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frozen [14]
3 years ago
13

I need help with this i understand how to do ​

Mathematics
1 answer:
babunello [35]3 years ago
8 0

Answer: Angle DCE would be 12

Step-by-step explanation:

Assuming that angle BCD is right then just set up equation to equal to 90

4x+10+2x+8=90

then solve

6x+18+90

6x=72

x=12

You might be interested in
(8, 1) and (-1, 10)<br> Slope
gizmo_the_mogwai [7]

Answer:

<h2>The answer is 1</h2>

Step-by-step explanation:

The slope of the line between two points can be found by using the formula

m =  \frac{ y_2 - y _ 1}{x_ 2 - x_ 1}

where

(x1 , y1) and (x2 , y2) are the points

From the question is points are

(8, 1) and (-1, 10)

Substitute the values into the above formula and solve for the slope

That's

m =  \frac{10 - 1}{8 + 1}  \\  =  \frac{9}{9}   = 1

We have the final answer as

<h3>1 </h3>

Hope this helps you

7 0
3 years ago
Is the product of two imaginary numbers always imaginary?
Diano4ka-milaya [45]
No. i*i = -1

2i*3i=-6

now if they meant complex numbers the answer is still no

(2+4i)(2-4i) = 4-8i+8i-16 = -12
3 0
3 years ago
Lisa can paint a wall in four hours. Sissi needs eight hours to paint the wall. How long will it take if they are helped?
never [62]

Answer:

It will take very less time actually. we cannot say accurately because if two girls start to chat they will till next day

4 0
3 years ago
What is 7/8 in decimal
Pachacha [2.7K]
To get a decimal form of a fraction, divide the numerator by the denominator.
7/8 = 0.875
6 0
3 years ago
5 friends go out to lunch and order 4 pizzas. The friend divides the pizzas evenly. Find how much pizza each friend got as a dec
vichka [17]
Each friend gets 0.8 of a pizza.
7 0
3 years ago
Read 2 more answers
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