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3 years ago

Subtract 8+7i from 4-16i

Mathematics

2 answers:

White raven [17]3 years ago

8 0

Answer:

-4 -23i

Step-by-step explanation:

(4-16i) - (8+7i)

Distribute the minus sign

4-16i -8-7i

Combine like terms

4-8 -16i -7i

-4 -23i

Arada [10]3 years ago

6 0

Answer

12-9i but in order its -9i+12

Step-by-step explanation:

since 8 and 4 are both positive add them up for 12 and 7i & -16 is -9i and the variable always comes first (a rule in math)

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X + 2 ≥ 2<br> solve and show work

Ilia_Sergeevich [38]

Answer:

X > (whatever the symbol is) 0

Step-by-step explanation:

kinda like algebra:

x + 2 > 2

X > 0

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3 years ago

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What is one effect of World Bank loans to developing countries?

matrenka [14]

One example is they help them develop projects

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2 years ago

Find f(-2) if f(x) = x + x + 7. f(-2) =

Lynna [10]

Answer:

f(-2) = 9

Step-by-step explanation:

Given that,

f(x) = x² + x + 7

We need to find the value of f(-2).

Put x = -2 in the given function.

f(-2) = (-2)² + (-2) + 7

= 4-2+7

= 9

Hence, the value of f(-2) is equal to 9.

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3 years ago

GaryK [48]

Answer:

$B_2=4\pi r^2$

see the explanation

Step-by-step explanation:

we know that

The area of the base of a cylinder is given by the formula

$B=\pi r^{2}$

where

r is the radius of the circular base

If the radius is doubled

then

$r=2r$

The new base area is

$B_2=\pi (2r)^{2}$

$B_2=4\pi r^2$

$B_2=4B$

therefore

The new area of the base is 4 times the area of the original base

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3 years ago

Where does the line through (1, 0, 1) and (4, −3, 3) intersect the plane x + y + z = 6?

Irina-Kira [14]

Parametrically for real t the line is

$(x,y,z) = (1-t)(1,0,1) + t(4,-3,3)$

$(x,y,z) = (1,0,1) + t(4-1,-3-0,3-1)$

$(x,y,z) = (1,0,1) + t(3,-3,2)$

That's three equations; we substitute into

$x+y+z=6$

$(1+3t)+(0-3t) + ( 1+2t)=6$

$2t=4$

$t=2$

$(x,y,z) = (1,0,1) + 2(3,-3,2) = (7,-6,5)$

The intersection is a single point (7,-6,5).

7 0

3 years ago

Subtract 8+7i from 4-16i​

Subtract 8+7i from 4-16i