07/21/21

Math help I’m failing summer

j(x)= 6x^4+2x^3-4x+4; find j(2)
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07/21/21

Math help needed really confused

Given f(x)=6-x and j(x)=x^2+4, find each of the following:(f*j)(2)=(j-f)(x)=(fj)(x)=
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07/21/21

Math help needed please

If g(x)= 3x-5 if x < or = to 2 G(x)= 4x+2 if x >2 find g(2)
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07/21/21

I NEED YOUR HELP ASAP!! Grade 11 applied math question in quadratics!!!
Question: a parabola has a vertex of (4,8) and opens downward. Write two possible equations of quadratic functions in vertex form such that the parabola has exactly two zeros. Find the zeroes for... more
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07/21/21

I NEED YOUR HELP ASAP!! Grade 11 applied math question in quadratics!!!!
Question:a diver is preparing for the 2024 Olympics by practicing her dives from a platform. The perfect dive can be represented in the format of:h(t) = -6.7t^2 + 5t + 7.5Where (h) represents... more
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07/21/21

The perimeter of a rectangle is 60 feet. Its length is three less than twice its width. Find the dimensions and area of this rectangle.
The perimeter of a rectangle is 60 feet. Its length is three less than twice its width. Find the dimensions and area of this rectangle.
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07/21/21

College Algebra
If the voltage V in an electrical circuit is held constant, the current 1 is inversely proportional to the resistance R. If the current is 280 milliamperes when the resistance is 3 ohms, find the... more
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07/21/21

A question about (Solving a tax rate or interest rate problem using a system of linear equations)
Last year, Shen had $20,000 to invest. He invested some of it in an account that paid 9% simple interest per year, and he invested the rest in an account that paid 7% simple interest per year.... more
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07/21/21

A question about (Solving a distance, rate, time problem using a system of linear equations)
Two buses leave a station at the same time and travel in opposite directions. One bus travels 13 mih faster than the other. If the two buses are 945 miles apart after 7 hours, what is the rate of... more
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07/21/21

explain how you could use mental math to figure out how much a 20% tip would be for a total restaurant bill of $22.50
explain how you could use mental math to figure out how much a 20% tip would be for a total restaurant bill of $22.50
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07/21/21

Use a proportion table to solve. 18 is what percent of 40?

Use a proportion table to solve. 18 is what percent of 40?
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07/21/21

Earthquake magnitude
Could someone please help me with this question?An earthquake has magnitude 6.7 and its aftershock has magnitude 4.7 on the base 10 logarithmic Richter scale. How much larger is the first earthquake?
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07/21/21

i need help with this question

Sue and Frank plan to buy their son a truck as a graduation present. They can afford to spend no more than $15 000. A dealership has a sale on a truck for 15% off the listed price of $17 500. Can... more
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07/21/21

Find the coordinates of the point on a circle centered at the origin with radius 9 corresponding to an angle of 135∘.
This seems fairly simple but I am thinking about it too hard, I am trying to learn the process.
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07/21/21

Trigonometry Word Problem
You are hiking near a big crater. While standing at point 𝐴, you measure a right angle between points 𝐵 and 𝐶. You then walk to 𝐵, which is on the same side of the crater as 𝐴. From 𝐵, there is a... more
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07/21/21

Suppose 𝜃∘ and 𝜙 are in the first quadrant and that sin(𝜃∘)=3/17 and cos(𝜙)=2/13. Then, determine the following
Determine sin(𝜋/2−𝜙) and cos(90∘−𝜃∘). I tried to figure this out but the answer will not let me put in any kind of decimal points so I am not sure how to move forward.
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07/21/21

Original amount

Jessica was preparing for her birthday party. She spent $3 less than 3/5 of her money on soft drink and $3 more than 3/4 of her remaining money on food. She still had $3 left. How much money did... more
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07/21/21

Dimensions of Rectangle

Find the dimensions of the rectangle of maximum area that can be inscribed in a circle of radius r=9.What are the dimensions of the rectangle?
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07/21/21

Dimensions and Maximal Volume
Find the dimension of a box with a square base with surface area 20 and the maximal volume.What is the side of the base, height, and maximum volume?
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07/21/21

Solve the system of linear equations by eliminating a variable

solve the system of linear equations by eliminating a variablex-y=-73x+y=-5what ordered pair represents the solution to the system of equations?
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07/21/21

Divide (5x2 + 16x + 12) ÷ (x + 2)
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07/21/21

Divide (2x5 – 5x4 – 3x2 – 6x – 23) ÷ (x – 3)
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07/21/21

Find the quotient using long division (6x2+ 8x – 2) ÷ (3x + 1)
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07/20/21

Can someone please help me with this Math problem? I’m trying to help my younger brother with his homework.
The X-axis is a line of symmetry for a triangle. The coordinates of two of its vertices are (1, -1) and (7,0). (A) (-7,0)(B) (1,1)(C) (-1,-1)(D) (1,-7)My brother got (A) and I got (D), are either... more
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07/20/21

Calculus Question. Please anwser!
Many people argue that there should be four types of conics instead of three. How many types of conics do you think there should be? Support your claim. Refer to the diagram below to help you.
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