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2 years ago

Which graph shows the system 1 x² + y = 2 x² + y² = 9

Mathematics

1 answer:

BartSMP [9]2 years ago

5 0

Answer:

The graph of the system in the attached figure

Step-by-step explanation:

we have

$x^{2}+y=2$

isolate the variable y

$y=-x^{2}+2$ ----> equation A

This is the equation of a vertical parabola open down (because the leading coefficient is negative)

The vertex represent a maximum

the vertex is the point (0,2)

$x^{2} +y^{2}=9$ ---> equation B

This is the equation of a circle centered at (0,0) with radius 3 units

The solution of the system of equations is the intersection points both graphs

using a graphing tool

The solutions are the points (-2.05,-2.19) and (2.05,-2.19)

see the attached figure

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13) -4= -b -1/3b and -23/3= 1/2a + 5/3a

Sergeeva-Olga [200]

-4=-1b-(1/3)b

-4=-(4/3)b

-4/-(4/3)=b

b=3

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

(1/2)3+(5/3)2

3/6+10/6=13/6

-23/3=13/6a

(-23/3)/(13/6)=a

a=-46/13

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2 years ago

14 over 15 rounded to the nearest tenth

NARA [144]

Answer:

0.9

Step-by-step explanation:

14/15 = 0.933333333 IF:

1. You first change it into a decimal by dividing the numerator by the denominator.

14 ÷ 15

2. You will get a recurring decimal.

0.933333333

3. The first digit after the decimal is in the position of the 'tenths'

0.9

4. You should use only two digits after the decimal to calculate

0.93

5. Since the number 3 is less than five, it will change into a zero and get eliminated.

∴ The answer will be = 0.9

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2 years ago

A 26' long painting is how many yards?

guapka [62]

It's 0.72 yards.
1 = 0.02
so 26*0.02=0.72

8 0

3 years ago

Read 2 more answers

It's always a good idea to check your solutions to any equation in the original equation. When solving an absolute value equatio

Andru [333]

You should must check for an extraneous solution when the variable appears both inside and outside the absolute value expression

<h3>What is an extraneous solution?</h3>

An extraneous solution is a solution that in obtained after completely solving an equation but it does not work in the original given equation.

You should must check for an extraneous solution when the variable appears both inside and outside the absolute value expression (Option D).

Learn more about extraneous solution: brainly.com/question/14054707

#SPJ1

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1 year ago

Given csc A= 37/12 and that angle A is in Quadrant I, find the exact value of sec A in

vredina [299]

Answer:

Step-by-step explanation:

Below is the pic of how this would be set up in order to determine what it is you are looking for. The angle is set in QI, and since csc A is the reciprocal of sin, the ratio is hypotenuse over side opposite. Solve for the missing side using Pythagorean's Theorem:

$37^2=12^2+b^2$ and

1369 = 144 + b² and

1225 = b² so

b = 35

The sec ratio is the reciprocal of cos, so if cos is adjacent over hypotenuse, the sec is hypotenuse over adjacent, which is 37/35

7 0

2 years ago