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Nuetrik [128]
3 years ago
14

Solve the system by substitution. x= -5y - 6 5x – 3y = -2 What’s is the solution?

Mathematics
1 answer:
Alecsey [184]3 years ago
7 0
(-1,-1)

I recommend photomath, it helps with all equations!
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Solve. −35x+15>720 Drag and drop a number or symbol into each box to show the solution.
Anton [14]

Answer:

x< -141/7 (ONLY 141 IS NEGATIVE, NOT THE FRACTION IN GENERAL.)

     

 

Step-by-step explanation:

Let's solve your inequality step-by-step.

−35x+15>720

Step 1: Subtract 15 from both sides.

−35x+15−15>720−15

−35x>705

Step 2: Divide both sides to get the answer of x< -141/7

5 0
3 years ago
PLEASE HELP ME!!! what are the roots of x in -10x^2+12x-9=0
Zina [86]

Answer:

Option B.

Step-by-step explanation:

We have the following polynomial: -10x^2+12x-9=0

Multiplying by -1:

10x^2-12x+9=0

Using the quadratic formula, we find that the roots are:

0.6 ± 3√(6)/10i

Therefore, the correct answer is B.

3 0
3 years ago
PQR is a right angled triangle with angle R 90 According to Pythagoras rule​
vazorg [7]

Answer:

The Pythagorean Theorem states that a^2+b^2=c^2

Step-by-step explanation:

This formula applies to the side lengths and means that the length of leg "a" squared, plus the length of leg "b" squared, will equal the length of hypotenuse "c" squared. Please state a more specific question so I can go into more detail if you need it :)

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2 years ago
Because a square is a rectangle,it must have
yaroslaw [1]

Answer:

4 right angles & 2 sets of parallel lines

Step-by-step explanation:

i am big brain

5 0
3 years ago
1. A rectangular kitchen sink is 25.25 inches long, 19,75 inches wide, and
Lerok [7]

Answer: 4,986.875

Step-by-step explanation: Multiply 25.25 x 19.75. Then, multiply the product by 10, or shift the decimal point one place to the right.

6 0
2 years ago
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