All Questions ⁺⁰230464 Questions

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274

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Coordinates

Let line 1 be the graph of 5x+8y=-9. Line 2 is perpendicular to line 1 and passes through the point (10,-10). If line 2 is the graph of the equation y=mx+b, then find m+b.

Guest Nov 7, 2021

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151

0

Coordinates

A line with slope of -3 intersects the positive x-axis at A and the positive y-axis at B. A second line intersects the x-axis at (8,0) and the y-axis at D. The lines intersect at (4,4) . What is the area of the shaded quadrilateral read more ..

Guest Nov 7, 2021

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278

1

If he invests the $4086 in an account that earns 5.9% annually, compounded monthly, how long will it take Donnie to accumulate the $4962?

Donnie is saving up money for a down payment on a motorcycle. He currently has $4086, but knows he can get a loan at a lower interest rate if he can put down $4962. If he invests the $4086 in an account that earns 5.9% annually, compounded monthly, how read more ..

Guest Nov 7, 2021

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171

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Quadratic

Let a be a real number for which there exists a unique value of b such that the quadratic equation x^2 + 2bx + (a - 2b) = 0 has one real solution. Find a.

Guest Nov 7, 2021

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396

4

+216

Can someone please help

What is the constant term of the expansion of ?
Can someone please help me i expanded it but I don't know which one is the constant term

When I expanded it I got this read more ..

Jmaster10 Nov 7, 2021

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246

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HELP WITH PATTERN

At 12:01, a virus is placed in a cell of a grid of unit equilateral triangles. Every minute, each cell with exactly one adjacent infected cell simultaneously becomes infected with a copy of the virus. (Two cells are adjacent if they share an edge.) The read more ..

Guest Nov 7, 2021

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159

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Functions

Let f(x)=3x+4 and $g(x)=2x-8$. If h(x)=f(g(x)), then what is the inverse of h(x)?

Guest Nov 7, 2021

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331

2

Algebra

There are real numbers $A$ and $B$ such that \[\frac{5x+16}{x^2-7x+10}=\frac{A}{x-2}+\frac{B}{x-5}.\]Find $A+B$.

Guest Nov 7, 2021

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210

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Geometry

In the diagram,angle U = 30, arc XY is 170, and arc VW is 130. Find arc WY, in degrees.

Guest Nov 7, 2021

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268

2

Help

The sum of two numbers is 235, and the difference of the same two numbers is 41. Find these numbers.

Guest Nov 7, 2021

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177

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Geometry

In the diagram, K, O and M are the centers of the three semi-circles. OC = 32 and CB = 38,
What is the area of the semi-circle with center k?

read more ..

Guest Nov 7, 2021

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165

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Partial Fractions

Enter (A,B,C,D) in order below if A, B, C, and D are the coefficients of the partial fractions expansion of
(x^3 + x^2 - 2x + 5)/((x^2 - 1)(x^2 - 3x + 2)) = A/(x - 1) + B/(x + 2) + C/(x + 1) + D/(x + 1)^2.

Guest Nov 7, 2021

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344

2

Help!

simultaneously depart Station A and Station B. Station A and Station B are 252.5 miles apart from each other. Train A is moving at 124.7mph towards Station B, and Train B is moving at 253.5mph towards station A. If both trains departed at 10:00AM and it read more ..

Guest Nov 7, 2021

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259

1

I need help with the answer

Jane's salary is increased by 2% to £37638
How much was her salary before the rise?

Guest Nov 7, 2021

+1

229

0

+5

A, O and B lie on a straight line segment where a = 20, b = 48 and c = 36. State the value of the angles: i) ∠

A, O and B lie on a straight line segment where a = 20°, b = 48° and c = 36°. State the value of the angles: i) ∠ A O B ii) acute ∠ Z O B iii) acute ∠ X O Y iv) acute ∠ read more ..

njoasshile Nov 7, 2021

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185

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HELP!!!

How do I figure out the correlation coefficient easily enough for a year 11 student who's not smart

Guest Nov 7, 2021

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420

1

Algebra problem

How many different values can $\lfloor x \rfloor + \lfloor 2x \rfloor + \lfloor 3x \rfloor +\lfloor 4x \rfloor + \lfloor 5x \rfloor + \lfloor 6x \rfloor$ take for $0 \leq x \leq 1$?

How many different values can read more ..

Guest Nov 7, 2021

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164

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geometry

Two circles, centered at A and B are externally tangent to each other, and tangent to a line L. A third circle, centered at C is externally tangent to the first two circles, and the line L. If the radii of circle A and circle B are 9 and 25, respectively, read more ..

Guest Nov 7, 2021

+1

364

4

help Algebra

Find the smallest distance between the origin and a point on the parabola y = x^2 - 2.

Guest Nov 7, 2021

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352

2

Inequality problem

Solve the following inequality.
45 < 9(x + 3) < 153

Guest Nov 7, 2021

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357

5

Help me melody

Tom and Peter have some money. The price of game cartridge is $45. If Tom buys this game cartridge, the ratio of his money left to that of Peter's will be 1:3. However, if Peter buys the game cartridge, the ratio of his money left to that of Tom's is 3:5. read more ..

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Guest Nov 7, 2021

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292

1

Partial fractions

Enter (A,B,C) in order below if A, B, and C are the coefficients of the partial fractions expansion of (2x^2 + 3x - 5)/(x(x^2 - 1)) = A/x + B/(x - 1) + C/(x + 1).

Guest Nov 7, 2021

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312

1

Coordinates

What is the equation of the line that is parallel to the line y -1 =4(x+3) and passes through the point (4,23)

Guest Nov 7, 2021

Nov 6, 2021

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221

1

help coordinates

Points A, B, and C are given in the coordinate plane. There exists a point Q and a constant k such that for any point P,
PA^2 + PB^2 + PC^2 = 3*PQ^2 + k.

If A = (4,-1), B = (8,-2), and C = (1,-11), then find the constant read more ..

Guest Nov 6, 2021

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