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3 years ago

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Find the equation whose graph is a parabola with vertex (2,4), vertical axis of symmetry, and contains the point (1,1). Express

your answer in the form ax^2+bx+c
Please don't answer this unless you actually have the correct answer.

1 answer:

gtnhenbr [62]3 years ago

4 0

Answer:

a

Step-by-step explanation:

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WARRIOR [948]

Answer:

no

Step-by-step explanation:

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3 years ago

Are these numbers linear or nonlinear?

Svetllana [295]

Answer:

non linear

Step-by-step explanation:

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3 years ago

Paul has 2/3 as many postcards as Shawn. The number of postcards Shawn has is 4/5 of the number of postcards Tim has. If the thr

ahrayia [7]

Tim has 56 more postcards than Paul.

Step-by-step explanation:

Total postcards boys have = 280

Let,

x = Paul's postcards

y = Shawn's postcards

z = Tim's postcards

According to given statement;

x + y + z = 280 Eqn 1

$x=\frac{2}{3}y$ Eqn 2

$y = \frac{4}{5}z$ Eqn 3

Putting value of y from Eqn 3 in Eqn 2

$x=\frac{2}{3}*\frac{4}{5}z\\\\x=\frac{8}{15}z$ Eqn 4

Putting value of x and y from Eqn 4 and Eqn 3 in Eqn 1

$\frac{8}{15}z+\frac{4}{5}z+z=280\\\\\frac{8z+12z+15z}{15}=280\\\\\frac{35z}{15}=280\\\\$

Multiplying both sides by $\frac{15}{35}$

$\frac{15}{35}*\frac{35}{15}z=280*\frac{15}{35}\\z=120$

Putting z=120 in Eqn 3

$y=\frac{4}{5}*120\\y=96$

Putting y=96 in Eqn 2

$x=\frac{2}{3}*96\\x=64$

Difference of Tim and Paul = 120-64 = 56

Tim has 56 more postcards than Paul.

Keywords: linear equation, substitution method

Learn more about substitution method at:

#LearnwithBrainly

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3 years ago

a recent survey of 300 pet owners that have either cats or dogs reveals that two thirds are dog owners. if there are 20,000 regi

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40,000 Dog owners :3

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3 years ago

Mark purchased a box of 20 sports cards at a garage sale. Five are baseball cards, 8 are football cards, 2 are basketball cards,

dezoksy [38]

Answer:

$P(basketball)=0.1$

Step-by-step explanation:

Probability is defined as the likelihood of an event occurring .

-The number of possible basketball cards is 2

-The total number of cards is 20

#Probability that it will be a basketball card is calculated as:

$P(basketball)=\frac{No \ of \ Basketball \ Successes}{No \ of \ events}\\\\=\frac{2}{20}\\\\=0.1$

Hence, the probability of a basketball card is 0.1

3 0

3 years ago