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3 years ago

-2x-9y=-25 4x+9y=23 Help me

Mathematics

1 answer:

Tatiana [17]3 years ago

6 0

X=25/11 and y=17/11 if that’s what your asking for

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If B = {−13, −9, −7, −3}, choose the set A that will make the following statement false.

Svetach [21]

Answer: c.A is the set of rational numbers

Step-by-step explanation:

B ⊆ A means that every element of B is an element of A

B = { -13 , -9 , -7 , - 3 }

The element of B are negative integers , this mean that the element of A must also be integers therefore :

Option a is correct.

Option b is also correct

Rational numbers are numbers that can be express in the form a/b , examples are : 1/2 , 3/ 4 , 5/6 ...

clearly , this does not necessarily define A , so option c is the odd one out

5 0

4 years ago

For the scientific notation, write the standard form: 5.61 x 102

Alekssandra [29.7K]

I believe the exponential form above is 5.61 x $10^{2}$

Answer:

561

Step-by-step explanation:

A "scientific notation" is being used in order to express large numbers in its simplest form. This is commonly used in careers that use Mathematics very often like engineers or scientists because it makes their computation easier.

The "standard form" refers to the standard or traditional way of writing the numbers.

In order to get the standard form above, you have to check the "power of the number 10." The exponent above is 2. This means that you have to move the decimal point of 5.61 to the right twice. So, the answer is 561.

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3 years ago

*Due tonight, plz help*

aleksandrvk [35]

Answer:

the correct answer is 165

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3 years ago

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Give two ways to write the expression as a phrase 6+p

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A number(p) plus six
six plus a number(p)

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3 years ago

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2 years ago