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Leno4ka [110]
2 years ago
7

HELP. I NEED TO KNOW HOW TO ANSWER THIS QUESTION QUICKLY SO I CAN DO IT IN MY EXAMS. PLEASE NO SPAM AND GIVE AN EXPLANATION WITH

YOUR ANSWER.

Mathematics
1 answer:
sp2606 [1]2 years ago
4 0

Answer:

- 1,3 -1,4 - 1,5 in think pls check it

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Can someone plzzz help mee ill give brainlest
galina1969 [7]

Answer:

272.3 or just 272

Step-by-step explanation:

To find answer first find the area of the circle, then add the 18.

A=r*r*3.14 (pi) = 9*9*3.14=254.34

254.34+18=272.34

Hope this helps!!! :)

8 0
2 years ago
Find the point on the line y = 2x + 3 that is closest to the origin.
ch4aika [34]
1)We have to make a line perpendicular to y=2x+3, passing through the point (0,0).

y=2x+3   
m=solpe=2

The slope of the line perpedicular to y=2x+3 is m´
m´=-1/m
m´=-1/2

Point slope form:
y-y₀=m(x-x₀)
(0,0)
m=-1/2

y-0=-1/2(x-0)
y=-x/2

Therefore, the line perpendicular to y=2x+3 is y=-x/2.

2)The point on the line y=2x+3 tha is closest to the origin is the point of intersection of the two lines.

y=2x+3
y=-x/2

We can solve this system of equations by equalization method.
2x+3=-x/2
least common multiple=2
4x+6=-x
4x+x=-6
5x=-6
x=-6/5  (=-1.2)

y=-x/2
y=-(-6/5)/2=6/10=3/5    (=0,6)

Therefore: the point of the line y=2x+3 that is closest to the origin is:
 (-1.2 , 0.6)

3 0
3 years ago
The solutions to the equation 2x2+x-1=2
eimsori [14]

Answer: x = ⅗

-----------------------

4 0
3 years ago
(6 · 10^5)(5 · 10^-9) ÷ (3 · 10^-3) (Express in regular numbers.
ladessa [460]

Remark

Break this down into smaller steps. Do as much as you can before considering the next part.

Step One

multiply (6*10^5) * (5 * 10^-9)

5 * 6 = 30

10^5 * 10-9 = 10^(5 - 9) = 10^-4

30 * 10^-4. But scientific notation expresses numbers between 1 and 10

30 * 10^-4 = 3 * 10^1 * 10^-4 = 3 * 10^(1 -4) = 3 * 10^-3

That's about as far as you can go with this step.

Step Two

Divide 3*10^-3 by 3 * 10^-3

When you divide anything at all by itself, you get 1.

For example 130011 / 130011 = 1

So

3 * 10^-3 divided by 3*10^-3 = 1

Answer: 1

4 0
3 years ago
Which type of triangle is triangle QRS?
MAXImum [283]

Answer:

B) equilateral...............

4 0
2 years ago
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