MATHEMATICS HIGH SCHOOL

Solve for x.
12 = x^2 + 6x

Answers

Answer 1
Answer:

Answer: x= 1.6 and -7.6

Step-by-step explanation:

Given the equation 12 = x²+6x

Firstly, we will equate the equation to zero by taking 12 to other side to give;

x²+6x-12 = 0

Using the general formula to solve

If ax²+bx+c=0

x = -b+-√b²-4ac/2a

From the equation given

a = 1 b =6, c=-12

x = -6+-√6²-4(1)(-12)/2(1)

x = -6+-√37+48/2

x = -6+-√85/2

x = -6+-9.2/2

x = -6+9.2/2 and -6-9.2/2

x = 3.2/2 and -15.2/2

x = 1.6 and -7.6

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The ratio of the weight of an object on Planet A to the weight of the same object on Planet B is 100 to 3. If an elephant weighs 3800 pounds on Planet A, find the elephants weight on Planet B

Answers

Answer:

the elephants weight on Planet B is 114.first you divide 3800 by 100 it gives you 38 then multiply 38 times 3 it gives you 114.the answer of the question is 114. you have to use unit rate or the whole enchilada method.

Step-by-step explanation:

A person drove at 24 miles per hour for 4 hours, then at 20 miles per hour for 2 hours. How far did the person drive in all?

Answers

the person traveled 136 miles
24+20=44
20+20=40÷4=44

Which of the following is equivalent to (cd)5?

c5d
cd5
c5d5
5cd

Answers

If you would like to find the equivalent expression to (c*d)^5, you can do this using the following steps:

(c*d)^5 = c^5*d^5 = c^5d^5

The correct result would be c^5d^5.

The correct result would be c^5d^5.

the third option C, just took the test.

A=bh (isolate h) what is the Area Premitmetrr and height

Answers

Answer:

h = A / b

Step-by-step explanation:

A represents the area of the rectangle or parallelogram.

b represents the length of one of the sides (base) of the rectangle or parallelogram.

h represents the height, which is the perpendicular distance between the base and the opposite side.

So, if you know the values of A (area) and b (base), you can use this formula to calculate the height (h).

Henry can build 2 birdhouses in 30 minutes. how many birdhouses can he build in 4 hours?

Answers

2 birdhouses in 30 minutes = 4 birdhouses per hr.

for 4 hrs......4 x 4 = 16 birdhouses in 4 hrs

What is the next logical statement in the proof below?given: M is the midpoint of AB
prove:2(AM) = AB
a) AM+AM=AB
b) AM=AB-MB
c) AB=AM+MB
d) M (A+B)=AB

Answers

First, we have write down, in the language of mathematics that M is the midpoint of AB. This means that AB will have two parts, each of them ending with (or beginning with) M. This is how we do it: 

c) AB=AM+MB
The correct answer is AM+AM=AB I know what test this is.
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