ZA and B are complementary angles. If m_A = (x – 15)° and m ZB = (x + 3)º, then find the measure of ZB.​

Answers

Answer 1

Answer:

ZB = 54

Step-by-step explanation:

Complementary angles add to 90 degrees

ZA + ZB = 90

x-15 + x+3 = 90

Combine like terms

2x-12 =90

Add 12 to each side

2x-12+12 = 90+12

2x = 102

Divide by 2

2x/2 = 102/2

x = 51

We want to find the measure of ZB

ZB = x+3

ZB = 51+3

ZB = 54


Related Questions

What is the first step to figure out the solutions for x in the following equation?
|x - 3| +2=6

Answers

Subtract 2 form both sides

ARITHMETIC SEQUENCES, what comes next after -2/25? I will Mark you as BRAINLIEST pls help

Answers

Answer:

26/5

Step-by-step explanation:

an=a1+(n-1)d

d is common difference

so,

2/5- (-2)=12/5

putting values in above formula

 =-2+(4-1)(12/5)

=-2+3(12/5)

=-2+(36/5)

=26/5

HELP MEEEEEEE PLEASE

Answers

Answer:

choice 2) 2/9h

Step-by-step explanation:

It has to be a fraction so you would cross out the first answer.

Please help! This is due today!​

Answers

te amo vato de arriba, ojalá y algún día seas mi novio y me mandes la visa y unos cuantos dólares pa'l frí fayer y comprarme más cosas de marca :"3

en fin... nunca me vas a hacer caso :")

Convert. (13/5) into a mixed number.

Answers

Answer:

2 3/5 :)

Step-by-step explanation:

girl name are April, may, June, what is the name the mother?​

Answers

mary is the 4th childs nam,e

Please give a logical reason to support this statement:

Modern technology helps businesses grow and increase its productivity.

I will give branliest, i just need this asap (yall can give me more than one answer aight)

Answers

Answer:

Modern technology allows businesses to create products and conduct their services at a faster rate and for a lower price. Because modern technology helps people to complete tasks at a faster rate, less people are needed, less mistakes occur, and more money can be earned.

Step-by-step explanation:

A doughnut shop wants to determine if there is a difference in donut sales at different times of the day and for different types of doughnuts. They are open in the morning, afternoon, and night, and offer the following flavors: vanilla, chocolate, red velvet, and marbled. There were a total of 48 sales recorded. The shop conducted a two-way ANOVA test and found an F test statistic for Flavor of 14.87. What would be the numerator degree of freedom for the F test statistic to determine if the factor flavor was significant

Answers

Solution :

Let

[tex]$k_1$[/tex] = number of levels for the factors 'flavors' = 4

      (4 levels vanilla, chocolate, red velvet and marbled)

The degree of freedom for the factor 'flavors' = [tex]$k_1$[/tex] - 1

                                                                            = 4 - 1

                                                                            = 3

Now defining the F test statistics for testing the significance of the factors, 'flavors' :

F test statics = [tex]$=\frac{Ms\text{ (factor falvor)}}{Ms \text{ (errors)}}$[/tex]          ,   Ms = mean square

where F = [tex]$F_{k_1-1}$[/tex], error df.

Thus the numerator degrees of the freedom for the F test statistics to determine if the factor flavor was significant is = [tex]$k_1$[/tex] - 1

                                                                            = 4 - 1

                                                                            = 3                                                                              

I need work shown as well

Answers

Answer:

Step-by-step explanation:

the area of the squared is 5 * 5 = 25

the area of the triangle is 1/2*base*height = 1/2*2*5= 5

the area of the circle is  [tex]\pi[/tex][tex]r^{2}[/tex] = [tex]\pi[/tex][tex]2.5^{2}[/tex] = 19.625

now add the pieces up for the total

25+5+19.625 = 49.625 [tex]in^{2}[/tex]

:)

First, find the area of the semi-circle.

A= pi*radius squared

Find your radius. The diameter is 5, half of that is 2.5

Input into the formula

A= pi*2.5^2

  =3.14*6.25

  =19.625 in^2

You can round that to about 19.6 inches.

Find the area of the square

A=s^2

 = 5^2

 = 25 in^2

Find the area of the triangle.

A= b*h/2

 = 2*5/2

 = 10/2

 = 5 in^2

Add it all up.

19.6+ 25 + 5= 49.6

∴ 49.6 in²

Best of luck!

Find the total surface area. Round to the nearest hundredth if necessary.

Answers

Answer:

166

Step-by-step explanation:

multiply the 6 by 2 and then multiply 13 by 10

to get 166

A bowl contains 10 red balls and 10 blue balls.A woman selects balls at random without looking at them. How many balls must she select to be sure of having at least three balls of the same color?

Answers

Answer:

5 balls

Step-by-step explanation:

Sorry if it's wrong.

Wilson Swartz rents a car for 5 days at $51.29 a day and has unlimited miles. Wilson drives 198 miles and spends $29.90 on gasoline. The CDW fee is $15.50 per day. What is the total cost? What is the cost per mile?

Answers

Answer:

Total cost=333.95

Cost per mile=6.622

Step-by-step explanation:

5x51.29=256.45

5x15.50-77.50

256.45+77.50=333.95

The area of parallelogram WXYZ is approximately 45 square units.

Parallelogram W X Y Z is shown. Sides W Z and X Y are congruent. The lengths of sides W X and Z Y are 10 units. Angle W Z Y is 115 degrees.

Trigonometric area formula: Area = One-half a b sine (C)

What is the approximate perimeter of the parallelogram?

5 units
15 units
30 units
40 units

Answers

Answer:

30 units!

Step-by-step explanation:

Edge 2020, I got a 100% on the test

Answer:

30 units

Step-by-step explanation:

muah good luck guys!

Auntie Sammy buys a hand bag. There was a discount
of 20%.
If Auntie Sammy paid $245, what was the original price?

Answers

Answer:

Step-by-step explanation:

I think the original proce would be  $265

1. Subtract the percentage discount from 100

100 - 20= 80

2. Multiply the final price($245) by 100

245 × 100= 24,500

3. Divide the answer in step 2 by the answer in Step 1

24,500 ÷ 80= $306.25

answer is $306.25

How to check to ensure your answer is correct:

1. Multiply the "answer" by the discount price divided by 100. This will give the discount percentage in dollars.

$306.25 × 0.2( which is 20÷100)= $61.25(discount in dollars)

2. Subtract the discount in dollars from the "answer"

$306.25 - $61.25= $245(final price is the same as in the problem so it is correct)

OR

1. Multiply the original price by the number you get from step 1 in your problem divided by 100

$306.25 × 0.8(80 from the very first step divided by 100)= $245(the final price is the same given in the question)

Write the equation for the function g(x), which can be described as a
vertical shift 13 units up from the function f(x) = In x –1

Answers

Answer:

Step-by-step explanation:

When you shift up or down, the function gets added to or subtracted from the expression on the right of the y value.  Put in simpler language, for this question, the equation becomes.

g(x) = f(x) + 13

And the solution is

g(x) = ln(x) - 1 + 13

g(x) = ln(x) + 12

A bag contains 10 blue counting chips and 10 red counting chips. What is the probability that, without looking, Miguel will pick a blue chip first, which he will keep, and on his second draw Miguel will select a red chip?


1/10


11/21


5/38


5/19

Answers

Answer: 5/19

Step-by-step explanation:

(probability of blue chip)/(total chips) x (probability of red chip)/(new total chips)

10/20 x 10/19 = 100/380

simplify: 5/19

NEED HELP WITH THIS QUESTION

Answers

52,987


I believe I subtracted the asset sum by liability.

Find the difference: (6a + 6) - (3x - 2) - (2a + 4)

Answers

Answer:

4 a − 3 x + 4

Step-by-step explanation:

I just simplified everything together to get this answer.

Hope that this helped! :)

Have a great rest of your day/night!

Please thank me on my profile if this answer has helped you!

Resale Value Garland Mills purchased a certain piece of machinery 2 years ago for $500,000. Its present resale value is $420,000. Assuming that the machine's resale value decreases exponentially, what will it be (in dollars) 4 years from now? (Round your answer to the nearest dollar.)

Answers

Answer:

260,000

Step-by-step explanation:

The value decreases by 40,000 per year (500000-42000/2 years) the value will decrease by 240000 in six (4 years plus 2 years already passed) years. 6 x 40,000 =240000

So, the value should be 260,000 (500000-240000)

Or

year 1 500000-40000=460000

year 2 460000-40000=420000

year 3 420000-40000=380000

year 4 380000-40000=340000

year 5 340000-40000=300000

year 6 300000-40000=260000

The machine's resale value Garland Mills purchased in 4 years from now will be; $353,049

What is the future value amount?

We are told that the machines present resale value is $420000. Now formula for future value is;

Future value = present value * exp(cx)

Thus;

$420,000 = $500,000 * exp(2c)

420000/500000 = exp(4c)

2c = In(420000/500000)

c = -0.087

Future value = present value * exp(cx)

Future value = $500,000 * exp(-0.087 * 4)

Future value = $353,049

Therefore, the machine's resale value in 4 years from now will be  $353,049

Read more about future value amount at; https://brainly.com/question/13961729

4) Divide x^4 – 14x^2 + 45 by (x - 3)

Answers

Answer:

Ok 9-8=1 times 2 = 2

Step-by-step explanation:

Answer:

x^3−5x+3x^2−15

Step-by-step explanation:

Common math

Find an equation of the line that bisects the acute angle formed by the graphs of negative 5X plus 7Y +4 equals zero and 7X minus 5Y +6 equals zero

Answers

Answer:

Step-by-step explanation:

x+ y = 0  

and

-2x + 5y + 2 = 0

Step-by-step explanation:

given line

3x+5y+2=0

5x+3y-2=0

solution

when two line bisect each other then line equation of bisector is express as

  1

and here

A1 = 3

B1  = 5

C1 = 2

and

A2 = 5

B2  = 3

C2 = -2

so now put value in equation 1 we get

   

solve it we get

-2x + 5y + 2 = 0   1

and

3x+5y+2 = - ( 5x+3y-2 )

solve it we get

8x + 8y = 0

x + y = 0  2

Answer: D -12x +12y -2 =0

Step-by-step explanation:

Edge 2021

solve (x – 5)^2 = 17

Answers

Answer:

x = 5 ± √17

General Formulas and Concepts:

Pre-Algebra

Order of Operations: BPEMDAS

Brackets Parenthesis Exponents Multiplication Division Addition Subtraction Left to Right

Equality Properties

Multiplication Property of Equality Division Property of Equality Addition Property of Equality Subtraction Property of Equality

Algebra I

Terms/CoefficientsMultiple Roots

Step-by-step explanation:

Step 1: Define

(x - 5)² = 17

Step 2: Solve for x

[Equality Property] Square root both sides:                                                    x - 5 = ±√17[Addition Property of Equality] Add 5 on both sides:                                    x = 5 ± √17

i will mark brainliest please help

A- less than -5

B- less than or equal to -5

C- Greater than -5

D- Greater than or equal to -5

Answers

B would be your best answer

what does the model predict for the number of prizes won when you buy 10 tickets?

a - the model predicts that you will win 6 prizes when you buy 10 tickets.
b - the model predicts that you will win 19 prizes when you but 10 tickets.
c - the model predicts that you will win 4 prizes when you buy 10 tickets.
d - the model predicts that you will win 22 prizes when you buy 10 tickets.​​

Answers

Answer:

the answer is b

Step-by-step explanation:

top right corner

Answer:

the answer is b

Step-by-step explanation:

2.
Lisa is 1.50m tall. Sean is 35cm shorter. How tall is Sean
in metres?

Answers

Answer:

Sean is 1.15m

Step-by-step explanation:

35cm = 0.35m

Lisa is 1.5m tall and Sean is 0.35m shorter

1.5m - 0.35m = 1.15m

Sean is 1.15m

Point A is shown on the the number line below.(The picture I attached)

Another point, B , is to be placed on the number line and will be 2 1/2 unit from point A. What could be the position of point b?

(A) - 1 1/2
(B) -1
(C) 2 1/2
(D) 3 1/2
(D)

Answers

Answer:

-1 is the correct answer

Step-by-step explanation:

Move that many points on the number line

The position of B on number line is at - 1.

What is Number line?

Number line is a horizontal line where numbers are marked at equal intervals one after another form smaller to greater.

Given that;

Point A is shown on the the number line below.

And, Another point, B , is to be placed on the number line and will be 2 1/2 unit from point A.

Now,

Since, The position of Point A = 1 1/2

And, Another point, B , is to be placed on the number line and will be 2 1/2 unit from point A.

So, The point B = 1 1/2 + (-2 1/2)

                        = 3/2 - 5/2

                        = - 2/2

                        = - 1

Thus, The position of point B = - 1

Learn more about the number line visit:

https://brainly.com/question/188220

#SPJ2

Complete the point-slope equation of the line through (-9,6) and (−7,−8)

y−6=

Answers

Answer:

its 9 :)

Step-by-step explanation:

hkjgh

Please help ! Please help! I will heart you !

Answers

Answer:

x = 65

Step-by-step explanation:

x + 115 = 180

x = 65

Answer:

65 degrees

Step-by-step explanation:

180-115=65 degrees

The line that 115 degrees is on is equal to 180.

What is the opposite of - 1/4 ?

Answers

Answer:

1/4

Step-by-step explanation:

If you know the answer your a genius at math^

Answers

Answer: I think its B

Step-by-step explanation: hoped this helped :)

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