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Tanya [424]
3 years ago
11

HELP PLEASE!! HURRY!

Mathematics
1 answer:
otez555 [7]3 years ago
3 0
The second choice is correct you are given that the rate of A is > B.
Slope formula =\frac{y2-y1}{x2-x1}

The rate of A is \frac{6-3}{4-2}=
 \frac{3}{2}
Thefore B is < \frac{3}{2} or 1.5

Choice 1) I choose the first 2 points from table
(3,6.3),(4,8.4)= \frac{8.4-6.3}{4-3}= \frac{2.1}{1} which is greater than A and not the correct answer

Choice 2) I choose the first 2 points from table
(3,2.25),(6,4.5)= \frac{4.5-2.25}{6-3} = \frac{2.25}{3}= 0.75
which is less than A and the correct answer

Choice 3) I choose the first 2 points from table
(3,5.4),(4,7.2)= \frac{7.2-5.4}{4-3} = \frac{1.8}{1} which is greater than A and not the correct answer
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In a test (+4) marks are given for every correct answers and (-3) marks are given for every incorrect answers 1) Tahiya answered
stealth61 [152]

Answer:

Tahiya attempted 3 incorrect answers.

Helmin attempted 11 incorrect answers.

Step-by-step explanation:

Correct = +4

Incorrect = -3

1) Tahiya got 12 correct answers and scored a 40, the number of incorrect answers was:

4*12-3I=40\\I=\frac{8}{3}\\I=2.67

2) Helmin got 5 correct answers and scored a -14, the number of incorrect answers was:

4*5-3I=-14\\I=\frac{34}{3}\\I=11.33

In both cases the number of incorrect answers obtained is a fraction, which means that either the data provided is inaccurate, or that the scores obtained by the students are approximate. Let's round the number of incorrect answers to the nearest whole answer.

Tahiya attempted 3 incorrect answers.

Helmin attempted 11 incorrect answers.

4 0
3 years ago
Prove the following statement by contradiction using an indirect proof. In a triangle angle A = 90°, then the triangle is a righ
kati45 [8]

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I prefer taking B

Step-by-step explanation : because when the degree is 90 than it should be a right triangle

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4 years ago
The Moores paid $6 more for skate rentals than the cotters did. Together the Two families paid $30 for skate rentals. How many p
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4 years ago
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Multiply, expressing the product in scientific notation. (9.16X10−3)(5.5X1016)
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8 0
3 years ago
If angle U = 8x + 9 degrees, and angle W = 8x - 5 degrees, then the measure of angle U is ___ degrees.
PolarNik [594]

Answer:

m<U = 97^{o}

Step-by-step explanation:

From the given question, it can be observed that angles U and W are supplementary. These are angles that add up to 180^{o}.

So that;

<U + <W = 180^{o}

(8x + 9) + (8x - 5) = 180^{o}

16x + 4 = 180^{o}

16x = 180^{o} - 4

16 x = 176

x = \frac{176}{16}

  = 11^{o}

The measure of angle U = (8x + 9)

                                        = 8(11) + 9

                                        = 88 + 9

                                        = 97^{o}

Thus, the measure of angle U is 97^{o}.

8 0
3 years ago
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