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ycow [4]
3 years ago
13

Please give me the answers to these questions. The questions are in the picture above. If you’re going to give me the answers sh

ow your work.
Pls answer them fast, I don’t have so much time.

Mathematics
1 answer:
Levart [38]3 years ago
7 0

Answer:

1. D

2. A

3. C

Step-by-step explanation:

1. Given

6-\dfrac{1}{2}z=\dfrac{2}{3}

Multiply the equation by 6:

6\cdot 6-6\cdot \dfrac{1}{2}z=6\cdot\dfrac{2}{3}\\ \\36-3z=4

Hence,

-3z=4-36\\ \\-3z=-32\\ \\3z=32\\ \\x=\dfrac{32}{3}

2. Given

\dfrac{3y}{2}+\dfrac{ky}{4}=6

Multiply the equation by 4:

\dfrac{3y}{2}\cdot 4+\dfrac{ky}{4}\cdot 4=6\cdot 4\\ \\6y+ky=24

Use distributive property:

y(6+k)=24\\ \\y=\dfrac{24}{6+k}

3. Given

3-(w+2)>4+2w

Open the brackets using distributive property:

3-w-2>4+2w\\ \\1-w>4+2w

Hence,

1-w>4+2w

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Evaluate each function following the specification.
telo118 [61]

Answer:

#3 a. g(-1) = 2, g(0) = 3, and g(1) = 2

b. No restrictions for all real numbers

\#4 \  a. \ h(-1) = \dfrac{1}{3}, \  h(0) =0, \  h(2) =  \infty

b. Yes, <em>x ≠ 2</em>

Step-by-step explanation:

#3 The function is given as g(x) = -x² + 3

a. From the given function, by plugging in the value of 'x' in the bracket, we have;

g(-1) = -(-1)² + 3 = -1 + 3 = 2

g(-1) = 2

g(0) = -0² + 3 = 3

g(0) = 3

g(1) = -1² + 3 = -1 + 3 = 2

g(1) = 2

g(-1) = 2, g(0) = 3, and g(1) = 2

b. The given function g(x) = -x² + 3 for finding the value of <em>g</em> can take any value of <em>x</em> which is a real number

Therefore, therefore, there are no restrictions

#4 a. The given function is given as follows;

h(x) = \dfrac{x}{x - 2}

By substitution, we get;

h(-1) = \dfrac{-1}{(-1) - 2} = \dfrac{-1}{-3} = \dfrac{1}{3}

\therefore h(-1) = \dfrac{1}{3}

h(0) = \dfrac{0}{0 - 2} = \dfrac{0}{-2} =0

\therefore h(0) =0

h(2) = \dfrac{2}{2 - 2} = \dfrac{2}{0} = \infty

\therefore h(2) =  \infty

h(-1) = \dfrac{1}{3}, \  h(0) =0, \  h(2) =  \infty

b. From the values of the function, we have that h(x) is not defined at x = 2

Therefore, there is a restriction for <em>x</em> in the function, which is <em>x ≠ 2</em>

3 0
3 years ago
Please Help..........
Troyanec [42]
Your answer should be 31
Tell me if it was correct?
Thanks!
8 0
3 years ago
What is the expression under the radical sign in the quadratic formula called? *
morpeh [17]
<h3>Answer: C) Discriminant</h3>

The formula for the discriminant is

d = b^2 - 4ac

If d < 0, then there are no real number solutions

If d = 0, then you have exactly one real solution

If d > 0, then you have two different real number solutions

6 0
3 years ago
What is this Simplify as √16y¹6
ELEN [110]

Answer:

6y^1^6

Step-by-step explanation:

I hope this has Helped :)

7 0
1 year ago
Tell whether the given value is a solution of the inequality.<br> x + 1 &gt; 10; x = 9
Oliga [24]

Answer:

given x+1 > 10,

x > 10 - 1

x > 9

which means x MUST BE more than 9 , which also means 9 isnt included in the inequality therefore x = 9 is not a solution.

6 0
3 years ago
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