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nexus9112 [7]
3 years ago
7

Tell whether the valuation is a solution of the inequality r + 4 > 8 ; r = 2

Mathematics
1 answer:
aleksandr82 [10.1K]3 years ago
3 0

Answer:

Not a solution.

Step-by-step explanation:

Step 1: Write inequality

r + 4 > 8

Step 2: Solve for <em>r</em>

  1. Subtract 4 on both sides: r > 4

Step 3: Determine

r = 2

2 > 4 = FALSE

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What is the side length of a cube with a volume of 216 cubic units?
hichkok12 [17]

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The area for the volume of a cube -

s³ , s = side

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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
Janice deposited $750 in a savings account that earns 3.5% simple interest. How much interest has Janice earned by the end of th
Ronch [10]
Janice deposited $750 and a savings account earns 3.5% simple interest.
r = 3.5% = 0.035
I = $750 * 0.035 
I = $26.25
Answer:
Janice has earned
D ) $26.25
8 0
3 years ago
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