All Questions ⁺⁰236361 Questions

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298

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geometry

In the figure below, ABCD is a parallelogram, AD= 18 and DC=54. Segments EG and FH are perpendicular to sides of the parallelogram as shown, and EG =18. What is the area of the parallelogram?

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Guest Apr 27, 2022

0

278

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3d Geometry

Points A, B, and C are on a sphere whose radius is 13. If AB = BC = , what is the longest possible value of AC?

Guest Apr 27, 2022

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296

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trig

Let alpha be an angle in the third quadrant such that tan alpha = . Compute cos alpha.

Guest Apr 27, 2022

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294

1

Angles

Let theta be an acute angle such that sin 2 theta = sin 3 theta + sin theta. What is the measure of theta in degrees?

Guest Apr 27, 2022

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272

1

Equation

For what values of y does the following equation have no solutions for x?
xy + 5y + 4x + 20=1 + 6x + 3y

Guest Apr 27, 2022

0

275

1

Hard geometry

In the diagram, four circles of radius 4 units intersect at the origin. What is the number of square units in the area of the shaded region? Express your answer in terms of pi.

Note: The four centers are four vertices of a regular read more ..

Guest Apr 27, 2022

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301

1

(6/7 - 9/14) : 2/7

(6/7 - 9/14) : 2/7

Guest Apr 27, 2022

0

272

1

Algebra system

Find all solutions to the system
a + b = 14
a^3 + b^3 = 812 + 4ab

Guest Apr 27, 2022

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280

1

trig problem

Find the area of triangle ABC.

Guest Apr 27, 2022

+4

286

2

+344

Limits

Lim x^2 - 8 + 15
x->3 -----
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hipie Apr 27, 2022

-1

281

3

triangle geometry

If AE/DE = 3, then what is AD/BC?

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Guest Apr 27, 2022

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295

1

Write the quadratic equation in standard form:

Write the quadratic equation in standard form:
7x^2+6x-4=5x2

Guest Apr 27, 2022

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274

1

Number Theory

What is the remainder when 333^{333} is divided by 13?

Guest Apr 27, 2022

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280

1

Coordinates

A circle centered at the origin is tangent to the line x-2y+25=0. What is the area of the circle? Find the coordinates of the point of tangency.

Guest Apr 27, 2022

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266

1

Algebra Problem

If $x$ is a real number such that $2^{2x+3}=14$, find $2^x$.

Guest Apr 27, 2022

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284

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triangles

The centroid of triangle ABC is G. Given AD = 15 and BE = , find the area of triangle ABC.

Guest Apr 27, 2022

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260

1

Algebra Question

Let \[f(x) = \begin{cases} 3x^2 + 2&\text{if } x\le 3, \\ ax - 1 &\text{if } x>3. \end{cases} \]Find $a$ if the graph of $y=f(x)$ is continuous (which means the graph can be drawn without lifting your pencil from the paper).

Guest Apr 27, 2022

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257

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Inequality problem

Find all p which satisfy both the inequalities 0 >= 64p - 144 and 0 > 22 - 20p. Express your answer in interval notation, reducing any fractions in your answer.

Guest Apr 27, 2022

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270

2

Advanced Systems of Equations

The sum of three numbers $a, b$ and $c$ is 60. If we decrease $a$ by 7, we get the value $N$. If we increase $b$ by 7, we get the value $N$. If we multiply $c$ by 7, we also get the value $N$. What is the value of $N$?

Guest Apr 27, 2022

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264

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triangle geometry

The centroid of ABC is G. Find AG.

Guest Apr 27, 2022

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272

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circles

Grogg draws the following figure. It so happens tha angle SAP is less than 3 times angle SOP. Find the degree measure of angle SAP.

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Guest Apr 27, 2022

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267

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circles

Find the measure of arc CE, in degrees.

Guest Apr 27, 2022

+2

437

6

+29

Someone please help me ! I really need it (Algebra)

1. Suppose that the weights of 3500 registered female Great Danes in the United States aredistributed normally with a mean of 125 lb. and a standard deviation of 5.2 lb.
Approximately how many of the Great Danes weigh more than 130.2 lbs.?
2. Body read more ..

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shadster Apr 27, 2022

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277

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geometry

ABCDEFGH is a regular octagon of side 12cm. Find the area in square centimeters of trapezoid .

Guest Apr 27, 2022

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283

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help algebra

Richard needs to fly from San Diego to Halifax, Nova Scotia and back in order to give an important talk about mathematics. On the way to Halifax, he will get a speed boost from the wind which blows at 50 miles per hour (mph). On the way back, the plane read more ..

Guest Apr 27, 2022

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