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3 years ago

What’s the correct answer for this?

Mathematics

1 answer:

Yakvenalex [24]3 years ago

7 0

Answer:

Step-by-step explanation:

According to the theorem, equal sides have equal angles opposite to them so AB AND AC are equal so x and y are also equal

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Grafica y obten la ecuacion general de la circunferencia de centro y radio dados

Gelneren [198K]

Answer:

sorry I don't understand, I'm unable to read Spanish

5 0

3 years ago

If you know any of please help!

nikklg [1K]

Answers:

x intercepts are -10 and 50

the y intercept is 5000

The axis of symmetry is x = 20

The vertex is (20, 9000)

The interval of increase is -infinity < x < 20

===========================================

Explanations

The x intercepts are where the graph crosses or touches the x axis. In this case, the locations -10 and 50 are where this happens. The y intercept is 5000 as the graph crosses the y axis at this location.

The axis of symmetry is x = 20 because this vertical line cuts the parabola into two mirror halves; one half reflects over the vertical line to line up with the other half.

The x coordinate of the vertex is always equal to the axis of symmetry. The y coordinate of the vertex is y = 9000 and it is the largest y value possible. The vertex is at (20, 9000)

The interval of increase is the portion of the graph that goes uphill as you read from left to right. This is the interval -infinity < x < 20. Basically we stop at the axis of symmetry because after this point, the graph goes downhill and we have a decreasing interval here.

3 0

3 years ago

During an Apollo moon landing, reflecting panels were placed on the moon. This allowed Earth-based astronomers to shoot laser be

rusak2 [61]

Answer:

The distance between the astronomers and the moon was $7.56*10^{8]$ meters.

Step-by-step explanation:

We have that the speed is the distance divided by the time, so:

$v = \frac{d}{t}$

In this problem, we have that:

The reflected laser beam was observed by the astronomers 2.52 s after the laser pulse was sent. This means that $t = 2.52$ .

If the speed of light is 3.00 times 10^8 m/s, what was the distance between the astronomers and the moon?

We have that $v = 3*10^{8}$ m/s.

We have to find d. So:

$v = \frac{d}{t}$

$d = vt$

$d = 3*10^{8}*2.52$

$7.56*10^{8]$

The distance between the astronomers and the moon was $7.56*10^{8]$ meters.

7 0

4 years ago

On in-line skates, Bradley skates 4 miles in 20 minutes. At this speed, how long would it take him to skate the entire length of

LUCKY_DIMON [66]

Answer:

1 hour (60 minutes)

Step-by-step explanation:

If his speed remains the same, that means that this is a linear relationship. y increases at the same rate as x increases. Direct variation and all of that. Because this is a linear relationship, it can be solved using proportions. Set up the given info in a ratio with miles on the top and minutes on the bottom:

$\frac{miles}{minutes}:\frac{4}{20}$

Now we want to know how long (unknown number of minutes) it will take him to go 12 miles. Keep miles with miles and minutes with minutes:

$\frac{miles}{minutes}:\frac{4}{20}$ = $\frac{12}{x}$

We can cross multiply now to get 4x = 12(20) and 4x = 240. That means that x=60. It will take him 60 minutes (1 hour) to go 12 miles.

7 0

3 years ago

There are 7 girls to every 5 boys. If there are 84 students in all, how many are boys?

Andrej [43]

7 x 6 = 49 girls
5 x 6 = 35 boys
49+35=84
there are 35 boys <3

4 0

3 years ago