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3 years ago

Please show all work and not just the answers. Please help ASAP!!!!!

Mathematics

1 answer:

BigorU [14]3 years ago

8 0

9514 1404 393

Answer:

a) x = 14

b) NP = 2 2/9; NL = 2 7/9

Step-by-step explanation:

a) The similarity statement tells you that angle P and angle L have the same measure:

angle L = angle P

3x +18 = 60

x + 6 = 20 . . . . . divide by 3

x = 14 . . . . . . . . . subtract 6

b) The proportional segments are ...

PN/NQ = LN/NM

y/3.2 = (5 -y)/4

5y = 4(5 -y) . . . . . multiply by 16

9y = 20 . . . . . . . . add 4y

y = 20/9 = NP

5 -y = (45 -20)/9 = 25/9 = NL

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Can someone help me on this?

Setler79 [48]

Answer:

⅜ or ⅗

Step-by-step explanation:

I say ⅜ because of how many variables you can take into account 3 different colors, and a 2 sided coin, lastly 3 different numbers. So in total that is 8 possible variables and the 3 being blue, heads, and landing on 1.

Now I say ⅗ because of this perspective on the variables. You have the 3 colors, and your two sided coin but thing here is that the 1 is basically another color so the question is technically asking for the probability of spinning blue, landing on heads and landing on red in a sense.

Go with your gut though between those 2

7 0

4 years ago

Can you use PEMDAS without parenthesis, exponents, division, or subtraction? Example: 5+1x10=?

Sindrei [870]

If there are that many things missing then go left to right; 5+1 then multiply the sum by ten

5+1=6
6x10=60

I hope I was helpful

7 0

3 years ago

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Phillip saves $8each month. How many months will it take him to save at least $60.

Studentka2010 [4]

$8 each month
How many months will it take him to save at least $60?

60 ÷ 8 = 7.5

It will take Phillip 7.5 months to save up at least $60!

5 0

4 years ago

Please help me with this!!!

Strike441 [17]

Answer:

See explanation below

Step-by-step explanation:

Let's use Q10 as an example and you will work on Q11-12 as they are the same.

I believe the middle column (5x-4) wants you to substitute the given x, so:

Q10.1: 5(-2)-4

Q10.2: 5(4)-4

Q10.3: 5(0)-4

Q10.4: 5(1)-4

The right most column (f(x)) should be asking you the answers from your middle column, so:

Q10.1: -14

Q10.2: 16

Q10.3: -4

Q10.4: 1

As for the domain and range, let's define these two names in case you haven't learnt them:

Domain: What reasonable x values can be inputted into the function.

Range: What reasonable results will be shown after calculating.

In these case, you can input any real numbers into x as you like into the function, the results will always be other real numbers.

Hence, for Q10-12, D and R should be "All real numbers"

Just some extra info, Let the function f(x) be $\frac{1}{x+1}$ . Since the denominator cannot be 0 in a fraction, we say that the domain of x is "All real numbers except -1" as $-1+1 = 0$ and $\frac{1}{0}$ is undefined.

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3 years ago

4. In the diagram, ABCD is a straight line. Calculate the values of x and y.

kykrilka [37]

Answer:

x is 108° and y is 144°

Step-by-step explanation:

for x:

$x + 36 \degree + 36 \degree = 180 \degree \\ \{isoceles \: triangle \: angle \: sum \} \\ x + 72 \degree = 180 \degree \\ x = 180 \degree - 72 \degree \\ x = 108 \degree$

for y:

$y + 36 \degree = 180 \degree \\ \{straight \: line \: angles \} \\ y = 180\degree - 36\degree \\ y = 144\degree$

8 0

3 years ago

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