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he Charleston family has less than 500 Dalmatians. There are six times as many Dalmatians with black spots on their right ears as Dalmatians without these spots. After giving away 6% of their Dalmatians, how many do the Charlestons have left?

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general 11 months ago 5003

Mia and Luke made 85 origami together. Mia made 4 pieces of origami every 3 minutes. Luke made 3 pieces of origami every 4 minutes, but Luke spent 5 minutes more than Mia. How many pieces of origami did Mia make?

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general 11 months ago 7381

Estimate the area under the curve f(x) = x2 from x = 1 to x = 5 by using four inscribed (under the curve) rectangles. Answer to the nearest integer.

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general 11 months ago 6550

Ethan is itemizing deductions on his federal income tax return and had $4200 in medical expenses last year. If his AGI was $39,000, and if medical expenses are deductible to the extent that they exceed 7.5% of a taxpayer's AGI, how much can Ethan deduct for medical expenses?

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general 11 months ago 4103

An engineer sketches a design for a flashlight that uses a mirror in the shape of a parabola to maximize the output of the light. The function representing the mirror is graphed on the left. Which function models the situation? f(x) = (x – 6)2 + 2 f(x) = –(x – 0)2 + 20 f(x) = 3(x – 6)2 + 2 f(x) = –3(x – 0)2 + 20

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general 11 months ago 5894

A bottle of the medicine contains 0.5 kilograms of the medicine. One dose of the medicine is 20 grams for a child and 45 grams for an adult. The number of grams used can be calculated with the formula 20C + 45A, where A is the number of adult doses and C is the number of child doses. If a medical assistant needs to give a dose of the medicine to 12 adults and 10 children, will there be enough medicine in the bottle? If not, how many more grams will be needed?

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general 11 months ago 9059

Which choices correctly describe reflections in the diagram? Check all that apply.A.The red triangle A is reflected across the x-axis onto triangle B.B.The red triangle A is reflected across the y-axis onto triangle D.C.The blue triangle D is reflected across the x-axis onto triangle C.D.The blue triangle D is reflected across the line y = x onto triangle B.E.The green triangle C is reflected across the line y = –x onto triangle A.Check all that APPLY

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general 11 months ago 7320

select the ordered pair that represents a solution to each function below.1: f(x)= x^2+5a: (-2,-17)b: (-2,1)c: (-2,8)d: (-2,4)e: (-2,-1)f: (-2,9)2: f(x)= -x +6(same options for answers)3: f(x)= x=64: f(x)= x^3-95: f(x)= -x^3-9

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general 11 months ago 1881

You and a friend both work two different jobs. The system of linear equations represents the total earnings for xx hours worked at the first job and yy hours worked at the second job. Your friend earns twice as much as you.One week, both of you work 4 hours at the first job. How many hours do you and your friend work at the second job?You and your friend work _____ hour(s) at the second job.( I may have accidentally submitted this already)

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general 11 months ago 7325

which of the following appear in the diagram below?? check all that apply

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general 11 months ago 4709

Of the following, which is the solution to 2x2 − 5x = −8? the quantity negative five plus or minus i times the square root of thirty nine over four the quantity five plus or minus i times the square root of thirty nine over four the quantity five plus or minus i times the square root of thirty nine over two the quantity negative five plus or minus i times the square root of one hundred ninety two over two

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general 11 months ago 3016

Aaron put $1000 in an account that pays 10% interest compounded quarterly he leaves it in the account for six months estimate how much interest he earns

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general 11 months ago 3314

Ryan and Scott are each studying a square pyramid.Which statement best describes the two pyramids? A.Both pyramids have the same total surface area, but the areas of the lateral faces and the areas of the bases are different in each pyramid.B.Both pyramids have the same total surface area, and the areas of the lateral faces and the areas of the bases are the same in each pyramid.C.Ryan’s pyramid has a greater surface area.D.Scott’s pyramid has a greater surface area.

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general 11 months ago 8811

The diagram shows two different nature trails in a state park. The solid line shows the Dogwood Trail. The dashed line shows the Elm Trail.Which of the following statements are true about the lengths of the trails? Check all that apply.1.The total length of the Dogwood Trail is 16 kilometers.2.The total length of the Dogwood Trail is 24 kilometers.3.The Elm Trail is longer than the Dogwood Trail.4.The difference between the lengths of the trails is 2 kilometers.5.The difference between the lengths of the trails is 6 kilometers.

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general 11 months ago 3093

The graphs show the distances traveled by two bikers riding at constant rates. Drag to the table the unit rate that matches each graph.

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general 11 months ago 5601

What is true about the rotation of the shaded triangle to the position of the unshaded triangle? Check all that apply.1.The rotation uses the rule (x, y)g(–x, –y).2.The rotation uses the rule (x, y)g(y, –x).3.The rotation is 90° clockwise about the origin.4.The rotation is 180° about the origin.5.The rotation uses the rule (x, y)g(–y, x).6.The rotation is 90° counterclockwise about the origin.

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general 11 months ago 3725

Find the equation of a circle with a center at (7, 2) and a point on the circle at (-2, -5).

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general 11 months ago 6624

Suppose that the area between a pair of concentric circles is 49pi. Find the length of a chord in the larger circle that is tangent to the smaller circle.

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general 11 months ago 9458

Which expression will equal a rational product even though it is multiplying an irrational number times another irrational number?

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general 11 months ago 7391

Cobalt-60 has an annual decay rate of about 13%.How many grams of a 300 g sample will remain after 20 years?Round the answer to two decimal places.A. 0.06 gB. 9.38 gC. 18.51 gD. 37.50 g

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general 11 months ago 1830