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3 years ago

What is the solution of the linear-quadratic system of equations? y=x^2+5x−3 y−x=2

Mathematics

2 answers:

vovangra [49]3 years ago

5 0

y = x²+5x−3

y−x = 2 = y = x+2

----------------------------------

x+2 = x²+5x-3

x² + 4x -5 =0

(x+5)(x-1)=0

x ₁= -5

x₂ = 1

-----------------------------------

y₁ = -5+2

y₁ = -3

y₂ = 1+2

y₂ = 3

Vsevolod [243]3 years ago

4 0

Answer:

x = 1, y = 3

x = -5, y = -3

Step-by-step explanation:

Point Form:

(1,3) , (-5, -3)

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3 years ago

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Given f(x)= 3x+(1/4), Find f(1) and f(-1)

Pachacha [2.7K]

Answer:

$f(1)=\frac{13}{4}$

$f(-1) = -\frac{11}{4}$

Step-by-step explanation:

Given f(x) = 3x + (1/4), Find f(1) and f(-1)

$f(x) = 3x + (1/4)$

$f(1) = 3(1) + (1/4)$

$f(1) = 3 + (1/4)$

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Hope this helps!

6 0

3 years ago

The Laduma soccer magazine believes that it has a 52% share of the national male readership market of male magazines. When 3000

FrozenT [24]

The sample in a statistical study is the subset from a population that is selected to meausure the variable.

In this case the population is all the national male readers of male magazines and the sample is the 3000 readers of male magazines that were radomly selected and interviewed.

Answer: the sample is the 3000 readers of male magazines that were radomly selected and interviewed

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4 years ago

A drawer contains black socks and white socks. 40% of the socks are black socks. A number generator simulates randomly selecting

TiliK225 [7]

Answer: The number generator is fair. It picked the approximate percentage of black socks most of the time.

Step-by-step explanation:

A dot plot is a display of dots which represents graphically a data.

Given data of a drawer contains black socks and white socks which 40% are black socks.A number generator simulates randomly selecting 10 socks from the drawer.

The display is representing the number of black socks in each trial of 10 times.

We can see for most of the trial there is no dot ;that is no black socks.

Only in 2nd to 5th trial black socks picked in approximated percentage of 40%.

⇒The number generator is fair. It picked the approximate percentage of black socks most of the time.

4 0

4 years ago

The residents of a city voted on whether to raise property taxes. The ratio of yes votes to no votes was 7 to 4. If there were 6

Nikolay [14]

Answer:

3,500 no votes

Step-by-step explanation:

There were 7 yes votes to every 4 no votes. There were a total of 6,125 yes votes, so set up a proportion to find the number of no votes

Let x represent the number of no votes

7 is to 4 as 6,125 is to x

We get

7/4 = 6,125/x

Now solve for x

First cross multiply

7x = 24,500

Divide both sides by 7 to isolate x..

x = 3,500 no votes

8 0

4 years ago