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3 years ago

What is ∑n=14[100(−4)n−1] equal to? Enter your answer in the box.

Mathematics

2 answers:

masya89 [10]3 years ago

7 0

Answer:

-5100 is correct! I also just took the test :)

larisa [96]3 years ago

4 0

Answer:

-5100

Step-by-step explanation:

i just took the test

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This hyperbola is centered at theorigin. Find its equation.Foci: (-2,0) and (2,0)Vertices: (-1,0) and (1,0)

beks73 [17]

SOLUTION

From the question, the center of the hyperbola is

$\begin{gathered} (h,k),\text{ which is } \\ (0,0) \end{gathered}$

a is the distance between the center to vertex, which is -1 or 1, and

c is the distance between the center to foci, which is -2 or 2.

b is given as

$\begin{gathered} b^2=c^2-a^2 \\ b^2=2^2-1^2 \\ b=\sqrt[]{3} \end{gathered}$

But equation of a hyperbola is given as

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

Substituting the values of a, b, h and k, we have

$\begin{gathered} \frac{(x-0)^2}{1^2}-\frac{(y-0)^2}{\sqrt[]{3}^2}=1 \\ \frac{x^2}{1}-\frac{y^2}{3}=1 \end{gathered}$

Hence the answer is

$\frac{x^2}{1}-\frac{y^2}{3}=1$

5 0

11 months ago

The denominator of a rational number is greater than its numerator by 5. If 5 is subtracted from the numerator and 4 is added to

nasty-shy [4]

Answer:

7/12.

Step-by-step explanation:

=x/x+5.

x-5/x+5+4=⅛

x-5/x+9=⅛

x-5=⅛(x+9)

x-5=⅛x+1⅛

x-⅛x=1⅛+5

⅞x=49/8

7x=49

x=7

thus the initial fraction is x/x+5= 7/12

A rational number is a fraction

4 0

3 years ago

Use long division to find the value of 1,875 - 15

Georgia [21]

Answer:

1860

Step-by-step explanation:

1875-15 = 1860

7 0

3 years ago

Can someone help with all of my homework

Anettt [7]

Yesssssssssssssssssssss

7 0

3 years ago

Solve for x: (x^2+2x)+x+2=0

castortr0y [4]

Answer:

$x=-5$

Step-by-step explanation:

$(x^{2} +2x)+x+2=0\\(3x^{2} )+x+2=0\\3x^{2} +x=-2\\9x+x=-2\\10x=-2\\x=-5$

Hope This Helps!!!!!

5 0

2 years ago

Read 2 more answers