A square has an area of 36cm2. What is the perimeter

Answers

Answer 1

Answer: what times what = 36 like two of the same numbers. then multiply that number by 4 for the number of sides and u get the perimiter. (sry if confusing so ill explain that 6×6=36)

Answer 2

Answer: Square root of 36 =6. Squares have all same side lengths

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A medical company tested a new drug on 100 people for possible sideeffects. This table shows the results.

Answers

Answer:

Eclxplain Answer

AAAAAAAA

Answer:

A p(side effects child)=0.42

P(side effects adult)=0.12

Step-by-step explanation:

Conclusion children have much greater chance of having side effects than adults

create three different drawings showing a number of rectangles and circle on which the ratio of rectangle to circles is 3;1

Answers

Triangle rectangle and ovel I think

I'm not sure how to calculate 12.5% of £168 anyone that can help if so that'd be great!

Answers

percent means parts out of 100

12.5%=12.5/100=0.125

'of' means multiply

12.5% of 168 means
0.125 times 168=21

answer is 21

Based on the type of equations in the system, what is the greatest possible number of solutions (x2+y2=9/9x+2y=16? A=1
B= 2
C= 3
D= 4

Answers

Answer:

`Option B.

Step-by-step explanation:

The given system of equations is

$x^2+y^2=9$

$9x+2y=16$

The graph of first equation is circle and the graph of second equation is a line.

We know that a line can intersect a circle at most 2 times. So, the greatest possible number of solutions is 2.

First equation can be rewritten as

$x^2+y^2=3^2$

It is the standard form of a circle $(x-h)^2+(y-k)^2=r^2$ , where (h,k) is center and r is radius.

In the above equation h=0,k=0 and r=3. It is a circle with radius 3 and centered at origin.

The second equation is

$9x+2y=16$

It is a linear equation.

Table of values.

x y

0 8

1 3.5

2 -1

Plot these points on a coordinate plane and connect them by a straight line.

From the below graph it is clear that the line and circle intersect each other at two points. So, the given system of equation have two solutions.

Therefore, the correct option is B.

Answer:

Step-by-step explanation:

6 divded by 2/3 = what

Answers

you keep the first number the way it is, and multiply by the reciprocal of the second number so:

6/1 * 3/2

6*3=18
1*2=2

So then you have 18/2 which is 9

Answer: 9

Explantion:

Divide: 6 : 2/

= 6/

· 3/

= 6 · 3/

1 · 2

= 18/

= 2 · 9/

2 · 1

= 9

Dividing two fractions is the same as multiplying the first fraction by the reciprocal value of the second fraction. The first sub-step is to find the reciprocal (reverse the numerator and denominator, reciprocal of 2/

is 3/

) of the second fraction. Next, multiply the two numerators. Then, multiply the two denominators. In the next intermediate step, , cancel by a common factor of 2 gives 9/

In words - six divided by two thirds = nine.

How do I solve this equation

Answers

-x - y = 8
2x - y = -1

Ok, we are going to solve this in 2 parts. First we have to solve for one of the variables in one of the equation in terms of the other variable. I like to take the easiest equation first and try to avoid fractions, so let's use the first equation and solve for x.

-x - y = 8 add y to each side
-x = 8 + y divide by -1
x = -8 - y

So now we have a value for x in terms of y that we can use to substitute into the other equation. In the other equation we are going to put -8 - y in place of the x.

2x - y = -1
2(-8 - y) - y = -1 multiply the 2 through the parentheses
-16 - 2y - y = -1 combine like terms
-16 - 3y = -1 add 16 to both sides
-3y = 15 divide each side by -3
y = -5

Now we have a value for y. We need to plug it into either of the original equations then solve for x. I usually choose the most simple equation.

-x - y = 8
-x - (-5) = 8 multiply -1 through the parentheses
-x + 5 = 8 subtract 5 from each side
-x = 3 divide each side by -1
x = -3

So our solution set is

(-3, -5)

That is the point on the grid where the 2 equations are equal, so that is the place where they intersect.

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