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2 years ago

There are 2/8 cups of peanuts and 1/4 cup of walnuts. Is there a greater amount of peanuts or walnuts? Explain

Mathematics

1 answer:

aalyn [17]2 years ago

4 0

Answer:

Same amount.

Step-by-step explanation:

2/8 simplified = 1/4

If there is 1.4 walnuts and 1/4 cup of peanuts there is the same amount.

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Dakota makes a salad dressing by combining 6 1/2 fluid ounces of oil and 2 3/8 fluid ounces of vinegar in a jar. She then pours

sergiy2304 [10]

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$\frac{71}{8} - 2 \frac{1}{4} = \\ \frac{71}{8} - \frac{9}{4} = \\ \frac{71}{8} - \frac{18}{8} = \\ \frac{53}{8}$
$\frac{53}{8} = 6 \frac{5}{8}$

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2 years ago

Charlie guesses there are 517 pennies in a jar. The jar actually contains 623 pennies. What is the percent error in Charlie's gu

sammy [17]

0.8 is the answer to the problem.

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2 years ago

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Given that m2(n-l) m=-2 and n=3/4

DanielleElmas [232]

Answer:

when m= -2 and n=3/4.

-2^2.(3/4-1).

-4(-1/4)

=1.

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3 years ago

What is the area of a circle with a diameter of 24 meters (use 3.14 for Pi)?

Zarrin [17]

The area of a circle is represented by the equation:

$A=\pi r^{2}$

We know that the diameter is two times the radius: $d=2r$

So if we know that the diameter of the circle is 24m, we can divide this by two in order to get the radius:

$24m=2r$ --> $r=12m$

So then we can plug this radius in to the equation for the area of a circle:

$A=\pi (12)^{2}$

$A=144\pi$

We are told to use 3.14 as pi, and not pi itself, so let's plug in 3.14 for pi:

$A=3.14(144)$

$A=452.16m^{2}$

Now we know that the area of this circle is 452.16 square meters.

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2 years ago

What are the exact values of sin(2π3radians) and cos(2π3radians)

deff fn [24]

We know that
2π/3 radians-------> convert to degrees-----> 2*180/3---> 120°
120°=90°+30°

Part a) Find <span>sin(2π/3)
</span>sin(2π/3)=sin (90°+30°)
we know that
sin (A+B)=sin A*cos B+cos A*sin B
so
sin (90°+30°)=sin 90*cos 30+cos 90*sin 30
sin 90=1
cos 30=√3/2
cos 90=0
sin 30=1/2
sin (90°+30°)=1*√3/2+0*1/2-----> √3/2

the answer part a) is
sin(2π/3)=√3/2

Part b) Find cos (2π/3)
cos (2π/3)=cos (90°+30°)
we know that
cos (A+B)=cos A*cos B-sin A*sin B
so
cos (90°+30°)=cos 90*cos 30-sin 90*sin 30
sin 90=1
cos 30=√3/2
cos 90=0
sin 30=1/2
cos (90°+30°)=0*√3/2-1*1/2----> -1/2

the answer part b) is
cos (2π/3)=-1/2

8 0

2 years ago