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3 years ago

Please, help. I need to prove this.

Mathematics

1 answer:

jeyben [28]3 years ago

4 0

Answer:

2. angle BAD is equal to angle DCB?

3. angle CBA is equal to angle ADC, then

4.triangle BEA is equal to triangle DEC and triangle BEC is equal to DEA

Step-by-step explanation:

since line BCD is equal to line DAB

AND line CBA is equal to line ADC

and because BEA triangle equals DEC, angles BEA and DEC are congruent

and angle BEC is equal to DEA

and yeah your right, it would be supplementary.

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What is the steps to this equation<br> 7<br> - 2 5/7

SashulF [63]

7 - 2 5/7
= 7 - 19/7
= 49/7 - 19/7
= 30 / 7
= 4 2/7

8 0

4 years ago

Walter is helping to make cookies for a basketball tournament. He's made 15 cookies so far. His coach asked him to make at least

Hoochie [10]

Answer:

$5\leq x\leq 40$

Here, $x$ denotes the additional cookies that need to be made by Walter besides 15 cookies made by him so far

Step-by-step explanation:

Number of cookies made by Walter so far = 15

He is asked by his coach to make at least 20 cookies but no more than 55.

Let $x$ denotes the additional cookies that need to be made by Walter besides 15 cookies made by him so far.

The inequality is $20\leq x+15\leq 55$

Now solve this inequality.

$20\leq x+15\leq 55\\20-15\leq x\leq 55-15\\5\leq x\leq 40$

4 0

3 years ago

Whats The CORRECT answer ?

KiRa [710]

Answer:

(B) 25%

Step-by-step explanation:

40 - 30 = 10

A $10 markdown rate was placed on the trousers.

10/40 = 1/4

That means a 1/4, or 0.25 (25%), markdown rate was placed on the trousers.

Hope it helps (●'◡'●)

6 0

3 years ago

Find the mean of the following 2x-5y,5x+2y,8x+6y,x-y

White raven [17]

Answer: 4x + 0.5y

Step-by-step explanation:

Concept:

Here, we need to understand the idea of the mean (average).

The "mean" is the "average" you're used to, where you add up all the numbers and then divide by the number of numbers.

If you are still confused, please refer to the attachment below for a graphical explanation.

Solve:

**Disclaimer** I assume the question is asking for the arithmetic mean instead of geometric. If it was, then you can refer to my answers. If it was not, then you can point it out and I will redo the question.

Terms: 2x-5y, 5x+2y, 8x+6y, x-y

Number of terms: 4

[(2x-5y) + (5x+2y) + (8x+6y) + (x-y)] / 4

=[2x + 5x + 8x + x + 2y - 5y + 6y - y] / 4

=[16x + 2y] / 4

=4x + 0.5y

Hope this helps!! :)

Please let me know if you have any questions

3 0

3 years ago

PLS TELL ME Is this correct? PLS TELL ME

Lesechka [4]

Answer:

check the last 2 in each section

Step-by-step explanation:

when you multiply both sides of an inequality, you have to switch the signs. so > would become <, and vice versa.

6 0

3 years ago