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Alex777 [14]
3 years ago
10

Write the equation of a line passing through -1,4 and perpendicular to x+2y=11

Mathematics
1 answer:
Sophie [7]3 years ago
8 0
Y=2x+6
gradient is found from the formula,
\frac{ - 1}{ -  \frac{1}{2} }  = 2
y intercept is found by subbing the values of (-1,4) into the equation y=2x+c
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A scale drawing of an American flag is 10 inches and 6 inches tall the actual flag is 3 feet tall. What is the area of the actua
Natali [406]
15 square feet because the scale is 2 in:1 ft so it would be 10/2 which is 5. This means the flag is 5 ft x 3 ft aka 15 square feet
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Suppose y varies directly with x. If y = -4 when x = 8, what is the equation of direct variation?
tresset_1 [31]

\bf \qquad \qquad \textit{direct proportional variation} \\\\ \textit{\underline{y} varies directly with \underline{x}}\qquad \qquad y=kx\impliedby \begin{array}{llll} k=constant\ of\\ \qquad variation \end{array} \\\\[-0.35em] \rule{34em}{0.25pt}\\\\ \textit{we also know that }~~ \begin{cases} y=-4\\ x=8 \end{cases}\implies -4=k(8)\implies \cfrac{-4}{8}=k\implies -\cfrac{1}{2}=k \\\\[-0.35em] ~\dotfill\\\\ ~\hfill y=-\cfrac{1}{2}x~\hfill

8 0
3 years ago
Read 2 more answers
Use mental math to find the sum. <br><br> 150 + 20 + 25
stiv31 [10]

Answer:


50 + 20 = 70
70 + 25 = 95
150 + 95 = 245

In conclusion, 150 + 20 + 25 equals to a total amount of 215.


Step-by-step explanation:

Have a great rest of your day
#TheWizzer

6 0
1 year ago
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A cross country team is made up of 65% male runners. What fraction of the team is male?
Nikitich [7]
Percentage is the same as a fraction over 100, where the number 100 represents a 'whole'.

Therefore, if 65% are male, it means if there were 100 runners in total, 65 of them would be male, so your fraction would be 65/100.

However, you can simplify this fraction as both 65 and 100 have common factors. So you keep dividing both numbers by its factors until there are no more common factors left. This will leave you with 13/20.

Therefore your final answer is 13/20.
5 0
2 years ago
Solve (using change of base formula) 9^(x-5)=10
Allushta [10]
X=6 1/9 is the answer
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2 years ago
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