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2 years ago

Given that ABCD is a rhombus. Prove ∠1≅∠2.

Mathematics

1 answer:

natka813 [3]2 years ago

5 0

Answer:

1) ABCD is a rhombus

2) All sides of a rhombus are equal.

4) SSS

5) CPCTC

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A number + half of the number=15 what is the number?

blondinia [14]

Answer:

Step-by-step explanation:

let the number be n then half the number is $\frac{1}{2}$ n, then

n + $\frac{1}{2}$ n = 15

Multiply through by 2 to clear the fraction

2n + n = 30, that is

3n = 30 ( divide both sides by 3 )

n = 10

Thus the number is 10

8 0

2 years ago

Read 2 more answers

PLS HELPP ILL MARK BRAINLIST { have to get it right }

Sonbull [250]

Answer:

=−7

Step-by-step explanation:

(+3)2−5=11

(+3)(+3)−5=11

2+3+3+9−5=11

2+6+9−5=11

x-1=0

x+7=0

6 0

3 years ago

Find the value of each variable in the following parallelograms.

Stella [2.4K]

Answer:

x = 15

y = 7.5

Step-by-step explanation:

✔️Diagonals of a parallelogram bisect each other at 90°.

Therefore,

2x° + 60° + 90° = 180° (sum of triangle)

Solve for x

2x + 150 = 180

2x = 180 - 150

2x = 30

2x/2 = 30/2

x = 15

✔️2x = 4y (alternate angles/corresponding angles)

Plug in the value of x

2(15) = 4y

30 = 4y

30/4 = y

7.5 = y

y = 7.5

7 0

2 years ago

Let f(x) = x2 - x + 7 and g(x)= - 3x + 6. Find g(9) and f(g(9)).<br> 9(9)=(Simplify your answer.)

aleksklad [387]

Step-by-step explanation:

see the picture

maybe i am right or wrong i have juat tried

6 0

3 years ago

What is the value of this expression when a = 4, b = -5, and c = -7?

Ganezh [65]

Answer:

The value of the given expression is -878.08.

Step-by-step explanation:

Here, the given question is INCOMPLETE.

The complete question is:

Evaluate the expression for a = 4, b = -5, and c = -7. $4a^2b^{-2}c^3$

Here, substitute the vale of a = 4, b = -5 and c = -7, we get:

$4a^2b^{-2}c^3 = (\frac{4a^2c^3}{b^2}) = (\frac{4(4)^2(-7)^3}{(-5)^2})\\= (\frac{64 \times 343}{25}) =\frac{21,952}{25} = 878.08\\\implies 4a^2b^{-2}c^3 = 878.08 ( a = 4, b = -5 ,c = -7)$

Hence, the value of the given expression is -878.08.

8 0

2 years ago