Mathematics College

72°
Х
X=
degrees.
please help

72X=degrees.please Help

Answers

Answer 1

Answer:

18° lol it's too easy

Step-by-step explanation:

180-(90+72)

=180-162

=18°

Answer 2

Answer:

18 Degree

Step-by-step explanation:

all triangles the inside angle sum is 180 degree

so

72+90+x=180

162+x = 180

x= 180-162

x=18 degree

Related Questions

Marcos has 15 coins in nickels and quarters. He had 3 more quarters than
nickels. How many nickels and quarter does he have?

Answers

6 nickels 9 quarters

Here is a picture of a cube and the net of this cube what is the surface area of this cube enter your answer in the box

Answers

Answer:

Step-by-step explanation:

a = 12 mm

Surface area of cube = 6a²

                                   = 6 * 12 * 12

                                   = 864 cubic mm

★Answer[tex] \sf \pink{As \: We \: Know,} \\ \\ \tt \: \color{pink}\leadsto \: Surface \: Area \: Of \: Cube \: = {6a}^{2} \\ \\ \tt \green{ \: Here; \: a = 12mm }\\ \\ \tt \: \color{green}Surface \: Area \: = {6 \times 12 \times 12}^{} \\ \\ \pink{\leadsto \: = 864 {mm}^{3} }[/tex]Hence , The Answer is 864mm³.

x2y when x = - 3/4 and y = 8/15

Answers

Answer:

-4/5

Step-by-step explanation:

x2y

(-3/4)(2)(8/15)

(-3/2)(8/15)

-4/5

Help! I need to answer this on edge

Answers

your answer will be A

The function y=3x is growing slower than y=3^x

Step-by-step explanation:

hope it helps you

have a great day!!


Sean traded 1/7 of his baseball cards. What percentage of his baseball cards did Sean trade?

Answers

Answer:

Step-by-step explanation:

14%

Help Please!!!!!!!!!!!!
Graph x>4.

Answers

Answer:

graph

Step-by-step explanation:

This is your answer hope this helps


A square playpen has sides that are 4 feet long. What is the playpen's area?

Answers

Answer:

16

Step-by-step explanation:

A trapezoid has a base of 5cm, a height of 4cm. What is the area?

Answers

Answer:

area = 16 cm²

Step-by-step explanation:

area of rectangle = 3x4 = 12

area of triangle = 2x4x0.5 = 4

12 + 4 = 16 cm²

another way is :

1/2(b1+b2)(h) = area

1/2(3+5)(4) = 16 cm²

A study has been made to compare the nicotine contents of two brands of cigarettes. Ten cigarettes of Brand A had an average nicotine content of 3.1 milligrams with a standard deviation of of 0.5 milligram, while 8 cigarettes of Brand B had an average nicotine content of 2.7 milligrams with a standard deviation of 0.7 milligram. Assuming that the two sets of data are independent random samples from normal populations with equal variances, construct a 95% confidence interval for the difference between the mean nicotine contents of the two brands of cigarettes.

Answers

Answer:

−0.2226 ; 1.0226

Step-by-step explanation:

Given :

n1 = 10 ; n2 = 8 ; s1 = 0.5 ; s2 = 0.7 ; x1 = 3.1 ; x2 = 2.7

Confidence interval, two - sample, t procedure ;

μ1 - μ2 = (x1 - x2) ± Tcritical*S

S = sqrt[(s1²/n1) + (s2²/n2)]

S = sqrt[(0.5^2/10) + (0.7^2/8)]

S = sqrt[0.08625]

S = 0.2937

Tcritical at 95% confidence interval

df = 10+8 - 2= 16

Tcritical = 2.12

(3.1 - 2.7) ± 2.12*(0.2937)

0.4 ± 0.6226

(0.4 - 0.6226) ; (0.4 + 0.6226)

−0.2226 ; 1.0226

Hurry I really need it I have a timer

Answers

Answer:

228 m^2

Step-by-step explanation:

I rly hope im not to late

base is 6x6=36

each side is 8x6=48

48x4=192

192+36=228

One Positive number is five times another number the difference between the two numbers is 172 to find the numbers

Answers

Answer:

x= 43, y=215

Step-by-step explanation:

Let one number be x,

Let the other number be y.

x= 5y

x - y= 172

Putting value of x in equation 2.

5y - y = 172

4y = 172

y= 172/4

y= 43

Putting value of y in eq. 1

x= 5(43)

x=215.

What is the prime factorization of 120

Answers

2,60,2,30,2,15,3,5,1

What is the reciprocal of 56/87?

Answers

Answer:

87/448

Step-by-step explanation:

10=2x+12
What’s the steps

Answers

Answer: i got 10

Step-by-step explanation:

what ud o is 2x+12 let me see

10=2x + 12
-2x = 12 - 10
-2x=2
Divide both sides by -2
X=-1

HEPL A BROTHER OUT PLS 18 POINTS

Answers

Answer:

She didn't put the negitive in the 2. the 2 bottom boxes should be '-8x' & '-6' which in the end simplyfis to 4x² - 5x - 6

Step-by-step explanation:

A minibus sets off at 7.30 am and arrives
at its destination at 11.45 am.
How long did the journey take?

Answers

Answer:

4 hours and 15 minutes

Step-by-step explanation:

In a class of 40 students, the number of girls is 10 more than the number of boys. We have to find the number of girls and the number of boys in the class.

Let’s represent the number of girls by g, and the number of boys by b. Write the pair of linear equations you will get in g and b :

Answers

Answer:

b=15 g=25

Step-by-step explanation:

lets translate that story problem to mathematics equations

the problem told that no. of girls are 10 more than no of boys so this will =

g=b+10

then in class there are 40 students that means

g+b=40

now we have to equations with two variables then we should substitute

(b+10)+b=40

lets remove the brackets

2b+10=40 subtract 10 from both sides

2b=30 now divide both by 2

b=15 so g=25 after you write the equation once again with the new proof or number

A fair die, with its faces numbered from 1 to 6, is one in which each number is equally likely to land face up when the die is rolled. On a fair die, the probability that the number 6 will land face up is 16. A group of students wanted to investigate a claim about manipulating a fair die so that it favors one outcome. The claim states that if a fair die is put into an oven and baked at 200°F for 10 minutes, the inside of the die will begin to melt. When the die cools, the inside will be solid again, but with more weight toward the bottom. This shift in weight will cause the face that was up when the die cooled to land up more often that the other faces.
The students obtained a fair die and baked it according to the preceding directions. The die cooled with the number 6 face up. After the die cooled, they rolled the die 200 times, and the number 6 landed face up 43 times. Let p represent the population proportion of times the number 6 will land face up on the baked die if the die could be rolled an infinite number of times.
(a) Clarke, one of the students, constructed a 95 percent confidence interval for p as 0.215±0.057. Does the interval provide convincing statistical evidence that the number 6 will land face up more often on the baked die than on a fair die? Explain your reasoning.
(b) Aurelia, another student, suggested they conduct a significance test to investigate the claim. She tested the hypotheses H0:p=16 versus Ha:p>16 at the significance level of α=0.05. She obtained a test statistic of 1.83 with a p-value of 0.033. Do the results of the significance test agree with the results of Clarke’s confidence interval in part (a)? Explain your reasoning.
(c) Joachim, a third student, noted that the confidence interval in part (a) gives plausible values of the parameter as an interval between two values. He suggested that they develop a one-sided confidence interval because they were only concerned with whether the number 6 was landing face up more often than expected, not less often. The one sided-interval will determine a value L such that all plausible values of p are greater than L. The formula for L is L=pˆ+z∗pˆ(1−pˆ)n−−−−−√.
(i) Determine the values of z∗ needed to create the one-sided 95 percent confidence interval. Then calculate the value of L.
(ii) Do the results of Joachim’s one-sided confidence interval agree with results of Aurelia’s significance test in part (b)? Explain your reasoning.

Answers

Answer:

Kindly check explanation

Step-by-step explanation:

pˆ = 43 / 200 = 0.215

A.)

The confidence interval obtained :

0.215 ± 0.057 = (0.158 ; 0.272)

Since, 0.215 is within the confidence interval, we can conclude that, dice will lie face up on baked die more often than fair dice.

B.)

H0:p=16 versus Ha:p>16

Decision :

Reject H0 ; if Pvalue < α

Pvalue = 0.033 ; α = 0.05

0.033 < 0.05 ; we reject H0

HENCE, there is significant evidence to conclude that the proportion of face landing up on a baked dice is greater than 16. HENCE, it agrees with our conclusion in (1).

C.)

L=pˆ+z∗√pˆ(1−pˆ)n

Z critical for a one sided 95% confidence interval is 1.64

pˆ = 0.215

L = 0.215 + 1.64 * √(0.215*0.785) / 200

L = 0.215 + (1.64 * 0.1299134)

L = 0.215 + 0.213057976

L = 0.428

(-∞, 0.428)

Circle O has a circumference of approximately 44 in.
What is the approximate length of the diameter, d?
0 7 in
0 14 in.
d-11-
0 22 in
044 in

Answers

Answer:

44

Step-by-step explanation:

because yea

roshaun has saved 150$ and continues to add 10$ each week. Keegan starts with 0$ and saves 25$ each week. In how many weeks will they have the same amount of money?​

Answers

Answer:

10 weeks

Step-by-step explanation:

Create a system of equations demonstrating Roshaun and Keegan's savings.

Roshaun: 150 + 10x  Keegan: 0 + 25x  

Let x equal the number of weeks they save their money.

In order to calculate how many weeks they will have the same amount of money saved, we need to set their equations equal to each other and solve for x.

150 + 10x = 25x

Subtract 10x from both sides of the equation.

150 = 15x

Divide both sides of the equation by 15.

x = 10

In 10 weeks, Roshaun and Keegan will have the same amount of money.

The total area of a rectangle is represented by (x²+9 x+18) sq units.Find the expression for the dimensions of the rectangle.​

Answers

Answer:

x+3 units and x+6 units

Step-by-step explanation:

Give the total area of a rectangle is represented by (x²+9 x+18) sq units.F

Factorize

x²+9 x+18

- x^2 + 6x + 3x + 18

= x(x+6) + 3(x+6)

= (x+3)(x+6)

Since Area = Length * Width

The dimensions of the rectangle are x+3 and x+6 units

What is the greatest common factor of all the terms: 6m and 18

Answers

6 because you can take 6 out of 6m (you get m) and take 6 out of 18 (you get 3) but there is no greater factor to take out

Answer: 6

Step-by-step explanation:

help me I'm really swamped​

Answers

{H,o,n,l,u}

Just take away all the duplicate letters and voila. funny that i did that question yesterday.

Can you find the slope-intercept equation of each line and type the correct code? Please remember to type in ALL CAPS with no spaces.

Answers

Answer:

Step-by-step explanation:

line 1 is H

line 2 is C

line 3 is D

line 4 is G  

:)

173 The midpoint between x and a is m. What is x ?

Answers

If so, [tex]m=\frac{x+a}{2}[/tex] when solved for x will yield [tex]x=2m-a[/tex].

Hope this helps.

A beetle was running along a number line...The the bug ran from 13 to 57. What distance did it cover?If it took the bug 5 seconds, what was its average speed?

Answers

Answer:

8.8

Step-by-step explanation:

57-13=44

so the distance is 44 considering that it's on a number line.

Average speed = distance ÷ Time

44÷5=8.8

50! POINTS! HELP QUICK!
Which of the following is the equation for the graph shown?

y squared over 4 minus x squared over 12 equals 1
y squared over 16 minus x squared over 12 equals 1
x squared over 4 minus y squared over 12 equals 1
x squared over 16 minus y squared over 12 equals 1

50 points!

Answers

I believe it is the first option. Hope this helps!

The inverse of G(x) is a function.
A. True
. B. False

Answers

Answer:

The answer of this question is FALSE.

It’s Totally false lol

what is the name of the polynomial 7x+1 ?

Answers

Answer:

binomial

Step-by-step explanation:

PLEASE HELP (COMPLETE QUESTION B) 5TH GRADE MATH. GIVING AWAY BRAINLIEST

Answers

Answer:

Now that you have a completed table, you will have the coordinates (0, -3), (1, -1), and (2, 1). Mark these points on the coordinate grid and draw a straight line through the origin, (0, 0). Use part a as your advantage to answer part b.

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