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Slav-nsk [51]
2 years ago
6

(4+5)÷3×4= can someone help me with this question please

Mathematics
1 answer:
Darina [25.2K]2 years ago
8 0
PEMDAS
Parentheses
Exponents
Multiplication
Division
Addition
Subtraction
(4+5)÷3×4
9÷3•4
3•4
12
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What is the discriminante of 9x^2+10x
Leni [432]
The discriminant of y=ax^2+bx+c is b^2-4ac

given
9x^2+10x+0
a=9
b=10
c=0

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the discriminant is 100
6 0
3 years ago
What does it mean? I need help with this
kykrilka [37]
In order to do mean you have to add all of the numbers in the list together. then divide them by the total amount of numbers (ex. 7,9,3,2,5. you would add all of these up 7+9+3+2+5=26 then you would divide that by 5 because there are five numbers in the list.
8 0
3 years ago
This Venn diagram shows the pizza topping preferences for 9 students. Let event A = The student likes pepperoni. Let event B = T
victus00 [196]

Answer:

P(A\ or\ B)=\frac{7}{9}

Step-by-step explanation:

We need to use the formula to calculate the probability of (A or B) where  

A=Probability a student likes pepperoni

B=Probability a student likes olive

A and B =Probability a student likes both toppings in a pizza

A or B =Probability a student likes pepperoni or olive (and maybe both), a non-exclusive or

The formula is

P(A\ or\ B)=P(A)+P(B)-P(A\ and\ B)

Since 6 students like pepperoni out of 9:

P(A) = \frac{6}{9}

Since 4 students like olive out of 9:

P(B) = \frac{4}{9}

Since 3 students like both toppings out of 9

P(A\ and\ B) = \frac{3}{9}

Then we have

P(A\ or\ B)=\frac{6}{9}+\frac{4}{9}-\frac{3}{9}

P(A\ or\ B)=\frac{7}{9}

7 0
2 years ago
recipe for brownies calls for 3/4 cup of sugar. Skylar has a bag that contains 9 1/2 cups of sugar. Exactly how many batches of
goblinko [34]
.9 1/2 cups is equal to 19/4. divide 19 by 3 (the 3 from 3/4) and you get 6 1/4. Skylar can make 6 batches with this one bag of sugar.
5 0
2 years ago
Which of the following represents the sum of the series below? 4+7+10+13+16+19+22+25+28+31+34+37++40
Mazyrski [523]
286 is the sum of the series below. You can plug this in or use long addition.
Either that or you make an average and that's your answer.
6 0
3 years ago
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