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svp [43]
4 years ago
15

Does each pair of ratios form a proportion? yes or no

Mathematics
1 answer:
Tems11 [23]4 years ago
8 0

Yes, a ratio represents a proportion.

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19) Write the slope-intercept form of the equation of the line described by (-4,-5), parallel to y = -2x - 5.
bezimeni [28]

Step-by-step explanation:

Since is it parallel to the given line, we can directly take the slope from the given equation.

m = -2 according to the given equation.

Next, use the point (-4,-5) to write the point-slope form first.

y-(-5) = -2(x-(-4))

Then use basic algebra to put it into slope-intercept form, which is y = mx + b.

y + 5 = -2x - 8

y = -2x - 13

7 0
3 years ago
Which expression is monomial?<br>a. 1/x<br>b. 3x^.5<br>c. x+1<br>d. 7
Karolina [17]
Answer choice d (7) would be monomial because it's just one number by itself not attached to anything :)
7 0
3 years ago
Read 2 more answers
In a random sample of 75 individuals, 52 people said they prefer coffee to tea. 99.7% of the population mean is between 84/80/74
Dmitriy789 [7]
Using a 1-sample z-interval for the population proportion with confidence level 0.997, the sample probability is 0.69 with margin of error of 0.16, so between 0.69+0.16=0.85 of the population and 0.69-0.16=0.53 of the population prefers coffee.  84% and 54% are the correct answers.
7 0
4 years ago
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How to identify the segment bisector ?
N76 [4]

why did you white the next part out, im sure it held some information. anyways, judging from the picture the segment bisector is line QS, so draw a line (segment with arrows sticking out of its two sides) above the two letters QS.

4 0
4 years ago
What is (2x-7y)^2 simplified
worty [1.4K]

Answer:

4x² - 28xy + 49y²

Step-by-step explanation:

(2x - 7y)²

= (2x - 7yy)(2x - 7y)

Each term in the second factor is multiplied by each term in the first factor, that is

2x(2x - 7y) - 7y(2x - 7y) ← distribute parenthesis

= 4x² - 14xy - 14xy + 49y² ← collect like terms

= 4x² - 28xy + 49y²

5 0
3 years ago
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