Quadrilateral ABCD is inscribed In a circle.
What is the measure of angle A?

Quadrilateral ABCD Is Inscribed In A Circle.What Is The Measure Of Angle A?

Answers

Answer 1

Answer:

[tex] m\angle A = 133\degree [/tex]

Step-by-step explanation:

Quadrilateral ABCD is inscribed In a circle.

So, ABCD is a cyclic Quadrilateral.

Opposite angles of a cyclic quadrilateral are supplementary.

Therefore,

(4x + 5)° + (x + 15)° = 180°

(4x + 5 + x + 15)° = 180°

(5x + 20)° = 180°

5x + 20 = 180

5x = 180 - 20

5x = 160

x = 160/5

x = 32

[tex] m\angle A = (4x + 5)\degree [/tex]

[tex] m\angle A = (4\times 32+ 5)\degree [/tex]

[tex] m\angle A = (128+ 5)\degree [/tex]

[tex] m\angle A = 133\degree [/tex]


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Mark is putting a round fountain in his backyard. He decides to place bricks around the edge of the fountain. If the radius of the fountain is 1.5 feet, what is the length of the brick edge?

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Answer: 9.42ft :)

Step-by-step explanation: Your Welcome!!!

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Which is the equation of the line with slope 3 and y-
intercept 5.

Answers

Answer:

y=3x+5

Step-by-step explanation:

You will form it as Y=mx+b
So your answer will be Y=3x+5

You deposit 10,000 into a savings account that compounds quarterly. The account has an interest rate of 3.7%. What would be the value of the investment after 30 year

Answers

Answer:

30189.155

Step-by-step explanation:

Recall the compound interest formula :

A = P(1 + r/n)^nt

P = principal = 10000

r = rate = 3.7% = 0.037

n = quarterly = 4

t = 30

A = 10000(1 + 0.037/4)^30*4

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A = 10000(1.00925)^120

A = 10000 * 3.0189155

A = 30189.155

Express as a trinomial.
(x-9)(x+4)

Answers

X^2-5x-36
Hope this helps!

Need help.
Find the value of each variable.

Answers

It’s an isosceles triangle, so x would also equal 13, and now we just do the Pythagorean thrm

a^2+b^2=c^2

a=13 b=13

13^2+13^2= c^2

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Answer:

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Step-by-step explanation:

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When using a one-sample t-procedure to construct a confidence interval for the mean of a finite population, a condition is that the population size be at least 10 times the sample size. The reason for the condition is to ensure that the sample size is large enough the sample size is large enough A the central limit theorem is applicable for the sample mean the central limit theorem is applicable for the sample mean B the sample standard deviation is a good approximation of the population standard deviation the sample standard deviation is a good approximation of the population standard deviation C the degree of dependence among observations is negligible the degree of dependence among observations is negligible D the sampling method is not biased

Answers

Answer:

C. The degree of dependence among the observation is negligible.

Step-by-step explanation:

The conditions for performing a t-procedure when constructing a t-interval are;

1) The samples observation should be independent of each other

2) The use of a random sample or experiment for the procedure

3) Ensure the normality of the data of the dependent variable

Given that surveys usually involve sampling without replacement from a population which is finite can not be taken as independent Bernoulli trials however, it is allowable to still consider samples independent when they are less than 10% the size of population

Therefore, the reason for the condition is to ensure that the population to sample size ratio is large enough and that the degree of dependence among the observation is negligible.

How many deli sandwiches did she make?
Please help me.

Answers

Answer: 6 sandwiches

Step-by-step explanation:

To get the amount of roast beef that Marissa used you would have to subtract 2 3/4 from 5...which is 2.25 pounds of beef that she used.

Then you would divide 2.25 by 3/8 which is 6... meaning Marisa made 6 sandwiches!

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Answers

Answer:

x= -5

Step-by-step explanation:

-4 (x +3) = 8

-4x - 12 = 8

-4x = 20

x= -5

The answer is x=-5
You distribute to get
-4x-12=8
-4x=8+12
-4x=20
Divide both sides by -4
X= -5

A class of 30 children voted for their favorite actor who has played James Bond.

How many did not vote for George Lazenby?

Answers

Answer:

we know that the average number of

the class is 30 so we divide 1/10*30

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[Inequalities]
Please help and thanks. 1
write the inequality pls.

Answers

Answer:

1. x≥-2

2. x<-2

Step-by-step explanation:

Answer:

1. n≥=-2

2. n<=-2

Step-by-step explanation:

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determine which expression are equivalent to the expression -p(q+r+5)

Answers

Answer:5p-+q+r

Step-by-step explanation:

2b +4= -8
29 - 6 = 4
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can some one pls help me with these 3 question pls ​

Answers

Answer:

b = (-6). 2×-6 + 4 = -8

9= 5. 2×5-6 = 4

s=4. 3×4 = 12 , 12-4 = 8

What value of x satisfies this equation, x2−12=13?

Answers

Answer:x=5 and x=-5

Step-by-step explanation:

I need help in the answer it’s math

Answers

E

Step-by-step explanation:

lolkyuhgt5jjnnnnnnneeeee

Which trigonometric expression is to equal to the ratio 12/13 in the right triangle?

A. tan X
B. cos X
C. tan W
D. cos W

Answers

Answer:

[tex]\Huge\boxed{D}[/tex]

Step-by-step explanation:

Hello There!

To find the answer we want to find the trigonometric ratio for each answer choice

important note;

[tex]sin =\frac{opposite}{hypotenuse} \\\\cos=\frac{adjacent}{hypotenuse} \\\\tan=\frac{opposite}{adjacent}[/tex]

for A,

the opposite of angle X is  12 and the adjacent of angle x is 5

so [tex]tanX=\frac{12}{5}[/tex] therefore A is not the answer

for B,

the adjacent of angle x is 5 and the hypotenuse is 13

so [tex]cosX=\frac{5}{13}[/tex] therefore B is not the answer

for C,

the opposite of angle W is 5 and the adjacent of angle W is 12

so [tex]tanW=\frac{5}{12}[/tex] therefore C is not your answer

for D,

the adjacent of angle W is 12 and the hypotenuse is 13

so [tex]cosW=\frac{12}{13}[/tex] therefore D is your answer

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P(0, -4), Q(5, 1)
Can someone please help me with this?

Answers

Answer:

x-y=4

Step-by-step explanation:

(y+4)/(1+4) = x/5

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Answers

Answer:

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Step-by-step explanation:

What is 16% of 80?
PLEASE DO NOT SOLVE, I KNOW THE ANSWER IS 12.8. JUST WRITE A PROPORTION ON HOW YOU GET THE ANSWER

Answers

Answer:

12.8

Step-by-step explanation:

(16÷100)×80 = 12.8

To start, you need to move the decimal point over two places to the right, which gives you 0.16. You can then multiply 0.16 by 80, which gives you 12.8.

10 POINTS PLEASE HURRY

Answers

3,14.81/2 = 127.17
,,,,,,,,,

Answer:

Since there are an infinite number of lines through the center, the circle has an infinite number of lines of symmetry. When the circle is folded over a line of symmetry, the parts of the circle on each side of the line match up. This means that the parts of the circle on each side of the line must have the same area.

Step-by-step explanation:

What is the value of this expression?

{12÷(9−6)}+4×6

Answers

Answer:

12/9-6+(4)(6)

=12/3+(4)(6)

=4+(4)(6)

=4+24

=28

Need help with the correct answer please! Thank you. Which two triangles are congruent by the SSS Theorem? I picked D but that is the wrong answer.

Answers

Answer:

B

Step-by-step explanation:

RQ=TV

QS=VU

RS=TU

While proving that 2 triangles are congruent you have to consider the same side for both triangles.

The mistake you made was that you presumed that since both have equal sides they are equal,

In a sense that is true but you have align it in the correct way, in option D) it shows RQ is equal to TU which is wrong, RQ is equal to VT, you have align it in a proper way.

B) ΔRQS ≅ ΔTVU here it is align perfectly to be matched

Happy to help :)

If you need any more help, you can ask me

In the following equation, what number represents the y-intercept?

y = 2x – 10

1) 0

2) -1

3) 2

4) 10

Answers

Answer:

4) 10

Step-by-step explanation:

The number with x is slope and the other number is y-intercept so it's 10

In which step did Daniela make the first error?

Answers

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Add an attachment...

Triangle ABC is an acute triangle. Two sides measure 5 and 7. What is the range of possible values for its third side?

Answers

Answer:

the desired range is 2 < t < 12.

Step-by-step explanation:

If the third side is 12 (the sum of 5 and 7), we don't really have a triangle, since the 5-unit and 7-unit sides add up to 12 and lie on the third side (of length 12).

Since triangle ABC is acute, all its angles are between 0 and 90 degrees.  So the third side can be 12 but not greater.  The smallest possible length of the third side is 2, since 5 + 2 = 7.

Thus, the desired range is 2 < t < 12.

In the equation: y=3x, what is the 3 called?

Answers

3 is the Coefficient in the following expression.

Find the product of 0.75 x 2.1

Answers

Answer:

1.575

Step-by-step explanation:

0.75 x 2.1 = 1.575

Hope that helps!

Answer:

1.575

Step-by-step explanation:

what is 1/10 (3n+50)=35?​

Answers

Answer:

100

Step-by-step explanation:

1/10(3n+50)=35

3n+50=35*10

3n+50=350

3n=350-50

3n=300

n=300/3

n=100

Use the number line below to determine which of the following answer choices has statements that are all true

Answers

Answer: the last one

Step-by-step explanation: B REPRESENTS

-2 ½ . POINT D REPRESENTS 1 ¾ .

1 ¾ is bigger than -2 ½

The answer choice that has the statement that is true about the number line can be seen in the first option.

What is a number line?

A number line is a pictorial representation of lines on a calibrated straight line that serves as a basis for expressing real numbers on a straight line.

We should equally note that:

The left-hand side is the negative x-axis and,The right-hand side is the positive x-axis.

From the given figures;

Point A lies to the negative axis direction on point scale 4 i.e -4Point D lies extremely to another point scale so we can say it is [tex]\mathbf{1 \dfrac{3}{4}}[/tex]Since 3/4 is roughly 0.75 = 1 + 0.75 = 1.75

Therefore, we can conclude that Point A represents -4, Point D represents  [tex]\mathbf{1 \dfrac{3}{4}}[/tex] and  [tex]\mathbf{1 \dfrac{3}{4}}[/tex] > -4.

Learn more about number line here:

https://brainly.com/question/25230781

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