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3 years ago

Simplify: 12(3y + x)

Mathematics

2 answers:

Tanya [424]3 years ago

4 0

Step-by-step explanation:

36y+12x

This is because the 12 on the outside of the bracket will multiply with the terms in the bracket.

Luda [366]3 years ago

3 0

<h2>Answer:</h2><h2>36y + 12x</h2><h2></h2><h2>Hope this helps!!</h2>

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A scuba diver reached a depth of -14 feet (below

Illusion [34]

A) +26ft
if you add -14 by -12 you get -26 the diver needs to come back to sea level so the diver needs to swim up +26 feet

6 0

3 years ago

The general form of a circle is given as x^2+y^2+4x - 12y + 4 = 0. A) What are the coordinates of the center of the circle? B) W

Alex_Xolod [135]

Answer:

center = (-2, 6)

radius = 6

Step-by-step explanation:

<u>Equation of a circle</u>

$(x-a)^2+(y-b)^2=r^2$

(where (a, b) is the center and r is the radius)

Therefore, we need to rewrite the given equation into the standard form of an equation of a circle.

Given equation:

$x^2+y^2+4x-12y+4=0$

Collect like terms and subtract 4 from both sides:

$\implies x^2+4x+y^2-12y=-4$

Complete the square for both variables by adding the square of half of the coefficient of $x$ and $y$ to both sides:

$\implies x^2+4x+\left(\dfrac{4}{2}\right)^2+y^2-12y+\left(\dfrac{-12}{2}\right)^2=-4+\left(\dfrac{4}{2}\right)^2+\left(\dfrac{-12}{2}\right)^2$

$\implies x^2+4x+4+y^2-12y+36=-4+4+36$

Factor both variables:

$\implies (x+2)^2+(y-6)^2=36$

Therefore:

center = (-2, 6)
radius = √36 = 6

7 0

2 years ago

Some one please help me solve this

Umnica [9.8K]

Answer: look at the picture

Step-by-step explanation: Hope this help :D

6 0

3 years ago

How do you solve this problem? 4a-3b+7a=

Inessa05 [86]

In this problem, you combine the like terms...

4a - 3b + 7a

4a and 7a are like terms so you add them together.

4a + 7a = 11a

So, the answer is: 11a - 3b

3 0

3 years ago

What is the mode of this data set: 17, 13, 18, 20, 17, 15, 12<br><br> A. 19<br><br> B. 17

telo118 [61]

<h3>Answer: B. 17</h3>

The mode is the most frequent or most occurring value. The value 17 shows up the most times, at two times, so this is the mode. The value 19 is not even part of the given set of values, so you can immediately cross of choice A.

Side note: it is possible for a set to have more than one mode, and it's also possible to not have a mode at all.

7 0

3 years ago