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Lesechka [4]
4 years ago
10

I need help What's the answer to this

Mathematics
2 answers:
shtirl [24]4 years ago
7 0
After simplifying you get (-9,10)
PolarNik [594]4 years ago
7 0
Let's solve this system of linear equations using the addition/subtraction method.  Divide all 3 terms of the 1st equation by 5.  Combine the resulting equation with the 2nd given equation (2x+y=-8).  This will eliminate "x."

Now find y.  

Next, subst. your value of y into either of the original equations; find x.

Write your values for x and y as (x, y).  That's your "solution."
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Simplify the expression
Studentka2010 [4]
The answer to your question is 
x^33
7 0
3 years ago
The triangles shown below must be congruent.
leonid [27]
These triangles are congruent by AAS condition hence the statement is true
7 0
3 years ago
Read 2 more answers
What is the value of log3 81?
elixir [45]

Answer:

Answer:

4

Step-by-step explanation:

3 0
4 years ago
HELP ASAP WILL MARK THE BRAINLIEST!
kap26 [50]

Answer:

y = 3x² + 54x + 240

Step-by-step explanation:

The equation of a parabola in vertex form is

y = a(x - h)² + k

where (h, k) are the coordinates of the vertex and a is a multiplier

here (h, k) = (- 9, - 3), thus

y = a(x + 9)² - 3

To find a substitute either of the roots into the equation

Using (- 8, 0), then

0 = a(- 8 + 9)² - 3

0 = a - 3 ( add 3 to both sides )

a = 3

y = 3(x + 9)² - 3 ← in vertex form

Expand factor and simplify

y = 3(x² + 18x + 81) - 3

  = 3x² + 54x + 243 - 3

  = 3x² + 54x + 240 ← in standard form

3 0
3 years ago
Assume that z scores are normally distributed with a mean of 0 and a standard deviation of 1. if p(z >
madreJ [45]
Given that μ=0, and σ=1, P(z>c)=0.1093
thus
P(z<c)=1-0.1093=0.8907
hence the value of c will be:
z-score=(c-μ)/σ
thus
1.23=(c-0)/1
c=1.23
8 0
4 years ago
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