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3 years ago

What is the slope and y-intercept of this line?

Mathematics

2 answers:

Reptile [31]3 years ago

3 0

Y = -3x + 9

-3x is the slope and + 9 is the y intercept

Answer is B

Sveta_85 [38]3 years ago

3 0

Slope is -3
Y-intercept is 9

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Operations on Rational and Irrational Numbers

maksim [4K]

Answer:

19/40

Step-by-step explanation:

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3 years ago

Hana buys a new dress for $40. how much does she pay if there is a 7% tax

Rzqust [24]

Answer:

$42.80

Step-by-step explanation:

We can set up an equation to solve this as such

$40*1.07=42.80$

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3 years ago

6cos(20πt-π)+6√3cos(20πt-π\2)

juin [17]

Answer:

Answer is -6t

Step-by-step explanation:

${ \tt{ = (6 \cos(20\pi t) \cos(\pi) + 6\sin(20\pi t) \sin(\pi) ) + 6 \sqrt{3} ( \cos(20\pi t) \cos( \frac{\pi}{2} ) + \sin(20\pi t) \sin( \frac{\pi}{2} )) }} \\ = { \tt{ (- 6t + 0) + (0 + 0)}} \\ = { \tt{ - 6t}}$

Note that π is 180°

5 0

2 years ago

A hawk can travel at a speed of 120 miles per hour. How long would it take to travel 840 miles without stopping?

Scilla [17]

Answer:

7 hours

Step-by-step explanation:

120 x 7 = 840

8 0

2 years ago

Read 2 more answers

Express in the form n:1 give n as a decimal 21:12

Makovka662 [10]

$1.75:1$ which is similar to n:1 where $n=1.75$

Step-by-step explanation:

Here we have to Express in the form n:1 give n as a decimal 21:12 . Let's find out:

Given ratio as 21:12 . Let's convert it into n:1 , where n is decimal

⇒ $21:12$

⇒ $\frac{21}{12}$

⇒ $\frac{3(7)}{3(4)}$

⇒ $\frac{7}{4}$

⇒ $\frac{\frac{7}{4}}{\frac{4}{4}}$ { dividing denominator & numerator by 4 }

⇒ $\frac{\frac{7}{4}}{1}$

⇒ $\frac{1.75}{1}$

⇒ $1.75:1$ which is similar to n:1 where $n=1.75$

7 0

3 years ago