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3 years ago

What’s the answer for -3(r-4)_>0

Mathematics

1 answer:

Zigmanuir [339]3 years ago

8 0

Answer:

r<4

Step-by-step explanation:

-3(r-4)>0 step 1: distribute the -3

-3r+12>0 explain: -3 times r =-3r, -3 times -4 = 12

next, isolate the -3r by putting 12 on the other side

-3r+12>0 subtract 12 from both sides

-3r>-12 now, divide both sides by -3 (you have to flip the > because you are dividing by a negative) -12 divided by -3 is 4

so you should end up with r<4

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The equation x^2/121 + y^2/1. what points are the vertices of the eclipse

Alla [95]

Answer:

$(-11,0)$ and $(11,0)$ .

Step-by-step explanation:

The given ellipse has the equation:

$\frac{x^2}{121}+\frac{y^2}{1}=1$

This can be rewritten as

$\frac{x^2}{11^2}+\frac{y^2}{1^2}=1$

We compare this to the general equation of the ellipse:

$\frac{x^2}{a^2}+\frac{y^2}{b^2}=1$

We have $a=11$ and $b=1$

The vertices of this ellipse are at $(-a,0)$ and $(+a,0)$ .

Therefore the vertices of this ellipse are at $(-11,0)$ and $(11,0)$ .

The correct choice is A.

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3 years ago

Simplify xz³ × 4x⁴z⁵

Inessa [10]

Answer:

4x⁵z8

Step-by-step explanation:

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3 years ago

The solution is (1,-5)

lesantik [10]

<h2>False</h2>

<h2>the solution is ( - 5 , 1 )</h2>

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2 years ago

Read 2 more answers

What is the value of x and y?

crimeas [40]

Answer:

C. x = 8 , y = 40

Step-by-step explanation:

since this is an Isosceles triangle 5x = 40° and x = 8

The sum of interior angles in a triangle is equal to 180°

40° + 5x + 2y + 20 = 180° add like terms

5x + 2y = 120

40 + 2y = 120 ➡ 2y = 80 and y = 40

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4 years ago

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The wavelength of violet light is 4.0 x 10−7 m. The wavelength of red light is 6.5 x 10−7 m. How much longer is the wavelength o

photoshop1234 [79]

Answer:

Step-by-step explanation:

We can substract the wavength of the violet light to the wavelength of the red light:

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3 years ago