1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
padilas [110]
2 years ago
8

6 1/2 equals 1 1/4 + n

Mathematics
1 answer:
11111nata11111 [884]2 years ago
6 0

Answer:

yhy

Step-by-step explanation:

uhuj

You might be interested in
A diagonal cross section of a sphere produces which two-dimensional shape?
const2013 [10]

<span>A diagonal cross section of a sphere produces a circle.

Regardless of how the sphere is cut, it will form a circle.

</span>

<span>Thank you for posting your question. I hope you found what you were after. Please feel free to ask me more</span>

4 0
3 years ago
Rewrite using the distributive property: 24 + 16
viva [34]

Answer:8(3+2)

Step-by-step explanation: Find gcf which is 8 then think what 24 divide 8 equal and think what 16 divide 8 equals.

6 0
2 years ago
If y/z=4/7, then z/y=
topjm [15]

Answer:

z/y = 7/4

Step-by-step explanation:

In y/z = 4/7, the numerator and denominator correspond with each other

So, y =4 and z = 7

5 0
2 years ago
<img src="https://tex.z-dn.net/?f=%24a%2Ba%20r%2Ba%20r%5E%7B2%7D%2B%5Cldots%20%5Cinfty%3D15%24%24a%5E%7B2%7D%2B%28a%20r%29%5E%7B
riadik2000 [5.3K]

Let

S_n = \displaystyle \sum_{k=0}^n r^k = 1 + r + r^2 + \cdots + r^n

where we assume |r| < 1. Multiplying on both sides by r gives

r S_n = \displaystyle \sum_{k=0}^n r^{k+1} = r + r^2 + r^3 + \cdots + r^{n+1}

and subtracting this from S_n gives

(1 - r) S_n = 1 - r^{n+1} \implies S_n = \dfrac{1 - r^{n+1}}{1 - r}

As n → ∞, the exponential term will converge to 0, and the partial sums S_n will converge to

\displaystyle \lim_{n\to\infty} S_n = \dfrac1{1-r}

Now, we're given

a + ar + ar^2 + \cdots = 15 \implies 1 + r + r^2 + \cdots = \dfrac{15}a

a^2 + a^2r^2 + a^2r^4 + \cdots = 150 \implies 1 + r^2 + r^4 + \cdots = \dfrac{150}{a^2}

We must have |r| < 1 since both sums converge, so

\dfrac{15}a = \dfrac1{1-r}

\dfrac{150}{a^2} = \dfrac1{1-r^2}

Solving for r by substitution, we have

\dfrac{15}a = \dfrac1{1-r} \implies a = 15(1-r)

\dfrac{150}{225(1-r)^2} = \dfrac1{1-r^2}

Recalling the difference of squares identity, we have

\dfrac2{3(1-r)^2} = \dfrac1{(1-r)(1+r)}

We've already confirmed r ≠ 1, so we can simplify this to

\dfrac2{3(1-r)} = \dfrac1{1+r} \implies \dfrac{1-r}{1+r} = \dfrac23 \implies r = \dfrac15

It follows that

\dfrac a{1-r} = \dfrac a{1-\frac15} = 15 \implies a = 12

and so the sum we want is

ar^3 + ar^4 + ar^6 + \cdots = 15 - a - ar - ar^2 = \boxed{\dfrac3{25}}

which doesn't appear to be either of the given answer choices. Are you sure there isn't a typo somewhere?

7 0
2 years ago
) Which expressions are equivalent to 45? Choose ALL that apply.
VMariaS [17]
4.5 and maybe 16-64. If they count -
5 0
2 years ago
Other questions:
  • a circle with center (1,5) passes through the point (10,10). what is the area of the circle rounded to the nearest square unit?
    11·1 answer
  • What is the depth and volume of this rectangular prism in cubes and cubic inches?
    13·1 answer
  • 3/4 -0.8 7/10 -3/4 from least to greatest
    7·2 answers
  • What are the 2 shapes
    8·1 answer
  • Solve the following for g please and explain if you can, thank you!
    10·1 answer
  • Suppose the required reserve ratio is 20 percent. If banks are conservative and choose not to loan all their excess reserves, th
    15·1 answer
  • URGENT HURRY ILL MAKE YOU BRAINIEST IF YOU ANWSER. Mae ling earns a weekly salary of $375 plus a 7.5 commission on sales at a gi
    6·1 answer
  • Please help !!! I don’t know this brainliest?
    12·2 answers
  • Solve for b <br> ցb – m = 9
    15·1 answer
  • Maria rides her bicycle to school at a constant speed of 15 miles per hour.If the distance to school is 6 miles,how many minutes
    12·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!