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3 years ago

What is the slope of a line parallel to y=-2x-3

Mathematics

1 answer:

Mademuasel [1]3 years ago

7 0

Answer:

Alright well use the the slope - intercept from y = mx + b to find the y - intercept b

b = - 6 Hope this helps Have a nice day :)

Step-by-step explanation:

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A parallelogram has sides of length 5 cm, 7 cm, and 7 cm. What is the length of the fourth side of the parallelogram?

zmey [24]

Answer:

the side is 5cm

Step-by-step explanation:

3 0

3 years ago

How can I solve 4x-2>3x+5

cluponka [151]

You would move over the -2 making the equation look like this 4x>3x+7. Then move the 3x to the other side of the equation making it look like this 1x>7. Thus the answer is x>7.

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2 years ago

How many solutions does s^2 -35=-35 have

Alexandra [31]

Answer:

1 solution

Step-by-step explanation:

s² - 35 = -35

Add 35 to both sides: s² = 0

s can only be 0, and 0 has no positives nor negatives, so one number.

4 0

2 years ago

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the radio of girls to boys in the junior high band is 5 to 7. At the beginning of the year, there were 72 students in the band.

ANTONII [103]

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2 years ago

According to a study done by Wakefield Research, the proportion of Americans who can order a meal in a foreign language is 0.47.

UNO [17]

Answer:

Probability that the proportion of Americans who can order a meal in a foreign language is greater than 0.5 is 0.19766.

Step-by-step explanation:

We are given that according to a study done by Wake field Research, the proportion of Americans who can order a meal in a foreign language is 0.47.

Suppose a random sample of 200 Americans is asked to disclose whether they can order a meal in a foreign language.

Let $\hat p$ = sample proportion of Americans who can order a meal in a foreign language

The z-score probability distribution for sample proportion is given by;

Z = $\frac{ \hat p-p}{\sqrt{\frac{\hat p(1-\hat p)}{n} } }$ ~ N(0,1)

where, $\hat p$ = sample proportion

p = population proportion of Americans who can order a meal in a foreign language = 0.47

n = sample of Americans = 200

Probability that the proportion of Americans who can order a meal in a foreign language is greater than 0.5 is given by = P( $\hat p$ > 0.50)

P( $\hat p$ > 0.06) = P( $\frac{ \hat p-p}{\sqrt{\frac{\hat p(1-\hat p)}{n} } }$ > $\frac{0.5-0.47}{\sqrt{\frac{0.5(1-0.5)}{200} } }$ ) = P(Z > 0.85) = 1 - P(Z $\leq$ 0.85)

= 1 - 0.80234 = 0.19766

Now, in the z table the P(Z $\leq$ x) or P(Z < x) is given. So, the above probability is calculated by looking at the value of x = 0.85 in the z table which has an area of 0.80234.

Therefore, probability that the proportion of Americans who can order a meal in a foreign language is greater than 0.5 is 0.19766.

4 0

3 years ago