All Questions ⁺⁰237681 Questions

0

479

1

geometry. help asap

In triangle ABC, let the angle bisectors be and . Given AB=8, AY=6, and CY=4, find BZ.

Guest Jul 31, 2021

0

389

1

help counting

There are 97 students in South High School. South High School offers only Chinese and Spanish. There are 5 more students in Chinese than in Spanish, and every student takes at least one language. If 48 students take only Spanish, then how many take both read more ..

Guest Jul 31, 2021

0

341

0

hlp

Three friends have a total of 7 identical pencils, and each one has at least one pencil. In how many ways can this happen?

Guest Jul 31, 2021

0

287

0

system

Solve for x and y:

2x - 3y = -3.2 - 0.2x + 0.1y
x = 0.6x - y + 8.8 - 0.5*x read more ..

Guest Jul 31, 2021

0

412

2

help counting

How many different numbers are obtainable from five 5s by first concatenating some of the 5s, then multiplying the results?

Guest Jul 31, 2021

0

485

1

Number Theory

How many zeros are at the end of (100!)(200!)(300!)(400!) when multiplied out?

Guest Jul 31, 2021

+1

410

1

coordinates

What is the equation of the line that passes through the point (5,1) and has a slope of 5/6?

Guest Jul 31, 2021

0

453

5

help counting

How many three digit odd numbers can be formed from the digits 1, 2, 3, and 4, if digits can be repeated?

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Guest Jul 31, 2021

0

438

1

Algebra

If f(x) = (x + 4)/(x^2 + ax + b) and f(x) has two vertical asymptotes at x=1 and x=2, then find the sum of a and b.

Guest Jul 31, 2021

0

510

1

help algebra

If a + b = 7 and a^3 + b^3 = 42 + ab, what is the value of the sum 1/a + 1/b? Express you answer as a common fraction.

Guest Jul 31, 2021

0

305

0

need help

The points (1,7), (-13,16), and (5,k) where k is an integer, are vertices of a non-degenerate triangle. What is the sum of the values of k for which the area of the triangle is a minimum?

Guest Jul 31, 2021

0

713

1

helppp geometry

A square in the coordinate plane has vertices at $(0,0)$, $(1,0)$, $(1,1)$, and $(0,1)$. A line with slope $5$ splits this square into two regions with equal area. What is the $y$-intercept of this line?

TYSM!!! :)) read more ..

Guest Jul 31, 2021

0

322

1

help algebra

If 3a + b + c = -3, a + 3b + c = 9, a + b + 3c = -19, then find abc.

Guest Jul 31, 2021

0

357

1

some help please? tysm! :D

hello! I need some help on a problem. it's honestly driving me crazy and even my math tutor couldn't do it. I'm getting very angry and i feel like im going to explode jsdgfjss helpppp

Let $G$ be the center of equilateral triangle read more ..

Guest Jul 31, 2021

0

612

1

Graphing

The area of the triangle formed by x- and y-intercepts of the parabol y=0.5(x-3.5)(x+k) is equal to 1.5 square units. Find all possible values of k.

Guest Jul 31, 2021

0

435

1

Parabola

The equation of a parabola is given. y=3/4*x^2−16x+15 What are the coordinates of the vertex of the parabola?

Guest Jul 31, 2021

0

451

1

Inverse Functions

If h(y) = (1 + y)/(2 - y), then what is the value of $h^{-1}(15)$? Express your answer in simplest form.

Guest Jul 31, 2021

0

418

1

need algebra help

If x, y, and z are real numbers for which
x + y - z = -8
x - y + z = 18
-x + y + z = 30 read more ..

Guest Jul 31, 2021

0

403

1

Parabola

Find the equation of the axis of symmetry of the graph of y = (x - 4)^2 - 10.

Guest Jul 31, 2021

Jul 30, 2021

0

406

1

pls help

In isosceles right triangle ABC, shown here, AC = BC. Point X is on side BC such that CX = 6 and XB = 12, and Y is on side AB such that XY is perpendicular to AB. What is the ratio of BY to YA?

read more ..

Guest Jul 30, 2021

-1

685

4

ahaha... last resort pls help? :')

istg my math tutor and I worked on these two problems:

1. Let $G$ be the center of equilateral triangle $XYZ.$ A dilation centered at $G$ with scale factor $-\frac{4}{3}$ is applied to triangle $XYZ,$ to obtain triangle $X'Y'Z'.$ read more ..

Guest Jul 30, 2021

0

319

1

Relly need some help :(

In triangle $ABC,$ $AC = BC = 7.$ Let $D$ be a point on $\overline{AB}$ so that $AD = 8$ and $CD = 3.$ Find $BD.$

Guest Jul 30, 2021

0

306

1

geometry

In rectangle ABCD, shown here, CE is perpendicular to BD. If BC = 3 and DC = 8, what is CE?

Guest Jul 30, 2021

0

289

0

help function

The function f(n) = 3f(n-2) + 2f(n-1), where f(2) = 3 and f(1) = -1. What is the value of f(5)?

Guest Jul 30, 2021

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