Complete the statements to find the measurements of ∠a and ∠b .

Complete The Statements To Find The Measurements Of A And B .

Answers

Answer 1

Answer:

∠a=80

∠b=50

Step-by-step explanation:

∠a and 100 are on a straight line. Therefore they are supplementary, and add to 180 degrees. So, we can say that:

∠a+100=180

To solve, subtract 100 from both sides. This will leave ∠a by itself.

∠a +100-100=180-100

∠a=80

The angles in a triangle must add to 180 degrees. Therefore,

∠a + ∠b + 50= 180

We know ∠a is 80, so we can substitute that in

80+ ∠b +50 =180

∠b+80+50=180

Combine like terms

∠b+(80+50)=180

∠b+130=180

To solve, subtract 130 from both sides. This will leave ∠b by itself.

∠b+130-130=180-130

∠b=50

Answer 2

Answer:

∠a = 80° and ∠b = 50°

Step-by-step explanation:

Look at angle a. Angle a and 100 both lie on the same line, which means they are supplementary and add up to 180. Then we can write: m∠a + 100 = 180. To solve this for a, we simply subtract 100 from both sides:

m∠a = 80°

Now, look at the triangle. All the angles in a triangle add up to 180, so we have the equation: m∠b + 80 + 50 = 180. Solve for b by subtracting 80 and 50 from both sides: m∠b = 50°.

Thus, ∠a = 80° and ∠b = 50°.


Related Questions

What point is an x-intercept of the quadratic function f(x)=(x-4)(x+2)

Answers

Answer:

x-intercepts (4,0) and (-2,0)

Step-by-step explanation:

f(x)=(x-4)(x+2)

f(x)=0=y

0=(x-4)(x+2)

x-4=0 or x+2=0

x=4 or x=-2

x-intercepts (4,0) and (-2,0)

1) 2(4 + 9w) =?
help me pls!

Answers

Answer:

8+18w

Step-by-step explanation:

Use the distributive property.

2*4 + 2*9w = 8+18w

please thank me, rate, and mark brainliest if you like!

;)

The answer should be 26w

azul bought 10 reams of paper at the store for $84. The tax on the purchase is $4. What was the cost of each ream of paper. Which equation can you use?
10r + 4 = 84
10r - 84 = 4
4 ( 10r) = 84
4 - 10r = 84

Answers

Answer:

should be A

Step-by-step explanation:

Answer:The answer is 10r-84=4

Step-by-step explanation:

How do you simplify 12/7

Answers

Answer: you can’t it is 12/7

Step-by-step explanation:

Answer:

You cant simplify 12 and seven since they dont have common factors,however you can divide which also applies as a simplification method

Step-by-step explanation:

12/7=1.71

factor polnomial 4p^2−16p+12

Answers

Answer:

4(p−1)(p−3)

Step-by-step explanation:

Factor 4p2−16p+12

4p2−16p+12

=4(p−1)(p−3)

Answer: (p-1)(p-3)

Step-by-step explanation:

See the answer below

Anthony deposited $500 into his bank account. A couple of days later he withdrew $40. The next day he
deposited $30. A day later, he withdrew $100. How much money is left in his account?

Answers

Answer:

$390

Step-by-step explanation:

First he has $500-$40=$460

So now he has $460+$30=$490

He has $490-$100=$390

$390 money is left in his account.

Explanation:

First, he has $500-$40=$460

So now he has $460+$30=$490

He has $490-$100=$390

What is an example of a word problem?

Word problems normally encompass mathematical modeling questions, where facts and statistics approximately a positive system is given and a student is required to expand a model. for example Jane had $five.00, then spent $2.00. How lots does she have now?

What are the three forms of word problems?

You could use three common varieties of word problems-- part-part-whole, separate and join and multiply and divide -- for everything from counting pennies to calculating a tip.

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How can you use the number of inches in one foot to find the number of square inches in one square foot?

Answers

There are 12 inches in 1 foot. You know that the area of a square is or base times hight. A square has the same base and height. So we can say (base)^2. If the base is 12 inches in this case 12^2 = 144. Answer: 144 square inches.

What are the different ways to combine the possible areas to find the area of the composite figure? Multiply the area of the rectangle by 2. Add the area of the rectangle with the area of the triangle. Multiply the area of the triangle by 2. Divide the area of the rectangle by 2.

Answers

Answer:

B. Add the area of the rectangle with the area of the triangle.

Step-by-step explanation:

Simple Answer..

The possible areas to find the area of the composite figure is; Add the area of the rectangle with the area of the triangle and Multiply the area of the rectangle by 2.

What is the area of the rectangle?

The area of the rectangle is the product of the length and width of a given rectangle.

The area of the rectangle = length × Width

The composite figure is made up of two shapesas; a rectangle and a triangle. To determine the total area of the composite figure, we can use one of the methods:

First Add the area of the rectangle with the area of the triangle:

We can find the area of the rectangle by multiplying its length and width. We can determine the area of the triangle by multiplying its base and height and then dividing by 2.

Once we get both areas, we can add them together to find the total area of the composite figure.

Multiply the area of the rectangle by 2:

Since the composite figure consists of two rectangles, we can determine the area of one rectangle and then multiply it by 2 to get the total area of the composite figure.

Therefore, by area, the answer will be x2 area of the rectangle and sum of the area of the rectangle and triangle.

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Please I really need help on this question, it would mean a great deal to me for any help.

Answers

Answer:

25

Step-by-step explanation:

Find the volume of both boxes

V = base * height

Bigger box

base = 50 * 30 = 1500

1500 * 20 = 30,000

Smaller box

b= 10 * 30 = 300

300 * 4 = 1200

30,000 / 1200= 25

Travis is at a carnival and has a chance to win a goldfish. He can either roll 2 or 3 on a six-sided fair die or pick either an A or B out of a hat which contains letters A, B, C, D, and E. Which game should Travis play to win a goldfish? Explain.

Answers

Answer:

Travis should pick to play the hat game.

Step-by-step explanation:

You would need to evaluate the probablity of winning in each option

Option 1 (rolling die)

p(roll 2 or 3)=2/6

p(roll 2 or 3)=1/3=.33

Option 2 (pick letters)

p(pick A or B) = 2/5

p(pick A or B) = .4

.33<.4

Since option 2 with picking letters has a higher chance of winning, then Travis should play the second game to win the goldfish as a higher chance of winning makes it easier for him to win the prize.

Find the area of the regular 15-gon with radius 5mm

Answers

1.Perimeter: [tex]\( P ≈ 31.05 \, mm \)[/tex]

2. Apothem: [tex]\( a ≈ 4.89 \, mm \)[/tex]

3. Area: [tex]\( Area ≈ 75.91 \, mm^2 \)[/tex]

So, the area of the regular 15-gon with a radius of 5 mm is approximately [tex]\( 75.91 \, mm^2 \).[/tex]

To find the area of a regular polygon, you can use the formula:

[tex]\[ Area = \frac{1}{2} \times Perimeter \times Apothem \][/tex]

Where:

- Perimeter is the total length of all the sides of the polygon.

- Apothem is the distance from the center of the polygon to the midpoint of any side.

For a regular polygon, the apothem can be calculated using trigonometry. In this case, the regular 15-gon (also called a pentadecagon) has 15 equal sides.

Let's break down the steps:

1. Calculate the Perimeter:

  The perimeter of a regular polygon with ( n ) sides can be calculated as [tex]\( P = n \times s \)[/tex], where ( s ) is the length of each side. Since we're given the radius of the polygon, we need to calculate the length of one side using trigonometry.

2. Calculate the Apothem:

  The apothem of a regular polygon can be calculated using the formula:

[tex]\[ a = r \times \cos\left(\frac{\pi}{n}\right) \][/tex]

  where ( r ) is the radius of the polygon, and ( n ) is the number of sides.

3. Plug the values into the Area Formula:

  Once you have both the perimeter and the apothem, you can plug them into the area formula and calculate the area.

Let's do the calculations:

1. Calculate the Perimeter:

  The length of one side ( s )) can be calculated using trigonometry. Since we're dealing with a 15-gon, each interior angle is[tex]\( \frac{(15-2) \times 180°}{15} = 156° \).[/tex]

  Using the law of cosines:

[tex]\[ s = 2 \times r \times \sin\left(\frac{180°}{15}\right) \][/tex]

[tex]\[ s = 2 \times 5 \times \sin(12°) \][/tex]

 [tex]\[ s ≈ 2 \times 5 \times 0.207 ≈ 2.07 \, mm \][/tex]

  So, the perimeter (( P )) is:

[tex]\[ P = 15 \times 2.07 ≈ 31.05 \, mm \][/tex]

2. Calculate the Apothem:

[tex]\[ a = 5 \times \cos\left(\frac{\pi}{15}\right) \][/tex]

 [tex]\[ a = 5 \times \cos(12°) \][/tex][tex]\[ a = 5 \times \cos\left(\frac{\pi}{15}\right) \][/tex]

[tex]\[ a ≈ 5 \times 0.978 ≈ 4.89 \, mm \][/tex]

3. Plug the values into the Area Formula:

[tex]\[ Area = \frac{1}{2} \times 31.05 \times 4.89 \][/tex]

[tex]\[ Area ≈ \frac{1}{2} \times 31.05 \times 4.89 ≈ 75.91 \, mm^2 \][/tex]

So, the area of the regular 15-gon with a radius of 5 mm is approximately [tex]\( 75.91 \, mm^2 \)[/tex].

there were 15 girls and 25 boys in a science club . what percent of the members were girls?

Answers

Answer:

The answer is 37.5%

Answer:

37.5%

Step-by-step explanation:

add 15+20 =40     15/40 *100(we use 100 because  a percent is always out of 100.) 0.375*100. = 37.5

Will give brainiest if answered plzz helppp!!!!

Answers

Answer:

5.375 square ft

Step-by-step explanation:

Side of squre = 5 ft

Diameter of semicircle = 5ft

Radius of semicircle (r) = 5/2 cm = 2.5 cm

Area of green part of logo = area of square - 2 times area of one semicircle

[tex] = {side}^{2} - 2 \times \frac{1}{2} \pi {r}^{2} \\ \\ = {5}^{2} - 3.14 \times {(2.5)}^{2} \\ \\ = 25 - 3.14 \times 6.25 \\ \\ = 25 - 19.625 \\ = 5.375 \: {ft}^{2} \\ [/tex]

What is the GCF of 6 and 35

Answers

1 The factors of 6 are: 1, 2, 3, 6 The factors of 35 are: 1, 5, 7, 35 Then the greatest common factor is 1

Answer:

The GCF is 1

Step-by-step explanation:

Step 1:  Find the factors of both 6 and 35

6 → 1, 2, 3, 6

35 → 1, 5, 7, 35

To find the factors, both of the sets should have the same number.  The highest number that is in both sets is the GCF.  So... I have the GCF bold on top to show that the answer is 1.

Answer:  The GCF is 1

Find the x-intercepts for the parabola defined by the equation below.
y=x² + 9x+ 14

Answers

Answer:

(-2,0) and (-7,0).

Step-by-step explanation:

Hope this helps!

(-2,0) and (-7,0) is what I got also

What is the solution to the system of linear equations graphed below?

On a coordinate plane, 2 lines intersect at (3.5, negative 4).
(3 and one-half, negative 4)
(Negative 4, 3 and one-half)
(0, 3)
(0, negative 4)

Answers

Answer:

the answer is d

Step-by-step explanation:

i took the quiz on Edge

The solution to the system of linear equations graphed below if, On a coordinate plane, 2 lines intersect at (3.5, negative 4) is (0, negative 4).

What is a linear equation?

A linear equation is one that has a degree of 1 as its maximum value. No variable in a linear equation, thus, has an exponent greater than 1. A linear equation's graph will always be a straight line. Functions like y = mx, where m can be any constant, are considered linear equations.

Given:

On a coordinate plane, 2 lines intersect at (3.5, negative 4),

the coordinates of the intersection point are (3.5, -4)

The equation of must satisfy these coordinates,

On the y-axis line will have no x-intercept i.e. x = 0

Hence, the coordinates will become (0, -4)

Thus, the solution to the system of linear equations graphed below is (0, negative 4).

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Box plots for chapter 6 test scored of two classes are shown.

Answers

Answer:

There is a 5% difference

Step-by-step explanation:

80%-75%=5%

-2=g-9

Please Help!!!

Answers

Answer:

g = 7

Step-by-step explanation:

you add 9 to 9 and cancle it out . then you add 9 to -2 and you get 7 = g . just switch it around and you get your answer .

Answer:

7=g

Step-by-step explanation:

Ming is walking around a circular track. The diameter of the track is approximately 125 meters. If Ming walks around the track 5 times how many total meters will she walk? Round your answer to the nearest whole meter.

Pd: the answer is 1963 but I don’t know the process.

Answers

Answer:

[tex]1,963\ m[/tex]

Step-by-step explanation:

step 1

Find the circumference of the circular track

The circumference is given by the formula

[tex]C=\pi D[/tex]

we have

[tex]D=125\ m[/tex]

assume

[tex]\pi=3.14[/tex]

substitute

[tex]C=(3.14)(125)=392.5\ m[/tex]

step 2

If Ming walks around the track 5 times, then to find out the total meters that she will walk, multiply the circumference of the circular track by 5

[tex]392.5(5)=1,963\ m[/tex]

adams closet measures 36 inches by 24 inches by 96 inches. what is the longest distance between corners inside his closet? round to the nearest tenth

Answers

Answer:

The longest distance between corners inside his closet is 105.3 inches

Explanation:

Adam's closet is given in the form of a rectangular prism as shown below. Here, we know that:

[tex]Length=L=26in \\ \\ Width=W=24in \\ \\ Height=H=96in[/tex]

The longest distance between corners inside his closet is given by the formula:

[tex]d=\sqrt{L^2+W^2+H^2} \\ \\ Substituting \ values:\\ \\ d=\sqrt{36^2+24^2+96^2} \\ \\ d=\sqrt{11,088} \\ \\ d=105.29 \\ \\ \\ \text{Round to the nearest tenth} \\ \\ d=105.3[/tex]

Then:

The longest distance between corners inside his closet is 105.3 inches

Find negative square root of 49. (4 points)

Answers

Answer:

-7

Step-by-step explanation:

hope this helps

HELP!!!! Need help with this!!

Answers

Answer:

x=45

Step-by-step explanation:

so use the formula a²+b²=c²

the a is 6

the b is x (unknown)

the c is 9

6² is 36, and 9² is 81

to find the missing side subtract a (36) from c (81)

the answer is x=45

Worksmith is offering a $25 mail-in rebate on the purchase of a power drill. If the sellingprice is $149.54, what is the final price after the mail-in rebate?

Answers

$124.54 is the answer

Mr.Baker creates 35 math test problems in 5 hours for the upcoming math pop quiz. How many questions does Mr.Baker create in 3 hours?

Answers

Answer:

21 questions

Step-by-step explanation:

First find the unit rate by dividing question number by hours  

35/5=7

So he makes 7 questions per hour

Multiply 7 by 3

7*3=21

So, he makes 21 questions in 3 hours

Hope this helps! :)

11.6

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If (-5+z) is positive, but (-6+z) is negative, what is one number that z could be?

Answers

The answer could be five
Final answer:

The number that satisfies both conditions (-5+z being positive and -6+z being negative) given in the question is z = 6.

Explanation:

To solve this problem, we use the clues given in the question that (-5+z) is positive and (-6+z) is negative. A number, when added to -5, resulting in a positive one, must be greater than 5. However, when the same number is added to -6, it results in a negative answer, meaning it must be less than 6.

Considering both conditions and finding a number that meets them, we can see that z = 6 is the only possible option. This is because 6 is greater than 5 making -5+6 positive. However, since 6 is equal to 6, -6+6 equals zero, and zero isn’t considered negative, thus satisfying both conditions.

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A circle with radius 4 centimeters.
What is the area of this circle in terms of pi?
8Pi cm2
16Pi cm2
32Pi cm2
64Pi cm2

Answers

Answer:

= 16 pi cm²

Step-by-step explanation:

Area of a circle = pi × r ²

Where r = radius = 4cm

Therefore

Area = pi × 4²  cm²

Area = pi × 4 × 4 cm²

Area = pi × 16 cm²

Area = 16 pi cm²

I hope this was helpful, please rate as brainliest

=16 pi cm2 hope this helped

Just trying to finish this class! Helppp

Answers

Answer:

I think it is the second one

Select all the equations where n= 6 is a solution.
Choose 3 answers:

4=10-n
3=n/2
12=n+7
8n=48
5+n=8

Answers

1, 2, and 4

hope this helps
Final answer:

The correct equations where n=6 is the solution are: 4 = 10 - n, 3 = n / 2, and 8n = 48. This is determined by substituting n = 6 into every equation and checking if both sides equate.

Explanation:

The topic being explored here is identifying the proper equations with n = 6 as the solution. This involves plugging in the value of n (which is 6) into each equation and checking if the equation holds true.

4 = 10 - n becomes 4 = 10 - 6, which simplifies to 4 = 4. This is true. 3 = n / 2 becomes 3 = 6 / 2, which simplifies to 3 = 3. This is true. 12 = n + 7 becomes 12 = 6 + 7, which simplifies to 12 = 13. This is false. 8n = 48 becomes 8*6 = 48, which simplifies to 48 = 48. This is true. 5 + n = 8 becomes 5 + 6 = 8, which simplifies to 11 = 8. This is false.

Therefore, the correct equations where n = 6 is the solution are: 4 = 10 - n, 3 = n / 2, and 8n = 48.

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the snowfall total two years ago was 10.2 inches. last years was 20% grater. what’s last years snowfall total

Answers

12.24 inches

you would do 10.2 x 1.2

Answer: 12.24

Step-by-step explanation:

Create a cylinder with a height of 9 cm
and a radius of 5 cm.

Notice that the estimated volume calculation is 706.9 cm3.

What do you notice about the volume?

Answers

Answer:

its four times larger

Step-by-step explanation:got it right on the test

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