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muminat
3 years ago
6

9. Simplify the expression: 8(5x-3y) *

Mathematics
1 answer:
olasank [31]3 years ago
7 0

Answer:

40x- 24y

Step-by-step explanation:

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Find the volume of the pyramid. Write your answer as a fraction or mixed number.
tia_tia [17]

Answer:

V=lwh /3

Step-by-step explanation:

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3 years ago
Draw to show regrouping. Write how many tens and ones in the sum. Write the sum. This has me so confused.
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If the diagonals of a parallelogram are equal, then show that it is a rectangle.
Harlamova29_29 [7]

Answer:

Given: In parallelogram ABCD, AC=BD

To prove : Parallelogram ABCD  is rectangle.

Proof : in △ACB and △BDA

AC=BD  ∣ Given

AB=BA ∣ Common

BC=AD ∣ Opposite sides of the parallelogram ABCD

△ACB ≅△BDA∣SSS Rule

∴∠ABC=∠BAD...(1) CPCT

Again AD ∥ ∣ Opposite sides of parallelogram ABCD

AD ∥BC and the traversal AB intersects them.

∴∠BAD+∠ABC=180∘ ...(2) _ Sum of consecutive interior angles on the same side of the transversal is 

180∘

From (1) and (2) ,

∠BAD=∠ABC=90∘

∴∠A=90∘ and ∠C=90∘

Parallelogram ABCD is a rectangle.

4 0
2 years ago
What is the value of x of a complementary angle that is 10 and 2x
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ioda
About 55% of the time
8 0
3 years ago
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