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vazorg [7]
3 years ago
6

(2-5i)(4+7i)? How do u do this? HELPPPPPPPP

Mathematics
1 answer:
krek1111 [17]3 years ago
3 0
The "I"'s r variables, now u do 2-5 which sequels -2. now u do 4+7 and that ='s 11. now I think u take 11 and -2 and u subtract 11-(-2). or it could be change the negative into a positive and add them together.
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A rhombus and a square have one and the same side of 6 cm. The area of the rhombus is 4/5 of the area of the square. Find the he
Arada [10]
You will find the area the square and then find out what 4/5 of that area is.

A = bh
     6 cm x 6 cm 
A = 36 square cm

4/5 of 36 square cm
4/5 x 36
28 4/5 square cm

The area of the rhombus is 28 4/5 square cm.  Use this to solve for the height of the rhombus.

A = bh
<u>28 4/5</u> = <u>6 x h</u>
6            6
h = 4 4/5 cm

The height of the rhombus is 4 4/5 cm.
7 0
3 years ago
Simplify this expression: 4(x+3)+3(5-x)
prisoha [69]

Answer:

x+27

Step-by-step explanation:

Let's simplify step-by-step.

4(x+3)+3(5−x)

Distribute:

=(4)(x)+(4)(3)+(3)(5)+(3)(−x)

=4x+12+15+−3x

Combine Like Terms:

=4x+12+15+−3x

=(4x+−3x)+(12+15)

=x+27

Hope you find this Useful!

8 0
2 years ago
Read 2 more answers
Someone please help!
USPshnik [31]
Here are the log properties you need:
log(ab) = log(a) +log(b) \\  \\ log(\frac{a}{b}) = log(a) - log(b) \\  \\ log(a^n) = n log(a)
6 0
3 years ago
Math geometry please help me.
Orlov [11]

Answer:

Yes

Step-by-step explanation:

It passes the vertical line test.

if you draw vertical lines, it should hit the function only once, if it hits coordinates with the same x value (for example, (1,2) and (1,3)), it is not a function.

In the graph, each x value is only hit once.

8 0
3 years ago
Read 2 more answers
Find dcq pls thanks so much
Diano4ka-milaya [45]

Answer:

arc ABC = 196°

∠DCQ = 47°

Step-by-step explanation:

arc AD = 70°

∠D = 1/2 arc ABC = 98°

arc ABC = 98° * 2 = 196°

arc CD = 360° - arc AD - arc ABC = 360°-70°-196° = 94°

tangent chord angle DCQ = 1/2 arc CD = 1/2 * 94° = 47°

5 0
3 years ago
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