3 years ago

What are the x- and y-intercepts of the graph of -7x + 4y = -14

Mathematics

1 answer:

Zielflug [23.3K]3 years ago

4 0

Answer:

slope: 7/4

y-intercept:-7/2

graph (0, -7/2), (1,-7/4)

Step-by-step explanation:

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saw5 [17]

F(x)=165,000(1+.04)ⁿ
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3 years ago

Just before a referendum on a school budget, a local newspaper polls 402 voters to predict whether the budget will pass. Suppos

Sliva [168]

Answer:

21.21%

Step-by-step explanation:

Assume that proportion of support follows normal distribution.For resulting in defeat the proportion of support should less than 0.5.Given that the proportion of support is p= 0.52.

Sample size(n)= 402

We know that standard deviation is given as

$\sigma = \sqrt {\dfrac {p(1-p)}{n}}$

Now by putting the values

$\sigma = \sqrt {\dfrac{0.52\times 0.48}{402}}$

σ=0.0249

Proportion of support follows normal distribution with mean is 0.52 and standard deviation is 0.0249

We know that $Z=\dfrac{\bar{X}-\mu }{\sigma }$

$Z=\dfrac{0.5-0.52 }{0.0249}$

Z= -0.80

So P(Z<-.80) =0.2118 from standard table.

So the probability of news paper to predict defeat is 21.21%

7 0

3 years ago

Equivalent fractions to 28/32

Scrat [10]

7/8 there you go the right answer xD

7 0

3 years ago

Read 2 more answers

A laundry basket has 24 t-shirts in it. Four are navy,

Shtirlitz [24]

Answer:

The probability is of selecting a green shirt is 8

Step-by-step explanation:

24 - 4 = 20

20 - 12 = <u>8</u>

4 0

3 years ago

Given that 3+√5/4−√5 = a + b√5, find the values of “a” and “b”<br>URGENT PLZ ANSWER!

Vikki [24]

Answer:

Step-by-step explanation:

hello :

√(5/4)= √5/ √4 =√5/2 = (1/2)√5

3+√5/4−√5 = 3+(1/2)√5 so : a=3 and b= 1/2

6 0

3 years ago