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MAXImum [283]
2 years ago
8

Suppose the system of linear equations has no solution. Which is NOT a possible value of the constant for the second equation?

Mathematics
1 answer:
Tom [10]2 years ago
4 0

Answer:

  A)  5

Step-by-step explanation:

The coefficients of the second equation are 1/3 of those of the first equation. If the constant of the second equation is also 1/3 of the constant of the first equation, then the equations are <em>dependent</em>, and will have an infinite number of solutions.

The constant must be something other than 1/3·15 = 5 to make the equations <em>inconsistent</em>, having no solutions.

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Please help! 20 points thanks :)
Reika [66]

Answer:

-5

Step-by-step explanation:

The equation for slope is:

Slope=\frac{y_2-y_1}{x_2-x_1}

We can plug in the given coordinates into the equation:

Slope=\frac{-2-3}{3-2}=\frac{-5}{1}=-5

5 0
2 years ago
A and B are complementary. If B = 26°, what is the measure of A?
Talja [164]

Answer:

64°

Step-by-step explanation:

      When angles are complementary, they can be added together to equal 90°.

90° - 26° = 64°

           The measure of angle A is 64°.

8 0
2 years ago
SOMEONE HELP ME I DONT UNDERSTAND THIS
lord [1]

Answer:

Pretty sure there's 90 tens.

6 0
3 years ago
Read 2 more answers
Answer the following questions about the sphere whose equation is given by x2+y2+z2−8x+4y=−4. 1. Find the radius of the sphere.
Anna [14]

Answer:

we have (a,b,c)=(4,-2,0) and R=4 (radius)

Step-by-step explanation:

since

x²+y²+z²−8x+4y=−4

we have to complete the squares to finish with a equation of the form

(x-a)²+(y-b)²+(z-c)²=R²

that is the equation of a sphere of radius R and centre in (a,b,c)

thus

x²+y²+z²−8x+4y=−4

x²+y²+z²−8x+4y +4 = 0

x²+y²+z²−8x+4y +4 +16-16 =0

(x²−8x + 16) + (y² + 4y + 4 ) + (z²) -16 = 0

(x-4)² + (y+2)² + z² = 16

(x-4)² + (y-(-2))² + (z-0)² = 4²

thus we have a=4 , b= -2 , c= 0 and R=4

8 0
2 years ago
Find the area and the circumference of a circle with diameter 9 yards using the value 3.14 for pi
Ray Of Light [21]
Area of circle = pi r^, (r)radius is half the diameter so 9÷2=4.5 so in this scenario it would be 3.14×4.5^
3.14×4.5×4.5=63.6

circumference of circle= diameter×pi (3.14)
so 9×3.14=28.3
5 0
3 years ago
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