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Marina86 [1]
3 years ago
6

Explain how you used mental math

Mathematics
2 answers:
andriy [413]3 years ago
4 0
Addition, I would use the principles of addition. 
DIA [1.3K]3 years ago
4 0
Addition is the correct answer
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3x+2y=8 how to solve
GarryVolchara [31]
8-3x
Divide the whole thing by 2 so it would be y=4-1.5x
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3 years ago
Add. Write your answer as a fraction in simplest form. 9/10 +(− 4/5 )
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Read 2 more answers
What is the solution to −1/4(d+1)<2
kogti [31]

Answer:

d > -9

Step-by-step explanation:

-\dfrac{1}{4}(d + 1) < 2

First, multiply both sides by -4. You must also change the inequality sign since you are multiplying both sides by a negative number.

-4 \times \left(-\dfrac{1}{4}\right)(d + 1) > 2 \times (-4)

d + 1 > -8

Subtract 1 from both sides.

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3 years ago
In circle Q, ∠RQS ≅ ∠SQT. Which statement must be true? ≅ ∠RQT ≅ ∠RST RQ ⊥ QT RS ≅ ST
Alex
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8 0
3 years ago
Read 2 more answers
Consider this quadratic equation:
zhenek [66]

Answer:

a=2

b=0

c=12

Step-by-step explanation:

The standard form of a quadratic equation is ax²+bx+c=0

Here's the given equation:

2x²+12=0

You might notice that the term bx is not there (there is just ax² and c). That means that b is 0.

The term 2x² is the term ax² in this equation. The coefficient in the term is 2, so that means that a is 2

12 has no variable, so that means it'll be c in the equation.

Hope this helps!

6 0
3 years ago
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