All categories

3 years ago

Can anyone help me with this question please

Mathematics

1 answer:

klemol [59]3 years ago

8 0

Answer:

7. ∠CBD = 100°

8. ∠CBD = ∠BCE = 100°; ∠CED = ∠BDE = 80°

Step-by-step explanation:

7. We presume the angles at A are congruent, so that each is 180°/9 = 20°.

Then the congruent base angles of isosceles triangle ABC will be ...

∠B = ∠C = (180° -20°)/2 = 80°

The angle of interest, ∠CBD is the supplement of ∠ABC, so is ...

∠CBD = 180° -80°

∠CBD = 100°

8. In the isosceles trapezoid, base angles are congruent, and angles on the same end are supplementary:

∠CBD = ∠BCE = 100°

∠CED = ∠BDE = 80°

You might be interested in

*^%Brainliest 15 pounds Question 5 (2 points)

galben [10]

Answer:

Step-by-step explanation:

Separate into two parts

$\frac{4xy^{3} }{2xy^{2} } + \frac{8x^{2} {y}^{5} }{2x {y}^{2} }$

Simplify:

This is for the first fraction

$\frac{4x {y}^{3} }{2x {y}^{2} } = (4 \div 2)(x \div x)( {y}^{3} \div {y}^{2} )$

$2(1)( {y}^{3 - 2} )$

$2{y}$

Now for the second fraction:

$\frac{8 {x}^{2} {y}^{3} }{2x {y}^{2} } = ( 8 \div 2)( {x}^{2} \div x)( {y}^{5} \div {y}^{2} )$

$4( {x}^{2 - 1} )( {y}^{5 - 2} )$

$4x {y}^{3}$

Add both parts together

$2y + 4x {y}^{3}$

To turn this into the said formula, that would become:

$2 {x}^{0} {y}^{1} + 4 {x}^{1} {y}^{3}$

Where:

a=0

b=1

c=1

d=3

Any value with an exponent 0 except zero will be equal to 1

4 0

3 years ago

7pt= qt<br><br> PLEASE SHOW WORK

Elenna [48]

I hope this helps you :)

8 0

3 years ago

Nata [24]

Answer:

Huh

Step-by-step explanation:

6 0

3 years ago

True or False?

dsp73

Answer:

true

Step-by-step explanation:

i go to k12 i did this test

6 0

2 years ago

Simplify the exponential expression 48 ^ 1/2

tester [92]

Answer: the third option

Step-by-step explanation

5 0

3 years ago