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2 years ago

Can i get some help with this pls

Mathematics

2 answers:

qwelly [4]2 years ago

4 0

Answer:

-16

Step-by-step explanation:

it's right I promise

PilotLPTM [1.2K]2 years ago

3 0

Answer:

- 16

Step-by-step explanation:

substitute e = - 4 , f = 8 into the expression

ef ÷ 2

= - 4 × 8 ÷ 2

= - 32 ÷ 2

= - 16

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3 years ago

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3 years ago

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3 years ago

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HELP PLZ PICK ONE OF THE ONES SHOWN:

defon

I am doing with Question Number 2

Let the two numbers be 'x' and 'y'.

According to the question, the product of two numbers is 14.

$x \times y=14$

So, xy=14 (Equation 1)

Now, one of the numbers is 3 ½ times the other.

So, $x = 3\frac{1}{2}\times y$

$x=\frac{7}{2}y$ (Equation 2)

Substituting the value of 'x' from equation 2 in equation 1, we get

$\frac{7}{2}y \times y = 14$

$\frac{7}{2}y^{2} = 14$

$y^{2} = 4$

So, y= 2 and -2

So, $x=\frac{14}{2}$ and $x=\frac{14}{-2}$

x=7 and -7

Numbers are 2,7 and -2,-7.

Sum of numbers 2 and 7 = 9

Sum of numbers -2 and -7 = -9.

6 0

3 years ago

I need help with this

kodGreya [7K]

Answer:

If we are working in a coordinate plane where the endpoints has the coordinates (x1,y1) and (x2,y2) then the midpoint coordinates is found by using the following formula:

midpoint=(x1+x22,y1+y22)

Step-by-step explanation:

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3 years ago