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Sonja [21]
4 years ago
11

Evaluate x^2/y + x^2/z, if x=10, y=-5, and z=-2

Mathematics
2 answers:
jeyben [28]4 years ago
6 0
Hi Jasmine

x²/y + x²/z
if x = 10, y=-5 , z = -2
Evaluate x, y,z
10^2/-5 + 10^2/-2
10²/-5 + 10²/-2
- 70

I hope that's help !
wlad13 [49]4 years ago
3 0

Answer:

The answer is -70.

Step-by-step explanation:

In order to determine the answer, we have to know about "replacing variables". In any expression which contains variables, we can replace them by values to get different results.

So, in this case, we have the variables "x", "y" and "z", and also we have the values to replace every variable.

Replacing those values:

\frac{x^2}{y}+\frac{x^2}{z}\\ \\x=10\\y=-5\\z=-2\\\\\frac{(10)^2}{(-5)}+\frac{(10)^2}{(-2)}\\ \frac{100}{(-5)}+\frac{100}{(-2)}\\ -20-50\\-70

Finally, the value of the expression is -70.

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4. Which graph shows a non-proportional linear<br> relationship between x and y?<br> A.<br> В.
Ghella [55]

Answer:

I think ( b) is non proportional linear

4 0
3 years ago
Pizza Paradise offers 4 types of crust, 10 toppings, and 8 kinds of cheese for the mega calzone. How many different mega calzone
Bumek [7]

Answer:

26880 ways

<em></em>

Step-by-step explanation:

Given

Crust = 4

Toppings = 10

Cheese = 8

Required

Determine the number of ways 3 toppings and 3 cheese can be selected

The number of crusts to be selected was not stated. So, I'll assume 1 crust to be selected from 4.

This can be done in ^4C_1 ways

For the toppings:

3 can be selected from 10 in ^{10}C_3 ways

For the cheeses:

3 can be selected from 8 in ^{8}C_3 ways

Total number of selection is:

Total = ^4C_1 * ^{10}C_3 * ^{8}C_3

Apply combination formula:

Total = \frac{4!}{(4-1)!1!} * \frac{10!}{(10-3)!3!} * \frac{8!}{(8-3)!3!}

Total = \frac{4!}{3!1!} * \frac{10!}{7!3!} * \frac{8!}{5!3!}

Total = \frac{4*3!}{3!*1} * \frac{10*9*8*7!}{7!*3*2*1} * \frac{8*7*6*5!}{5!*3*2*1}

Total = \frac{4}{1} * \frac{10*9*8}{3*2*1} * \frac{8*7*6}{3*2*1}

Total = 4 * \frac{720}{6} * \frac{336}{6}

Total = 4 * 120* 56

Total = 26880

<em>Hence, there are 26880 ways</em>

5 0
4 years ago
Plz help me with this
Georgia [21]

Answer:

im so sorry bro

Step-by-step explanation:

6 0
3 years ago
Read 2 more answers
Is either x=9 or x=15 a solution to x-3=12?
kvasek [131]

Answer:

It's 15

c. x=15 is a solution but x=9 is not

Step-by-step explanation:

15-3=12

9-3=6

7 0
3 years ago
PLEASE HELP ME GET ANSWER
Diano4ka-milaya [45]
Solution: the second number is 90

Step by step solution:
A=A
B=5A
C=5A-13

A+5A+5A-13=185
11A-13=185
11A=198
A=18

A=18
B=90
C=77

Hope that helps :)
8 0
3 years ago
Read 2 more answers
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