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3 years ago

Gin bakes a perfectly circular pizza with a diameter of 10 inches, and he selst for $0.20 per square inch What is the cost for

Mathematics

1 answer:

ArbitrLikvidat [17]3 years ago

7 0

Answer:

$15.70

Step-by-step explanation:

The formula for a circle's area is πr^2 and so the radius is 10/2 or 5. 3.14*5^2 is 78.54. Multiply this by $0.20 to get the total cost of the pizza. The total cost is $15.70.

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A gift basket that contains jars of jam and packages of bread mix costs $45. There are 8 items in the basket. Jars of jam cost $

castortr0y [4]

The equation you had:
6x + 5y = 45

Solve for Y:
5y = (-6x) + 45 divide by 5
y = (-6/5)x + 9
y = -1 1/5x +9

4 0

3 years ago

Read 2 more answers

Verify the identity

Oxana [17]

Answer:

see below

Step-by-step explanation:

sin x 1

------------------- = -----------

sec^2 x - tan ^2 x csc x

Sec = 1/cos and tan = sin/cos

sin x 1

------------------- = -----------

1/ cos ^2 x -sin^2/cos ^2 x csc x

Factor the denominator

sin x 1

------------------- = -----------

(1-sin^2 x)/ cos ^2 x csc x

We know that 1 - sin^2 x = cos ^2

sin x 1

------------------- = -----------

(cos^2 x)/ cos ^2 x csc x

sin x 1

------------------- = -----------

1 csc x

Multiply the top and bottom of the left hand side by 1/ sin x

sin x * 1/ sin x 1

------------------- = -----------

1 * 1 sin x csc x

1 1

------------------- = -----------

1 sin x csc x

We know that 1/sin x = csc

1 1

--------- = -----------

csc (x) csc x

3 0

3 years ago

A 10-foot ladder is to be placed Against the side of the building. The base of the latter must be placed in an angle of 72° With

12345 [234]

Answer:

Distance of foot of ladder from building: 37.2 inches

Distance of top of ladder from building's base: 114 inches

Step-by-step explanation:

Please refer to the figure attached in the answer area.

A right angled triangle $\triangle ABC$ is formed by the ladder with the building where hypotenuse is the length of ladder.

Hypotenuse, AC = 10 foot

Also, we are given that angle made by the base of ladder with the ground is $72^\circ$ .

We have to find AB and BC.

$\angle BAC = 72^\circ$

Using trigonometric functions:

$cos \theta= \dfrac{Base}{Hypotenuse}\\cos 72^\circ= \dfrac{AB}{AC}\\\Rightarrow 0.309 = \dfrac{AB}{AC}\\\Rightarrow AB = 10 \times 0.309\\$\approx$ 3.1 foot\\$\approx$ 37.2 inches$

$sin \theta = \dfrac{Perpendicular}{Hypotenuse}\\\Rightarrow sin72^\circ = \dfrac{BC}{AC}\\\Rightarrow 0.95 = \dfrac{BC}{AC}\\\Rightarrow AB = 10 \times 0.95\\$\approx$ 9.5 foot\\$\approx$ 114 inches$

Distance of foot of ladder from building: 37.2 inches

Distance of top of ladder from building's base: 114 inches

8 0

3 years ago

Can u help me on showing my work and the answer

Serga [27]

Answer:

34/8 or 4 2/8

Step-by-step explanation:

6*8=48 48+5=53 =53/8

> (53/8) - (19/8) = 34/8 or 4 2/8

2*8=16 16+3=19 =19/8

You just change the whole numbers into fractions by multiplying it by the denominator, in this case 8. And then add your sum to the fraction part of the number to be left with just a fraction. To subtract, you just subtract the numerator, if the denominator is the same. In this case, it is, the denominator is 8.

4 0

3 years ago

Please help 15x ^2 −4x−4= ?

oksian1 [2.3K]

<h3>I'll teach you how to solve 15x ^2 −4x−4</h3>

--------------------------------------------------------

15x ^2 −4x−4

Break the expressions into groups:

(15x^2+6x) + (-10x-4)

Factor out 3x from 15x^2+6x:

3x(5x+2)

Factor out -2 from -10x-4:

-2(5x+2)

3x(5x+2) -2(5x+2)

Factor out common term 5x+2:

(5x+2)(3x-2)

Your Answer Is (5x+2)(3x-2)

plz mark me as brainliest :)

3 0

3 years ago