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4 years ago

Two cars leave the same location at 2:00 P.M. If one

Mathematics

2 answers:

Nastasia [14]4 years ago

8 0

Answer:

Step-by-step explanation:

Maru [420]4 years ago

4 0

The cars are 100 miles apart at 4:00 pm.

Explanation: Since north and east are perpendicular, this scenario creates a right triangle. where one side is 30(x) and the other is 40(x), where x is the number or miles traveling. We know that x = 2. So it’s a right triangle with sides 60 and 80.

Now we use the Pythagorean Theorem, which is: a² + b² = c².
80² + 60² = 3600 + 6400 = 10000

Now we take the square root of 10000.
√10000 = 100, because 100² = 10000.

Hope this helps.

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Part A: Solve A = (x + 23) for x. (4 points) Part B: Determine the value of x when A = 108. (2 points) Part C: Solve -np - 90 &g

Galina-37 [17]

Part A: Solve A = (x + 23) for x.

A = x + 23

=> A - 23 = x + 23 - 23

=> A - 23 = x

=> x = A - 23 <------- answer

Part B: Determine the value of x when A = 108

Replace the value of A in the expression x = A - 23

x = 108 - 23 = 75

x = 75 <------- answer

Part C: Solve -np - 90 > 30 for n.

-np - 90 > 30

=> -np + np - 90 >30 + np

=> - 90 > 30 + np

=> -90 - 30 > 30 - 30 + np

=> -120 > np

=> np < - 120 <----- answer

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3 years ago

I need help, I have been stuck on this

alex41 [277]

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$b = 9 {n}^{2} + 7$

$a = 3n + 4$

-----------------------------------------------------------

${a}^{2} = ( {3n + 4})^{2}$

${a}^{2} = 9 {n}^{2} + 24n + 16$

________________________________

$b = 9 {n}^{2} + 7$

$b = 9 {n}^{2} + 24n - 24n + 7 + 9 - 9 \\$

$b = (9 {n}^{2} + 24n + 16) - 24n - 9 - 23 + 23 \\$

$b = (9 {n}^{2} + 24n + 16) - (24n + 32) + 23 \\$

$b = ({3n + 4})^{2} - 8(3n + 4) + 23$

$b = {a}^{2} - 8a + 23$

Thus the correct answer is ( B ) .

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3 years ago

( brainliest ). Question below.

almond37 [142]

Answer:

See below ~

Step-by-step explanation:

As the parallelogram and rectangle have the same formula for calculating area : area = base x height, their dimensions will remain the same. Hence, the dimensions are listed for each figure :

Question 1(a)

Base = 5 cm
Height = 4 cm

Question 1(b)

Base = 3 cm
Height = 3 cm

Question 1(c)

Base = 6 cm
Height = 5 cm

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2 years ago

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Helga [31]

Short answer <2 and <3

Explanation
<4 is an interior angle. It has a supplementary angle in <1 which is the easiest to see. It also has another angle that is equal to it in number <5. <1 = <5 because they are vertically opposite angles. But the one that easier to see is <1.

That being said, the remote interior angles are the two interior angles that are not directly connected to <1. That is the remote part. Interior angles are those that are inside the triangle. That can only be <2 and <3.

The answer is <2 and <3 <<<< answer

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3 years ago

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NemiM [27]

Answer:

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3 years ago

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