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3 years ago

90

Mathematics

1 answer:

rosijanka [135]3 years ago

5 0

Step-by-step explanation:

its a aaaaaaaaaaaaaaa

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Find the volume of the cone.

Galina-37 [17]

Please mark me brainliest!!!!
It’s C

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7 0

3 years ago

Read 2 more answers

PLEASE HELP ME OUT I NEED IT !!

lisov135 [29]

Answer:

(1/2 ,3) or (0.5, 3) is the same

Step-by-step explanation:

The midpoint between (3,5) and (-2,1) would be:

Apply the formula:

x1+x2 / 2 , y1 + y2 / 2

= 3 + (-2) / 2, 5 + 1 /2

= 1/2, 6/2

= 1/2 ,3 or 0.5, 3 is the same

Hope this helped :3

4 0

4 years ago

Two sides of a triangle measure 5 cm and 9 cm. It has an angle that measures 128°. Which type of triangle could it be? Select al

Anastaziya [24]

Answer:

i think b not to sure wait for more answers

Step-by-step explanation:

7 0

3 years ago

What number needs to be added to both sides of the equation to complete the square? X^2−7x=5 Enter your answers in the boxes.

Andrew [12]

ANSWER

We need to add half the coefficient of $x$ all square.

$\frac{49}{4}$

EXPLANATION

Given the equation,

$x^{2} -7x=5$ .

We compare to the general equation,

$ax^2+bx+c=0$

This means that;

$a=1,b=-7,c=-5$

To complete the square we add, $(\frac{b}{2})^2$

That is $(\frac{-7}{2})^2=\frac{49}{4}$ .

Hence the number to be added to both sides is $\frac{49}{4}$ .

Note that before we complete the square, the coefficient of the term in $x^2$ must always be 1.

7 0

3 years ago

What is the difference of the polynomials?

Vilka [71]

Answer:

$8r^6s^3-5r^5s^4+r^4s^5+5r^3s^6$

Step-by-step explanation:

We want to simplify;

$(8r^6s^3-9r^5s^4+3r^4s^5)-(2r^4s^5-5r^3s^6-4r^5s^4)$

We expand the bracket to obtain;

$8r^6s^3-9r^5s^4+3r^4s^5-2r^4s^5+5r^3s^6+4r^5s^4$

We now group the like terms to obtain;

$8r^6s^3-9r^5s^4+4r^5s^4+3r^4s^5-2r^4s^5+5r^3s^6$

We now simplify to get;

$8r^6s^3-5r^5s^4+r^4s^5+5r^3s^6$

The correct answer is C

3 0

4 years ago

Read 2 more answers