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2 years ago

Please help i don’t understand

Mathematics

1 answer:

34kurt2 years ago

4 0

Answer:

Step-by-step explanation:

First of, let's make a table for y = cos(x)

(x , y): (0 , 1) (π/2 , 0) (π , -1) (3π/2 , 0) (2π , 1)

Now, making a table for y = 2cos(x) is simple. We just have to multiply all the y-values from the previous table by 2.

(x , y): (0 , 2) (π/2 , 0) (π , -2) (3π/2 , 0) (2π , 2)

Graphing these coordinates, we find that the answer is D.

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Help i will brain listHelp i will brain list

STALIN [3.7K]

Answer:

The associative property will be:

$(14\textbf{.}\frac{1}{7})\frac{2}{5}$

So, Option C is the correct option.

Step-by-step explanation:

We need to write the expression that uses the associative property to make it easier to evaluate: $14(\frac{1}{7}\textbf{.}\frac{2}{5} )$

The associative property of multiplication states that: $a(b\textbf{.}c)=(a\textbf{.}b)c$

So, For the given expression:

$14(\frac{1}{7}\textbf{.}\frac{2}{5} )$

The associative property will be:

$(14\textbf{.}\frac{1}{7})\frac{2}{5}$

So, Option C is the correct option.

4 0

3 years ago

The temperature T in degrees Fahrenheit is (approximately) a linear function of the number C of cricket chirps per minute. Twent

Law Incorporation [45]

Answer:

a) T= 0.25 C+37

b) T= 62°F

Step-by-step explanation:

Here T is a linear function of C

T= mC+b

For each additional chirp C corresponding to an increase in T of 0.25

therefore, m= 0.25

T= 42° F C=20 ( given)

therefore,

a) 42= 0.25×20+b

b= 37

therefore T= 0.25 C+37

b) now C= 100

therefore, T= 0.25×100+37 = 62°F

6 0

4 years ago

Find the area of quadrilateral with vertices at points (3,0)(4,5)(-1,4)(-2,-1)

guapka [62]

Answer: 20

Step-by-step explanation:

Let 's complete our quadrilateral to a rectangle ; and subtract from it the area highlighted in red

$\displaystyle \rm S_{\diamond}=6\cdot 5 =30 \\\\ S_{ABCD}=30-(5:2+5:2+5:2+3:2+1\cdot1)=30-(7,5+1,5+1)=\\\\30-10=20 \\\\ S_{ABCD}=20$

4 0

3 years ago

Read 2 more answers

What are the corresponding factor of 96 out of 2,3,5,7

insens350 [35]

Answer:

the factors of 96 are

Step-by-step explanation:

2 and 3 ( i dont know if its select all that apply choice srry if i didnt get it right)

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3 years ago

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Does this graph represent a function? Why or why not?

Morgarella [4.7K]

Answer:

Option D is the correct answer

Step-by-step explanation:

D. Yes, because it passes the vertical line test.

7 0

3 years ago