3 years ago

What us the value of (-7+3i)-(2-6i)a. -9+9ib.-9-3c.-5-3id.-5+9i

Mathematics

1 answer:

WITCHER [35]3 years ago

6 0

The answer is A. -9+9i

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at the amusement park each student is given $16 for food this covers the cost of two meals plus $4 for snacks how much money doe

Igoryamba

(16 - 4) ÷ 2
This would give you $6, so that is how much they expect you to spend per meal.

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3 years ago

What is the sum of the first five terms of a geometric series with a1 =20 and r =1/4?

drek231 [11]

The sum of the first n terms in a geometric sequence given the first term (a1) and the common ratio (r) is calculated through the equation,

Sn = (a1(1−r^n) / (1−r)

Substituting the known terms,
Sn = (20)(1 - (1/4)^4)) / (1 - 1/4)
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3 years ago

Simplify the expression. (3x2 – 4x + 1) + (-x2 + x – 9)

LuckyWell [14K]

$(3x^2 - 4x + 1) + (-x^2 + x - 9)=\\3x^2-4x+1-x^2+x-9=\\2x^2-3x-8$

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3 years ago

Read 2 more answers

What is the slope of x+y=7,x-y=8

slava [35]

Step-by-step explanation:

The slop is M= 1÷x-y-xy

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4 years ago

Find the equation of the line perpendicular to the 13x-3y=9 and passing through (-5,0)

aev [14]

9514 1404 393

Answer:

x +4y = -5

Step-by-step explanation:

The equation of the perpendicular line can be found by swapping the x- and y-coefficients and negating one of them. The new constant can be found by substituting the point values into the equation.

3x +12y = 3(-5) +12(0)

3x +12y = -15

We notice that all of the values include a factor of 3. We can divide that out to put the equation in standard form:

x + 4y = -5

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3 years ago