Mathematics College

If mBC = mBD =140 degrees then What is m

Answers

Answer 1

9514 1404 393

Answer:

40°

Step-by-step explanation:

The sum of arcs of a circle is 360°, so the measure of arc CD is ...

CB +BD +CD = 360°

CD = 360° -140° -140° = 80°

The measure of inscribed angle B is half the measure of the arc it subtends:

∠B = arc CD/2 = 80°/2

∠B = 40°

Answer 2

Answer:

40 degrees

Step-by-step explanation:

Related Questions

HELP MEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEE

Answers

Answer:

I'd say D

Step-by-step explanation:

For the rectangle shown, which equation can be used to find the value of x?

Answers

Answer:

Pythagorean theorem [tex]a^{2} +b^{2} =c^{2}[/tex]

Step-by-step explanation:

[tex]a^{2} +b^{2} =c^{2} \\x^{2} +3.6^{2} =7.4^{2} \\x^{2} +12.96=54.76\\x^{2} =\sqrt{41.8} \\x=6.47\\[/tex]

The value of x is 6.46 inch.

What is Pythagoras theorem?

Pythagoras theorem states that “In a right-angled triangle, the square of the hypotenuse side is equal to the sum of squares of the other two sides“.

Given: breadth = 3.6, diagonal= 7.4

Using Pythagoras theorem,

H²=P²+B²

(7.4)²= (3.6)²+B²

54.76=12.96 + B²

54.76-12.96=B²

41.8= B²

B= 6.46 inch.

Hence, the value of x is 6.46 inch.

Learn more about Pythagoras theorem here:

https://brainly.com/question/343682

#SPJ2

what is the value of v in 2.5v = 125

Answers

Answer: v=50

Step-by-step explanation:

2.5 v=125

v=125/2.5

v=50

Answer:

v=50

Step-by-step explanation:

[tex]\frac{2.5v}{2.5} =\frac{125}{2.5}[/tex] divide both sides by 2.5 to isolate v

v=50

I need help on the pcture

Answers

Answer:

Where is it?

Step-by-step explanation:

You need to add a picture

find the vertex h(r)=r^(2)+11r-26 PLEASE HELP ME FIGURE THIS OUT

Answers

Answer: Look at the picture

Step-by-step explanation: Hope this help :D

x = -3.
3.2 2 - 16=(x-1)=?

Answers

Answer:

dvide it

Step-by-step explanation:

PLZ IT'S VERY IMPORTANT
Find the perimeter

Answers

Answer:

118 cm

Step-by-step explanation:

8 + 16 + 22 + 29 + (29-16) + (8+22) = 118 cm

solve this equation -3x - 8 = 18

Answers

8.67 (rounded to the nearest tenth)

The Yert family hires a landscaping company for 30 weeks. There are two companies to choose from. Green Lawns charges 1 for the first time they service your lawn, and the price will multiply by a factor of 0.90 every week thereafter. Green Thumbs charges 400 for the first time they service your lawn, and then charges an additional 45 every week thereafter. At 30 weeks, if the Yert family chooses the company that is cheaper, how much money will they save?

Answers

Do you need help or u just wanted the answer

Heeeeeeeelp pleaaase

Answers

Answer:

13u√2u

Step-by-step explanation:

Remark

Removing factors from under the square root sign means factoring the numbers into prime factors. If there are an even number of equal prime factors, take one out and throw one away for all the primes that are the same. An odd number of factors always leaves 1 under the root sign.

For example

u^3 = u * u * u

One of the u's will be left behind. Of the two others, one will be discarded and one will be taken outside the root sign.

√u^3 = √(u * u * u) = u√u

one u taken out. 1 u left behind 1 u discarded.

Question Breakdown

8√72u^3 = 8√2*2*2*3*3 u^3 = 8* 2*3 * u * √2u = 48u*√2u7√128u^3 = 7√(2*2*2*2*2*2*2 u^3) = 7*2*2*2 √2u = 56u√2u3u*√98u = 3u * √(7*7 * 2*u) = 21u√2u

Answer

48u√2u - 56√2u + 21u√2u

13u√2u

Solve for x.

O 72.5
O 31.6
O 26
O 11.9

Answers

answer 11.9

D aka))h)

A bottled water distributor wants to determine whether the mean amount of water contained inâ 1-gallon bottles purchased from a nationally known water bottling company is actually 1 gallon. You know from the water bottling company specifications that the standard deviation of the amount of water is 0.008 gallon. You select a random sample of 50 bottles, and the mean amount of water perâ 1-gallon bottle is 0.995 gallon.

Required:
a. Is there evidence that the mean amount is different from 1.0 gallon?
b. What is the test statistic?
c. Compute theâ p-value and interpret its meaning.
d. Construct a 95% confidence interval estimate of the population mean amount of water perâ 1-gallon bottle.

Answers

Answer:

1. There is evidence that mean is different from 1.0 gallon

2. test statistic = -4.42

3. p value = 0.00001

4. 0.9928,0.9972

Step-by-step explanation:

h0: u = 1.0

h1: u not equal to 1.0

alpha = 0.05

sd = 0.008

n = 50

mean = 0.995

standard error se = 0.008/√50 = 0.00113

test statistics calculation

0.995-1/0.00113

= -0.005/0.00113

= -4.42

p value calculation

using the z test statistics and alpha = 0.05

the p value using a p value calculator = 0.00001

0.00001<0.05

so we Reject the null hypothesis

we conclude there is enough evidence that mean is different from 1.0

95% confidence interval

Z alpha/2 = 0.025

we find z value using excel function

NORMSINV (0.025)

|Z| = 1.96

Standard error se = 0.00113

margin of error E = 1.96 x 0.00113 = 0.0022148

confidence interval =

0.995 - 0.0022148, 0.995 + 0.0022148

= 0.9928, 0.9972

Find the third quartile Q3 of the list of 24 sorted values shown below.
30 31 31 37 38 38 39 39 42 42 43 46 47 48 50 52 54 57 61 63 68 69 76 79
The third quartile Q3 is
(Type an integer or a decimal.)

Answers

Answer:

Step-by-step explanation:

The computation of the third quartile is given below:

The third quartile Q3 is

= 3(n + 1)÷ 4

= 3 (24 + 1) ÷ 4

= 75 ÷ 4

= 18.75th term

Now the 18.75th term is

= 18th term + 0.75 term

= 57 + (19 term - 18term)

= 57 + 0.75 (61 - 57)

= 57 + 0.75 (4)

= 60

help me please and answer correctly people answer wrong on purpose

Answers

Sorry for not answering your question but please I am telling you guys don’t fall for someone when they send you links here like this first person above me he send a link don’t press it y’all don’t this is really bad it makes your phone really bad

Ceasar opens a bank account and makes an initial deposit of $800. The banker tells Ceasar that he is going to receive an annual rate of 10% compounded continuously on his investment. Find the bank balance assuming Ceasar leaves the account untouched for 8 years.

Can you please do the problem using the formula A(t)=pe^(rt).

Answers

Answer:

1780.43

Step-by-step explanation:

Given:

P = 800

r = 10% or 0.1

t = 8

1780.43 i just took the test jit

hi can anyone help me with this

Answers

Answer:

i think you should multiply 6cm by 8 cm by 10 cm ..sorry if it was not vlear but i try:)

Find the 70th term of the arithmetic sequence 29, 17, 5

Answers

Answer:

857

Step-by-step explanation:

70th term = a + d(n-1)

d= 29-17=12

a=29

n-1 = 69

70th term = 29 + 12×69

= 29 + 828

= 857

Write an equation to represent the following description. Seventeen more than eight times a number is −6.

Answers

8x + 17 = -6

(you can use a different variable to replace x if you need to :D)

Algebraic Expression:
There are c cyclists in a cycle race. 3/4 of the cyclists finish the race. How many cyclists did not finish the race?

Answers

Answer:
c - 3/4
Explanation:
Subtract 3/4 from c to find how many cyclists did not finish the race.

sorry if its twisted but i need help in # 3 please :)

Answers

Answer:

knsy standard ka question hy

Step-by-step explanation:

help me with this please

Answer:

1/5%

Step-by-step explanation:

The percentage of the model shaded green will be 20.

How to find how much percent 'a' is of 'b'?

Suppose a number is 'a'

Suppose another number is 'b'

We want to know how much percent of 'b' is 'a'.

Then, it is calculated as:

[tex]\dfrac{a}{b} \times 100[/tex]

(in percentage)

The total number of the box in the figure is 100.

The total number of shaded green = 20

So,

[tex]\dfrac{20}{100} \times 100[/tex]

20%

Therefore, The percentage of the model shaded green will be 20.

Learn more about percent here:

https://brainly.com/question/11549320

#SPJ2

Pls help 10 ptsssssssssssss
NO LINKS

Answers

4.5. 4x4.5=18. 18 divided by 4 is 4.5

(4-3i)(1+2i)
I have so many of these

Answers

Answer:

-6i^2+5i+4

Step-by-step explanation:

Rearrange Terms

(-3i+4)(1+2i)

(-3i+4)(2i+1)

Distribute

-3(2i+1)+4(2i+1)

-6i^2-3i+4(2i+1)

-6i^2-3i+8i+4

Combine Liker Terms

-6i^2+5i+4

Solution

-6i^2+5i+4

Answer:

-2 + 5i

Step-by-step explanation:

Remember these rules:

real times real = real (e. g., 4(1) = 4)

real times imaginary: imaginary (e. g., 4(2i) = 8i)

imaginary times real imaginary

imaginary times imaginary: real with a negative sign (e. g., (-3i)(2i) = +6

Once again: work out (-3i)(2i). We get (i^2)(-6) = +6

In summary: your (4-3i)(1+2i) becomes 4 + 8i - 3i - (i^2)(-6), or

4 + 5i - 6, or -2 + 5i

Lee la siguiente información.
En una olimpiada matemática, cada estudiante recibe un punto por cada pregunta acertada que tenga, en la siguiente tabla de frecuencias se muestra la clasificación de la cantidad de estudiantes de acuerdo con su puntaje obtenido.

De acuerdo con la tabla, ¿cuál es aproximadamente la desviación estándar?
A.
6,12
B.
7
C.
8,42
D.
9

Answers

La desviación estándar se puede calcular mediante la fórmula

S = √∑fx² / n - (∑fx / n) ²

La desviación estándar es 6,12

Poner los valores de la tabla en la hoja de Excel dada.

s = √381430 / 60 - (4770/60) ²

s = √6357.167 -6320.25

s = √36,917

s = 6,0759

Cuando se redondea daría 6,1

The standard deviation can be calculated using the formula

S= √∑fx²/n - (∑fx/n)²

The standard deviation is 6.12

Putting the values from the table in the given excel sheet.

s= √381430/60 - (4770/60)²

s= √6357.167 -6320.25

s= √36.917

s= 6.0759

When rounded would give 6.1

https://brainly.com/question/475676

https://brainly.com/question/18562832

A random sample of 146 recent donations at a certain blood bank reveals that 81 were type A blood. Does this suggest that the actual percentage of type A donations differs from 40%, the percentage of the population having type A blood

Answers

Answer:

We reject H₀ the actual percentage of type A donations differs from 40%

Step-by-step explanation:

Sample information:

sample size n = 146

Type A x₁ = 81 and p₁ = 81 / 146 p₁ = 0,5547

then q₁ = 1 - p₁ q₁ = 1 - 0,5547 q₁ = 0,4453

We choose as significance level α = 5% α = 0,05 α /2 = 0,025

from z-table we find z (c) = 1,96

National % of the population ( μ = 40 % μ = 0,4 )

Test hypothesis

Null hypothesis H₀ p₁ = μ

Alternative Hypothesis Hₐ p₁ ≠ μ

The Alternative hypothesis indicates that the test is a two-tail test

z(s) = ( p₁ - μ )/ √ p₁*q₁ / n

z(s) = ( 0,5547 - 0,40 )/ √ 0,5547*0,4453 / 146

z(s) = 0,1547 / 0,041

z(s) = 3,77

Comparing z(s) and z(c)

z(s) > z(c)

z(s) is in the rejection region. We reject H₀. Sample does not give evidence to support that the actual percentage of type A donations is equal to the national population

Other Questions

9 apples and 6 oranges cost $33. 18 apples and 20 oranges cost $80. how much does one apple and one orange cost? Whats the definition of profits? A model airplane in Yesinia's collection is at a 1:40 scale to the actual plane. If the model is 7.5 inches long, what are the dimensions of the actual airplane in feet? The artery that bifurcates into the right subclavian artery and the right common carotid artery is the:O brachiocephalic arteryO right common iliac arteryO right brachial arteryO right coronary arteryO superior vena cava When you give constructive criticism, you should always (3 points) A. be respectful B. give feedback right away C. Suggest major changes D. talk before thinking How does the government use the tax money it collects from U.S. citizens what are the top four categories? the paris paint company is in the process of planning labor force requirements and production levels for the next four quarters. the marketing department has provided production with the following forecasts of demand for paris paint over the next year:Assume that Paris currently has 80,000 gallons of paint in inventory and would like to end the year with an inventory of at least 20,000 gallons a. Determine the minimum constant workforce plan for Paris Paint and the cost of the plan. Assume that stock-outs are not allowed. b. If Paris were able to back-order excess demand at a cost of $2 per gallon per quar ter, determine a minimum constant workforce plan that holds less inventory than the plan you found in part (a), but incurs stock-outs in quarter 2. Determine the cost of the new plan. c. Formulate this as a linear program. Assume that stock-outs are not allowed. d. Solve the linear program. Round the variables and determine the cost of the resulting plan. The table of ordered pairs shows the coordinates of the two points on the graph of a line. Which equation describes the line?. y=x+7c. y=-5 x+2b. y=x-7d. y=5 x+2Please seiect the best answer from the choices providedP.8C. In which role does the president serve as the head of the military Brainly? Sydney pays a flat rate of $20 plus arate of 7 cents per minute in her phoneplan. Which function shows the cost, "C",of Sydney's plans as a function of timein minutes? How does the speaker feel about walls between neighbors? Select the correct text in the passage.Which detail best shows the idea that the father enjoyed growing up in Clarksburg?(9) The biggest fish I ever saw caught I did not catch. Brother Henry, who was nine years older than I, caught it. It was a cat-fish, and Henry and a boy named Billy James, who was less than six feet tall, ran a pole through the fish's gills and carried the fish between them suspended from the pole which was rested upon the boys shoulders, and the fish was so long that its tail tipped the ground as the boys walked. Now, this is the biggest fish story I ever tell, except the Jonah story, and I believe both.(10) We liked Clarksburg because it was a good place for schools, Sunday Schools and churches. I hardly remember the time when I was not in school, Sunday School and church. I think to this day these are good places for boys to be.(11) My parents were always anxious to have their children in school and made many sacrifices to this end; as a result their five boys all were public school teachers before they were out of their teens. Under HIPAA, a covered entity (CE) is defined as: How do you prove that two right triangles are similar? Which process of the enterprise platform interact with vendors and manages the entire supply chain for Airtel client? What we can learn from senior citizens? What is monetary policy short answer? How do you find the base of an isosceles triangle with legs? Can you be claimed as a dependent by another taxpayer? the ______ is fenestrated.