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dangina [55]
1 year ago
8

Which expression is equivalent to (4 + 6)²?

Mathematics
1 answer:
mel-nik [20]1 year ago
5 0

Answer:

A) -20+48i

Step-by-step explanation:

(4+6i)^2\\(4+6i)(4+6i)\\16+24i+24i+36i^2\\**i^2=-1*\\16+48i+36i^2(-1)\\16+48i-36\\-20+48i

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Your round-trip drive to work is 4 3/10 miles. How many miles do you drive to and from work in 3 days?
lisabon 2012 [21]
12.9 would be the correct answer.
4 0
3 years ago
Represent the following sentence as an algebraic expression, where "a number" is the letter x. You do not need to simplify.
zloy xaker [14]

Answer:

The statement, one fifth of the square of a number is written as

\frac{1}{5}  {x}^{2}

Hope this helps you

6 0
3 years ago
Why can’t -3/4 be a integer
alexandr1967 [171]

Answer:

It can't be an integer because it's not a whole number. Integers are whole numbers, either positive or negative.

7 0
3 years ago
a fox a coyote and a wolf weigh a total of 120 pounds the ratio of the weight of fox to the weight of coyote is 3:8 the weight o
ira [324]
There is not enough information to calculate this. 

<span>Knowing the weight ratio of the fox to coyote as 3:8 in no way allows you to know the respective ratio of the wolf. To know the weight of the wolf would require knowing its ratio value, then the weights of all 3 is an easy calculation. </span>
<span>Example - 3:8:15 (f:c:w) is a plausible ratio based upon real-world weight averages for certain species/subspecies of the three. </span>
<span>- knowing the values of the 3 terms as 3:8:15 gives a total of 3+8+15 = 26 ratio values </span>
<span>- you then simply divide the total weight by this ratio value total; 120/26 = 4.62 </span>
<span>- so each ratio value is 4.62 units of weight*** </span>
<span>- now, simply calculate the weight of each canid by multiplying its ratio value by the unit of weight... </span>
<span>fox; 3 x 4.62 = 13.86 </span>
<span>coyote; 8 x 4.62 = 36.96 </span>
<span>wolf; 15 x 4.62 = 69.3 </span>
<span>Validate the ratios by adding the weights together (we should get 120) 13.86 + 36.96 + 69.3 = 120.12 </span>
<span>The total is slightly out because that 4.62 figure was a rounding up. </span>

<span>Now, the thing is, there is nothing given that allows us to know exactly what ratio value the wolf should be, I chose 15 myself because that is a real-world plausible value when compared to 3:8 for the other 2. Changing it to 16, say, means that there are now 27 ratio values total giving a ratio value of 120/27 = 4.44 obviously changing the weights of all 3.</span>
5 0
3 years ago
2. Express the given statement as an algebraic expression.<br>Sum ofa and 5 divided by 8​
bezimeni [28]

Answer:

An algebraic expression for <em>Sum of a and 5 divided by 8</em>​ is  \mathbf{\frac{a+5}{8}}

Step-by-step explanation:

We need to express the given statement as an algebraic expression.

Sum of a and 5 divided by 8​

Basically, we are given the expression in English sentence and we have to write algebraic expression.

It can be done in two steps:

Sum of a and 5 = We know that sum is denoted by + sign. So, we get (a+5)

Sum of a and 5 divided by 8​ = \frac{a+5}{8}

So, An algebraic expression for <em>Sum of a and 5 divided by 8</em>​ is  \mathbf{\frac{a+5}{8}}

7 0
3 years ago
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