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3 years ago

What are the terms in the expression 2x−4y+8 ?

Mathematics

1 answer:

vazorg [7]3 years ago

5 0

Answer:

A. 2x, -4y, and 8

Step-by-step explanation:

If there is a minus sign in front of the 4 (-), add that to the expression. What you are just simply doing is separating the numbers up. For example:

12x - 8y + 4x

Now here, you have two of the same variables (x, y, etc). So, what you do is look at the last number that has the same variables, which is 4, and look at what the problem you will be solving, which is addition. So, very simply, you add then together!

12× + 4× = 16×

As you can see I kept the same variable. This is because, well, it is the same! Simply, just substitute in the 16× with the 8y. Now here is the tricky part, for some people. Do you see that there is a negative sign in front of the 8 (-)? Well! You have to substitute that in with the expression. No adding this or anything, just simply slide it next to the 16× because, we can not add nor subtract it with the 8y just because it has a different variable.

Your example answer would be: 16× - 8y

Hope this helps!

P.S. if you think this helped you at all, Brainliest me if ya want to. Have a great day!

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Navigate three times the difference of 12 and twice some number is equal to 36. find the number.

myrzilka [38]

3(12 - 2n) = 36
36 - 6n = 36
-6n = 0
n = 0 <== ur number

6 0

3 years ago

The nurse is taking care of a patient who has an order for Levaquin (Levofloxacin) 605 mg orally q6h. The pharmacy sends Levofla

MariettaO [177]

The nurse will give 12.1 milliliters of Levofloxacin

<h3>What are metric units?</h3>

These are the units that are used to measure quantities, and they can be converted among one another

The given parameters are:

Size = 605 mg
Dose = 50mg/5 mL

The number of milliliters the nurse will give is calculated by dividing the size by the dose, as follows:

$n = \frac{Size}{Dose}$

So, we have:

$n = \frac{605mg}{50mg/mL}$

Cancel out the common units

$n = \frac{605}{50/mL}$

This gives

$n = \frac{605}{50}mL$

Divide 605 by 50

$n = 12.1 mL$

Hence, the nurse will give 12.1 milliliters of Levofloxacin

Read more about unit factors at:

brainly.com/question/15369782

5 0

2 years ago

of the pairs of jeans sold at the jeans store, 45% are blue, 0.2 are black, and 1/8 are white; and the rest are other colors. Wh

Anna35 [415]

100 - 45 - 20 (0.2 = 20%) - 12.5 (1/8 = 12.5%) = 22.5%

8 0

3 years ago

In an arithmetic sequence, the nth term an is given by the formula an=a1+(n−1)d, where a1 is the first term and d is the commo

Dmitry_Shevchenko [17]

Answer:

$a_{10} = \frac{10}{65536}$

Step-by-step explanation:

The first step to solving this problem is verifying if this sequence is an arithmetic sequence or a geometric sequence.

This sequence is arithmetic if:

$a_{3} - a_{2} = a_{2} - a_{1}$

We have that:

$a_{3} = 40, a_{2} = 10, a_{3} = \frac{5}{2}$

$a_{3} - a_{2} = a_{2} - a_{1}$

$\frac{5}{2} - 10 = 10 - 40$

$\frac{-15}{2} \neq -30$

This is not an arithmetic sequence.

This sequence is geometric if:

$\frac{a_{3}}{a_{2}} = \frac{a_{2}}{a_{1}}$

$\frac{\frac{5}[2}}{10} = \frac{10}{40}$

$\frac{5}{20} = \frac{1}{4}$

$\frac{1}{4} = \frac{1}{4}$

This is a geometric sequence, in which:

The first term is 40, so $a_{1} = 40$

The common ratio is $\frac{1}{4}$ , so $r = \frac{1}{4}$ .

We have that:

$a_{n} = a_{1}*r^{n-1}$

The 10th term is $a_{10}$ . So:

$a_{10} = a_{1}*r^{9}$

$a_{10} = 40*(\frac{1}{4})^{9}$

$a_{10} = \frac{40}{262144}$

Simplifying by 4, we have:

$a_{10} = \frac{10}{65536}$

3 0

3 years ago

Ejiro is 8yrs older than her sister the sum of their ages is64yrs what is ejiro age in years

Alika [10]

Answer:

Step-by-step explanation:

Ejiro + her sister's age = 64

Ejiro is 8 years older so (64 - 8) ÷ 2 = 28 her sister is 28 years old and ejiro is 28 + 8 = 36 years old

8 0

3 years ago

Read 2 more answers