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3 years ago

PLZ HELP meeeeeeeeeeeeeeeeeee

Mathematics

2 answers:

arlik [135]3 years ago

5 0

Answer:

Question 1: x=50°

Question 2: x=118°

Step-by-step explanation:

A right angle has a total of 90 degrees

a straight line has a total of 180 degrees

<u>Question 1:</u>

The first problem is an example of a complementary angle. To work out the value of x you would need to Minus the angle of 40 from the total of 90, this gives you 50. This is because question 1 is a right angle and so is 90°, also by subtracting the angle form the total of 90 you are isolating the value of x.

1) Minus 40 from 90.

$90-40=50$ °

<u>Question 2:</u>

The second question is an example of a supplementary angle. To work out the value of x in the second question you would minus the angle of 62 from the total of 180, this gives you 118. This is because question 2 is a straight line and so has a total angle of 180°, also by subtracting the angle from the total we are isolating the value of x.

1) Minus 62 from 180.

$`180-62=118$ °

Inga [223]3 years ago

4 0

for the first problem:

the equation is x+40=90 (degrees) because since there is a little square, that means that angle is 90 degrees. Since it has been split we can use algebra to solve it. x=50 degrees. They are complementary angles because the add up to 90 degrees.

second one: x= 180-62 degrees or x+62=180 degrees. Since this one is a straight line and all straight lines equal 180 degrees, we can use the same algebra logic and put in 62 degrees. x=118 degrees, and the angles are supplementary because they add up to 180 degrees.

hope this helped!

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In a fruit cocktail, for every 30 ml of orange juice you need 20 ml of apple juice and 50 ml of coconut milk. What proportion of

Orlov [11]

30+20+50 = 100 ml total. 20 ml is orange juice.

So, 30/100 reduce by dividing top and bottom by 30 gives

3/10 is the proportion of orange juice in the fruit cocktail.

Hope this helps! :)

7 0

2 years ago

Read 2 more answers

In regional spelling bee, the 8 finalists consist of 3 boys and 5 girls. Find the number of sample point the sample space S for

Minchanka [31]

Answer:

i) There are 40320 possible orders

ii) There are 336 possible orders for the first 3 positions.

Step-by-step explanation:

Given: The number of finalists = 8

The number of boys = 3

The number of girls = 5

To find the number of sample point the sample space S for the number of possible orders, we need to find factorial of 8!

The number of possible orders = 8!

= 1 x 2 x 3 x 4 x 5 x 6 x 7 x 8

= 40320

ii) From all 8 finalist, we need to choose first 3 position. Here the order is important. So we use permutation.

nPr = $\frac{n!}{(n - r)!}$

Here n = 8 and r = 3

Plug in n =8 and r = 3 in the above formula, we get

8P3 = $\frac{8!}{(8 - 3)!}$

= $\frac{8!}{5!} \\= \frac{1.2.3.4.5.6.7.8}{1.2.3.4.5}$

= 6.7.8

= 336

So there are 336 possible orders for the first 3 positions.

3 0

3 years ago

URGENT I NEED ANSWER WITH WORK

sergeinik [125]

Answer: 250 students.
Step-by-step explanation:
Let x students in 6th grade either purchased their lunch or brought their lunch from home on Monday.
According to the question,
24% of the students purchased their lunch.
⇒ (100-24)% of the student brought their lunch from home.
⇒ 76 % of the student brought their lunch from home.
But, Again according to the question,
190 students brought their lunch from home.
⇒ 76 % of x = 190

⇒ x = 250
Therefore, there are total 25 students in the 6th grade.

6 0

3 years ago

I need help nowww!! 16 points

Setler [38]

Answer:

A: x = 0

B: x = All real numbers

Step-by-step explanation:

Any number to the power of (0) equals one. This applies true for the given situation; one is given an expression which is as follows;

$(6^2)^x=1$