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Akimi4 [234]
3 years ago
13

Which of the following statements is logically equivalent to "If I study, then I get better grades"? If I do not study, then I d

o not get better grades. If I get better grades, then I study. If I do not get better grades, then I do not study. If I get better grades, then I do not study.
Mathematics
2 answers:
saul85 [17]3 years ago
3 0
It would go along with, "if I get better grades, then I study."
AleksandrR [38]3 years ago
3 0
I would think that the correct answer is the 1st one: If I do not study, then I do not get a better grade. 

I think this would be correct because it's basically the same as the sentence they give you! For a better understanding of this, go to:   <span>https://en.wikipedia.org/wiki/Logical_equivalence</span>

I hope this helps you out! 
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Which line is a graph of the equation: 2x + 5y = -10?
Lady bird [3.3K]

Answer:

D

Step-by-step explanation:

2x + 5y = - 10         Subtract 2x from both sides

5y = -2x - 10           Divide by 5

y = -2x/5 - 10/5      

y = 0.4x - 2

The slope is minus so the line is going from lower right to upper left as B and D are doing.

The y intercept is - 2. B goes through + 2 so it is not the answer.

The answer is D

3 0
2 years ago
Find f(-2) for f(x) = 2(4)x . will give brainliest for correct answer ​
Serhud [2]

Answer:

D

Step-by-step explanation:

This questions asks use to find what f(x) or y is, when x is equal to -2.

So, substitute -2 in for x in the equation.

f(x)=2(4)^x

f(-2)=2(4)^-2

Evaluate the exponent. Negative exponents follow this rule:

b^-x= 1/b^x

We have 4^-2. This will become 1/4^2 or 1/16

f(-2)=2(1/16)

Multiply

f(-2)=2/16

This fraction can be simplified. Both the numerator (top number) and denominator (bottom number) can be divided by 2.

f(-2)=2/2 / 16/2

f(-2)= 1/8

The correct choice is D. 1/8

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3 years ago
A cat is stuck in a tree looking down at firemen, the cat sat at a 20 degree angle
Svetach [21]

Answer:

BC=sin(62∘)⋅22≈19.42

8 0
2 years ago
Write an expression for “Triple the sum of 33 and b”. *
IrinaK [193]

Answer:

99+3b

Step-by-step explanation:

The original equation would be 3(33+b), but simplifying it would get 99+3b.

8 0
2 years ago
Solve the following absolute value equation <br> | x+5 | = 11
Mazyrski [523]

Answer:

X is 6 or -6

Step-by-step explanation:

In absolute value it makes everything positive

5 0
2 years ago
Read 2 more answers
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