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Anestetic [448]
3 years ago
12

I need help with this problem. Please!

Mathematics
1 answer:
Leviafan [203]3 years ago
6 0
The first blank is 69 degrees
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Find the principle fourth root of -81, checking your answer by raising to the 4th power. If there are "no real roots," then type
kondaur [170]

Answer:

None

Step-by-step explanation:

There are actually 2 answers, 3 and -3. Although if you put it in a calculator, it would show "math error" or undefined. That's because the index is even (4) and the radicand is negative (-81)

4 0
3 years ago
Write an equation for an ellipse centered at the origin, which has foci at (0,\pm\sqrt{63})(0,± 63 ​ )left parenthesis, 0, comma
steposvetlana [31]

Answer:

\frac{x^{2} }{4312 } + \frac{y^{2} }{8281 }

Step-by-step explanation:

Since the foci are at(0,±c) = (0,±63) and vertices (0,±a) = (0,±91), the major axis is the y- axis. So, we have the equation in the form (with center at the origin) \frac{x^{2} }{b^{2} } + \frac{y^{2} }{a^{2} }.

We find the co-vertices b from b = ±√(a² - c²) where a = 91 and c = 63

b = ±√(a² - c²)

= ±√(91² - 63²)

= ±√(8281 - 3969)

= ±√4312

= ±14√22

So the equation is

\frac{x^{2} }{(14\sqrt{22}) ^{2} } + \frac{y^{2} }{91^{2} } = \frac{x^{2} }{4312 } + \frac{y^{2} }{8281 }

8 0
3 years ago
How many 0.45-ounce packages of cinnamon can be made with 3.15 ounces of cinnamon?​
Ghella [55]

Answer:

7 packages of cinnamon

Step-by-step explanation:

3.15/0.45 = 7

5 0
3 years ago
Read 2 more answers
Find the distance between two points -9,-5 and 0,7
Arada [10]
To find the distance, you need to subtract the second point from the first one. So:

0 - (-9) = 9 ( two minuses turn into a positive)

And

7 - (-5) = 12

So the difference between the points is 9 units on the x- axis and 12 on the y-axis.

Hope this helped and pls mark as brainliest!

~Luna
3 0
3 years ago
Read 2 more answers
What is the value of x?<br><br> Enter your answer, as a decimal, in the box.
Rudiy27
49.5 / 71.5 = x / 97.5
x = 49.5 * 97.5 / 71.5
x = 67.5

answer
x = 67.5 ft
3 0
2 years ago
Read 2 more answers
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