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3 years ago

Please help! Will give brainliest! Don't give a like.

Mathematics

1 answer:

den301095 [7]3 years ago

7 0

9514 1404 393

Answer:

fraction
denominator
product
numerator

Step-by-step explanation:

When you multiply a fraction by a whole number, the denominator in the product is the same as the denominator of the fraction. The numerator in the product is the product of the whole number and the numerator of the fraction.

That's the rule. It is derived from the fact that multiplication indicates repeated addition.

$\dfrac{2}{7}\times3=\dfrac{2}{7}+\dfrac{2}{7}+\dfrac{2}{7}=\dfrac{2+2+2}{7}=\dfrac{2\times3}{7}\qquad\text{for example}$

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If f(x)=ln(sin(2x)), f''(π/4) is equal to

Licemer1 [7]

Use the chain rule to compute the second derivative:

$f(x)=\ln(\sin(2x))$

The first derivative is

$f'(x)=(\ln(\sin(2x)))'=\dfrac{(\sin(2x))'}{\sin(2x)}=\dfrac{\cos(2x)(2x)'}{\sin(2x)}=\dfrac{2\cos(2x)}{\sin(2x)}$

$f'(x)=2\cot(2x)$

Then the second derivative is

$f''(x)=(2\cot(2x))'=-2\csc^2(2x)(2x)'$

$f''(x)=-4\csc^2(2x)$

Then plug in π/4 for x :

$f''\left(\dfrac\pi4\right)=-4\csc^2\left(\dfrac{2\pi}4\right)=-4$

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3 years ago

the dashed triangle is a dilation image of a solid triangle with the center at the organ is the dilation an enlargement or reduc

Kruka [31]

The image is inverted. The figure and the image have a common point. The common point is the center of dilation.

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3 years ago

A box of cereal has a width of 4 inches, and a length of 8 inches and a height of 12 inches. What is the volume of the box, in c

DochEvi [55]

Answer:

384

Step-by-step explanation:

multiply all those numbers together

3 0

2 years ago

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Emily is making a flag with the dimensions shown. What is the minimum amount of material needed for the flag?

ipn [44]

9514 1404 393

Answer:

B 80 square inches

Step-by-step explanation:

The area of a parallelogram has the same formula as the area of a rectangle:

A = bh . . . . . b is the base; h is the height

A = (10 in)(8 in)

A = 80 in²

The minimum amount of material needed is 80 square inches.

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2 years ago

David is buying a cheese wheel priced at $650before tax. The store charges 8% sales tax.

Hitman42 [59]

Answer:

total price is $702

Step-by-step explanation:

650 x 0.08 = $52 tax amount

650 + 52 = $702

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2 years ago