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MATH SOLVE
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General
Multiply and combine like terms. Then explain what you notice about the two different results. (i) (√3+√2)(√3+√2) (ii) (√3+√2)(√3-√2)
General
5 months ago
Which of these statements are true for all a, b > 0? Explain your conjecture. (i). 2(a + b) = 2a + 2b (ii) a+b/2= a/2+b/2 (iii) √a+b= √a+√b
General
5 months ago
Mr. Perez owns a sneaker store. He bought 350 pairs of basketball sneakers and 150 pairs of soccer sneakers from the manufacturers for $62,500. He sold all the sneakers and made a 25% profit. If he sold the soccer sneakers for $130 per pair, how much did he charge for one pair of basketball sneakers?
General
5 months ago
Evaluate 5x^2 − 10x when the value of x is (2-√5)/2
General
5 months ago
solve each of the following equations for a.2^x = 16)
General
5 months ago
In the following equations, let x=−3 and y=2/3. Determine whether the following equations are true, false, or neither true nor false.7. xy =−28. x+3y=−19. x+z=410. 9y=−2xx11. y/x=−2
General
5 months ago
What is the image of (-9,-3) after a reflection over the line y=-x
General
5 months ago
In a given year there is a 3% chance you will get in a small accident costing around $2000 and 0.1% chance you will get in a major accident costing around $150,000 and a 96.9% chance you will not get in any accident what premium should insurance company charge if they want an average profit of $400
General
5 months ago
A car travels the first 50km of its journey at an average speed of 25m/s snd the next 120km at an average speed of 80km/h. The car completes the lat part of its journey at an average speed of 90km/h in 35 minutes. Find the average speed for its entire journey ,giving your answer in km/h.
General
5 months ago
Rewrite each expression as a sum or difference of terms. (i) (x+3)(x-3) (ii) (x^2-3)(x^2+3) (iii) (x^15+3)(x^15-3) (iv) (x-3)(x^2-9)(x+3) (v) (x^2+y^2)(x^2-y^2) (vi) (x^2+y^2)^2 (vii) (x-y)²(x+y)² (viii) (x-y)²(x²+y²)² (x+y)²
General
5 months ago
the total heigh of bill mary and rob is 180 cm bob is twice as tall as bill and mary is 28 cm taller than bill how tall is rob
General
5 months ago
"How much do students pay, on average, for textbooks during the first semester in college? From a random sample of 400 students the mean cost was found to be $357.75 ,and the sample standard deviation was $37.89. Assuming that the population is normally distributed, find the margin of error of a 95% confidence interval for the population mean. Compute the confidence interval and describe in words what it means."
General
5 months ago
The below figure is a parallelogram. Find the values for each variable.
General
5 months ago
Can somebody help me? Write the phrase as an expression. Then evaluate when x = 2 and y = 10. #1 Twelve more than the product of 5 and a number x. #2 15 decreased by the product of a number x and 4. #3 You eat 5 slices of bread. Your friend eats 2 slices fewer than you eat. Write an expression that describes the number of slices your friend eats. #4 Your uncle is 2 years older than 3 times your age. A. You are x years old. Write an expression that describes your uncle's age. B. You are 12 years old. How old is your uncle.
General
5 months ago
You’re assisting a craft vendor at a fair who sells 5 knit hats for $9.50 each. She then sells the sixth and seventh for $11.25 each, and the eighth and ninth for $8.75 each. At the end of the fair, she is charged 15% of her gross earnings for the booth space. How much money does she make after paying for the booth space?
General
5 months ago
A certain car depreciates such that its value at the end of each year is p % less than its value at the end of the previous year. If that car was worth a dollars on December 31, 2010 and was worth b dollars on December 31, 2011, what was the car worth on December 31, 2013 in terms of a and b ?
General
5 months ago
What is the equation of the line that passes through the point of intersection of the lines y = 2x − 5 and y = −x + 1, and is also parallel to the line y equals start fraction one over two end fraction x plus four question mark?
General
5 months ago
If 2a = 80 and b = c, what is the measure of bA.) 40B.) 50C.) 80D.) 100
General
5 months ago
Joy needs to mix a 20% acid solution with a 60% acid solution to create 100 millileters of a 28% solution. How many millileters of each solution must Joy use?
General
5 months ago
a rocket is launched from a tower. the height of the rocket, y in feet, is related to the time after launch, x in seconds, by the given equation. using this equation, find the time that the rocket will hit the ground, to the nearest 100th of second.equation: y=-16x^2+153x+98
General
5 months ago
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