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BARSIC [14]
2 years ago
9

Emily has a road map with a key that shows an inch on the map equals 3 miles of actual distance. She will drive on two roads to

get to the beach. One road is 4 inches long on the map. The other road is 4 inches long.
What is the actual distance Emily will drive to the beach? Complete the rule you used to find the actual distance.
Mathematics
1 answer:
77julia77 [94]2 years ago
4 0

Answer:x=60

Step-by-step explanation:

the actual distance which Emily will drive is 60 miles, the rule we used was multiplying by 5 to find the actual distance

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Work out an equation of the straight line with gradient 3 that passes through the point with coordinates (2, 4).
Gnom [1K]

Answer:

The answer is

\huge \boxed{y = 3x - 10}

Step-by-step explanation:

To find an equation of a line given the slope and a point we use the formula

y -  y_1 = m(x -  x_1)

where

m is the slope

( x1 , y1) is the point

From the question the point is (2, 4) and the slope is 3

The equation of the line is

y - 4 = 3(x - 2) \\ y + 4 = 3x - 6 \\ y = 3x - 6 - 4

We have the final answer as

y = 3x - 10

Hope this helps you

3 0
3 years ago
Name the postulate or theorem you can use to prove
gladu [14]

AAS

A for <SUR and <TVR

A for <SRU and <TRV

S for SU and TV

6 0
3 years ago
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I need help please and thank you ( show your work please)
Bas_tet [7]

Answer:

y = 2x

Step-by-step explanation:

Use Rise over Run. The rise(up/down) is 2 and the run(sideways) is 1. The slope is going up, not down so the 2 is positive. So, it is positive 2/1, which you can write as 2.

7 0
2 years ago
<img src="https://tex.z-dn.net/?f=f%28x%29%20%3D%20%E2%88%923x2%E2%88%9211x%2B7" id="TexFormula1" title="f(x) = &minus;3x2&minus
bixtya [17]

Answer:

x=   \frac{ - 11 +  \sqrt{205} }{6}  \:  \:  \:  \:  \: or \:  \:  \:  \:  \\x  =  \frac{ - 11 -  \sqrt{205} }{6}

Step-by-step explanation:

- 3x {}^{2}  - 11x + 7 = 0 \\ 3x {}^{2}  + 11x - 7 = 0

here,

a = 3 \\ b = 11 \\ c =  - 7

now,

D = b {}^{2}  - 4ac \\  = (11) {}^{2}  - 4(3)( - 7) \\  = 121 + 84 \\  = 205  > 0 \\

so,

x =  \frac{ - b +  -  \sqrt{b {}^{2}  - 4ac} }{2a}  \\  \\  =   \frac{ - 11 +  -  \sqrt{205} }{2(3)}  \\  =   \frac{ - 11 +  -   \sqrt{205}  }{6}  \\  \\  =   \frac{ - 11 +  \sqrt{205} }{6}  \:  \:  \:  \:  \: or \:  \:  \:  \:  =  \frac{ - 11 -  \sqrt{205} }{6}

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3 years ago
An exponential function can both increase and then decrease at the same time? True or false
DanielleElmas [232]
The answer is true. have a happy day :)
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3 years ago
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