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navik [9.2K]
2 years ago
9

What quadratic equation could be solved to find any solutions to the system of equations?

Mathematics
1 answer:
Kipish [7]2 years ago
7 0

Answer:

Step-by-step explanation:

x²+7x-11=-5x+6

x²+7x+5x-11-6=0

x²+12x-17=0

x=\frac{-12\pm \sqrt{12^2-4*1*(-17)} }{2*1} \\=\frac{-12 \pm \sqrt{144+68} }{2} \\=\frac{-12 \pm \sqrt{212}}{2} \\=\frac{-12+2\sqrt{53}}{2}\\=-6 \pm \sqrt{53}

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The base of an isosceles triangle is 2 cm. The perimeter of the triangle is 10 cm.
cluponka [151]

Answer and Step-by-step explanation:

Greetings!

Let's~solve~your~question!

To~find~the~length~of~equal~sides~of~an~isosceles~triangle,~we~use~the~following\\formula.

\boxed{~P=2a+b~}

Now,~solving~for~``a":

P=\frac{P}{2} -\frac{b}{2}

=\frac{10}{2}-\frac{2}{2}

=5-1

=4

Thus,~each~equal~sides~of~an~isosceles~triangle~is~4cm.

Hope~my~answer~helps~and~have~a~blessed~day~ahead!

-Isabelle~Williams

8 0
3 years ago
PLEASE HELP I REALLY NEED HELP
soldi70 [24.7K]

Answer: An is n+1 and A10 is 4

Step-by-step explanation:

The question is very vague and hard to answer. so A1 is -5, count up by 1 ten times, including -5, so -5, -4, ..., 3, 4. An is a just the way it changes, so it adds by one every time.

Hope this helps, it is a very vague question tho.

4 0
2 years ago
Read 2 more answers
A penny is 0.061 inchthick. wath is the valuee of the 6 in the thickness of a penny
qaws [65]
The value of 6 is 6 hundreths
5 0
3 years ago
Lillianne made 6 out of every 10 baskets she attempted during basketball practice. If she attempted to make 25 baskets, how many
patriot [66]

Answer:

15.

Step-by-step explanation:

(6/ 10) * 25

= 0.6 * 25

= 15.

3 0
3 years ago
Solve the system of linear equations by substitution.<br> y=X-4<br> - 2x+y= 18
11Alexandr11 [23.1K]

Answer:

] y=x-4

-2x+y=18

y - x = -4

y - 2x = 18

equation [2] for the variable y

[2] y = 2x + 18

// Plug this in for variable y in equation [1]

[1] (2x+18) - x = -4

[1] x = -22

// Solve equation [1] for the variable x

[1] x = - 22

// By now we know this much :

y = 2x+18

x = -22

// Use the x value to solve for y

y = 2(-22)+18 = -26

Step-by-step explanation:

please mark me as brainlist please

4 0
2 years ago
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