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Scrat [10]
3 years ago
14

Is the inequality true or false? 8 + (2 x 4) ≥ 2^4 (^ - means exponent)

Mathematics
1 answer:
Lelu [443]3 years ago
6 0
No, it is not true
8+(2x4)= 512
2^4 = 16

512 is greater than 16 but is not equal
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5+5+5+5+5+5+5+5+5+5+111111111111111111111111222222222222222222222223333333333333333333333333333344444444444444444444444444555555
storchak [24]

Answer:

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Step-by-step explanation:

5 0
3 years ago
Read 2 more answers
Solve. (x + 3)^1/2– 1 = x
Natali [406]

Answer:

x=1

Step-by-step explanation:

(x + 3) ^{ \frac{1}{2} }  - 1 = x  \\  \sqrt{x  + 3}   - 1 = x \\  \sqrt{x + 3}  = x + 1 \\ square \: both \: sides \\ x + 3 =  {x}^{2}  + 2x + 1 \\  {x}^{2}  + 2x - x + 1 - 3 = 0  \\  {x}^{2}  + x - 2 = 0  \\ x ^{2}  + 2x - x - 2 = 0  \\ (x^{2}  + 2x) - (x  + 2) = 0 \\ x(x + 2) - 1( x + 2) = 0 \\ (x - 1)(x + 2) = 0 \\ x - 1 = 0 \\ x = 1 \\  \\  \\ x  +  2 = 0 \\ x =  - 2

8 0
3 years ago
Anna buys 12 pens and 20 pencils for a total cost of $16. One pen costs $0.40 more than a pencil. What would one pencil and one
vladimir2022 [97]

It is given in the question that

Anna buys 12 pens and 20 pencils for a total cost of $16. One pen costs $0.40 more than a pencil.

Let the cost of pencil is $ x .

Therefore cost of pen is

$(x+0.40)

According to the question

12(x+0.40)+20x =16

Distributing 12 and combining like terms, we will get

12x+4.8+20x=16\\32x = 11.2\\x = 0.35

Therefore cost of pencil is $0.35 and cost of pen is

0.35+0.40=0.75

3 0
3 years ago
What is the slope of the line y = 3?
bonufazy [111]

Answer:

slope = 0

Step-by-step explanation:

y = 3 is the equation of a horizontal line parallel to the x- axis.

Since it is parallel to the x- axis then slope = 0

5 0
3 years ago
Which expression results from using the distributive property: 7(x+3)
Katena32 [7]
Answer: a the first answer is right
6 0
3 years ago
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