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Citrus2011 [14]
3 years ago
13

What is 3/7 rounded to a. 0 b. 1/2 c. 1

Mathematics
1 answer:
Dmitry_Shevchenko [17]3 years ago
5 0

Answer: b. 1/2.

Step-by-step explanation: 3/7 in decimal form is 0.42, which is close to 1/2 (0.5) than to 0.

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Axis of symmetry for f(x) = -2x2 + 20x -42
Ksenya-84 [330]
For the function f(x)=2x^2 +20x-42

We can use the formula for the axis of symetry, which is x= \frac{-b}{2a}

With the values substituted, we get...

\frac{-20}{2(-2)} =5

Therefore the axis of symmetry is x=5 
8 0
4 years ago
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The table below represents ordered pairs that satisfy the functions f(x) and g(x). A 3-column table has 4 rows. Column 1 is labe
allsm [11]

Answer:

B and D are the correct answers.

Step-by-step explanation:

9 0
3 years ago
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Write a vector equation of the line that passes through point P(-4,11) and is parallel to a=[-3,8]. Then write parametric equati
Assoli18 [71]

Answer:

\vec l = (-4, 11) + t\cdot (-3,8), x = -4 - 3\cdot t and y = 11 + 8\cdot t

Step-by-step explanation:

The vector equation of the line is:

\vec l = \vec P + t \cdot \vec A

\vec l = (-4, 11) + t\cdot (-3,8)

The parametric equations of the line are:

x = -4 - 3\cdot t and y = 11 + 8\cdot t

4 0
3 years ago
What is the value of y? 3y+10/4=2y y=−10 y = 2 y = 5 y = 10
Salsk061 [2.6K]

Answer:

i worked out the equation provided and all i get is  (y = -2.5)

Step-by-step explanation:

5 0
4 years ago
Two students from a group of eight boys and 12 girls are sent to represent the school in a parade.
harkovskaia [24]
The answer is 62/95. You determine this by calculating the probability of both students being girls. 

Probability first student is girl: 12/20
Probability second student is girl: 11/19
Multiply 12/20 * 11/19 = 132/380 or 0.347
Probability of both students not being girls: 1 - 0.347 = 0.653 or 62/95
4 0
3 years ago
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