All Questions ⁺⁰234927 Questions

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272

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help with trig

In right triangle DEF, we have angle D = 25 degrees, angle E = 90 degrees, and $EF = 19$. Find DE to the nearest tenth. You may use a calculator for this problem.

Guest Oct 25, 2021

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240

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what is 9kg:36g simplifed

what is 9kg:36g simplifed
hint
K=km,kl,kg
H=hm,hl,hg
D=dam,dal,dag
Unit=meter,liter,gram
D=dm,dl,dg
C=cm,cl,cg <#> M=mm,ml,mg read more ..

Guest Oct 25, 2021

-1

247

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trig question

In right triangle XYZ with XYZ = 90 degrees, we have XY = 24 and YZ = 25. Find tan Y.

Guest Oct 25, 2021

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220

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Quadratic function

The graph of the quadratic y = ax^2 + bx + c has the following properties: (1) The maximum value of y = ax^2 + bx + c is 5, which occurs at x = 3. (2) The graph passes through the point (0,8). If the graph passes through the point (4,m), then read more ..

Guest Oct 25, 2021

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542

2

+22

physic math

Felipe drives his car at a velocity of 28 m/s. He applies the brake, which slows the vehicle down at a rate of 6.4 m/s2 and causes it to slow to a stop. How long does it take for the car to stop? Round your answer to the nearest tenth.

Animecatgirl Oct 25, 2021

+1

4

662

9

+1640

Geometry

From the point inside a square, the distance to three corners is 4, 5, and 6 cm, respectively.
Find the length of the side of a square.

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jugoslav Oct 25, 2021

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273

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8:11 rounded to the nearest hundredth

8:11 rounded to the nearest hundredth as a decimal

Guest Oct 25, 2021

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220

0

Please help

The ratio of the cost of a lollipop to the cost of a chocolate bar was 1:3. Devi spent 3/5 of her money on 4 chocolate bars and 6 lollipops. Then she used the rest of her money to buy another chocolate bar and some lollipops. How many lollipops did she read more ..

Guest Oct 25, 2021

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273

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Pythagorean Theorem

Can the numbers 12, 16, and 18 be a Pythagorean Triple? Explain why or why not.

Guest Oct 25, 2021

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361

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Geometry

In the diagram below, EU = 8, UF = 7, GV = 5, VH = 8, and UV = 6. Find XY.

Guest Oct 25, 2021

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216

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math

At a certain time of day, a tree that is x meters tall casts a shadow that is x−23 meters long. If the distance from the top of the tree to the end of the shadow is x+2 meters, what is the height, x, of the tree?

Guest Oct 25, 2021

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195

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Coordinates

Points P and R are located at (2, 1) and (12, -15) respectively. Point M is the midpoint of segment PR. Segment PR is reflected over the x-axis. What is the sum of the coordinates of the image of point M (the midpoint of the reflected segment)? read more ..

Guest Oct 25, 2021

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295

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Complex Numbers

Determine the complex number z satisfying the equation $2z - 3i \overline{z} = -7 + 2i$. Note that $\overline{z}$ denotes the conjugate of z.

Guest Oct 25, 2021

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540

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+137

Need Help Plz

In a store window, there was a box of berries having a total weight of 200 kg. The berries were 99% moisture, by weight. After two days in the sun, the moisture content of the berries was only 98%, by weight. What was the total weight of the berries read more ..

NaturalDisaster Oct 25, 2021

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412

2

Help

Guest Oct 25, 2021

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209

0

Complex Numbers

Let r be a real number, |r| < 2, and let z be a complex number such that |1/z| = r. Find |z|.

Guest Oct 25, 2021

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249

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math help

There are twelve inches in one foot, creating the equation y = 12x. If a door frame is 6.25 feet tall, how many inches tall is it?

Guest Oct 25, 2021

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212

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Pythagorean Theorem

Is a triangle with the following side lengths a right triangle? Why? a = 4 b = 6 c = 8

Guest Oct 25, 2021

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338

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Exponents

If x and y are real numbers such that 4^x=27 and 9^y=32, what is the value of xy?

Guest Oct 25, 2021

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211

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geometry

Find the area of an isosceles triangle with two legs of length 8 and base of length $4$.

Guest Oct 25, 2021

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216

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Domain question

Let f(x) = x^2 + 2x + 5. If the domain of f is all real numbers, then f does not have an inverse function, but if we restrict the domain of f to an interval [c,\infty), then f may have an inverse function. What is the smallest value of c we can use here, read more ..

Guest Oct 25, 2021

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344

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+140

Number Theory Question

What is the average of all positive integers that have four digits when written in base 3 , but two digits when written in base 6 ? Write your answer in base 10 .

Answer and explanation please.
read more ..

sherwyo Oct 25, 2021

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246

1

Inverse Functions

If h(y) = (1 + y)/(2 + y), then what is the value of $h^{-1}(5)$? Express your answer in simplest form.

Guest Oct 25, 2021

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336

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Geometry

Point D is the midpoint of median AM of triangle ABC. Point E is the midpoint of AB, and point T is the intersection of BD and ME. Find the area of triangle DMT is $[ABC] = 160$.

Guest Oct 25, 2021

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403

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Geometry

In triangle ABC, the angles A, B, C form an arithmetic sequence. if A = 17 degrees, then what is angle C, in degrees?

Guest Oct 25, 2021

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