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elixir [45]
3 years ago
12

A textbook costs $58 and sells for $70. Find the rate of markup based on the selling price.

Mathematics
1 answer:
notka56 [123]3 years ago
7 0
58r=70

r=35/29

r≈1.2069

So the rate was about 1.21 or if you prefer about 20.7%
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Bianca and yoko work together to mow the lawn. suppose yoko mow 5/15 of the lawn and bianca m ows 2/5 of the lawn. how much lawn
xz_007 [3.2K]
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2 years ago
Suppose ABC is a right triangle with sides​ a, b, and c and right angle at C. Find the unknown side length using the Pythagorean
Leno4ka [110]

Answer:

a = \sqrt{7}

Step-by-step explanation:

I think your question is missed of key information, allow me to add in and hope it will fit the original one.:

<em>Suppose ABC is a right triangle with sides​ a, b, and c and right angle at C. Find the unknown side length using the Pythagorean theorem and then find the values of the six trigonometric functions for angle B. when b=3 and c=4</em>.

My answer:

We will Pythagoras theorem, which states that the sum of squares of two legs of a right triangle is equal to the square of the hypotenuse of right triangle. Because the question says that ABC is a right triangle.

a^2+b^2=c^2

Given that: b=3 and c=4

a^2+3^2=4^2a^2+9=16a^2+9-9=16-9a^2=7

so a = \sqrt{7}

We know that tangent relates opposite side of a right triangle with adjacent side.

\text{tan}(B)=\frac{a}{b}\\\text{tan}(B)=\frac{\sqrt{7}}{3}

Please have a look at the attached photos.

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3 years ago
GIVING BRAINLIEST!!!!!!PLS HELP :((
dexar [7]

Answer:

Circle A - 1 right angle

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Step-by-step explanation:

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strojnjashka [21]

Answer:

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Step-by-step explanation:

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The smallest one is  50 .
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