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Elenna [48]
2 years ago
13

-5 (e - 1) + 6e = -17

Mathematics
2 answers:
djverab [1.8K]2 years ago
7 0
(-5e+1) +6e=-17

1e=-16
Alex787 [66]2 years ago
5 0

First expand the equation.

-5e+5+6e = -17

Next, combine the like terms.

e+5 = -17

e = -22

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Seven times the sum of a number 9 and 2 equals .<br><br><br>WRITE AS AN EQUATION
kramer

Answer:

7×11=77

Step-by-step explanation:

7

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3 0
3 years ago
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Each year, more than 2 million people in the United States become infected with bacteria that are resistant to antibiotics. In p
Olegator [25]

Answer:

Reject <em>H</em>₀. There is a significant difference in drug resistance between the two states.

Step-by-step explanation:

In this case we need to determine whether the data suggest a statistically significant difference between the proportions of drug-resistant cases in the two states.

The significance level of the test is, <em>α</em> = 0.02.

(1)

The hypothesis can be defined as follows:  

<em>H</em>₀: There is no difference between the proportions of drug-resistant cases in the two states, i.e. p_{1} - p_{2}=  0.  

<em>Hₐ</em>: There is a statistically significant difference between the proportions of drug-resistant cases in the two states, i.e. p_{1} - p_{2}\neq  0.  

(2)

Compute the sample proportions and total proportion as follows:

\hat p_{1}=\frac{12}{189}=0.063\\\\\hat p_{2}=\frac{8}{429}=0.019\\\\\hat p=\frac{12+8}{189+429}=0.032\\

Compute the test statistic value as follows:

Z=\frac{\hat p_{1}-\hat p_{2}}{\sqrt{\hat p(1-\hat p)\times [\frac{1}{n_{1}}+\frac{1}{n_{2}}]}}

   =\frac{0.063-0.019}{\sqrt{0.032(1-0.032)\times [\frac{1}{189}+\frac{1}{429}]}}\\\\=2.86

The test statistic value is 2.86.

(3)

The decision rule is:

The null hypothesis will be rejected if the p-value of the test is less than the significance level.

Compute the p-value as follows:

p-value=2\cdot P(Z>2.86)=2\times 0.00212=0.00424

<em>p</em>-value = 0.00424 < <em>α</em> = 0.02.

The null hypothesis will be rejected at 0.02 significance level.

Reject <em>H</em>₀. There is a significant difference in drug resistance between the two states.

7 0
3 years ago
I need help with this math problem it should be easy but im not good in math sooo...
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Angles in a triangle adds up to 180
All you do it 59+69 which is 128
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3 0
2 years ago
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Please answer!!!!!
telo118 [61]

Answer:

Step-by-step explanation:

y - 7 = -5/2(x - 2)

y - 7 = -5/2x + 5

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5 0
3 years ago
A chemical plant has an emergency alarm system. When an emergency situation exists, the alarm sounds with probability 0.95. When
Katen [24]

Answer:

the probability that a real emergency situation exists is 0.16 (16%)

Step-by-step explanation:

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P(E∩A)= probability that an emergency situation exists and the alarm sounds

P(E/A) =  probability that an emergency situation exists given that the alarm has sounded

7 0
3 years ago
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