12h

this is for my homework.

An airplane travels 1372 kilometers against the wind in 2 hours and 1552 kilometers with the wind in the same amount of time. What is the rate of the plane in still air and what is the rate of the... more

13h

I I need help thank you

The moon Titan orbits Saturn in an elliptical path with the center of Saturn at one focus. The major and minor axes of the orbit have lengths of 51,390 km and 49,255 km, respectively. Find the... more

Who were some of the Russian iconic poem and book writers?

Russian literature is full of amazing usage of the language. There are a lot of iconic writers who influenced the language, and now their quotes are used all the time. Who were they?

Determining power series and interval of convergence from function

How do you find power series and interval of convergence for f(x)=3/(4+x) centered around x=0?

13h

Complete the square to write this function in vertex form: x2 - 12x + 23 = 0

Complete the square to write this function in vertex form:x2 - 2x - 3 = 0Complete the square to write this function in vertex form:x2 + 6x + 8 = 0

13h

Complete the square to write this function in vertex form: x2 - 12x + 23 = 0

please help with this questions.

13h

Geometry Questions

Triangle XYZ is taken by a dilation with center Y and scale factor 5/2 to Triangle X’Y’Z’. The measure of angle YXZ is 83 degrees and the measure of angle YZX is 22 degrees.Task 1: a) What is the... more

please help me with chemistry

Iron has a specific heat of 0.450 J/g·°C. How much energy is required to raise the temperature of 435 g of iron from 43.0°C to 180.0°C? -------kJ

please help me with chemistry

Given an exothermic reaction, which of the following is true?A. ΔH reaction is (+), ΔH surroundings is (-)B. ΔH reaction is (+), ΔH surroundings is (+)    C. ΔH reaction is (-), ΔH surroundings is... more

14h

How can we apply biology in our daily life

How can we apply biology in our daily life

14h

A tennis player hits a ball 3 feet above the ground with a velocity of 60 ft/sec. After how many seconds will the ball hit the ground?

If an object has been thrown or launched, the formula to model the height of the object t seconds after it has been launched is: Remember V is velocity and h is the starting point /height.h(t) =... more

14h

A tennis player hits a ball 3 feet above the ground with a velocity of 60 ft/sec. What is the maximum height the ball will reach?

If an object has been thrown or launched, the formula to model the height of the object t seconds after it has been launched is: Remember V is velocity and h is the starting point /height.h(t) =... more

14h

Really needing some help

One number is 3 more than 4 times another. The sum of the numbers is 18. Find the two numbers.

Pls help me solve this I don't understand

Analyzing the functions below, compare and contrast the two functions in each problem situation. Be sure to use complete sentences in your comparison. Be sure to include a discussion of... more

I need help with my math problem

Two tickets to the movies cost $16.If two drinks add $4.56 to the total, how much change should be received from $25?

15h

Can someone please help me with this Geometry problem?

Line p is tangent to ⊙ C at A, and line q passes through C. Lines p and q intersect at B.If m∠CBA = 14°, determine m∠ACB.

15h

Can someone please check if my answer to this Chemistry problem is correct? (My answer is in bold.)

For this question, use the following: Chlorine is used to bleach cloth. Excess Chlorine is destroyed by its reaction with Sodium Thiosulfate (Na2S2O3) according to the unbalanced equation Na2S2O3 +... more

15h

Can someone please check if my answer to this Chemistry problem is correct? (My answer is in bold.)

For the question, use the following: Phosphorus (P4) burns in Oxygen (O2) to form Diphosphorus Pentoxide.*How much Diphosphorus Pentoxide results if 3.25 moles of Phosphorus are combined with... more

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