Answer:
Luke has 13 marbles
Step-by-step explanation:
t = number of marbles Tom has
l = number of marbles Luke has
t = 2l
t+l = 39
Substitute t = 2l into the second equation
2l + l = 39
Combine like terms
3l = 39
Divide by 3
3l /3 = 39/3
l = 13
Luke has 13 marbles
Tom has 2 * 13 = 26 marbles
Pn(Z>zp)=1−p%
Given a variable X following a normal distribution with mean μ and standard deviation σ, the area below the curve that corresponds to all values that are less than a that is, X<a
is the probability P(X<a). This probability is usually calculated by converting the variable X to a standard normal variable Z (forming z scores) defined by:
The variable Z follows the standard normal distribution with a mean of 0 and a standard deviation of 1.
The standard normal probabilities are typically found by using the standard normal tables or other computational means such as calculators or software.
Pn(Z>zp)=1−p%
Here Pn is the probability for the standard normal variable.
Learn more about mean here brainly.com/question/18060320
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Answer:
Terms are separated by addition signs and subtraction signs, but never by multiplication sign
Step-by-step explanation:
A polynomial with one term is called a monomial. A polynomial with two terms is called a binomial. A polynomial with three terms is called a trinomial.
It can be helpful to rearrange numerators and denominators so you can see the factors cancel. The result is negative if the number of negative factors is odd. Mixed numbers are often easier to multiply if changed to improper fractions first.
- (5/16)(-2)(-4)(-4/5) = -(5/5·(4·4)/16·2) = -2
- (2/3)(-4)(9) = -(9/3·2·4) = -24
- (2 3/5)(7/9) = 13/5·7/9 = (13·7)/(5·9) = 91/45
- (-3/4)(7/8) = -(3·7)/(4·8) = -21/32
<span>C.
t – 12.8 = 15.2. I am glad to help u out</span>
