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torisob [31]
3 years ago
13

-5/3 + 2 1/3 please help me

Mathematics
2 answers:
Yanka [14]3 years ago
6 0

The answer: 2/3

I hope this helped have a good rest of ur day!

Alexandra [31]3 years ago
5 0

Answer:

Well you can convert the mixed fraction into an improper one

-5/3 + 7/3

Which is really -5 + 7 and you’d get 2

so 2/3

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Consider this polynomial, where a is an unknown real number.
DENIUS [597]

Answer:

Step-by-step explanation:

Correct steps to find the value of 'a' should be,

Braulio's synthetic division should be,

-1  |     1       5         a          -3           11

   

    <u>            -1        -4        (4 - a)     (a - 1)  </u>

         1      4     (a - 4)     (1 - a)     (a + 10)

Here remainder is (a + 10).

So (a + 10) = 17 ⇒ a = 7

Braulio Incorrectly found a value of 'a' because he should have used (-1) instead of 1.

Zahra's calculation by remainder theorem should be,

p(x) = x⁴ + 5x³ + ax² - 3x + 11

p(-1) = (-1)⁴ + 5(-1)³ + a(-1)² - 3(-1) + 11

      = 1 - 5 + a + 3 + 11

      = (a + 10)

Since, remainder of the solution is 17,

(a + 10) = 17 ⇒ a = 7

Zahra incorrectly found the value of 'a' because she incorrectly solved the powers to (-1).

8 0
3 years ago
A woman stands 15 ft from a statue. She looks up at an angle of 60° to see the top of the statue. Her eye level is 5 ft above th
Novay_Z [31]

Answer:

31 ft

Step-by-step explanation:

Let the Woman's Eye level be at Band the top of the statue be at C in the attached diagram.

We want to calculate the height CE of the statue.

CE=CD+DE

First we find CD using trigonometry

Tan 60=CD/15

CD=15 X Tan 60

=25.98 ft

DE=AB= 5ft( Sides of a Rectangle)

Therefore the height of the statue

CE=CD+DE = 25.98+5=30.98 ft

=31ft( to the nearest foot)

4 0
3 years ago
6 people shared 4 subs equally how much each get
telo118 [61]

Answer:

2/3

Step-by-step explanation:

4 subs 6 people

4/6= 0.66 repeated

so each person got 2/3 sub

3 0
3 years ago
Huck and Jim are waiting for a raft. The number of rafts floating by over intervals of time is a Poisson process with a rate of
Harrizon [31]

Answer: 0.0081

Step-by-step explanation:

Let X be the number of rafts.

Given : The mean number of rafts floating : \lambda=0.4 rafts per day .

Then , for 7 days the number of rafts = \lambda_1=\lambda\times 7=0.4\times7=2.8 rafts per day .

The formula to calculate the Poisson distribution is given by :_

P(X=x)=\dfrac{e^{-\lambda_1}\lambda_1^x}{x!}

Now, the  probability that they will have to wait more than a week is given by :-

P(X>7)=1-P(X\leq7)\\\\=1-(P(0)+P(1)+P(2)+P(3)+P(4)+P(5)+P(5)+P(6)+P(7))\\\\=1-(\dfrac{e^{-2.8}2.8^{0}}{0!}+\dfrac{e^{-2.8}2.8^{1}}{1!}+\dfrac{e^{-2.8}2.8^{2}}{2!}+\dfrac{e^{-2.8}2.8^{3}}{3!}+\dfrac{e^{-2.8}2.8^{4}}{4!}+\dfrac{e^{-2.8}2.8^{5}}{5!}+\dfrac{e^{-2.8}2.8^{6}}{6!}+\dfrac{e^{-2.8}2.8^{7}}{7!})\\\\=1-0.991869258012=0.008130741988\approx0.0081

Hence, the required probability : 0.0081

4 0
3 years ago
What is the percent of change from 20 to 33?
Andrew [12]

Answer:

65%

Step-by-step explanation:

3 0
3 years ago
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