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ratelena [41]
3 years ago
12

Help me Thanks if you answered

Mathematics
1 answer:
JulsSmile [24]3 years ago
4 0

Answer:

number 21: 5 ten thousands, 7 hundreds, <em><u>7</u></em><em><u> </u></em>tens and 7 ones

Step-by-step explanation:

7 tens = 70

7 ones = 7

which equals 77, if the number is 50,777, you can see the last two digits in the tens and ones place are 7 and 7.

You might be interested in
What is the additive identity of rational number​
Burka [1]

Answer:

zero(0)

Step-by-step explanation:

The additive identity of a set of number is a number such that the its sum with any of the numbers in the set would give a result that is equal to the number in that set.

In other words, say for example the set of numbers is rational, the additive identity of rational numbers is 0. This is because, given any rational number say <em>x</em>, adding zero to the number <em>x</em> gives the same number <em>x. </em>i.e

x + 0 = x

If x is say 2, then we have;

2 + 0 = 2

Since adding zero to rational numbers gives has no effect on the numbers, then zero (0) is the additive identity of rational numbers.

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3 0
3 years ago
La funcion que representa el beneficio obtenido por una empresa si vende x unidades de uno de sus productos es f(x)= -70x^2+2800
DerKrebs [107]

Answer:

20

Step-by-step explanation:

La función es

f(x)=-70x^2+2800x-45000

Diferenciando con respecto a x obtenemos

f'(x)=-140x+2800

Igualar con cero

0=-140x+2800\\\Rightarrow x=\dfrac{2800}{140}\\\Rightarrow x=20

Doble derivada de la función

f''(x)=-140

Entonces, la función es máxima cuando el número de unidades vendidas,  x=20,

3 0
3 years ago
Summer day camp is about to begin. Today there are 132 boys signed up and 219 total children signed up. How many more boys than
pshichka [43]
219-132 is the equation because the rest of the 219 comes from the girls who signed up. the answer is 77. To find how many more boys than girls signed up you need to subtract 77 from 132. 132-77= 55
4 0
3 years ago
Read 2 more answers
Help I have like 10 minutes to do this
k0ka [10]

Answer:

5

Step-by-step explanation:

The mean is the average so add up all values of the data points and divide by the amount of data points.

3 0
2 years ago
Read 2 more answers
PLZ HELP LIKE NOWWWW
BartSMP [9]

What is help needed on?

3 0
3 years ago
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