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Reika [66]
2 years ago
12

Brainly plz help only three questions and don't answer for point kinda rude

Mathematics
1 answer:
Ivan2 years ago
7 0

Answer:

Step-by-step explanation:

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PLS HELP ASAP FIRST CORRECT ANSWER GETS BRAINLIEST​
Anna11 [10]
Using Pythagorean, a^2 + b^2 = c^2
16 +x^2 = 36.69
Then subtract the 16 from 36.69, which is 23.69
And finally take the square root of that, giving you 4.87
6 0
2 years ago
Helppp me Please!!!!! :)
irina [24]

Answer:

x = 30 \\ y = 10

Step-by-step explanation:

8x + 6y = 300 \\ x + y = 40 \\ 6x + 6y = 240 \\ 2x = 60   \\ =  > x = 30 \\ y = 10

7 0
2 years ago
Which of the following graphs could represent a quartic function?
Scilla [17]

Answer:

Graph A

Basically a graph of a function will have no turns if linear, 1 turn if quadratic, 2 turns if cubic, and 3 terms if quartic.

Graph A has a small turn on its right side.

Step-by-step explanation:

5 0
3 years ago
3. The price of a pair of shoes is $64.00 plus 9% sales tax. What is the sales tax on this pair of shoes in dollars and cents? A
Luden [163]

Step-by-step explanation:

To figure out this answer, you need to figure out how much 9% is in $64.00

  ?              9

-------   =   --------  

 64           100

Now to solve this you have to multiply diagonally and divide the neighbor

(let me explain)

basically in this case, you would multiply 64 and 9, then divide by 100

64 * 9 = 576

576 / 100 = <em><u>$5.76</u></em>

<em><u /></em>

In short: your answer is<em><u> 'A' $5.76</u></em>

<em><u /></em>

Hope this helps <3

8 0
3 years ago
A normal population has mean =μ7 and standard deviation =σ5. (a) What proportion of the population is less than 18?
marshall27 [118]

Answer:

P(x< 18) = 0.986

Step-by-step explanation:

Step 1: find the z-score using the formula, z = (x - µ)/σ

Where,

x = randomly chosen values = 18

µ = mean = 7

σ = standard deviation = 5

Proportion of the population that is less than 18 = P(x < 18)

Plug in the values into z = (x - µ)/σ, to get z-score.

z = (18 - 7)/5

z = 11/5 = 2.2

Step 2: Find P(x< 18) = P (z<2.2) using z-table.

The probability that corresponds with z-score calculated is 0.986.

Therefore,

P(x< 18) = 0.986

4 0
3 years ago
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