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aniked [119]
4 years ago
7

Determina numerele prime a si b, siind ca a+b=19

Mathematics
1 answer:
Maurinko [17]4 years ago
6 0
<span>a și b pot fi oricare egale cu 19

EX: 

a=10
b=9</span>
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A Toyota Prius and a Dodge Circuit leave an intersection at the same time. The Prius heads east at an average speed of 50 miles
zhenek [66]

Answer:

33.634 ; 134.536 ; d = √[(50t)² + (45t)²]

Step-by-step explanation:

Given the following :

Toyota Prius = East at 50mph

Dodge Circuit = South at 45mph

Distance apart after 30 minutes :

Distance = speed * time

Distance moved by Prius = ( 50mph × 0.5hr) = 25 miles

Distance moved by Circuit = ( 45mph × 0.5hr) = 22.5 miles

Hence Displacement after 30 minutes :

d = √(25² + 22.5²)

d = √625 + 506.25

d = √1131.25

d = 33.634 miles

Distance apart after 2 hours :

Distance = speed * time

Distance moved by Prius = ( 50mph × 2hr) = 100 miles

Distance moved by Circuit = ( 45mph × 2hr) = 90 miles

Hence Displacement after 2 hours :

d = √(100² + 90²)

d = √10000 + 8100

d = √18100

d = 134.536 miles

Distance d in miles after t hours :

d = √[(50t)² + (45t)²]

8 0
4 years ago
In ΔQRS, q = 890 cm, s = 810 cm and ∠S=120°. Find all possible values of ∠Q, to the nearest degree.
Lelechka [254]

Answer: no possible triangles

Step-by-step explanation:

4 0
3 years ago
What is the equation of the line shown in this graph? graph shown down below
Andrew [12]

Answer:   x = -2

Step-by-step explanation:

In the given picture , the line is parallel to the y- axis and passing through (-2,2) and (-2 , -3).

The equation of line parallel to y-axis (has slope undefined) is given by

x= a , where a is the point on x-axis through which the line is passing .

For the given graph , the line is passing through x = -2.

Therefore  , the equation of the given line = x = -2

Hence, the correct answer = x = -2

5 0
4 years ago
How do you solve for(−5)^5(−5)^−6
Aleonysh [2.5K]

Answer:

-1/5

Step-by-step explanation:

We know that a^b * a^c = a^(b+c)

(−5)^5(−5)^−6

(-5) ^(5+-6)

(-5)^-1

We know that a^-b = 1/a^b

1/(-5)^1

1/-5

-1/5

3 0
3 years ago
30, ______, 19, 13 1/2 find the missing number
Anika [276]
It's decreasing by 5  1/2 each time, so:
<u><em>24  1/2, or 24.5</em></u>
4 0
3 years ago
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