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Irina-Kira [14]

3 years ago

7

Every quadrilateral is a rhombus true or false

2 answers:

sveta [45]3 years ago

5 0

Answer:

false

Step-by-step explanation:

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.　　。　　　　　 ඞ 。 . 　　 • 　　　　•

　　ﾟ　　 Josie was not An Impostor.　。　.

　　'　　　 1 Impostor remains 　　　。

　　ﾟ　　　.　　　. ,　　　　.　 .

Bas_tet [7]3 years ago

3 0

Answer:

false

Step-by-step explanation:

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Answer this question to get marked as brainliest!!!!!

timurjin [86]

(15^3)^3

the rest are equal to 15^6:)

4 0

3 years ago

What two numbers have a sum of 217 and a <br> difference of 85?

Setler [38]

Answer:

the two numbers are 151 and 66

Step-by-step explanation:

x+y =217

x-y = 85

add the two equations

x+y =217

x-y = 85

-------------

2x = 302

divide by 2

2x/2 = 302/2

x = 151

now find y

x+y =217

151+y =217

subtract 151 from each side

y = 217-151

y =66

8 0

3 years ago

If a heptagon has an area of 105 in2, what is the measure of one side ?

kumpel [21]

Answer:

5.38 inches

Step-by-step explanation:

The formula for Area of an Heptagon

= A=7/4a²cot(180°/7)

Area = 105in²

Side a = ?

The formula for Side a

= √4A ×tan (180°/7)/7

= √4 × 105 × tan (180°/7) /7

= 5.37536 inches

Approximately = 5.38 inches.

4 0

3 years ago

What is the difference between the absolute value of -8 and the absolute value of 6?

lorasvet [3.4K]

The answer is A (2).

6 0

3 years ago

Find an expression equivalent to 1-sinx ^2/1-cosx ^2

madam [21]

Answer:

cot²x

Step-by-step explanation:

Using the identity

sin²x + cos²x = 1, then

1 - sin²x = cos²x

1 - cos²x = sin²x

Thus

$\frac{1-sin^2x}{1-cos^2x}$ = $\frac{cos^2x}{sin^2x}$ = cot²x

8 0

3 years ago