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solong [7]
3 years ago
6

Caleb’s parents drove him to a swimming meet 208 km away. It took them 2 hours, which includes a 15-minute break to refuel. What

was their average driving speed?
Mathematics
1 answer:
Reptile [31]3 years ago
3 0
I think the answer is 119 kph
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What’s the answer?!!!!!!
Sergio [31]

Answer:

no

Step-by-step explanation:

Using the converse of Pythagoras' identity.

If the square of the longest side is equal to the sum of the squares of the other 2 sides then the triangle is right.

longest side = 30 , then 30² = 900

20² + 23² = 400 + 529 = 929 ≠ 900

Then the triangle is not right.

7 0
3 years ago
Read 2 more answers
Encontrar la Esperanza Matemática y Desviación Estándar del número de imperfecciones (y) en pizarra acrílica. (2 puntos) y 0 1 2
fredd [130]

Responder:

1,625; 0.8569

Explicación paso a paso:

y ___0 ____ 1 ____ 2 ____3

P (y) _1 / 8 ___ ¼ ___ ½ ____ 1/8

Valor esperado (E (x)): Σx * p (x)

= (0 * (1/8)) + (1 * (1/4)) + (2 * (1/2)) + (3 * (1/8)) = 1,625

La desviación estándar = sqrt (Var (x))

Var (X) = Σx²p (x) * E (x) ²

Var (X) = [(0 ^ 2 * (1/8)) + (1 ^ 2 * (1/4)) + (2 ^ 2 * (1/2)) + (3 ^ 2 * (1 / 8))] - 1.625²

Var (X) = (0 * (1/8)) + (1 * (1/4)) + (4 * (1/2)) + (9 * (1/8)) - 1.625 ^ 2

= 3.375 - 2.640625

= 0,734375

Desviación estándar = Sqrt (0,734375) = 0,8569

7 0
2 years ago
a recipe calls for 2 2/4 cups of raisins,but Julie only has a 1/4 measuring cup. how many 1/4 cups does Julie need to measure ou
kozerog [31]

Answer:

10

Step-by-step explanation:

Divide 2 2/4 cups of raisins by 1/4 cup:

10 cups

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

     4

=============

  1 cup

  --------

       4

Invert the divisor and then multiply:

10 cups            4

-------------  ·  ----------  =  10

     4              1 cup

Julie must measure out 10 of these 1/4-cup measures (of raisins).

7 0
3 years ago
If a vsco girl walks 1.5 miles how many yards is that???? pls answer quickly pls​
tekilochka [14]

<em>One mile is equal to 1760 yards. Therefore, 1.5 miles is equal to 1.5 x 1760 = 2640 yards.</em>

<em>1.5 mile = 2640 yards</em>

<em></em>

<em>Hope this helps</em>

<em></em>

<em>Please give me Brainliest</em>

6 0
3 years ago
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Х = 2y + 3<br> х = Зу — 4​
krek1111 [17]
I don’t even know :( sorry
8 0
2 years ago
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