3 years ago

What is the midpoint of (10,6) and (4,9)

Mathematics

1 answer:

Leona [35]3 years ago

4 0

Answer:

The midpoint is (7,7.5)

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A satellite can move at 17,000 miles per hour. how many hours will it take to reach a star that is three light years away? recal

Feliz [49]

Distance to the star in light years = 3 * 0.62 * 9.5 * 10^12 = 1.767 * 10^13 miles

dividng this by 17,000 gives 1.039411765 * 10^9 hours

7 0

4 years ago

How do you explain -2≤2x-4<4

maxonik [38]

$-2\leq2x-4 < 4\ \ \ \ \ |add\ 4\\\\2\leq2x < 8\ \ \ \ |divide\ by\ 2\\\\1\leq x < 4$

$Answer:\boxed{1\leq x < 4\Rightarrow x\in(-\infty;\ 1]\ \cup\ (4;\ \ibfty)}$

3 0

3 years ago

Read 2 more answers

Suppose that the dollar cost of producing x appliances is c(x)=1000+ 90x- 0.2x 2

Aleksandr [31]

Answer:

Step-by-step explanation:

Given that the dollar cost of producing x appliances is

$c(x)=1000+ 90x- 0.2x^2$

A) Average cost can be obtained by dividing c(x) by units = x

i.e. average cost = $\frac{1000}{x} +90-0.2x$

B) Marginal cost = dC/dx = $90-0.4x$

When x=140 marginal cost $= 90-0.4(140)\\=34$

C) We calculate

c(140) = $=1000+90(140)-0.2(140^2)\\\\=9680$

c(141) = $=1000+90(141)-0.2(141^2)\\\\\\=9713.80$

Marginal cost = difference = 33.80

Same as 34 shown in marginal cost.

6 0

4 years ago

5. Andre is solving the equation 4(x + 3) = 7. He says, “I can subtract from each side to get

Vinil7 [7]

4(x+3)=7
The mistake is with his final answer, he wrote down 4x=1.

When you do 4(x)4(3), the answer is completely different from what Andre said. He did wrong calculations.

4x3=12

7-12= -5

Which means it should be 4x=-5 as the final answer.

8 0

3 years ago

A number is 7 tens more than 624. What is the number?

blagie [28]

624 + 70 = 694
( I think this might be the answer, depending on if it's basic math compared to a more specific subject.)

5 0

3 years ago