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3 years ago

You can show your work if u want to Find 2 numbers if Their sum is −7 and their difference is 14

Mathematics

1 answer:

Pepsi [2]3 years ago

7 0

The larger number is (-7+14)/2 = 3.5.

The smaller number is (-7-14)/2 = -10.5.

_____

The two equations a+b=-7, a-b=14 can be solved to get these results. It is genrally convenient to solve them by adding one to the other, or subtracting one from the other.

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forsale [732]

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3 years ago

Round 0.578 to the nearest tenth

Deffense [45]

0.578 rounded to the nearest tenth would be 0.6, since the 7 in the hundredths spot is higher than 5.

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3 years ago

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The map shows the location of the airport and a warehouse in a city. Though not displayed on the map, there is also a factory 10

kipiarov [429]

step 1

find the coordinates of the factory

the factory is 104 miles due north of the warehouse

the coordinates of the warehouse are (39,-52)

coordinates of the factory------> (39,-52+104)------> (39,52)

step 2

find the distance warehouse to airport

let

A coordinates of warehouse-------> A( 39,-52)

B coordinates of airport---------> B(-39,52)

C coordinates of factory-------> C(39,52)

distance AB=√[(52+52)²+(-39-39)²]------> distance AB=130 miles

step 3

find the distance airport to factory

B(-39,52)

C(39,52)

distance BC=√[(52-52)²+(39+39)²]-----> distance BC=39 miles

the total number of miles=distance AB+distance BC---> 130+39

the total number of miles=169 miles

Thus the answer is 169

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3 years ago

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ale4655 [162]

Answer:

F(x) = 3x^2 + 1, G(x) = 2x - 3, H(x) = x

F(3) = 3(3)^2 + 1 = 27 + 1 = 28

G(4) = 2(4) - 3 = 8 - 3 = 5

2H(5) = 2(5) = 10

F(3) + G(4) - 2H(5) = 28 + 5 - 10

F(3) + G(4) - 2H(5) = 23

Step-by-step explanation:

I believe I'm not sure tho

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3 years ago

Bob and mark talk about their families. Bob says he has 3 kids, the product of their age is 72. He gives another clue: the sum o

Bingel [31]

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The sum has to be 14. So it can be 2, 6, and 6 or 3, 3, and 8.
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So it is 2, 6, and 6.

Hope this helps :)

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3 years ago