Mathematics College

I really need help with this ... I hope someone can help!

Answers

Answer 1

9514 1404 393

Answer:

∠B = 53°

∠C = 127°

∠D = 127°

Step-by-step explanation:

The trapezoid is isosceles, as indicated by the hash marks on sides AD and BC. This means it is symmetrical about the vertical center-line. Angles on the right will have the same measures as the symmetrical angles on the left.

So, you know immediately that ∠B = ∠A = 53°.

Because AB ║ DC, ∠A and ∠D are supplementary. That is, ...

∠D = ∠C = 180° -53°

∠D = ∠C = 127°

Related Questions

Round 1,857.205 to the nearest tenth

Answers

It would be 1,857.2.

Answer:

Answer 1,857.2

0-4 stays the same, 5 and over goes up once. But since the number after 2 is 0 and it falls in the section of 0-4, it stays the same.

Jordan solved the equation −7x + 25 = 48; his work is shown below. Identify the error and where it was made. −7x + 25 = 48 Step 1: −7x + 25 − 25 = 48 − 25 Step 2: −7x = 23 Step 3: negative seven times x over seven = twenty-three over seven Step 4: x = twenty-three over seven Step 1: He should have added 25 to each side. Step 1: He should have divided both sides by −7. Step 3: He should have divided both sides by −7. Step 3: He should have multiplied both sides by −7.

Answers

Answer:

Step 4 : he should have divided both sides by negative seven

Step-by-step explanation:

Write 1.63 repeating as a mixed number in simplest form. 63 is the only repeating part.

Answers

1 63/100. Nothing can be divided by both 100 and 63.

Answer:

18/11 also can you click you say thanks rate and click brainiest please

uhh jus look at the picture

Answers

The second one . The answer is b

Someone please tell me and also what b is

Answers

I think it is number two because 19-18=1 but I might be wrong.

18(b+19)=18
(18)(b)+(18)(19)=18
18b+342=18
18b+342-342=18-342
18b=-324
18b/18=-324/18
b=-18
(I hope i wasn’t too late)

PLEASE HELPP A GIRLLL OUTT !
The number of gifts Nikki can varies directly with the amount of time she spends wrapping them . She can wrap 14 gifts in 2 hours. How many gifts can she wrap in 6 hours

Answers

Answer:

42 gifts

Step-by-step explanation:

Multiply 14 by 3 to get 42 (6 hours worth of wrapping gifts)

2*3=6

14*3=42

If Nikki can wrap 14 gifts in 2 hours. Then she can wrap 42 gifts in 6 hours

What is Ratio?

A ratio is an ordered pair of numbers a and b, written a / b where b does not equal 0.

Given,

The number of gifts Nikki can varies directly with the amount of time she spends wrapping them.

The number of gifts nikki can wrap in 2 hrs=14.

Now we need to find how many gifts can she wrap in 6 hours.

Let x be the number of gifts she wrap in 6 hours.

2/14=6/x

1/7=6/x

Apply cross multiplication

x=7×6

x=42

Hence, Nikki can wrap 42 gifts in 6 hours.

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Rita made 5 batches of cookies. There was a total of 2400 cookies. If each batch contain the same number of cookies how many cookies were in 4 batches

Answers

Pretty sure the answer is 2,020 cookies

6 = 30 divided by blank

Answers

Answer:30 divided by 5 = 6

Step-by-step explanation:

Answer:

Step-by-step explanation:

6 = 30/x

multiply both sides by x

6x = 30

divide both sides by 6

x = 30/6 = 5

draw a visual model to solve 3/8 × 8/11

Answers

Answer:

Step-by-step explanation:

(3/8)*(8/11)=(3*8)/(8*11)= 24/88=12/44=6/22=3/11

or you can symplify 8 and get 3/11 right away.

Can someone help me plz

Answers

Answer:

-3/-6, 2/2

Step-by-step explanation:

I'm not really sure how else to finish this

Using the Prime Factorization for 27 and 54, what is the GCF

Answers

Answer:

The GCF is 27.

Step-by-step explanation:

hope this helps

The factors of 27 are: 1, 3, 9, 27

The factors of 54 are: 1, 2, 3, 6, 9, 18, 27, 54

Then the greatest common factor is 27.

If my coordinates are (3, 4) what is y?

Answers

Answer:

Step-by-step explanation:

(x,y)

4 = y
..................

Over the interval [0, 2pi), what are the solutions to cos(2x) = cos(x)? Check all that apply.

Answers

Answer:0, 2pi/3, 4pi/3

Step-by-step explanation:

did on edge

The solutions that satisfy Sin(2x) = Sin(x) are; 0,π/3, π, 5π/3. The options that satisfy the condition are 1,2,4 and 6.

What is meant by a trigonometric ratio?

In mathematics, trigonometric functions (also known as circular functions, angle functions, or goniometric functions) are real functions that relate an angle of a right-angled triangle to ratios of two side lengths.

Given the interval is [0, 2pi)

Sin(2x) = Sin(x)

By checking all the options;

1) Sin 2(0)=sin0

Sin0=Sin0

Therefore, option 1 is correct

2) Sin 2x= Sin x

2Sin x Cos x= Sin x

2 Cos x=1

Cos x=1/2

Cos x= Cos π/3

x=π/3

Therefore, option 2 is correct.

3) Sin2(2π/3) = Sin(2π/3)

Sin(4π/3)=Sin(2π/3)

Sin 240°=Sin 20°

-√3/2≠√3/2

Therefore, option 3 is wrong

4) Sin(2π)=Sinπ

2Sinπ Cosπ=Sinπ

2×0×(-1)=0

Therefore, option 4 is correct

5) Sin 2(4π/3)= Sin(4π/3)

Sin 480°=Sin 240°

2 Sin 240° x Cos 240°= Sin 240°

2(-√3/2)(-1/2)= -√3/2

√3/2≠-√3/2

Therefore, option 5 is wrong

6) Sin 2(5π/3)= Sin(5π/3)

2 Sin(5π/3)Cos (5π/3)=Sin(5π/3)

Cos(5π/3)=1/2

Therefore, option 6 is correct.

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At Dairy Land, 50% of the 32 ice cream flavors contain fruit. How many ice cream flavors contain fruit?

Answers

Answer:

hmmm i think you need to dod

Step-by-step explanation:

yeah

Answer:

Step-by-step explanation:

Working alone, Jamie can mow her lawn in 75 minutes. If Bob helps her, then the two can mow the lawn in 30 minutes. How long does it take Bob to mow the lawn alone?

Pls give explanation

20 POINTS + BRAINLIEST

Answers

9514 1404 393

Answer:

50 minutes

Step-by-step explanation:

"Working together" problems like this usually give you the time per task. However, the rates of getting work done add when expressed as tasks per time.

Let b represent the number of minutes Bob takes to mow the lawn alone. Then the sum of lawns mowed per minute is ...

Jamie's rate + Bob's rate = "working together" rate

1/75 + 1/b = 1/30

1/b = 1/30 -1/75

1/b = 5/150 -2/150 = 3/150

1/b = 1/50

b = 50

It takes Bob 50 minutes to mow the lawn alone.

845 ÷ 73

Divide. What is the remainder?

Answers

Answer:

Step-by-step explanation:

73*11= 803

845-803= 42

95.72 rounded to the nearest whole number

Answers

Answer:

Step-by-step explanation:

HELP!! GEOMETRY

25 points will mark brainlest if correct 25 points will mark brainlest if correct 25 points will mark brainlest if correct 25 points will mark brainlest if correct 25 points will mark brainlest if correct 25 points will mark brainlest if correct 25 points will mark brainlest if correct

Answers

Answer: The top answer

is that right answer I took that test

Step-by-step explanation:

Answer:

Step-by-step explanation: wrong 2

QUESTION 8
POIN
The roof pictured below has a rise of 10 feet and a run of 15 feet.
Run 15 feet
Rise - 10 feet
What is its slope?
Provide your answer below:
slope =
Next →
Previous

Answers

Answer:

it is root 325

pls mark me brainliest

Pythagorean theorem states that in a right triangle, the square of the hypotenuse is equal to the sum of the squares of the other two sides.

Slope = Rise² + Run²

Slope² = 10² + 15²

The slope is 5√13.

What is the Pythagorean theorem?

Pythagorean theorem states that in a right triangle, the square of the hypotenuse is equal to the sum of the squares of the other two sides.

We have,

The slope, rise, and run are in the form of a right triangle.

We will apply the Pythagorean theorem to get the slope.

Sope can be considered as the hypotenuse.

Now,

Slope = Rise² + Run²

Slope² = 10² + 15²

Slope² = 100 + 225

Slope² = 325

Slope = √325

Slope = √(25 x 13)

Slope = 5√13

Thus,

The slope is 5√13.

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a liner equation determines a line in the x-y plane true or false

Answers

Answer:

True

Step-by-step explanation:

Answer:

true- a linear equationdetermines a line in the x-y plane.

-8≤2/5(k-2)

How do i show my work
will give BRAINLEST

Answers

I solved the problem and am including the work along with the twos in the answer. I understand being able to do the work in your head but try to write down each step you do, even if it’s in you head. Have a nice day!

Brainliest if this is correct pls and thank you!

What quad is (-5,1) ?

Answers

Answer:

Step-by-step explanation:

because I said so damit

Type the correct answer in each box.

The point on the number line shows the opposite of ____ Or the opposite of ____ .

Answers

the answer would be 2.5

Answer:

the real answer -1/3 1/3

Step-by-step explanation:

who's gud at math :'))

Answers

Answer:

option B

Step-by-step explanation:

The difference of 16 and the product pf 5 and a number is no less than 1

Here no less than 1 means greater than or equal to 1

Answer:

I think

I hope this helps you!

Step-by-step explanation:

Axel has $1.77 in dimes and pennies in his coin jar. If he has one more penny than
dime, which equation can be used to determine x, the number of dimes he has?

Answers

10x + y = 1.77
Hope this helps.

Can you please answer this question for me

Answers

Answer:

16 girls

Step-by-step explanation:

answer choices 22 and 32 please help

Answers

The answer is 22, it would have to be much larger for it to be 32

Juwad picked 30 bags of apples on Monday and sold them at his fruit stand for $3.45 each.the following week he picked and sold 26bags
I do not understand this problem

Answers

Answer:

$89.70 or $192.30

Step-by-step explanation:

All you have to do is multiply 26 by 3.45 and you get your answer. Which if you use a calculator it would say 89.7, to find the answer you just add a zero to the end.

If you're doing the second answer you multiply 30 by 3.45, then you take 26 and multiply by 3.45, after that you add them together and you get your answer.

There are 2 pens for every 9 pencils. There is a total of 16 pens in the classroom. How many pencils are in the classroom? *

Answers

I would say that it is 81. I hoped this helped and the steps are first what is 16 divided by 2 is 9 then you do 9 times 9 witch is 81.

Answer:

there are 144 pencils

Step-by-step explanation:

9 · 16 = 144

hope this helps :)

What is the smallest positive composite number that does not have any prime factors less than 20?

Answers

Answer:

Factors of 20: 1, 2, 4, 5, 10,

Step-by-step explanation:

Other Questions

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