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Sloan [31]
2 years ago
6

Solve the system of equations.

Mathematics
1 answer:
Helga [31]2 years ago
7 0
The answer is x=1 y=-1 and z=1. If you plug in the variables you get
4-3+5 and that equals 6. So that’s the answer
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Kylie explained that will result in a difference of squares because . Which statement best describes Kylie’s explanation?
satela [25.4K]

Answer: that not a real question it cant be answered has to be missing something

Step-by-step explanation:)

8 0
3 years ago
Please help me grades are do today
11111nata11111 [884]

Answer:

28

Step-by-step explanation:

sin=\frac{opp}{hyp}

cos = \frac{adj}{hyp}

cos^{-1}\left(\frac{45}{51}\right)

which is 28.07 degree

sin\left(28.07\right)=\frac{x}{51}

x= 23.99

23.99+4=h=28

3 0
2 years ago
Evaluate: x(y – z) for x = 3, y = 9, and z = 2<br> O 33<br> O 45<br> O-21<br> O 21
ad-work [718]

Answer:

21

Step-by-step explanation:

Hi there!

We are given the expression x(y-z), and we want to evaluate it if x=3, y=9, and z=2

As we're given the values of the variables, we can substitute those values into the expression to find out what the value of the expression is.

So substitute 3 as x, 9 as y, and 2 as z in the expression above

x(y-z)

3(9-2)

Now we must follow the order of operations; start by subtracting 2 from 9 (do the stuff inside the parentheses first)

3(7)

Now multiply 3 and 7 together

<u>21</u>

Hope this helps!

3 0
3 years ago
Ria can paint a room in 4 hours. Destiny can paint the same room in 6 hours. How long would it take Ria and Destiny to paint the
Lerok [7]

Time taken by Ria to paint a room = 4 hours

Time taken by Destiny to paint a room = 6 hours

If they work together, they complete 1 job. So,

\frac{1x}{4}+\frac{1x}{6}=1

The LCD of 4 and 6 is 12

\frac{3x+2x}{12}=1

\frac{5x}{12}=1

5x=12

x=\frac{12}{5}

Hence, both of them can paint the room in \frac{12}{5} hours or 2.4 hours.


4 0
3 years ago
Read 2 more answers
The perimeter of a triangle is 140 cm the length of the second side is twice the length of the first side the length of the thir
kykrilka [37]

Perimeter = 140

Side 1 = x

Side 2 = 2x

Side 3 = 3x - 10

x + 2x + 3x - 10 = 140

6x - 10 = 140

6x = 150

x = 25

Side 1 = 25 cm

Side 2 = 50 cm

Side 3 = 65 cm

Hope this helps!! :)

6 0
3 years ago
Read 2 more answers
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