All categories

3 years ago

What is 5/8 + 3/4 equal?

Mathematics

2 answers:

True [87]3 years ago

7 0

11/8 or 13/8 is the answer.

NeX [460]3 years ago

6 0

11/8 you have to create a common denominator

You might be interested in

??????????????????????????

Zinaida [17]

Answer:

Step-by-step explanation:

3(2) + 4(-2) = -2 2(2)-4(-2) = -8

6 - 8 = -2 4 + 8 = -8

Correct Incorrect

3(6) + 4(-5) = -2 2(6) - 4(-5) = -8

18 - 20 = -2 12 + 20 = -8

Correct incorrect

3(4) + 4(4) = -2

12 + 8 = -2

incorrect

3(-2) + 4(1) =-2 2(-2) - 4(1) = -8

-6 + 4 = -2 -4 - 4 = -8

Correct Correct

Best way is process of elimination

5 0

2 years ago

A lighthouse has a shadow that is 36 feet long. Zara is 4 feet tall, and she is standing next to the lighthouse. Zara has a shad

larisa [96]

Answer:

Explanation:

7 0

3 years ago

g If the economy improves, a certain stock stock will have a return of 23.4 percent. If the economy declines, the stock will hav

dusya [7]

Answer:

$E(X) = 23.4* 0.67 -11.9*0.33= 11.759 \%$

Now we can find the second central moment with this formula:

$E(X^2) = \sum_{i=1}^n X^2_i P(X_i)$

And replacing we got:

$E(X^2) = (23.4)^2* 0.67 +(-11.9)^2*0.33= 413.5965$

And the variance is given by:

$Var(X) = E(X^2) - [E(X)]^2$

And replacing we got:

$Var(X) = 413.5965 -(11.759)^2 =275.5105$

And finally the deviation would be:

$Sd(X) = \sqrt{275.5105}= 16.599 \%$

Step-by-step explanation:

We can define the random variable of interest X as the return from a stock and we know the following conditions:

$X_1 = 23.4 , P(X_1) =0.67$ represent the result if the economy improves

$X_2 = -11.9 , P(X_1) =0.33$ represent the result if we have a recession

We want to find the standard deviation for the returns on the stock. We need to begin finding the mean with this formula:

$E(X) = \sum_{i=1}^n X_i P(X_i)$

And replacing the data given we got:

$E(X) = 23.4* 0.67 -11.9*0.33= 11.759 \%$

Now we can find the second central moment with this formula:

$E(X^2) = \sum_{i=1}^n X^2_i P(X_i)$

And replacing we got:

$E(X^2) = (23.4)^2* 0.67 +(-11.9)^2*0.33= 413.5965$

And the variance is given by:

$Var(X) = E(X^2) - [E(X)]^2$

And replacing we got:

$Var(X) = 413.5965 -(11.759)^2 =275.5105$

And finally the deviation would be:

$Sd(X) = \sqrt{275.5105}= 16.599 \%$

7 0

3 years ago

What is the classification of the polynomial by the number of terms?

hichkok12 [17]

Answer: Trinomial

Step-by-step explanation:

8 0

3 years ago

A surfboard has a price of $920. With sales tax, it will cost $1,012. What is the sales tax percentage?

Solnce55 [7]

Answer: 10%

Step-by-step explanation:

Let the sale tax = $x

Cost price (CP) of the surfboard = $920

Sale tax with cost price of the surfboard = $1,012

Therefore the sale tax ($x) = $1,012 - $920

=$92

Therefore the sale tax percentage = ⁹²/₉₂₀ x 100

= 10%

8 0

3 years ago