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3 years ago

The line below are parallel. If the green line has a slope of -1/2, what is the slope of the red line?

Mathematics

2 answers:

Aliun [14]3 years ago

8 0

Answer: B. $\dfrac{-1}{2}$

Step-by-step explanation:

In the given picture, we have two lines area parallel, one is red and other is green.

We know that the slopes of parallel lines are equal.

Therefore, if the green line has a slope of $\dfrac{-1}{2}$ then ,the slope of red line will also be $\dfrac{-1}{2}$ because they are parallel.

Hence, B is the correct option.

Phoenix [80]3 years ago

7 0

Answer:

The slope of the red line is -1/2

Step-by-step explanation:

Parallel lines always have the same slope

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A palm tree casts a shadow that is 28 feet long. A 6-foot sign casts a shadow 8 feet long.

s2008m [1.1K]

Answer: The height of the palm tree is 21 feet.

Step-by-step explanation:

We can use a ratio to solve this:

Actual height to shadow for both objects. The fraction equivalents must be equal.

6/8 = x/28 . Cross multiply

6(28) = 8x

168 = 8x Divide both sides by 8 (8's "cancel" on the right)

168/8 =8x/8

21 = x . This gives us the tree's height as 21 feet.

Another way to solve this is to use the ratios, but simplify the first fraction

6/8 = 3/4

Then multiply the length of the shadow by 3/4

3/4 × 28 = height

28÷4 = 7 7 × 3 = 21

21 feet= the height of the palm tree.

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3 years ago

A)231*12 531*23 505*11 402*44 b) 516*25 893*72 860*91 c) 413*25 120*518 119*98 7*00*125 d) 7800*8600 980*37000 1860*890 5800*470

Allushta [10]

Answer:

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3 years ago

Sales prices of baseball cards from the 1960s are known topossess a skewed-right distribution with a mean sale price of $5.25and

Serga [27]

Answer:

c. Skewed-right with a mean of $5.25 and a standard error of$0.28

Step-by-step explanation:

As we have given that Sales prices of baseball cards have a right-skewed distribution with a mean $5.25 and a standard deviation is $2.80.

Now, We know that if standard deviation = σ

then, standard error = $\frac{\sigma}{\sqrt{n}}$

As, we have standard deviation = $2.80

then standard error will be $\frac{2.80}{\sqrt{100}}$

⇒ Standard error = $0.28

Hence, Option (c) is the correct option.

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3 years ago

tara paints 12 wall in 4 hour. she has 3 wall left to paint how long do you think that it will take her to paint the 3 remaining

Pavel [41]

12 divided by 4 equals to 3
she paints 3 wall per hour

the answer is : the remaining wall will take her 1 hour to paint

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3 years ago

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Segment AB has endpoints A(–4, 6) and B(1, 4). After a dilation, centered at the origin, the image of A is (–6, 9). Without meas

Ksivusya [100]

With A and its image one can get the dilation factor;
That is dilation scale factor = -6/-4 or 9/6 = 3/2
Therefore, to get the image of B we multiply the coordinates of B by the dilation factor;
(1,4) 3/2 = (1.5, 6)
Thus the image of B = (1.5,6)

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3 years ago

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