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liberstina [14]

2 years ago

10

I purchase x movie tickets y candy bars and z fountain drinks if each movie cost $11.50 each candy bar costs $2.25 and each foun

tain drink costs $4.75 write a equation for the total cost t in the terms of x, y, and z

1 answer:

ANEK [815]2 years ago

6 0

Answer:

$t = 11.5 \times x + 2.25 \times y + 4.75 \times z$

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KiRa [710]

2(5k+1)

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3 0

2 years ago

if alpha and beta are zeroes of the quadratic polynomial f(x) = x2-x-2 then find a polynomial whose zeroes are 2alpha + 1 and 2b

frosja888 [35]

Answer:

Step-by-step explanation:

Hello, as alpha and beta are zeroes of

$x^2-x-2$

it means that their sum is alpha+beta=1 and their product alpha*beta=-2.

The polynomial whose zeroes are 2 alpha + 1 and 2 beta + 1, means that the sum of its zeroes is 2(alpha+beta)+2=2+2=4

and the product is (2alpha+1)(2beta+1)=4 alpha*beta + 2(alpha+beta) + 1 = 4 * (-2) + 2*(1) +1 = -8 + 2 + 1 = -5. so one of these polynomials is

$\Large \boxed{\sf \bf \ \ x^2-4x-5 \ \ }$

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5 0

3 years ago

6.1 Practice Assignment<br> Find the measure of angle 1?<br> pls help

Svetlanka [38]

Answer:

79 degrees

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7 0

3 years ago

Katie wants to hang a painting in a gallery. The painting and frame must have an area of 45 square feet. The painting is 6 feet

Luda [366]

Each side should increase by 2x (left & right, and up & down) so that to match the condition :
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3 years ago

Q6: Which is the graph of the polar equation r=1/1-sin theta.

AveGali [126]

Answer:

The correct answer is C.

Step-by-step explanation:

The given equation is;

$r=\frac{1}{1-\sin(\theta)}$

This implies that;

$r(1-\sin(\theta)=1$

$r-r\sin(\theta)=1$

Let us write in Cartesian coordinates by substituting;

$r=\sqrt{x^2+y^2} ,y=r\sin(\theta)$

$\sqrt{x^2+y^2}-y=1$

$\sqrt{x^2+y^2}=y+1$

Square both sides;

$(\sqrt{x^2+y^2})^2=(y+1)^2$

This implies that;

$x^2+y^2=y^2+2y+1$

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The correct choice is C

4 0

3 years ago