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3 years ago

Which expression has a value of 74 when x = 10, y = 8, z = 12

Mathematics

2 answers:

Rom4ik [11]3 years ago

4 0

B, because 10+40+24 equals 74

marusya05 [52]3 years ago

3 0

Pretty sure its b lol

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Question 6 of 10 Which choice is equivalent to the product below?

ohaa [14]

Answer: D

Step-by-step explanation:

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2 years ago

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Extended Problems, Extraneous Solutions

diamong [38]

Answer:

1a. 2 is the solution

1b. -3 is because square root of 1 doesn't equal -1.

1c.-3

Step-by-step explanation:

$(x + 2 = \sqrt{3x + 10}$

Square both sides

$(x + 2) {}^{2} = 3x + 10$

Remeber perfect square Rule

$(x + y) {}^{2} = {x}^{2} + 2xy + {y}^{2}$

So now we got

$x {}^{2} + 4x + 4 = 3x + 10$

${x}^{2} + x + 4 = 10$

${x}^{2} + x - 6 = 0$

Factor into binomial.

$(x + 3)(x - 2) = 0$

So our solution is 3 or 2. However, let's check our work.

$- 3 + 2 = \sqrt{3( - 3) + 10}$

$- 1 = \sqrt{1}$

However square root of 1 is 1. It could be 1 but in Math, We only take the principal square root which is positive always. So -3 isn't a solution.

So let try 2.

 $2 + 2 = \sqrt{3(2) + 10} = 4 = \sqrt{16} = 4 = 4$ 

So this is indeed the solution.

Make up equation for 2 and 3. Ask me if you need help.

5 0

2 years ago

A recipe calls for 5/6 cup of flour Dixie wants to make 3/5 dixie currently has 3/4 cups of flour does she have enough to make t

aleksandr82 [10.1K]

Answer:

Step-by-step explanation:

5/6 - 3/4

20 - 12 = 8

_____ __

24 24

Cancelling out, we have

=>1/3

She does not have enough cup of flour. She needs 1/3 more to be able to make the recipe.

Hope it helps 

5 0

3 years ago

What's 4/3÷5/3= plz make it make sense.

Korvikt [17]

4/3 ÷ 5/3

4/3 × 3/5 use this rule; a ÷ b/c = a × c/b

4 × 3/ 3 × 5

12/15

4/15 simplify. or decimal form; 0.8

hope this helps, God bless!

6 0

4 years ago

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How does the graph of the function g(x) = 5x + 1 differ from the graph of f(x) = 5*?

elena-14-01-66 [18.8K]

Answer:

C. It is translated up 1 unit.

Step-by-step explanation:

Translations of a function f(x)

To translate a function f(x) a units to the right, we have f(x-a)

To translate a function f(x) a units to the left, we have f(x+a)

To translate a function f(x) a units up, we have f(x) + a

To translate a function f(x) a units down, we have f(x) - a

In this question:

g(x) = 5x + 1

f(x) = 5x

This means that the function g(x) is 1 added to the function f(x), that is, it is translated up 1 units, and the correct answer is given by option c.

7 0

3 years ago