terms in the expression.

3 is the first term, u/2 is the second term, and 8w, aka 8 · w

The part of the expression that represents a quotient is u/2

I hope this helps you :D

The table shows input and output values of the function y = x^2 + 12x – 2. What is an approximate solution of the equation x^2 + 12x – 2 = 0?

Answers

The following exercises try to calculate the variation rate of a quantity when the variation rate of another quantity related to it is known. In this type of exercise, the "variation rate" is interpreted as a derivative and, in most cases, it is enough to use the chain rule to obtain what is requested. You have to choose the units according to the data of the problem; For example, if a volume is measured in liters, we will have to measure lengths with decimeters.
Exercise 1. How fast does the level of the water contained in a cylindrical tank drop if we are emptying it at a rate of 3000 liters per minute?
Solution
Let r be the radius of the cylinder and h be the height measured in decimeters. Let V(t) be the volume of water, measured in liters (=dcm3), that is in the cylinder at time t measured in minutes. The information they give us is a variation rate
V(t + 1) − V(t) = −3000 liters per minute
In this type of exercise, the variation rate is interpreted as a derivative: V ′(t) = −3000. Notice that V(t + to) − V(to) u V′(to)t, so the interpretation is reasonable. The negative sign of the derivative is required since the volume decreases with time. Since the radius is constant but the height of the water depends on time, we have
and we deduce therefore
V(t) = πr2h(t)
V′(t) = −3000 = πr2h′(t)
h′(t) = −3000 decimeters per minute πr2
If we express the measurements in meters, then h ′ (t) = − 3 meters per minute. πr2
Exercise 2. A point P moves on the part of the parabola x = y 2 situated in the first quadrant in such a way that its x coordinate is increasing at a rate of 5 cm/sg. Find the speed at which point P recedes from the origin when x = 9.
Miguel Martín and Javier Pérez (University of Granada)

Solved exercises chapter 2 2 Solution
Let (x(t), y(t)) be the coordinates, measured in centimeters, of the point P at the instant t measured in seconds. They tell us that y(t) > 0 and that x(t) = y(t)2. The distance from point P to the origin is given by f (t) = px(t)2 + y(t)2 , so
′ x(t)x ′(t) + y(t)y ′(t) f (t) = px(t)2 + y(t)2
What we are asked for is f ′(to) knowing that x(to) = 9. In this case it must be y(to) = 3. We also know x′(t) = 5 (cm/sg). With this it is easy to deduce the value of y′(to) = x′(to) = 5. Finally,
2y(to) 6
′ x(to)x′(to)+y(to)y′(to) 45+3(5/6) 95
f (to)= px(to)2+y(to)2 = 81+9 =6√10 cm/s sorry is a lot

PLEASE HELP ILL MARK U AS BRANLIEST!

Answers

Answer:

Box A's volume is 384.75 cm^3 and Box B's volume is 295.75 cm^3. Box A's volume is greater than Box B's volume.

Step-by-step explanation:

This is a rectangular prism given that the box has different lengths.

Stated dimensions for each box,

Box A:

Length = 13 1/2 (13.5) cm

Width = 3 cm

Height = 9 1/2 (9.5) cm

Box B:

Length = 14 cm

Width = 3 1/4 (3.25) cm

Height = 6 1/2 (6.5) cm

All we have to do, is find the volume of each box, compare them to each other, and determine which volume in which box is the greatest.

Now, in order to find the volume of a rectangular prism, use the formula:

V = L · W · H

Where "L" represents length, "W" stands for width, and "H" represents height.

Given all of these values from the box's dimensions, we only have to plug it in this formula to find the volume.

Let's find Box A's volume:

V = L · W · H

Substitute values:

V = 13.5 · 3 · 9.5

V = 40.5 · 9.5

V = 384.75

Let's find Box B's volume:

V = L · W · H

V = 14 · 3.25 · 6.5

V = 45.5 · 6.5

V = 295.75

Compare the two values to see which is the greatest:

384.75 __ 295.75

384.75 > 295.75, Box A's volume is greater.

Now we know that Box A's volume is 384.75 cm^3 and Box B's volume is 295.75 cm^3. Box A's volume is greater than Box B's volume.

PLEASE HELP! I'LL MARK U AS BRAINLIEST!!

Answers

Answer

The length has 1 1/2 cubes, the width has 3 1/2 cubes, and the height has 2 1/2 cubes

Length 1 1/2width 3 1/2height 2 1/2

What is the surface area of the square pyramid? This includes the square base.

Answers

ANSWER: 360
Why because 6*6*10 is 360
How I got the other 6 is its equivalent to the other side

I think the answer may be 156

Answer pleaseeeeeeee

Answers

Answer: B

Step-by-step explanation:

Let's do each equation to find which has the value of 128. A is 2 to the power of 7 means you multiply 2, 7 times, so 2 times 2 is 4, 4 x 2 = 8, 8 x 2, 16, 16 x 2 = 32, 32 x 2 = 48, and 48 x 2 is 96, so answer A is incorrect. B is 2 times 4 to the power of 3 so 4 x 4 is 16 and 16 x 4 is 64, since I have to multiply that number by 2, I get a total of 128. Well that's the answer so the others are incorrect ( A, C, and D). Hopefully this helps :)

The bottom one 2^4x2^5 is the answer

Number line with open circle on 9 and shading to the left.
Which of the following inequalities best represents the graph above? (3 points)

a) x < 9

b) x > 9

c) x ≤ 9

d) x ≥ 9

Answers

Your answer is: x < 9

Answer:

a) x<9

Step-by-step explanation:

Since x is all the numbers less than 9, but not including 9 (since it's an open circle instead of a filled in one), then:

a) x<9

Someone please help! Answers from 1-12 because I'm not sure if I got the ones I answered right

Answers

Answer:

Step-by-step explanation:

HELP ME
Drag the tiles to the correct boxes to complete the pairs. Not all tiles will be used.
Match each equation to the value of a that makes the equation true.

Answers

Answer:

that's the answer I think

The answer is
1
3
0
2.

Hope this helps

whats the percent error?

Answers

18% because it’s about 17.94% but it’s rounded to the nearest percentage.

Answer: 18%

the percent error is 18 percent, rounded to the nearest percentage

Base your answer to the following question on the following maps and your knowledge of civics:

Two maps of the presidential election results from 2008 are shown. One map shows results by county. The land area of counties won by Republicans is greater than the land area of counties won by Democrats. Another map of Presidential election results by state. Approximately half of the states show Democrat winner, and the other half show a Republican winner. Red areas are focused on center of country.
© 2011 University of Michigan. Creative Commons License

What do these maps tell you about the 2008 election?

The Democrats won the most electoral votes in the election.
The Republicans won the most electoral votes in the election.
The Republicans won the majority of southern U.S. states.
The Democrats won in the majority of U.S. counties.Base your answer to the following question on the following maps and your knowledge of civics:

Two maps of the presidential election results from 2008 are shown. One map shows results by county. The land area of counties won by Republicans is greater than the land area of counties won by Democrats. Another map of Presidential election results by state. Approximately half of the states show Democrat winner, and the other half show a Republican winner. Red areas are focused on center of country.
© 2011 University of Michigan. Creative Commons License

What do these maps tell you about the 2008 election?

The Democrats won the most electoral votes in the election.
The Republicans won the most electoral votes in the election.
The Republicans won the majority of southern U.S. states.
The Democrats won in the majority of U.S. counties.

Answers

The Republicans won the most electoral votes in the election.

Interpreting the presidential election using the map description

From the question, we have the following parameters that can be used in our computation:

Description by county:

Land areas won by Republicans is greater than those won by Democrats.

Description by state:

Democrat winner = approximately half

Republican winner = approximately half

The above means that

The republican won the election

This is because;

When calculated by states, they have the same proportionWhen calculated by county, Republican hold more votes

Hence. The Republicans won the most electoral votes in the election.

Answers

Answer:

The Correct answer is A

The first option

Step-by-step explanation:

baseball only=18-x

basket ball only=17-x

let the number that play both baseball and basketball be x

30=18-x+17-x+x

30=35-x

-5=-x

x=5

baseball only

=18-x=18-5=13

basketball only

=17-x=17-5=12

The correct answer would be A

PLS HELP i only have 12min

Answers

Answer:

It Will Take 1.25 For One Table

Step-by-step explanation:

If You Do 10 / 8 It Equals 1.25 Therefore That Is Your Answer

Can you please help me??

Answers

Answer:

Multiply $55 by 0.15

Step-by-step explanation:

To find what 15% of the $55 makes we use the following expression:

55 ÷ 100 × 15

We can first divide 55 by 100.

55 ÷ 100 = 0.55

And then multiply it by 15.

0.55 × 15 = $8.25

Or, we can simply multiply $55 by 0.15 as given in the second option.

$55 × 0.15 = $.25

As we can see from the results, both ways works.

mutiply $55 by 0.15 bc its a 15 percent

Explain how got got the answer :) tysm

Answers

The first picture (measurement):
You take 22.86 and subtract 15.24 from it to get 7.62 cm from 3 inches

Divide 7.62 by 3 to get 2.54 (1 inch)

Multiply 2.54 by 50 = 127cm
The answer is 127cm

The second picture:

Part a (measurement):
Information given:
- An object on Mars is 70lbs weighs 210lbs on Earth
- An object weighs 160lbs on Earth, how much would it weigh on Mars?

Divide both sides by 42 (because 210 divided by 42 is 5 and 5 is a common factor in 160)
- 70lbs on Mars/42 = 1.6lbs
- 210lbs on Earth/42= 5lbs

It looks complicated but it isn’t!

1.6:5 ratio is given
Now multiply both sides of the ratio by 32
1.6 x 32= 51.2lbs on Mars
5 x 32 = 160lbs on Earth

The answer is 51.2lbs on Mars

Part b (shopping)
- 6 oranges for $2
- it is asking for the cost of 10 oranges

6 oranges/3 = 2 oranges
$2/3 = $.67

2 oranges x 5 = 10 oranges
$.67 x 5 = $3.35

Therefore the cost for 10 oranges is $3.35

- Hope this helps!

The action of the object is 127cm.

How to find the action of the object?

To find the action of an object in centimeters if it is 50 inches long, let the action of the object be [tex]x[/tex]

[tex]\frac{15}{6} =\frac{x}{50}[/tex]

[tex]15.4 * 50 = 6 * x[/tex]

[tex]\frac{762}{6} =\frac{6x}{6}[/tex]

[tex]x=127[/tex]

Therefore, the action of the object is 127cm.

A grocery store sells 6 oranges for $2. How much would it cost to buy 10 oranges? Round to the nearest cent if necessary.

cost per orange: $2/6 = $0.3333

cost of 10 oranges: $0.3333 x 10 = $3.3333 ($3.33 rounded up to the nearest cent)

Learn about cost of items here brainly.com/question/2236192

#SPJ1

I need help ASAP! I am offering brainiest to whoever answers the question first!

Answers

Answer:

Step-by-step explanation:

Answer: 3.75

Step-by-step explanation:

Add 6+5+0+1+1+10+7

The sum of those numbers should be 30!

We then calculate the amount of numbers in the equation, in this case it is 8.

So too answer it will be 30/8

Which is 3.75!

PLSSS help will give BRAINLISET!!!

Answers

Answer:

Step-by-step explanation:

To find the value of x, we first need to find the measure of its supplement, or the angle which, when added to x°, results in 180°, or a straight line.

We can find the measure of its supplement by using the fact that the measures of the interior angles of a triangle add to 180°.

Hence, we can form the following equation to solve for the measure of the supplement.

37° + 19° + s° = 180°

s° = 124°

Now, we can subtract the measure of the supplement from 180° to get x°.

x° = 180° - 124°

x° = 56°

We can cancel the degrees on both sides of this equation to solve for x.

(C) x = 56

C is correct! Just checked in test

Choose the inequality that represents the following graph.

Answers

Answer:

Step-by-step explanation:

because the circle is on top of 3 and its not shaded in so x is smaller than 3

C because of what they said^

For a given recipe, 8 cups of flour are mixed with 16 cups of sugar. How many cups of sugar should be used if 4 cups of flour are used? Assuming a constant ratio, fill out the table of equivalent ratios until you have found the value of x.

Answers

Answer:

Step-by-step explanation:

if u use half amount of cups then u would use double amount of sugar

Answer: 32

Step-by-step explanation:

Hey could i get help with this one?

Answers

Answer:85%

Step-by-step explanation:

The answer will be 85%

Complete the table for the given rule.

Answers

Answer:

y=2,

y=3,

y=4

Step-by-step explanation:

when x=4:

y = 1/4 * 4 + 1 = 4/4 + 1 = 2

when x=8:

y = 1/4 * 8 + 1 = 8/4 + 1 = 3

when x=12:

y = 1/4 * 12 + 1 = 12/4 + 1 = 4

2,3,4. apply it to when x is different

Question is there ⬇️⬇️⬇️⬇️⬇️⬇️⬇️

Answers

Answer:

4.9

Step-by-step explanation:

for this I used the sine rule so I did 6/sin 70 × sin 50

The answer would be 4.9

Kenneth graphed a system of equations.

Use the tables to find a solution.

The solution is (. )

Answers

Answer: (-1,0)

Step-by-step explanation:

After graphing both systems they both cross at (-1,0) a great tool to use in desmos, it's free and very efficient

Find the surface area of the rectangular prism.

Answers

Answer:

Step-by-step explanation:

Answer:

the answer is 48Ft

Pls help as soon as possible
On her first history exam, Priya received an 80. On the second history exam, her score increased by 15%. What was her score on the second exam?

Answers

Answer:

92%

Step-by-step explanation:

80 x 0.15% = 12

80 + 12 = 92

therefore her score on the second exam was 92%

Answer:

Priya's score on the second exam is 80+15%⋅80=80+12= 92

Step-by-step explanation:

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A figure can be broken into a parallelogram and triangle. Which formulas will you use to find the area of this irregular figure? Select all that apply. A = one-half b h A=b+h A=bh A=2bh A=2(b+h)

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A figure can be broken into a parallelogram and triangle.
Which formulas will you use to find the area of this irregular figure? Select all that apply.
A = one-half b h
A=b+h
A=bh
A=2bh
A=2(b+h)