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3 years ago

20 points to whoever answers this first

Mathematics

2 answers:

tatyana61 [14]3 years ago

7 0

71 would be your answer.

taurus [48]3 years ago

4 0

Answer:
71˚

Explanation:
To find the <em>mean</em> of a sum of numbers, you add all the numbers together, and then divide by how many numbers there are.
71 + 72 + 68 + 67 + 74 + 72 + 73 = 497
497 ÷ 7 = 71

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3 years ago

Use graphing to find the solution of the system of equations. -x^2+y=1, -x+y=2

vladimir2022 [97]

ANSWER

$x=-0.62$ or $x=1.62$

EXPLANATION

For $-x^2+y=1$

We make y the subject to obtain,

$y=x^2+1$

We can easily graph this function, because we just have to transform the graph of $y=x^2$ by shifting the intercept up to $1$ .

As for the straight line, $-x+y=2$ ,

We find the intercepts as follows,

When $y=0,x=-2$ .

When $x=0,y=2$ .

We plot the points $(-2,0)$ and

$(0,2)$ .

We now draw the two graphs on the same graph sheet. The intersection of the two graphs gives the solution to be

$x=-0.62$ or $x=1.62$

See graph

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3 years ago

Can someone please help me solve this? and explain how you got the answer? Thank you

Tatiana [17]

36.9
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2 years ago

225 g flour

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2 years ago

A train 100 m long crosses a pole in 5 seconds.Find the speed of the train in kilometre per hour.

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Answer:

$\sf72 km/h$