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Anvisha [2.4K]
2 years ago
11

Which of the sums below can be expressed as 8(2 + 7)?

Mathematics
2 answers:
Alika [10]2 years ago
3 0
D. is the correct answer I believe
Andrei [34K]2 years ago
3 0
Its D. 8*2=16 & 8*7=56
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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
Marianne buys 16 bags of potting soil that comes in 5/8 pound bags. How many pounds of potting soil did Marianna buy?
a_sh-v [17]
10

16×5=80
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4 0
2 years ago
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Answer:

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Step-by-step explanation:

Round the $39.00 to $40.00 then add it all together because you can't forget the taxes.

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Grade 7 Need help with proportions (PICTURE INCLUDED)
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Look at the expression you entered in the table in part C. Write them backward as a sum, starting with the amount from month 12.
atroni [7]

Answer: =

Write the expressions backward from month 12 to month 1 to get this series:

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Convert the series to sigma notation, and find the sum of the 12 terms in the series:

11

S12 50(1.003)

ko

50(1 - 1.00312)

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Step-by-step explanation:

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