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trasher [3.6K]
3 years ago
8

What equals 7x+19 pls help

Mathematics
1 answer:
Elis [28]3 years ago
3 0

Answer:

it’s unknown

Step-by-step explanation:

the variable is unknown so it would stay 7x + 19 until you know the variable unless you’re able to do 26x

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Write the standard form of an equation of an ellipse subject to the given conditions.
irina [24]

Answer:

The answer is below

Step-by-step explanation:

The standard form of the equation of an ellipse with major axis on the y axis is given as:

\frac{(x-h)^2}{b^2} +\frac{(y-k)^2}{a^2} =1

Where (h, k) is the center of the ellipse, (h, k ± a) is the major axis, (h ± b, k) is the minor axis, (h, k ± c) is the foci and c² = a² - b²

Since the minor axis is at (37,0) and (-37,0), hence k = 0, h = 0 and b = 37

Also, the foci is at (0,5) and (0, -5), therefore c = 5

Using c² = a² - b²:

5² = a² - 37²

a² = 37² + 5² = 1369 + 25

a² = 1394

Therefore the equation of the ellipse is:

\frac{x^2}{1369}+ \frac{y^2}{1394} =1

6 0
2 years ago
Evaluate the following expression<br> 1/5^-2
Kitty [74]

Answer:

25

Step-by-step explanation:

If (1/5)^2 equals 1/25, then (1/5)^-2 should be the opposite.

(1/5)^-2 equals 25

6 0
3 years ago
The volume of a drop of a certain liquid is 0.000047 liter. Write the volume of the drop of a liquid in a scientific notation. 
Llana [10]
The answer is 4.7 x 10^-4
If you move the decimal to the right, the exponent will be negative. If you move it to the left, the exponent will be positive.
5 0
3 years ago
What is the length of the missing leg? If necessary, round to the nearest tenth.
Marrrta [24]

<u>Answer:</u>

  • The length of the hypotenuse is 33 yards.

<u>Step-by-step explanation:</u>

<em>We can solve for 'a' using Pythagoras theorem. Let's solve it.</em>

  • 65² = b² + 56²
  • => 4225 = b² + 3136
  • => b² = 1089
  • => b = 33

Hence, the length of the hypotenuse is 33 yards.

Hoped this helped.

BrainiacUser1357

7 0
2 years ago
Maritza is baking cookies to bring to school and share with her friends on her birthday. The recipe requires 3 eggs for every 2
Crazy boy [7]
No, because if you work with fraction and do \frac{3}{2} (3 eggs for every 2 cups) then you would be multiplying 3x4 and now you have tot do that to the demominator so she would need 8 cups of sugar
3 0
3 years ago
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