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3 years ago

Please help! there are only 12 questions that I need help with.

Mathematics

2 answers:

svlad2 [7]3 years ago

5 0

Answer:33

Step-by-step explanation:

you have to multiply 3 with the 5 and 6 and then plus it

barxatty [35]3 years ago

3 0

Answer:

Step-by-step explanation:

use the distributive property

3 x 5 = 15

3 x 6 = 18

15 + 18 = 33

need more help?

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Determine the equation of the circle graphed below. ( please help me )

Brums [2.3K]

Answer:

$Equation : \\(x+3)^2 + ( y -2)^2 = 36$

Step-by-step explanation:

For standard form the circle's equation we need the centre of the circle and the radius.

Step 1: Find the centre

If the centre is not given find the end points of the diameter

and then find the mid point.

Let the end points of the diameter be : ( - 3 , 8 ) and ( -3 , -4 )

The mid-point of the diameter is :

$Mid-point = (\frac{-3 + - 3}{2}, \frac{-4+8}{2}) = (-3, 2)$

Therefore, centre of the circle = ( -3 , 2 )

Step 2 : Find radius

$Radius = \frac{Diameter }{2}$

Diameter is the distance between the end points ( -3 , 8) and ( -3 , -4 )

That is ,

$Diameter = \sqrt{(-3-(-3))^2 + ( -4 -8)^2}\\$

$= \sqrt{(-3 + 3)^2 + (-12)^2}\\\\=\sqrt{0 + 144}\\\\=12$

Therefore ,

$Radius = \frac{12}{2} = 6$

Step 3 : Equation of the circle

Standard equation of the circle with centre ( h ,k )

and radius ,r is :

$(x - h)^2+(y -k)^2 = r^2$

Therefore, the equation of the circle with centre ( -3, 2)

and radius = 6 is :

$(x - (-3))^2 + (y - 2)^2 = 6^2\\\\(x + 3)^2 + (y - 2)^2 = 36$

5 0

2 years ago

A chemistry set costing $27.50, marked up 32% on cost.

GalinKa [24]

revenue- 36.30$ profit- 8.80$

4 0

3 years ago

Read 2 more answers

PLEASE HELP. It talks about proportionate pieces, and I don't understand!! My teacher goes too fast!!

Elan Coil [88]

Ok, so basically, proportionate pieces mean that the lengths in each section of the diagram are proportional:

2/q = 3/4 = 4/p

Using this, you could find that q = 2/3 and p = 4/3

5 0

3 years ago

Pls answer this question don't answer with a link

katrin [286]

Answer:

18/3 =6/1 and 12/2=6 so both answers should be 6

4 0

2 years ago

What is .173 to the nearest hundredth?

tatyana61 [14]

Answer: .17

To the nearest hundredth is two spaces to the right of the decimal.

To round find the number to the right of the “rounding” number and see if it is 5 or above 5.

Example: 0.57 it is above 5 so newest hundredth it 0.6

7 0

3 years ago

Please help! there are only 12 questions that I need help with. ​

Please help! there are only 12 questions that I need help with.