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Komok [63]
2 years ago
13

8/3+(-9/4)=? ......................

Mathematics
2 answers:
Zigmanuir [339]2 years ago
4 0

Answer:

5/12

Step-by-step explanation:

make common denominater which is twelve 8 becomes 24 -9 becomes -21

devlian [24]2 years ago
4 0

Answer:

5/12

because we first need to find the equal denominator

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A recipe for cookies uses sugar and baking powder. The recipe uses uses 3/4 cups of sugar and 1/2 teaspoon of baking powder
satela [25.4K]

Answer:

5/4 or 1 . 1/4

Step-by-step explanation:

3/4 + 1/2 = 5/4 or 1 . 1/4

4 0
3 years ago
Select the correct answer.
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Add 5 to both sides of the equation.
x=-14+5
Add -14 and 5.
x=-9
8 0
3 years ago
Match the solution set of each of the following inequalities with its graph.
8090 [49]

Answer:

Step-by-step explanation:

From the picture attached,

            Number line                                                             Inequality

1). Arrow starting with a solid point from x = -2                   x ≤ -2

directing towards negative numbers of x                                                         2).Arrow starting with a hollow circle from x = 2                 x >2  

directing towards positive numbers of x

3). Arrow starting with a hollow circle from x = 2                x < 2 ⇒ x - 2 < 0  

directing towards negative numbers of x

4). Arrow starting with a solid circle from x = 2                   x ≥ 2 Or 2 ≤ x

directing towards positive numbers of x

5). Arrow starting with a hollow circle from x = -2                   x > -2

directing towards positive numbers of x

7 0
3 years ago
PLS HELP IM FAILING MATH!
oksano4ka [1.4K]

Answer:

1. Never true

2. Never true

3. Bad question!  Typo? (see discussion below)

4. Always true

5. Always false

Step-by-step explanation:

1. x - 13 = x + 1.  Subtract  x  from both sides of the equation, and you get -13 = 1.  False!  (Never true!)

2.  x + 1/2 = x - 1/2.  Subtract x from both sides:  1/2 = - 1/2.  False! (Never true!)

3. This one's weird, with two equal signs.  That's not unusual; multiple equal signs are often used when a chain of equalities is being displayed.  For instance, you can write  (3)(2x + 5) = (3)(2x) + (3)(5) = 6x + 15.  That's an example of the Distributive Property--the 3 is multiplied by both of the terms inside parentheses (shown after the first equal sign), then actually doing those multiplications produces the expression after the second equal sign.

OK!  This question says 2(x + 3) = 5x = 6 - 3x.  Take it in two parts.

a. 2(x + 3) = 5x   Distribute the 2.

2x + 6 = 5x   Now subtract 2x from both sides.

6 = 3x   Divide both sides by 3.

2 = x  So that first part is true only when x = 2.  Gaa!  That's not one of your answer choices.  Now, check out the second part

b.  5x = 6 - 3x  Add 3x to both sides.

8x = 6   Divide by 8

x = 6/8 = 3/4

It doesn't help to use the first and <u>third</u> expressions, either.

2(x + 3) = 6 - 3x   Distribute the 2

2x + 6 = 6 - 3x  Add 3x.

5x + 6 = 6   Subtract 6.

5x = 0   Divide by 5

x = 0

None of these is always false.  None of these is always true.

4.  x - 3 = 2x - 3 - x   Simplify the right side by combining the x terms.

x - 3 = x - 3  Aha!  Same expression on both sides!  Always true

5.  3(x - 5) = 2(x - 5) + x  Distribute the 3. Distribute the 2.

3x - 15 = 2x - 10 + x  Combine the x terms on the right.

3x - 15 = 3x - 10  Subtract 3x

-15 = -10  (Always false!)

7 0
2 years ago
Subtract: (3x2 − 8x + 3) − (−5x2 + 4x − 5)
Alenkinab [10]
The answer should be A).
4 0
3 years ago
Read 2 more answers
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