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2 years ago

What is -3x6 with explanation

Mathematics

2 answers:

oksano4ka [1.4K]2 years ago

7 0

Answer:

It is 3.

Step-by-step explanation:

Positive times negative equals -3.

Papessa [141]2 years ago

4 0

Answer:

-18

Step-by-step explanation:

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in a coordinate plane the midpoint of AB is (4,-3) and A has coordinate (1,5). if B has coordinate (x,y) find the value x+y

Aloiza [94]

Answer:

Please check the explanation.

Step-by-step explanation:

The midpoint (a, b) of line joining points (x₁, y₁) and (x₂, y₂)

a = x₁ + x₂ / 2

b = y₁ + y₂ / 2

Given that the midpoint of AB is (4, -3).

i.e. (a, b) = (4, -3)

Given that A has coordinate (1, 5).

i.e. (x₁, y₁) = (1, 5)

We have to determine the coordinates of B.

i.e. (x₂, y₂) = B

Thus,

4 = (1 + x₂)/2

(1 + x₂) = 4 × 2

1 + x₂ = 8

x₂ = 7

and

-3 = (5 + y₂)/2

(5 + y₂) = -3 × 2

5 + y₂ = -6

y₂ = -11

so (x₂, y₂) = (7, -3) = B

Thus, the coordinates of B = (x₂, y₂) = (7, -3)

Therefore,

x₂ + y₂ = 7 + (-3)

= 7 - 3

= 4

Hence, the value of x₂ + y₂ = 4

4 0

2 years ago

One warehouse had 185 tons of coal, another one had 237 tons. The first warehouse delivered 15 tons of coal to its clients daily

LenKa [72]

Hello Archanavrane75p56yu7

The answer to this problem would be 9 days for the second warehouse if 1.5 times than the first one.

P.S (Dont cry)

7 0

2 years ago

A population of 100,000 decreases by 6% each year. write a graph to explain that

UNO [17]

Answer:

Step-by-step explanation:

Your graph equation is going to be y = 100,000 - .06x

6 0

2 years ago

Read 2 more answers

The maximum value of the function: f(x)= -5 x ^2 +30x-200 is?

VARVARA [1.3K]

Answer:

$\displaystyle - 155$

Step-by-step explanation:

we are given a quadratic function

$\displaystyle f(x) = - 5 {x}^{2} + 30x - 200$

we want to figure out the minimum value of the function

to do so we need to figure out the minimum value of x in the case we can consider the following formula:

$\displaystyle x _{ \rm min} = \frac{ - b}{2a}$

the given function is in the standard form i.e

$\displaystyle f(x) = a {x}^{2} + bx + c$

so we acquire:

b=30
a=-5

thus substitute:

$\displaystyle x _{ \rm min} = \frac{ - 30}{2. - 5}$

simplify multiplication:

$\displaystyle x _{ \rm min} = \frac{ - 30}{ - 10}$

simply division:

$\displaystyle x _{ \rm min} = 3$

plug in the value of minimum x to the given function:

$\displaystyle f (3)= - 5 {(3)}^{2} + 30.3 - 200$

simplify square:

$\displaystyle f (3)= - 5 {(9)}^{} + 30.3 - 200$

simplify multiplication:

$\displaystyle f (3)= - 45 + 90- 200$

simplify:

$\displaystyle f (3)= - 155$

hence,

the minimum value of the function is -155

5 0

2 years ago

Constructing a Perpendicular Line through a Point Not on the

Allisa [31]

Answer:

Step-by-step explanation:caca\

4 0

2 years ago

Read 2 more answers