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dezoksy [38]
3 years ago
15

Gary wants to make a model that shows sunspots. What method woulGary wants to make a model that shows sunspots. What method woul

d be best for Gary to use? A. Use food coloring to make stripes on a muffin B. Add water to a cup that has several marbles C. Add many different shapes of cereal to a bowl D. Use a black marker to draw dark circles on a balld be best for Gary to use?
Mathematics
1 answer:
Ahat [919]3 years ago
4 0

Answer:

B

Step-by-step explanation:

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This is the last question but I need the answer please help
Nastasia [14]

Answer:

2

Step-by-step explanation:

Identify the coordinates as x1, y1 and x1, y2. Solve by using the formula of slope(gradient)

7 0
2 years ago
If the initial figure is 10 and then it is dilated with a scale factor of 2 what's the perimeter of dilated figure?
Gelneren [198K]

Answer:

20

Step-by-step explanation:

Initial figure times scale factor = result

10 times 2 = 20

I hope this helps!

8 0
1 year ago
65 million plus 4000
miv72 [106K]
65 million plus 4000 = <span>sixty-five million four thousand</span>
5 0
2 years ago
Read 2 more answers
Find the zeros of x^2+4x=-10 using the quadratic formula
ipn [44]
X^2+4+10=0
x=(-4(+/-)root16-40)/2, so we now know that the zeros are imaginary, because you can't square root a negative number and 16-40 is -24
so the two roots are…
-2+iroot6 and -2-iroot6

7 0
3 years ago
Read 2 more answers
Suppose taxi fare from Logan Airport to downtown Boston is known to be normally distributed with a standard deviation of $2.50.
Mariulka [41]

Answer:

95% Confidence interval for taxi fare:  ($20.5,$24.2)

Step-by-step explanation:

We are given the following data set: for fares:

$22.10, $23.25, $21.35, $24.50, $21.90, $20.75, and $22.65

Formula:

Mean = \displaystyle\frac{\text{Sum of all observations}}{\text{Total number of observation}}

Mean =\displaystyle\frac{156.5}{7} = 22.35

95% Confidence interval:

\bar{x} \pm z_{critical}\frac{\sigma}{\sqrt{n}}

Putting the values, we get,

z_{critical}\text{ at}~\alpha_{0.05} = 1.96

22.35 \pm 1.96(\frac{2.5}{\sqrt{7}} ) = 22.35 \pm 1.85 = (20.5,24.2)

6 0
2 years ago
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