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3 years ago

WILL REWARD BRAINLIEST

Mathematics

2 answers:

Mashutka [201]3 years ago

8 0

Answer:

Option A. is the correct option.

Step-by-step explanation:

If a number is divisible by 5 it is not necessary that the number will be divisible by 10.

For example: 25 is the number divisible by 5 but not divisible by 10.

Or in other words a number divisible by 5 should be even to be divisible by 10.

So for the conditional statement : A number is divisible by 10 if and only if it is divisible by 5 will be false because any one out of these two statements is false. We know biconditional is true only when both the statements are true or false means both the statements should have same truth value.

Therefore Option A. is the correct option.

mars1129 [50]3 years ago

3 0

Answer:

A) It is false because at least one part of the biconditional is false

Step-by-step explanation:

It is false, because one part of the biconditional is false, this is because it is the case that there are numbers that are divisible by 5 but are not divisible by ten, this means that the conditional part is false, half of the number that are devisible by 5 are divisible by ten but not al of them. A biconditional is what is called in math when you you the stateme "If and only if".

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Does the line y + 4x = 7 pass through the point (1, 3)?

gulaghasi [49]

Answer:

yes

Step-by-step explanation:

y + 4x = 7

Put the point in and see if it is a true statement

3 +4(1) = 7

3+4 = 7

7=7

This is a true statement so the line passes through the point (1,3)

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3 years ago

Solve for n. −5/6n=40 What is the answer A.−56 B.−48 C.48 D.56

stiv31 [10]

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4 years ago

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3 years ago

Find the solution of this system of equations -x-4y=-37 -2x-5y=-53

zzz [600]

Answer:

The solution in point form is (9,7) and the equation would be x+9, y=7

Step-by-step explanation:

By using moving the -4y to the right side and by flipping the signs you can turn the equation -x-4y=-37 into x=37-4y.

With this new equation you can use the substitution method and replace the x in -2x-5y=-53 with 37-4y, making it look like this: -2(37-4y)-5y=-53.

Then you solve for y getting y=7.

With the value of y, you can plug that into the equation x=37-4y so it will look like x=37-4(7)

Then you solve for x getting x=9

And with that you get the point (9,7)

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3 years ago