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Radda [10]
3 years ago
15

Can someone work these out for me it’s just notes and I was absent when the teacher explained it

Mathematics
1 answer:
tresset_1 [31]3 years ago
3 0
I answered this on another user but here it is again:
I will give you how to solve 2 of them:
1. The first one is a line, so you know that the total angle of that line is 180 degrees. So: (x-16)+(4x+1)=1805x-15=1805x=195x=39so:(x-16)=39-16=23(4x+1)=4*39+1=157Check: 23+157=180! Correct!
Question 3 is a right angle so it has to add up to 90 degrees(x+15)+50=90x+65=90x=25sox+15=25+15=40Check! 40+50=90...correct again!

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The place value of 4 in 149 is???​
Burka [1]

Answer:

Ten

Step-by-step explanation:

The 4 is the tens place value in the number

3 0
3 years ago
Read 2 more answers
What is the maximum value?
Pavel [41]

Answer:

the maximum value is 3

Step-by-step explanation:

The maximum value of the function y = -2+5sin(pi/12(x-2)) is determined by taking the first derivative of the function. The first derivative is equal ( 5 pi/ 12 )* sin ((pi/12) (x-2)) = 0. x is equal to 4472 through the calculator. Substituting to the original equation, the maximum value is 3.

5 0
4 years ago
An art teacher has 28 students in her first-period class and 24 students in her second-period class. If almost 30% of the studen
Goshia [24]
Answer:
C. 8


Explanation:
One way to solve this is to find 30% of each class, 28 and 24.

30% of 28:
28 • 0.30 = 8.4
30% of 24:
24 • 0.30 = 7.2

You can then find the average of these two numbers.

8.4 + 7.2 = 15.6
15.6 ➗ 2 = 7.8
7.8 rounds up to 8

Another way to solve is to first find the average number of people in each class.

28 + 24 = 52
52 ➗ 2 = 26

You can then find 30% of this number.

26 • 0.30 = 7.8
7.8 rounds up to 8

3 0
3 years ago
How many anagrams can be created from the word 'masslessness' if the new words do not need to be meaningful?
Lunna [17]

Answer: 332640 anagrams

Step-by-step explanation:

Given the word:

'masslessness'

Total number of letters= 12

Number of S = 6

E =2

The rest are one each.

The number of possible arrangements can be written as;

N = 12!/(6!2!)

N = 332640

4 0
3 years ago
If sin Ѳ = cos 40, find the value Ѳ
Jet001 [13]

Answer:

Θ = 50°

Step-by-step explanation:

Using the cofunction identity

cosx = sin(90 - x)

Given

cos40° = sin(90 - 40)° = sin50° ⇒ Θ = 50°

7 0
4 years ago
Read 2 more answers
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