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3 years ago

1. Diagonals of a rhombus intersect to form

Mathematics

1 answer:

lianna [129]3 years ago

7 0

Answer:

1. right angles.

2. equal

3. equal and parallel

4. supplementary

5. equal and parallel

6. equal and perpendicular

7. equal and supplementary

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How to solve this problem step by step. Make brainliest answer if its done. Please

sladkih [1.3K]

D is halfway between A and B

so the coordinates of D are (2,2)

E is halfway between A and C so the coordinates of E are (-1,1)

now you need to find the gradient/slope of DE and BC using the formula:

$\frac{y2 - y1}{x2 - x1}$

<h3>Gradient of DE: </h3>

SUB IN COORDINATES OF D AND E

$\frac{1 - 2}{ - 1 - 2}$

therefore the gradient of DE is 1/3.

<h3>Gradient of BC:</h3>

SUB IN COORDINATES OF B AND C

 $\frac{ - 2 - 0}{ - 3 - 3}$ 

therefore the gradient of BC is -2/-6 which simplifies to 1/3.

<h3>therefore, BC and DE are parallel as they both have a gradient/slope of 1/3 and parallel lines have the same gradient</h3>

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4 years ago

How to solve -2(5n+6)+5(2-7n)

Alex Ar [27]

Answer:

-45n-2

Step-by-step explanation:

Let's get rid of parenthesis first using distributive property!

-10n-12+10-35n

Combine like terms!

-10n-35n--12+10

-45n-2 would be the final expression

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3 years ago

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Alika [10]

Answer:

Step-by-step explanation:

Ejiro + her sister's age = 64

Ejiro is 8 years older so (64 - 8) ÷ 2 = 28 her sister is 28 years old and ejiro is 28 + 8 = 36 years old

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Answer: 30/250 and 45/375 would be two equivalent fractions.

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nlexa [21]

Then answer you seek is 133.

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