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Over [174]
3 years ago
6

Help with these 4 questions please and thanks!!!

Mathematics
1 answer:
HACTEHA [7]3 years ago
8 0
1. The radius is ✓33≈C
2. Center: (-2,3)
Radius: ✓23
3. Equation: (x+3)^2+(y+5)^2=125
4. Center: (-1,0)

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Each big square below represents one whole. what percent is represented by the shaded area?
bazaltina [42]

Answer:

<u>43%</u>

Step-by-step explanation:

mark me as brainliest please

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2 years ago
If z is an even integer which of the following expressions must represent an odd integer?
ad-work [718]

There is no choice on your list that must represent an odd integer.

If  'z'  is an even integer, then (z-1) and (z+1) must both be odd integers.

8 0
3 years ago
G(x)=f(x)+k,solve for k
vesna_86 [32]

Step-by-step explanation:

Top answer · 0 votes

f(g(x))=362−x−2k f(g(x))=x→362−x−2k=x→x2−2x(1−k)−4(k−9)=0 Solution for x are equal if and only if discriminant Δ=0 4(1−k)2+16(k−9)=0 ...  More

3 0
3 years ago
A certain car model has a mean gas mileage of 34 miles per gallon (mpg) with a standard deviation A pizza delivery company buys
zubka84 [21]

Answer:

z =\frac{33.3- 34}{\frac{5}{\sqrt{54}}}= -1.028

z =\frac{34.3- 34}{\frac{5}{\sqrt{54}}}= 0.441

An we can use the normal standard table and the following difference and we got this result:

P(-1.028

Step-by-step explanation:

Assuming this statement to complete the problem "with a standard deviation 5 mpg"

We have the following info given:

\mu = 34 represent the mean

\sigma= 5 represent the deviation

We have a sample size of n = 54 and we want to find this probability:

P(33.3 < \bar X< 34.3)

And for this case since the sample size is large enough >30 we can apply the central limit theorem and then we can use this distribution:

\bar X \sim N(\mu , \frac{\sigma}{\sqrt{n}})

And we can use the z score formula given by:

z=\frac{\bar X -\mu}{\frac{\sigma}{\sqrt{n}}}

And replacing we got:

z =\frac{33.3- 34}{\frac{5}{\sqrt{54}}}= -1.028

z =\frac{34.3- 34}{\frac{5}{\sqrt{54}}}= 0.441

An we can use the normal standard table and the following difference and we got this result:

P(-1.028

7 0
3 years ago
Which letter has line symmetry? Answer options with 5 options Q L M J P
Gnesinka [82]

Answer:

m

Step-by-step explanation:

4 0
3 years ago
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