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Novay_Z [31]
3 years ago
5

Which figure does not appear to be congruent to the figure shown?

Mathematics
1 answer:
Artemon [7]3 years ago
8 0
C im pretty sure thats it
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Which equation has an a-value of -2,a b-value of 1 , and a c-value of 3? A. 0=-2x^2+x+3 B. 2x^2+x+3 C. 0=-2x^2+3. 0=2x^2-x+3
katrin2010 [14]

Answer:A

Step-by-step explanation:

0=-2x^2+x+3

-2x^2+x+3=0

a=-2 b=1 c=3

6 0
2 years ago
Is this standard form <br>25x - 80y = 160​
kvv77 [185]

Answer:

true

Step-by-step explanation:

because the variable terms are in the left side of the equation and everything else in right side.

5 0
3 years ago
The t value for a 99% confidence interval estimation based upon a sample of size 10 is
Aliun [14]
Answer:
For a sample size of 10, the t-value is about 3.25 (from tables) at a 99% confidence interval.

Explanation:
When the standard deviation for the population is not known, the confidence interval estimate for the population mean is performed with the Student's t-distribution.
The confidence interval for the mean is calculated as
(\Bar{x}- t\frac{s}{\sqrt{n}} , \, \Bar{x}+ t\frac{s}{\sqrt{n}}
where
 \Bar{x} = sample mean,
s = sample standard deviation,
t = t-value (provided in tables),
n =  sample size.

When reading the t-value, (n-1) is called the df or degrees of freedom.

7 0
3 years ago
Using point-slope form, write an equation of the line that passes through (2,-1) and has a slope of -5
expeople1 [14]
Y – y1 = m(x – x1)

y-(-1)=-5(x-2)

Y+1=-5(x-2)
5 0
2 years ago
Help pleaseeeeeeeeee​
ad-work [718]

Answer:

non of these choices I guess

4 0
2 years ago
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