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vodka [1.7K]
3 years ago
11

Can u help me plzzzzz-zzz

Mathematics
1 answer:
WITCHER [35]3 years ago
3 0
B )27 hope this helps
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What are the values a, b, and c in the following quadratic equation?<br><br> −6x = −8x2 − 13
lesya692 [45]

Answer:

Quadratic equation follows form: ax^2 + bx + c = 0

a = 8

b = - 6

c = 13

4 0
3 years ago
Describe how the graph of y= 1/3x is the same and different from the graph of y= 1/3x - 4
uranmaximum [27]

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the lines have the same slope

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Step-by-step explanation:

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3 years ago
Question 13 pts
oee [108]

Answer:

1. 68%

2. 50%

3. 15/100

Step-by-step explanation:

Here, we want to use the empirical rule

1. % waiting between 15 and 25 minutes

From what we have in the question;

15 is 1 SD below the mean

25 is 1 SD above the mean

So practically, we want to calculate the percentage between;

1 SD below and above the mean

According to the empirical rule;

1 SD above the mean we have 34%

1 SD below, we have 34%

So between 1 SD below and above, we have

34 + 34 = 68%

2. Percentage above the mean

Mathematically, the percentage above the mean according to the empirical rule for the normal distribution is 50%

3. Probability that someone waits less than 5 minutes

Less than 5 minutes is 3 SD below the mean

That is 0.15% according to the empirical rule and the probability is 15/100

7 0
2 years ago
at a bargain store, Tanya bought 4 items that each cost the same amount. Tony bought 5 items that each cost the same amount, but
lesantik [10]

3x=4x-9

x=9

x-2.25=6.75

Tanya spent $9 on each item; Tony spent $6.75 on each of his items.

3 0
3 years ago
Would the product change if 50 + 2 on the top of the area model was changed to 20 + 30 + 2? Explain
ollegr [7]

Answer:

It would not change

Step-by-step explanation:

Because if you add you get the same thing

4 0
3 years ago
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