How to solve system of equation by graphing

Mathematics

1 answer:

frosja888 [35]4 years ago

4 0

Answer:

Step-by-step explanation: use the form y=mx+b

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What is the vertex of g(x) = 3x2 − 12x + 7? (−6, −5) (−2, −5) (2, −5) (6, −5)

kupik [55]

(h ,k) —> (2 , –5)

g(x)=3x²-12x+7 —> y= 3(x-2)²-5

y=a(x–h)²+k —> a= 3 , h=2 , k= –5

(h ,k ) —> (2, –5)

I hope I helped you^_^

7 0

3 years ago

Laura has $30 to spend on food for the week. Which inequality represents this? x < 30 x < 30 x > 30 x > 30

Llana [10]

X is less than or equal to $30, she can spend $30, she cant spend more, she can spend less.

The answer should look like X<30 with a line under the less than sign, i hope this helps.

7 0

4 years ago

N/15=21/35 Solve for the missing value in the proportion.

Serhud [2]

Answer:

n=9

Step-by-step explanation:

21/35 has a gcf of 7. so reduce to 3/5

move 3/5 to the left side to get

n/15=-3/5=0

solve as a linear equation.

n/15=-3/5=0 is equivalent to .67*n-0.6=0

which is equal to n=-9

4 0

3 years ago

An F5 tornado is classified as having mean wind speeds greater than 261 mph. In an effort to classify a recent tornado, 20 wind

mina [271]

Complete Question

An F5 tornado is classified as having mean wind speeds greater than 261 mph. In an effort to classify a recent tornado, 20 wind speed measurements were randomly selected from within the path of the tornado. Suppose the mean wind speed for this tornado really is greater than 261 mph with a sample standard Deviation 41.09 mph. Based on the data, if we fined little to no evidence against the null hypothesis that the mean wind speed is 261 mph, we have made _______________.

Answer:

$P-value=0.3322$