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2 years ago

Can’t figure this problem out need help

Mathematics

1 answer:

zalisa [80]2 years ago

7 0

4x2x5=40

7x7=49

40+49=89

So the answer is 89

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Evaluate 2xy when x=-1/4and y=3

Yanka [14]

Answer:

see above

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2 years ago

Nancy's Cupcakes recorded how many cupcakes it recently sold of each flavor.

Alexeev081 [22]

Answer:

pumpkin because it got the most sold

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2 years ago

Which operation is NOT closed for polynomials?

MAXImum [283]

Answer:

Option D

Step-by-step explanation:

When you add, multiply or subtract polynomials, the operation results in another polynomial.

When dividing polynomials, the operation may not result in another polynomial. In this case you normally end up with rational expression in the fraction form.

This operation is said not closed.

In our case this is option D.

4 0

2 years ago

Read 2 more answers

What is the center of the ellipse x2+5y2–45=0?

jeka94

Answer:

Center is at (0,0)

Step-by-step explanation:

An equation of ellipse in standard form is:

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

Where center is at point (h,k)

From the equation of $\displaystyle{x^2+5y^2-45=0}$ . First, we add 45 both sides:

$\displaystyle{x^2+5y^2-45+45=0+45}\\\\\displaystyle{x^2+5y^2=45}$

Convert into the standard form with RHS (Right-Hand Side) equal to 1 by dividing both sides by 45:

$\displaystyle{\dfrac{x^2}{45}+\dfrac{5y^2}{45}=\dfrac{45}{45}}\\\\\displaystyle{\dfrac{x^2}{45}+\dfrac{y^2}{9}=1}$

Therefore, the center of ellipse is at (0,0) since there are no values of h and k.

8 0

2 years ago

a bag contains 6 blue chips 3 red chips 9 green chips and 2 yellow chips. if i pull a chips out, record the colors and return th

kherson [118]

Blue: 6/20 or 1/5
Red: 3/20
Yellow: 2/20 or 1/10
Hope this helps

5 0

3 years ago