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uysha [10]
2 years ago
7

Simplify the expression. 2 (-5 - 7j)

Mathematics
2 answers:
Kaylis [27]2 years ago
8 0
The answer is: -10-14j
Natali [406]2 years ago
5 0

Answer:

- 14j -10. the answer online

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Help solve 88 please
Fofino [41]

Answer:

The equation of the line is y = -2x + 7

Step-by-step explanation:

* Lets study how to make an equation of the line from two point

- If the line passes through points (x1 , y1) and (x2 , y2)

- The form of the equation is y = mx + c, where m is the slope of the

 line and c is the y-intercept

- The rule of the slope is m = (y2 - y1)/(x2 - x1)

- The y-intercept means the line intersect the y-axis at point (0 ,c)

* Now lets solve the problem

∵ The line passes through points (-3 , 13) and (4 , -1)

- Let (-3 , 13) is (x1 , y1) and (4 , -1) is (x2 , y2)

∵ m = (y2 - y1)/(x2 - x1)

∴ m = (-1 - 13)/(4 - -3)

∴ m = (-14)/7 = -2

- Lets write the form of the equation

∵ y = mx + c ⇒ substitute the value of m

∴ y = -2x + c

- To find the value of c use one of the two points to substitute the

  values of x and y in the equation

∵ The line passes through (4 , -1)

∴ -1 = -2(4) + c

∴ -1 = -8 + c ⇒ add 8 to both sides

∴ -1 + 8 = -8 + 8 + c

∴ 7 = c

∴ y = -2x + 7

* The equation of the line is y = -2x + 7

4 0
3 years ago
Ps help it’s in for 10 mins
eimsori [14]

The correct options for the linear combinations of the vectors are given by:

A, B, C, D, E and F.

<h3>What is a span between two vectors?</h3>

The span between two vectors is the set that contains all linear combinations between these two vectors.

Supposing we have two vectors u1 and u2, as is the case in this problem, the infinitely many linear combinations have the following format:

k1u1 + k2u2

In which k1 and k2 are real numbers.

With k1 = 4 and k2 = -7, we get that option A is correct.

For option B, the vector 0 will always be a part of the span, as it can be formed with constants 0, hence it is correct.

The dimension of the span is of 3, as the vectors have 3 elements, hence option C is correct.

The underlying vectors will always also be part of the span, as they can be formed with their constant 1 and the others at 0, hence options D and F are correct.

The size of the span of any vectors is of infinity, hence option E is correct while option G is not.

More can be learned about linear combinations at brainly.com/question/15885826

#SPJ1

3 0
1 year ago
Which of the following phases are expressions
valentinak56 [21]
Attach a picture of the question please.
4 0
3 years ago
Which prism has a greater volume?<br><br> Prism ____
Nataly_w [17]
Prism B
7 times 1 times 2 =14
2 times 3 times 3=18
5 0
3 years ago
Read 2 more answers
Y=x+1<br> Y=-x-1<br> Could you help me please Help me
RideAnS [48]

Answer:

X+1=x-1...

I feel you should revise the question

Step-by-step explanation:

Y=Y

7 0
3 years ago
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