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3 years ago

Solve the system of equations of equations by graphing on your calculator rounded to 3 decimal spaces

Mathematics

1 answer:

ozzi3 years ago

3 0

Answer:

1 and 1/2 x2 =3

Step-by-step explanation:

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Using like terms simplify-k+2(-2k-5)

MrRa [10]

Answer:

-5k-10

Step-by-step explanation:

- k + 2 (- 2k - 5) = - k - 4k - 10 = - 5k - 10

5 0

3 years ago

I need help. someone please explain to me

Alisiya [41]

Answer:

176. because 22 times

8 is 176

8 0

2 years ago

Solve the system of equations.

tino4ka555 [31]

<u>Answer:</u>

(2, 7) or (-6, 1)

<u>Step-by-step explanation:</u>

We are given two equations:

$y=x+5$ ; and

$y = x^2+5x-7$

Since y is the subject for both the equations so we can put the values of y equal to each other to get:

$x+5=x^2+5x-7$

$x^2+5x-x-7-5=0$

$x^2+4x-12=0$

Factorizing the expression to get:

$x^2-2x+6x-12=0$

$x(x-2)+6(x-2)=0$

$(x-2) (x+6) = 0$

$x=2, x= -6$

Putting x = 2 and x = -6 in any of the equations to get the values of y:

$y=x+5$

$y =2+5$

$y=7$

and

$y =(-6)+5$

$y=1$

Therefore, solution to these equation is (2, 7) or (-6, 1).

5 0

3 years ago

Read 2 more answers

9 1/2 gallons equals how many quarts

Leni [432]

38 quarts because four quart equals one gallon.

3 0

3 years ago

Read 2 more answers

Carter took 7 coins out of his pocket. He did not have any pennies.He had more than $0.95 and less than $1.13 what could his coi

RUDIKE [14]

Answer:

Carter's coins could be;

3 of 5¢, 2 of 10¢, 1 of 25¢, and 1 of 50¢

Step-by-step explanation:

The available coin denominations are;

1¢ = 1 penny, 5¢, 10¢, 25¢, 50¢, and $1.00

Since the coins are more than $0.95, we can have;

5¢ × 3

10¢× 2

25¢× 1

50¢

Total = $1.00

That is his coins could have been 3 × 5¢, 2 × 10¢, 1 × 25¢, and 1 × 50¢, to make a total of 7 coins with an amount value of $1.00.

4 0

3 years ago