3 years ago

I really need help on this i dont know how to do it.

Mathematics

1 answer:

Juli2301 [7.4K]3 years ago

5 0

Answer:

Step-by-step explanation:

25x = 300

Rearrange to solve

x = 300 divided by 25 = 12

Hope this helps

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Write an equation of a circle that has the center at the origin and goes through (-3,-6)

dexar [7]

Answer:

$x^{2} +y^{2} = 45$

Step-by-step explanation:

General Equation of circle is

$(x-x_1)^{2} +(y-y_1)^{2} = r^{2}$ ----------- (1)

Here

$(x_1, y_1)= (0, 0)$

Radius r is distance from origin (x1, y1) to point (x2, y2)=(-3, -6)

$r=\sqrt{(x_2-x_1)^{2} + (y_2-y_1)^{2} }$

$r= \sqrt{(-3-0)^{2} + (-6-0)^{2} }$

$r= \sqrt{9+36}$

$r=\sqrt{45}$

Substituting values in equation (1)

$(x-0)^{2} +(y-0)^{2} =( \sqrt{45})^{2}$

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2 years ago

(2x + 3) (2x2 – 2+4)

nadya68 [22]

Answer:

(2x + 3) (2(2)x2 – 2+4)

Step-by-step explanation:

thats what i got hope it helps :)

5 0

3 years ago

Read 2 more answers

Can someone help me to solve this problem pls?! I didn’t really understand how I need to solve this question.

amid [387]

Step-by-step explanation:

so first you graph the triangle

count how many units one point is from the other point

and if it's hard to count the units (maybe bc the line is diagonal) use the distance formula or the Pythagorean theorem

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2 years ago

I need the answer and the work (it’s geometry)

Kisachek [45]

Answer:

Step-by-step explanation:

The starting point is B and the ray extends towards A.

So the asnwer is D.

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3 years ago

I need the answer for number 3.

deff fn [24]

Answer:

0.12

Step-by-step explanation:

15 divided by 125 is equal to 0.12

6 0

3 years ago