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SVEN [57.7K]
2 years ago
9

Can you plzzzzz help me?

Mathematics
1 answer:
vazorg [7]2 years ago
3 0

Answer:

65 people

Step-by-step explanation:

0 represents the unknown value

0-19= -19

-19+17= -2

63+ the two that were lost during the journey=65

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Write down the least number of sectors that will cover a
Aliun [14]

definition of area which is the number of square units that will cover a ... A rectangle is just a special type of parallelogram. ... perimeter and area, we will need the radius of the circle.

7 0
3 years ago
Help again please lol<br> I suck at math
goldenfox [79]

Answer:

The answer is B. 1 28/99

Step-by-step explanation:

If you divide 28/99, you will get 0.28282828 and so on. and 1 is a whole number, so 1.28 is what B equals.

8 0
3 years ago
The entrance fee to the national park is $15. The campsite fee is $25 per night.
lisabon 2012 [21]

Answer:

Step-by-step explanation:

a.) y = 25x + 15

b.) y is the total cost x is the amount of nights stayed 15 is the entrance fee and 25 is the cost per night

i.) x is the amount of nights stayed y is the total cost

ii.) slope (or m) is 25 y-intercept is 15

c.) plug in 3 for x

y = 25(3) + 15

y = 75 + 15

y = 90

its $90 for 3 nights

hope this helps <3

8 0
2 years ago
Find the length of a rectangle with a diagonal of 10 and a height of 8.
Dmitry_Shevchenko [17]

Answer:

The length of the rectangle is 6.

Step-by-step explanation:

Given: The diagonal of a rectangle is 10 and the height is 8.

Please understand, that a diagonal, divides the rectangle into two tringles.

To find the length of the rectangle, you can use Pythagoras on one of the right sided triangles, because the length of the triangle, is also the length of the rectangle!

<em>EXTRA:</em>

<em>If</em><em> you know the special 3 4 5 triangle, a so called Pythagorean Triple, then you can "see" the simularity between the numbers.</em>

<em>Instead of 5, a diagonal of 10 is given (factor of 2 bigger).</em>

<em>Instead of 4, the height of 8 is given (factor of 2 bigger</em><em>)</em><em>.</em><em> </em><em>By scaling the Pythagorean Triple 3 4 5 by a factor of 2, you get the numbers 6 8 10. Could it be, that the number we need to find, is six?</em>

Try to verify, by calculating the missing number (which is the length of the rectangle we are looking for).

a² + b² = c²

a = length (and is unknown)

b = height = 8

c = hypothenusa/diagonal = 10

Substitute the numbers given:

a² + 8² = 10²

Subtract 8² left and right of the = sign.

a² +8² -8² = 10² - 8²

a² + 0 = 100 - 64

a² = 36

a = + - √36

a = + - 6

<em>EXTRA</em><em>:</em>

<em>You</em><em> can ignore the -√36 = -6 part of the solution, because a length of -6 has no meaning here.</em>

a = 6

So, the length of the triangle is 6 and thus, the length of the rectangle is also 6.

8 0
3 years ago
5^11 times 5^3 = 5^?
postnew [5]

Answer:

5^{13}

Step-by-step explanation:

5^{11}\times \:5^2

<u>Apply exponent rule : </u>a^b\times \:a^c=a^{b+c}

  • 5^{11}\times \:5^2=5^{11+2}
  • 5^{11+2}

<u>Add 11 +2 = 13</u>

  • <u />=5^{13}

<u>-----------------------</u>

<u>OAmalOHopeO</u>

<u>-----------------------</u>

7 0
2 years ago
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