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MATH SOLVE
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Hong's Coffee Shop makes a blend that is a mixture of two types of coffee. Type A coffee costs Hong $5.75 per pound, and type B coffee costs $4.10 per pound. This month, Hong made 170 pounds of the blend, for a total cost of $858.70. How many pounds of type A coffee did he use?
General
4 months ago
Jesse ate 100 donuts in five days. Each day 6 more donuts than the day before. How many donuts did she eat each day?
General
4 months ago
Collin is buying dirt to fill a garden bed that is a 9ft by 16ft rectangle. If he wants to fill it to a depth of 4 inches, how many cubic yards of dirt does he need? If dirt costs $25 per yard cubed, how much will the project cost?
General
4 months ago
Tom throws a ball into the air. The ball travels on a parabolic path represented by the equation h = -8t 2 + 40t, where h represents the height of the ball above the ground and t represents the time in seconds. The maximum value achieved by the function is represented by the vertex. Use factoring to answer the following:How many seconds does it take the ball to reach its highest point?What ordered pair represents the highest point that the ball reaches as it travels through the air?Hint: because parabolas are symmetric, the vertex of a parabola is halfway between the zeroes of the quadratic.
General
4 months ago
Which polynomial function has a leading coefficient of 1, roots –2 and 7 with multiplicity 1, and root 5 with multiplicity 2?f(x) = 2(x + 7)(x + 5)(x – 2)f(x) = 2(x – 7)(x – 5)(x + 2)f(x) = (x + 7)(x + 5)(x + 5)(x – 2)f(x) = (x – 7)(x – 5)(x – 5)(x + 2)
General
4 months ago
If sin A = 0.31, cos A = 0.95, sin B = 0.47, and cos B 0.88, what is sin(A+B)?
General
4 months ago
Question part points submissions used use newton's method with the specified initial approximation x1 to find x3, the third approximation to the root of the given equation. (round your answer to four decimal places.) 2x3 − 3x2 + 2 = 0, x1 = −1
General
4 months ago
HELP ASAP!! GIVING BRAINLIEST!ABC goes through a sequence of transformations to form A’B’C’. The sequence of transformations involved is a:A) rotation 180 degrees counterclockwise about the originB) translation 2 units to the rightC) translation 4 units to the leftD) reflection across the line y=xfollowed by a:A) reflection across the x-axisB) reflection across the y-axisC) rotation 90 degrees clockwise about the originD) translation 4 units to the right
General
4 months ago
The isosceles triangle has two sides of equal length , a , that are longer than the length of the base , b. The perimeter of the triangle is 15.7 centimeters. The equation 2a+b=15.7 models this information.If one of the longer sides is 6.3 centimeters, which equation can be used to find the length of the base ?
General
4 months ago
What are the advantages and disadvantages of technological versus old-school methods for determining position at sea.
General
4 months ago
Factor completely 21x3 + 35x2 + 9x + 15. (3x − 5)(7x2 − 3) (3x − 5)(7x2 + 3) (3x + 5)(7x2 − 3) (3x + 5)(7x2 + 3)
General
4 months ago
Susan works as a tutor for $10 and hour, and as a waitress for $11 an hour. This month, she worked a combined total of 90 hours at her two jobs. Let T be the number of hours Susan worked this month. Write an expression for the combined total dollar amount she earned this month. <, >, greater than or equal to, less than or equal to?
General
4 months ago
if a + b + C = -1 and x + y + z = -8, what is -8z -8x + 5a + 5c - 8y + 5b
General
4 months ago
The following random sample was selected from a normal distribution: 4.5, 6.4, 2.3, 1.8, 5.3, then the 95% confidence interval to estimate the population mean is between __________.
General
4 months ago
What is the equation in point-slope form of the line passing through (4, 0) and (2, 6)? (5 points) y = 4x − 2 y = 2x − 4 y = −3(x − 4) y = 3(x + 4)
General
4 months ago
The office of the coroner is maintained at 21°C. While doing an autopsy on a murder victim, the coroner is killed and the victim's body is stolen. The coroner's assistant discovers his chief's body and finds that its temperature is 31°C. An hour later, the body temperature is down to 29°C. Assuming that the coroner's body temperature was 37°C when he died, use Newton's law of cooling to show that the coroner was killed about two hours and seven minutes before his body was found
General
4 months ago
The population of an Asian country is growing at the rate of 0.7% annually. If there were 3,942.000 residents in the city in 1995. Find how many to the nearest ten thousand) are living in that city in 2000. Use y = 3,942,000(2.7)0.0074 a) 370,000 b) 4,000,000 c) 4.160,000 d) 4.320,000
General
4 months ago
A company makes batteries with an average life span of 300hours with a standard deviation of 75 hours. Assuming thedistribution is approximated by a normal curve fine theprobability that the battery will last:(give 4 decimal places foreach answer)a. Less than 250 hoursb. Between 225 and 375 hoursc. More than 400 hours
General
4 months ago
The trustees of a college have accepted a gift of $150000, but are required to deposit it in an account paying 6% per year, compounded semiannually. They may make equal withdrawals at the end of each six-month period, but the money must last 4 years. a. The amount of each withdrawal is $ (Round your answer to the nearest cont.) b. If the money must last 5 years, the amount of each withdrawal is (Round your answer to the nearest cont.) a. Find the amount of each withdrawal. b. Find the amount of each withdrawal if the money must last 5 years.
General
4 months ago
A sample of 5 hotels reported the price for a night's stay:$189 $219 $259 $329 $129What is the range of the prices of a night’s stay? How to find the standard deviation of the nightly prices
General
4 months ago
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