Mathematics High School

I need help with these questions. Please show workings.​

I Need Help With These Questions. Please Show Workings.

Answers

Answer 1

Answer:

see explanation

Step-by-step explanation:

∠ AOB = 360° - 264° = 96°

The altitude OM bisects ∠ AOB and the base AB

(a)

∠ MOB = 0.5 × 96° = 48°

Using the cosine ratio in right triangle MOB

cos48° = [tex]\frac{adjacent}{hypotenuse}[/tex] = [tex]\frac{OM}{OB}[/tex] = [tex]\frac{18}{r}[/tex] ( OB is the radius r of the circle )

Multiply both sides by r

r × cos48° = 18 ( divide both sides by cos48° )

r = [tex]\frac{18}{cos48}[/tex] ≈ 27 cm ( to the nearest cm )

(b)

Using the tangent ratio in the right triangle MOB

tan48° = [tex]\frac{opposite}{adjacent}[/tex] = [tex]\frac{MB}{OM}[/tex] = [tex]\frac{MB}{18}[/tex] ( multiply both sides by 18 )

18 × tan48° = MB then

AB = 2 × MB = 2 × 18 × tan48° = 36 × tan48° ≈ 40 cm ( to nearest cm )

Related Questions

Please help will give Brain

Answers

AA





Because you know the two angles

Answer:

by brain... do you mean top at the red light?

Step-by-step explanation: she gave me top at the red light

6)
If h= n + 4, and if n = 7, what is h?
A)
3
B)
1
D)
12
What is h

Answers

Answer:

11

Step-by-step explanation:

If n=7, you would substitute n in the equation with 7.

h=7+4

h=11

Answer:

h=11

Step-by-step explanation:

h = n + 4

but n = 7

h = 7 + 4

h=11

Independent Practice


Determine whether the relation is a function. Explain why or why not.


{(6, –7), (5, –8), (1, 4), (5, 5)}


A.
Yes; the domain value 5 corresponds to two range values, –8 and 5.


B.
No; the domain value 5 corresponds to two range values, –8 and 5.


C.
Yes; the range values are all different.


D.
No: 5 is both in the domain and in the range.

Answers

The answer you’re looking for is a yes the domain value five corresponds to two range values -8 and five

given m||n fine the value of x

Answers

Answer:

153 im pretty sure

Step-by-step explanation:

use alternative interior angle rules which states that alternative interior angles are congruent (equal)

The answer is X=207°

Jenna drank 2 3 liter of water Monday before going jogging. She drank 3 7 liter of water after her jog. How much water did Jenna drink altogether? Write your answer as a mixed number. Plzz i give brainly

Answers

Answer:

Step-by-step explanation:

57

Answer:

27 liter

Step-by-step explanation:

2 3 liter = 3+3= 6

3 7 liter = 7+7+7= 21

21+6=27

Bethany makes 50 hotdogs to divide equally between 6 people. How many hotdogs does each person get?

Answers

50/6= 8.3. I think it would be 8 because u cant share 0.3333 of a hotdog

What is the pattern?

Answers

Answer\Pattern for the right side will continue by 2 and the pattern on the other left side the pattern will continue by -2.

Step-by-step explanation:

On the right side each time it is an addition of two
On the left side it is a -2

Which sentence is true?
All whole numbers are also natural numbers.
b All integers are also rational numbers.
All rational numbers are also integers.
d. All integers are also whole numbers.

Answers

Answer:

Natural numbers are all numbers 1, 2, 3, 4… They are the numbers you usually count and they will continue on into infinity.

Whole numbers are all natural numbers including 0 e.g. 0, 1, 2, 3, 4…

Integers include all whole numbers and their negative counterpart e.g. …-4, -3, -2, -1, 0,1, 2, 3, 4,…

All integers belong to the rational numbers. A rational number is a number

ab,b≠0

Where a and b are both integers.

Example

The number 4 is an integer as well as a rational number. As it can be written without a decimal component it belongs to the integers. It is a rational number because it can be written as:

41

or

82

or even

−8−2

Whereas

15=0.2

is a rational number but not an integer.

A rational number written in a decimal form can either be terminating as in:

15=0.2

Or repeating as in

56=0.83333...

All rational numbers belong to the real numbers.

If you look at a numeral line

picture05

You notice that all integers, as well as all rational numbers, are at a specific distance from 0. This distance between a number x and 0 is called a number's absolute value. It is shown with the symbol

|x|

If two numbers are at the same distance from 0 as in the case of 10 and -10 they are called opposites. Opposites have the same absolute value since they are both at the same distance from 0.

|10|=10=|−10|

Step-by-step explanation:

Please help me figure these out! Thanks!

Answers

For number 18 is c hope it helps

True or False: A function must have a different output for each input. A True B False ​

Answers

Answer:

true

Step-by-step explanation:



The sum of two numbers is 27. One number is 2 times as large as the other. What are the numbers?

Answers

Answer:

Larger number: 18

Smaller number: 9

Step-by-step explanation:

Answer:

9 and 18

Step-by-step explanation:

9 x 2 =18

9 + 18 = 27

The bank charges 4 dollars a day for accounts under $100. Lisa's account had a balance of $15. What would the y-intercept be?

Answers

Answer:

her y intercept would be $15.

What is the radical form of the expression? 2 4/5 Enter your answer in the box.

Answers

Answer:

Step-by-step explanation:

Lisa is making her famous chocolate chip brownies. The recipe calls for 2 cups of chocolate chips, but Lisa can only find her LaTeX: \frac{1}{4}1 4 measuring cup. How many LaTeX: \frac{1}{4}1 4 cups will she need to get the 2 cups needed for her recipe?

Answers

Answer:

I think the answer is 8

Step-by-step explanation:

Ellen drove 277.2 miles. For each gallon of gas, the car can travel 21 miles. How many gallons of gas did Ellen use?

Answers

Answer:

the answer is 13.2

Step-by-step explanation:

Answer:

13.2

Step-by-step explanation:

277.2÷21=13.2 gallons

The length of the highway is 500 miles. If 1 inch represents 100 miles, what is
the length of the highway on the map?

Answers

Answer:

Its 5 inches

Step-by-step explanation:

This is because 1 inch is 100 miles and there are 500 miles so 1 inch times 5 is 5

what are all the composite numbers from 1 to 100

Answers

Answer:

4, 6, 8, 9, 10, 12, 14, 15, 16, 18, 20, 21, 22, 24, 25, 26, 27, 28, 30, 32, 33, 34, 35, 36, 38, 39, 40, 42, 44, 45, 46, 48, 49, 50, 51, 52, 54, 55, 56, 57, 58, 60, 62, 63, 64, 65, 66, 68, 69, 70, 72, 74, 75, 76, 77, 78, 80, 81,82, 84, 85, 86, 87, 88, 90, 91, 92, 93, 94, 95, 96, 98, 99, 100.

Step-by-step explanation:

its pretty simple...

What is the distance between (8,-3) and (4,- 7)?

Answers

Answer:

5.66 units

Step-by-step explanation:

base: 8-4 = 4

rise: -3-(-)7 = 4

4^2+4^2 = d^2

d^2 = 32

d=5.66 units

Find the domain and range of f(x)=4*(1/2)^x

Answers

domain is the set of x-values and range is the set of y-values.


(3.00)*(5.3^2+10.6^2)=?

Answers

Answer:

421.35

Step-by-step explanation:

It usually takes you 1 1/4 hours to get home. One day, traffic was slowed by bad weather and it took you 2 1/2 hours to get home. How much longer did it take you to get home with bad weather?

Answers

Answer:

1 1/4 more hours

Step-by-step explanation:

To find this, we must subtract 2 1/2, the time it takes you to get home with bad weather by 1 1/4, the amount it usually takes you to get home. We can make 2 1/2 into 2 2/4, and now we can subtract and get 1 1/4.

What is 13 divide 5 . And what is 2 divided 3

Answers

Decimal form:                                                         Fraction form                                                                                      

13/5 is 2.6                                                                     2 3/5.

2/3 is 0.666666667                                         I can' figure out for this, sorry!                      

Hope this helps!!

13 divide by 5 is 2.6 and 2 divided by 3 is 0.66666666666 or 0.6

Finding trigonometric ratios:

( ONLY QUESTIONS 10, 12 and 14)

Answers

Step-by-step explanation:

Sorry that they're sideways, it's the only way brainy would let me send them!!

A U.S. penny has a mass of 2.5 grams. A U.S. quarter has a mass of 5.67 grams. What is the total mass of the two coins (pls help lol)

Answers

Answer:

8.17 grams

Step-by-step explanation:

To find the total mass of the two coins add the masses together.

[tex]5.67+2.5=8.17[/tex]

Can you please help me

Answers

Answer:

x=14

Step-by-step explanation:

5x+3x+30 +2x+10 = 180 (angles on straight line add to 180)

10x+40 =180

10x=140

x=14

PLS 100 points...?
10. Mary wants to do a cheesecake. She needs 4 4 12 cups of sweet cream. She knows that 1
cup = 8 ounces How many ounces does she need?

Answers

She needs 4 1/2 cups of sweet cream.

That’s the same as 4.5 cups.

If 1 cup = 8 ounces, you need to find 4.5 cups.

Just multiply 4.5 by 8.

The answer is 36 ounces.

3 women and 2 men are on a tv game show. What are the odds that a woman will win?

Answers

I don’t know what is - this is-

Answer:

3/5 or 60%

Step-by-step explanation:

What is the interest of an investment of $2,000 made at 6% simple interest per year for a time period of 9 mo.?

Answers

Answer:The answer would be $1080.

Sandy's dad just finished working and was paid $8000 for his work. Her dad gave her mom 5/8 of his salary to pay for household expenses. Her mom gave her brother 1/15 of the amount she received as allowances for her brother. Her brother gave Sandy 2/3 of his allowances because he owed her money. How much money did Sandy get from her brother?

a) Write an equation for this scenario

b) Solve the scenario and find out how much money Sandy got from her brother

Answers

Answer:

Sandy got (approximately) $222.22 from her brother.

Step-by-step explanation:

5/8 (8000) = 5000

1/15 (5000) = 333.33

2/3(333.33) = 222.22

Nevan's gross pay was $45,150 last year. The federal income tax withholding from his pay was 16% of his gross
pay. Nevan determined the federal income tax he owes is $6,150. Which of the following is true?
Nevan owes an additional $984 in federal tax.
• Nevan owes an additional $1,074 in federal tax.
Nevan will receive a refund of $984.
Nevan will receive a refund of $1,074.

Answers

Answer: Nevan will receive a refund of $1,074.

Step-by-step explanation:

I don't remember how I did it but I looked it up on Quizlet.

Nevan will receive a refund of $1,074.

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