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aleksandr82 [10.1K]
3 years ago
10

Help with these two please (no need to show work, please be sure ur right tho)

Mathematics
1 answer:
NeX [460]3 years ago
4 0
1. +/- sqrt(66)/6  (option 2)

2. -1 and 9
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Epressions equivalent to 10x+11​
meriva

Answer:

is 110

Step-by-step explanation:

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5 0
4 years ago
If the equation of a circle is (x + 4)2 + (y - 6)2 = 25, its radius is
vredina [299]
Equation fo a circle:
Data:
Center: C(x₀,y₀).
radius: r

(x-x₀)²+(y-y₀)²=r²

In this equation:
(x+4)²+(y-6)²=25
C(-4,6)
r²=25  ⇒r=√25=5

Then, it´s radius is 5.

If, we have got two points:
A(x₁,y₁)
B(x₂,y₂)
The distance beetween the points is:
dist(A,B)=√[(x₂-x₁)²+(y₂-y₁)²]

Then:
A(-6,7)
B(-1,-5)

dist(A,B)=√[(-1+6)²+(-5-7)²]
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dist (A,B)=√(25+144)
dist (A,B)=√169
dist (A,B)=13

the distance between the points (-6,7) and (-1,-5) is 13.


6 0
4 years ago
Consider the following expression.
bogdanovich [222]

Answer:

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Step-by-step explanation:

6 0
3 years ago
Read 2 more answers
For lunch, a restaurant discounts prices on their menu by 15% and then applies a
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It would be D

Step-by-step explanation:

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What are the zero/intercepts of the equations (x+7)(x-2)=0
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