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Fofino [41]
3 years ago
12

Free brainless answer pleaseeee and morw

Mathematics
1 answer:
sergejj [24]3 years ago
7 0
1. alternate interior angles, x= -10
2. corresponding angles, x= 30
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I marked all 3 parts. I need to know part C (the shaded part). anybody mind helping?​
Mnenie [13.5K]

Answer:

Area of shaded part ABCEF = 66 sq.cm

Step-by-step explanation:

AB = 8cm

CD = 8cm

Let DE = x cm

CE = 3x cm

CD =  CE + DE = 8cm

        x + 3x = 8

4x = 8

x = 8/4 = 2 cm

DE = 2cm

CE = 3 * 2 = 6 cm

Area of triangle ADE = 1/2 * base * height

                                   = 1/2 * DE * AD

                                    = 1/2 * 2 * 11 = 11 sq. cm

Area of triangle AEF = Area of triangle ADE = 11 sq. cm

Area of Rectangle ABCD =  l * b = 8 * 11 = 88 sq.cm

Area of shaded part ABCEF =  Area of Rectangle ABCD - (Area of triangle AEF + Area of triangle ADE)

    = 88 - ( 11 + 11 )  = 88 -22 = 66 sq.cm

6 0
3 years ago
What is the domain of g?<br><br><br><br><br>​
wariber [46]

Answer:

The answer is -9,9 Its funny cuz I just did this problem on Khan academy

Step-by-step explanation:

Can I get brainliest

5 0
3 years ago
Read 2 more answers
X+40+4x-5=6x+20 can I get some help with this problem please and thanks.
laila [671]

Answer:

the answer is c=−1/20x+7/4

Step-by-step explanation:

6 0
3 years ago
The quadrilateral ABCD has area of 58 in2 and diagonal AC = 14.5 in. Find the length of diagonal BD if AC ⊥ BD.
MAXImum [283]
We know that

<span>The formula for the area of a quadrilateral with perpendicular diagonals is
</span>A=(0.5)*(D1*D2)
A=58 in²
D1=AC=14.5 in
D2=BD=?

so

D2=2*A/D1-----------> 2*58/14.5-----------> D2=8 in
BD=D2=8 in

the answer is
BD=8 in
5 0
3 years ago
Read 2 more answers
Peyton is going to invest $71,000 and leave it in an account for 18 years. Assuming the interest is compounded continuously, wha
rewona [7]

Answer:

2.23

Step-by-step explanation:

4 0
3 years ago
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