3 years ago

7. A contractor that builds houses uses the following expression to estimate bids for his customers, based on

Mathematics

1 answer:

Gelneren [198K]3 years ago

3 0

Step by step equation

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In circle o, mzaob=41. what is maxb?

s2008m [1.1K]

Answer:

82+41=awnser

Step-by-step explanation:

82+41= smart

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2 years ago

Courier charges for packages to a certain destination are 65 cents for the first 250 grams and 10 cents for each additional 100

SpyIntel [72]

Well, drop 65 cents (the first 250 grams) to get 90 remaining cents. These are 900 additional grams. So, the mass is 0.25+0.9=1.15 kg.

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3 years ago

What is f(x) = 7x2 + 42x written in vertex form?

amid [387]

Answer:

$\boxed{\boxed{y = 7(x+3)^2-63}}$

Step-by-step explanation:

The general vertex form of parabola is,

$y=a(x-h)+k$

where,

(h, k) is the vertex of the parabola.

The given function is,

$\Rightarrow f(x) = 7x^2 + 42x$

$\Rightarrow y = 7x^2 + 42x$

$\Rightarrow y = 7(x^2 + 6x)$

$\Rightarrow y = 7(x^2 + 2\cdot x\cdot 3)$

$\Rightarrow y = 7(x^2 + 2\cdot x\cdot 3+3^3-3^2)$

$\Rightarrow y = 7(x^2 + 2\cdot x\cdot 3+3^3)-7\cdot 3^2$

$\Rightarrow y = 7(x+3)^2-7\cdot 9$

$\Rightarrow y = 7(x+3)^2-63$

This is vertex form the given function.

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3 years ago

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Trigonometry Identities help please

sesenic [268]

theta is in the fourth quadrant where the cosine is positive.

the third side in the triangle = sqrt (4 - 2) = sqrt2

So sin theta = -sqrt2/2 = Second choice (negative because sine is negative in 4th quadrant)

tan theta = - sqrt2 / sqrt2 = -1

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3 years ago

For the orchestra concert, the orchestra director has asked that everyone wear either black pants or a black skirt. Five times a

asambeis [7]

Answer:

Step-by-step explanation: 5x10 =50+10 =60 the number of students

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3 years ago

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