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The New Haven High School cheerleaders got a t-shirt gun. The cheerleaders standon the track, and shoot the t-shirts up in the air.The quadratic function that models the height (in feet) of the t-shirt after a certainamount of time (in seconds) is:h(t) = –16ť+ 64+ + 4How high is the gun being held when it is fired?
General
4 months ago
A football game was played between team a and team b. The two teams scored a total of 41 points and team a won by a margin of 15 points. How many points did team b score?
General
4 months ago
the cost of renting a scooter is represented by 3j+5. Write and simplify an expression that represents the cost of renting 6 scooters.
General
4 months ago
The table and the equation show show the approximate speeds for a roadrunner and a coyote running at top speed. Which animal runs faster? How much faster per minute? ( 1 mile=5,280 feet, 1 minute= 60seconds
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4 months ago
The Scottsdale fire department aims to respond to fire calls in 4 minutes or less, on average. Response times are normally distributed with a standard deviation of 1 minute. Would a sample of 18 fire calls with a mean response time of 4 minutes 30 seconds provide sufficient evidence to show that the goal is not being met at α = .01?
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4 months ago
The Toylot company makes an electric train with a motor that it claims will draw an average of only 0.8 ampere (A) under a normal load. A sample of nine motors was tested, and it was found that the mean current was x = 1.32 A, with a sample standard deviation of s = 0.44 A. Do the data indicate that the Toylot claim of 0.8 A is too low? (Use a 1% level of significance.)
General
4 months ago
16 is 10% of what number
General
4 months ago
A welder drops a piece of red-hot steel on the floor. The initial temperature of the steel is 2,500 degrees Fahrenheit. The ambient temperature is 80 degrees Fahrenheit. After 2 minutes the temperature of the steel is 1,500 degrees. The function f(t)=Ce(−kt)+80 represents the situation, where t is time in minutes, C is a constant, and k is a constant.After 2 minutes the temperature of the steel is 1,500 degrees. After how many minutes will the temperature of the steel be 100 degrees and therefore safe to pick up with bare hands?
General
4 months ago
A triangular colourful scenery is made in a wall with sides 50 cm, 50 cm and 80 cm. A golden thread is to hang from the vertex so as to just reach the side 80 cm. How much length of golden thread is required ?
General
4 months ago
The attention span of children (ages 3 to 5) is claimed to be Normally distributed with a mean of 15 minutes and a standard deviation of 4 minutes. A test is to be performed to decide if the average attention span of these kids is really this short or if it is longer. You decide to test the hypotheses H0: μ = 15 versus Ha: μ > 15 at the 5% significance level. A sample of 10 children will watch a TV show they have never seen before, and the time until they walk away from the show will be recorded. At a significance level of 5%, the decision rule would be to reject the null hypothesis if the observed sample mean is greater than __________________ minutes.
General
4 months ago
Explain how to use a graph of the function f(x) to find f(3).
General
4 months ago
Which value is equal to 5% of 1,500
General
4 months ago
What else would need to be congruent to show that abc = xyz by sas
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4 months ago
Which expressions show the volume and the surface area of this cubed-shaped packing box?
General
4 months ago
PLEASE HELP BRAINLIEST GIVEN TO CORRECT ANSWER Consider the equation 2y – 4x = 12.Which equation, when graphed with the given equation, will form a system with one solution?
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4 months ago
Mrs. Cobb has 8 petunias, 16 carnations, and 20 pansies to plant in flowerpots. If she plants the same number of each type of flower in the flowerpots, how many flowerpots will she use? How many of each type of flower will be in each flowerpot? *
General
4 months ago
A diver from the university of Florida women’s swimming and diving team is competing in the NCAA Zone Championships. She is competing in the 10m Springboard event. the graph below represents the diver’s height above water t seconds after the dive. 1) how many feet above the water is the springboard?(4 ft, 4.9 ft, 10 ft or 10.8 ft) 2) what is the diver’s maximum height above the water?(4ft, 4.9ft, 10ft or 10.8ft)3) after how many seconds does the diver reach her maximum height above the water? (0.4 sec, 1.9 sec, 4.9 sec or 10.8 sec? 4) after how many seconds does the diver enter the water?( 0.4sec, 1.9 sec, 4.9 sec or 10.8 sec) please help me with this ❤️
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4 months ago
Sarah Simpson is insured for bodily injury in the amount of 10/20. She is at fault in an accident in which Fred Vail ns injured. Also injured in the accident is a pedestrian, Arthur Abel. Arthur's medical expenses total $16,000, Fred's come to $8,000. How much will the insurance pay?
General
4 months ago
Consider this equation: 2/3 x − 9 − 2x + 2 = 1 Which is an equivalent equation after combining like terms?
General
4 months ago
PLEASE ANSWER ASAP. THANK YOU!!Three of these methods give the correct area of the figure. Which method does NOT?A: Add the areas of a rectangle and a circle. Then subtract the area of a trapezoid.B: Add the areas of a rectangle, two triangles, and a circle.C: Add the areas of a rectangle and two half circles. Then subtract the area of a trapezoid.D: Add the areas of a trapezoid and two half circles.
General
4 months ago
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