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2 years ago

Which of the following ordered pairs make this equation true? Y = 2x - 7 A. (1,9) B. (-3, 4) C. (4,1) D. (-1, 5)

Mathematics

1 answer:

gregori [183]2 years ago

3 0

Answer:

(4,1)

Step-by-step explanation:

Using substitution you can determine that 2*4-7 is in fact equal to 1

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2(x+4)+4x simplify expression

OLEGan [10]

Answer:

6x+8

Step-by-step explanation:

2(x+4)+4x

2x+8+4x

6x+8

4 0

2 years ago

2 2/9+ 3 3/7 +1 4/9 enter sum in a box as a mixed number in simplest form

viva [34]

Answer:

Input Data :

Mixed Fraction A =

Mixed Fraction B =

Step-by-step explanation:

wrong

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2 years ago

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Use the Pythagorean Theorem to determine if the three numbers could be the measures of the sides of a right triangle. Assume tha

Mekhanik [1.2K]

I'm pretty sure the answer is yes

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2 years ago

Find the critical value t a/2 needed to construct a confidence interval of the given level with the given sample size. level 95%

stepan [7]

Α = 1- (95/100) = 1-0.95 = 0.05

p = 1- α/2 = 1- 0.05/2 = 1-0.025 = 0.975

Degrees of freedom, df = Sample size -1 = 11-1 = 10

From t-tables, with cumulative probability pf 0.975 and df of 10,
Critical value = 2.228

7 0

2 years ago

How can you find this distance (-3,7),(0,4) in words

Bezzdna [24]

Answer:

The distance between these two given points is:

$3\sqrt{2}$

Step-by-step explanation:

We are given two points:

(-3,7),(0,4)

The distance between two points (a,b) and (c,d) is given by the distance formula as:

$\sqrt{(c-a)^2+(d-b)^2$

similarly we can find the length of a line segment by considering the distance between the end points of the line segment.

So here (a,b)=(-3,7)

and (c,d)=(0,4).

Hence distance between these two points is given by:

$\sqrt{(0-(-3))^2+(4-7)^2}=\sqrt{(3)^2+(-3)^2}=\sqrt{9+9}\\ \\=\sqrt{18} \\\\=3\sqrt{2}$

6 0

3 years ago

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Which of the following ordered pairs make this equation true? Y = 2x - 7 A. (1,9) B. (-3, 4) C. (4,1) D. (-1, 5)​

Which of the following ordered pairs make this equation true? Y = 2x - 7 A. (1,9) B. (-3, 4) C. (4,1) D. (-1, 5)