Mathematics High School

find the value of a and b

Answers

Answer 1

Answer:

Step-by-step explanation:

In triangle ADC,

b+50+60=180(sum of angles of triangle equals 180)

or,b=180-110

▪b=70

also,

In triangle ABD,

angleA = 30+50=80

now,

a+80+60=180(sum of angles of traingle equals 180)

or,a=180-140

▪a=40'

Ans.

Related Questions

Please I need help I’m sorry for bothering

Answers

Answer:

Step-by-step explanation:

Answer:

A

Explanation:

Since you are adding the numbers in the parenthesis, it doesn’t matter which order they go in, the answer won’t change.

Identify the volume of the composite figure. Round to the nearest tenth.

Answers

Answer:

474.5 ft ³

Step-by-step explanation:

1) Find the volume of the cube

[tex]A=l^3[/tex] where l is the side length

Plug in 9 ft as l

[tex]A=9^3\\A=729[/tex]

Therefore, the volume of the cube is 729 ft³.

2) Find the volume of the cylinder

[tex]A=\pi r^2h[/tex] where r is the radius of the base and h is the height of the cylinder

Plug in 3 ft as the radius and 9 as the height

[tex]A=\pi (3)^2(9)\\A=\pi (9)(9)\\A=81\pi \\A=254.5[/tex]

Therefore, the volume of the cylinder is approximately 254.5 ft ³.

3) Subtract the volume of the cylinder from the volume of the cube

729 ft³ - 254.5 ft ³

= 474.5 ft ³

Therefore, the volume of the figure is 474.5 ft ³.

I hope this helps!

Answer:

I think It's A

Step-by-step explanation:

PLEASE HELP FAST!!!
Which equation has an undefined slope?

a) y = 6x + 0

b) x = 4

c) y = -4

d) y = -2/3x - 6

Answers

Answer:

Hello,

I just think that it is A

Why you may ask?

Because it has a Zero and that is an undefined number than

Step-by-step explanation:

Please I want brainest

What is 1sq ft x11ft

Answers

Answer:

The answer will be 311.485313 liters

Step-by-step explanation:

Because I searched it up

Between which two numbers is √8 located on a number line?

Answers

Answer:

√8 is between 2 and 3.

Step-by-step explanation:

♡ im sorry if its wrong ♡

Please please asap!!

Answers

Answer:I don't know this one

Step-by-step explanation:

You estimate that there are 32 candies in a bag.
and find there are actually 29 candies. Find the percent error. Round to the
nearest tenth of a percent if necessary.
a. 0.09%
C. 9.4%
b. 0.10%
d. 10.3%

Answers

Answer:

D. 10.3%

Step-by-step explanation:

Find the percent error using the formula:

percent error = | (observed - expected) / expected | x 100

32 is the observed value, and 29 is the expected value

Plug in these values to solve for the percent error:

percent error = | (observed - expected) / expected | x 100

percent error = | (32 - 29) / 29 | x 100

percent error = 10.3%

So, the correct answer is D. 10.3%

I really need help. I've checked everywhere and it says cannot be factored. I will give brainliest to whoever can help me and give the correct answer. PLEASE HURRY!

Answers

Answer:

B) -5, 5, -7, 7

Step-by-step explanation:

3x² - bx + 2

factor:

(3x - 2 )(x - 1) = 3x² - (5)x + 2 so 5 does work

(3x - 1 )(x - 2) = 3x² - (7)x + 2 so 7 does work

(3x + 2 )(x + 1) = 3x² + 5x +2 = 3x² - (-5)x + 2 so -5 does work

(3x + 1 )(x + 2) = 3x² + 7x + 2 = 3x² - (-7)x + 2 so -7 does work

what is 49cm^2 in mm^2

Answers

Answer:

4900mm^2 or 24010000mm

Step-by-step explanation:

At a restaurant 12 ounces of ground beef is used to make 4 hamburger patties. The number of hamburger patties
made is directly proportional to the number of ounces of ground beef used.
What is the constant of proportionality that relates the number of hamburger patties made to the number of ounces of
ground beef used?
i need it asap!

Answers

Answer:

Its 3

Step-by-step explanation:

Answer:

Step-by-step explanation:

I think its 1/3 because you need 3 Oz of ground beef to make one pattie

please help me with this please

Answers

Answer:

THE FIRST ANSWER IS 29+29+29+29

THE SECOND ANSWER IS 58

Step-by-step explanation:

How i got that answer is from it says square so i know that a square has 4 sides.

Awnswer this Pls! 70 points

Answers

Answer:

the answer is true

Step-by-step explanation:

Answer:

false i hope this helps and please mark as brainly

If f(x) = 3x - 1 and g(x) = x + 2, find (f+g)(x).

Answers

f+g(x) = f(x) + g(x) = 3x-1 + x+2 = 4x+1

11 sheets of A4 size paper weights 341 grams. Find the number of such sheets in a weight for 2 kg 666 grams of such paper?

Answers

86 sheets

One A4 paper weighs 31 grams, since 341/11=31

There are 2666 grams in 2kg and 666grams

2666/31=86

if i made 280 a month how much would i have in a year

Answers

Answer:

3360 dollars

Step-by-step explanation:

280 x 12 = 3360

Answer:

It esay answer is 3360

Step-by-step explanation:

Thereare 12 months in a year. You made 280 amonth.So multiple 280 and 12.

Someone plz help me I will give brainliest

Answers

Answer: 35
Largest number - smallest number so
38-3= 35

how do you solve for u?

Answers

Answer:

u=9.8

Step-by-step explanation:

the minus sign on u and the minus sign on 9.8 cancel out so you get u=9.8.

At a sale, coats were sold for $17 each. If the coats originally cost $20 each, what percentage of its original price was a coat sold for?

Answers

15% off
$20 is 100%
$10 is 50%
$1 is 5%

Use that to work them out and voila

Tu bicicleta necesita ser reparada. Un mecánico cobra $ 22 por cada hora de trabajo y las piezas nuevas cuestan $ 23. El costo total para reparar la bicicleta es de $ 111. ¿Cuántas horas le tomó al mecánico arreglar la bicicleta?

Answers

Answer:

the number of hours that would be taken is 4

Step-by-step explanation:

The computation of the number of hours would be taken is shown below:

Let us assume the number of hours be x

Now according to the question

The equation is

$22x + $23 = $111

$22x = $111 - $23

x = 4 hours

Hence, the number of hours that would be taken is 4

In 4 hours Jessie can make 6 necklaces. How many necklaces can she make in 10 hours?

Answers

Answer:

Step-by-step explanation:

in 8 hrs she can make 12 then cn only make one more so

the values of w is inversely proportional to m .if w=8 then m=25; what is m when w=20?

Answers

Answer:

m = 10

Step-by-step explanation:

Given w is inversely proportional to m then the equation relating them is

w = [tex]\frac{k}{m}[/tex] ← k is the constant of variation

To find k use the condition w = 8, m = 25 , then

8 = [tex]\frac{k}{25}[/tex] ( multiply both sides by 25 )

200 = k

w = [tex]\frac{200}{m}[/tex] ← equation of variation

When w = 20 , then

20 = [tex]\frac{200}{m}[/tex] ( multiply both sides by m )

20m = 200 ( divide both sides by 20 )

m = 10

6. Which is a not a true statement about the figures shown below?
this is do soon thx

Answers

A or D they’re the same

Answer:

a and d

Step-by-step explanation:both the same answers hope this helps

how many songs can you play on sound cloud before a ad comes on

Answers

3? i don’t know or maybe 10

WILL GIVE BRAIN FIND THE UNKNOWNS TYSM!!!!

Answers

Answer:

if i'm correct you either divide the two numbers you have to get the answer or you multiply them to get the answer

Step-by-step explanation:

108 divided by 92

108 x 92

Help me please thanks so much

Answers

sub in the numbers
6/3
=2/1
which is basically 2, the first option

Answer:

Step-by-step explanation:

x/y equals to 6/3. Simplify it- 6(numerator) can go into 3(denominator) twice, so therefore it is 2.

Or you can divided 6(numerator) by 3(denominator), and get 2.

Hope this helped, guys!

Which expression is equivalent to three eighths? (2 points)

a
8 ÷ 3
b
3 ÷ 8
c
8 − 3
d
3 − 8

Answers

Answer:

Step-by-step explanation:

Answer:

its A/ 8 divided by 3.

How can translations help you
sketch the graph of f(x) = x2 + 8x + 16?

Answers

Answer:

THE REAL ANSWER IS IN THE SCREEN SHOT HIS IS NO VIRUS LINK

Step-by-step explanation:

pls mark me brainliest

pls help i will give brainliest

Answers

It is B because yiu solve

Identify the slope of the graph below...
is the slope
positive
negative
undefined or
just zero

Answers

Answer:

Undefined

Step-by-step explanation:

Vertical lines are undefined.

Can you please help me!!

Answers

Answer:

the slope is 2x

Step-by-step explanation:

It goes up 12 units and right 6 units, so divide 12 by 6

next in the table put 6 and 12, then 12 and 24

finally, the equation is y = 2x

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