All Questions ⁺⁰238458 Questions

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A geometric series has common ratio where b.0 . Show that the series has a sum to infinity if 0

A geometric series has common ratio where b.0 . Show that the series has a sum to infinity if 0

Guest Oct 15, 2022

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283

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geometric sequence

a geometric sequence has first term a and the last term L and the sum of all these terms is S.prove that the common ratio of sequence is s-a/s-L

Guest Oct 15, 2022

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220

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quadratic

What is the minimum value of z if z=x^2+2y^2+16x-4y+22-4xy?

Guest Oct 15, 2022

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250

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precalc

Find the smallest positive -intercepts of the graph of
y = cos (12x) + cos(16x) + cos(20x)
and list them in increasing order.
Submit your answer as a list of x-coordinates from least to greatest.

Guest Oct 15, 2022

Oct 14, 2022

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280

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If then find all the possible values for .

If then find all the possible values for .

Guest Oct 14, 2022

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267

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Decimals

if 0.9 \overline{7} is written as a common fraction a/b, what is the value of a - b?

Guest Oct 14, 2022

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275

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Sequence

The first four terms in an arithmetic sequence are x + y, x - y, x + 3y, and 1, in that order. What is the fifth term?

Guest Oct 14, 2022

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289

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Please help, I'm stuck on this geo question

The tangent to the circumcircle of triangle WXY at X is drawn, and the line through W that is parallel to this tangent intersects XY at Z. If XY = 14 and WX = 6, find YZ.

[asy]
unitsize(2 cm);
pair read more ..

Guest Oct 14, 2022

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273

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coordinate

The length of the segment between the points (2a,a - 4) and (4,-7) is 2*sqrt(10) units. What is the product of all possible values for a?

Guest Oct 14, 2022

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283

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What polynomial must be added to -3c^2+3-6c in order to get a sum of 2c^2-c+5?

What polynomial must be added to -3c^2+3-6c in order to get a sum of 2c^2-c+5?

Guest Oct 14, 2022

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263

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plzz help and thank you!!

1. Calculate each answer using mental math.
(a) 180% of 50
(b) 50% of 180
(c) 204% of 25
(d) 20% of 650 <#> (e) 80% of 650 <#> (f) 6% of 25 <#> 2. You are shopping in a city where the sales tax rate is 9.25%. <#> (a) How much, including tax, would read more ..

Guest Oct 14, 2022

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246

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Counting

Dogs in the GoodDog Obedience School win a blue ribbon for learning how to sit, a green ribbon for learning how to roll over, and a white ribbon for learning how to stay. There are 100 dogs in the school.
* 62 have blue ribbons, read more ..

Guest Oct 14, 2022

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285

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help counting

(a) Grogg is ordering pizza from a local pizzeria, which offers ten different toppings: pepperoni, mushrooms, sausage, onion, olives, green peppers, pineapple, spinach, garlic, and hummus (an favorite). For any pizza, any combination of read more ..

Guest Oct 14, 2022

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287

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coordinates

The circle centered at (2,-1) and with radius 4 intersects the circle centered at (2,5) and with radius 2*sqrt(3) at two points A and B. Find AB^2.

Guest Oct 14, 2022

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305

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Algebra

Consider the system of equations
5x + y = 31 + 2x - 2y,
-3x + 4y = -37 - 8x.
Solve the first equation for y in terms of x. Enter your answer in the form "y = ..." read more ..

Guest Oct 14, 2022

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276

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Number Theory

For how many positive integers n less than 100 is 5^n + 8^{n+1} + 12^{n+2} a multiple of 6?

Guest Oct 14, 2022

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282

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Algebra

Find all solutions to the system
a + b = 14
a^3 + b^3 = 812 + a^2 + b^2

Guest Oct 14, 2022

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271

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Help

Let and . Also denote the inverses to these functions as and . Compute\[f(g^{-1}(f^{-1}(f^{-1}(g(f(5))))).\]

Guest Oct 14, 2022

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239

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math problem

There are 12 ordered pairs of integers (x,y) that satisfy x^2 + y^2 = 25. What is the greatest possible sum x+y if x = 5?

Guest Oct 14, 2022

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272

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distribution property

How would I rewrite this using the distribution property?
10,400=(20x-2x)(520+80x)
I know it can be turned into a quadratic equation.

Guest Oct 14, 2022

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240

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i need helppppp

Guest Oct 14, 2022

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229

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Polynomial

Find the constant term in the expansion of \[\Big(2z - \frac{1}{\sqrt{z}} + 2 \Big)^9.\]

Guest Oct 14, 2022

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232

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counting

Marvin the fly starts at (0,0) Each step, Marvin moves one unit right or one unit up. He is trying to get to the point (5,8) . However, at (4,3) there is a frog that will eat him if he goes through that point. In how many ways can Marvin reach read more ..

Guest Oct 14, 2022

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222

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Inequality

If 17/5 < x < 1/5 + 17, what is the sum of all possible integer values of x?

Guest Oct 14, 2022

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222

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Algebra

Suppose that j = 4, a = j + 7 and z = a + 5. What is the value of jaz^2?

Guest Oct 14, 2022

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