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2 years ago

Pleaseeeeeeeee helllllllpppppoo

Mathematics

1 answer:

kodGreya [7K]2 years ago

4 0

I'm pretty sure the answer is c

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Simplify the expression .

katovenus [111]

$10xy^2(3x^3-5x)-2x^2y(6y^3+3y)=\\\\=30x^4y^2-50x^2y^2-12x^3y^4-6x^2y^2=\\\\=\boxed{30x^4y^2-12x^3y^4-56x^2y^2}$

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2 years ago

Consider the Triangle Sum Theorem in relation to a right triangle. What conjecture can you make about the two acute angles of a

Anon25 [30]

They must be complementary. these 2 angles MUST equal 90 degrees because there is a right angle that is 90 degrees in the triangle already and all triangles have an angle sum of 180 degrees. the answer is complementary

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2 years ago

Which expression represents the product of 6 and y? 6y 6 y 6 − y 6 over y

prohojiy [21]

Just a 6y would do. :)))

5 0

2 years ago

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There are 15 girls and 25 boys in a science club what percent of the members were girls

otez555 [7]

15 / 40 = .375
total # total #
of girls of students

.375 = 37.5%

15/40 as a fraction ---> simplify ---> 3/8

3 0

2 years ago

If the slope of a line is -1 and two points on the line are (-9, 3) and (-10, r), what is the value of r?

ANEK [815]

Answer:

$r=4$

Step-by-step explanation:

We know that the slope of the line is -1.

We also know that the line passes through (-9, 3) and (-10, r).

We want to find the value of r.

First, let's figure out the equation of our line. We can use the point-slope form:

$y-y_1=m(x-x_1)$

Where m is the slope and (x₁, y₁) is a point.

So, let's substitute -1 for m. Since we know the point (-9, 3), let's use this for (x₁, y₁).

Substitute:

$y-(3)=-1(x-(-9))$

Simplify:

$y-3=-(x+9)$

Distribute:

$y-3=-x-9$

Add 3 to both sides. So, our equation is:

$y=-x-6$

It passes through (-10, r) and we want to find the value of r. So, let's substitute -10 for x and r for y, since -10 is our x and r is our y. So:

$r=-(-10)-6$

Evaluate for r. Distribute:

$r=10-6$

Subtract:

$r=4$

So, the value of r is 4.

And we're done!

6 0

2 years ago