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Sonja [21]
4 years ago
12

Can you help me with5 1/4 × 3 7/8

Mathematics
2 answers:
Sholpan [36]4 years ago
4 0
In decimal form the answer is 20.34375
SashulF [63]4 years ago
3 0
19.57
because 1/4 × 7/8=4.57. 5×3=15+4.57=19.57
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Do both of them for 50 points
erastovalidia [21]

Answer:

1) 5.44, 2) 3.9

Step-by-step explanation:

1) a/b + 2b - a^2 when a = 1.4 and b = 0.2

plug in the values:

1.4/0.2 + 2(0.2) - (1.4)^2 = 7 + 0.4 - 1.96 = 5.44

2) a[b-2c]^3 - d/e when a = 2, b = -0.75, c = -1, d = 0, e = -12 5/7 (rewritten to -89/7 = 12.71)

again, plug in the values:

2[-0.75-2(-1)]^3 - 0/12.71 = 2[1.25]^3 - 0 = 2[1.95] = 3.9

5 0
3 years ago
How do you simplify -2x(x+3)-(x+1)(x-2)
Elena L [17]
1. Distribute the -2x with the (x+3)
2.Multiply (x+1) and (x-2) which is (x2- x -2)
So far it should look like (-2x^2 -6x) - (x^2-x-2)
3. Distribute out the negative
Should look like this -2x^2 -6x - x^2+x+2
4. Lastly combine like terms

Your result should be:
-3x^2 - 5x + 2

Hope this helps!
8 0
3 years ago
Read 2 more answers
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g100num [7]
5 per minute is the answer.

4 0
3 years ago
Togo flew his ultralight plane to a landing field 30 miles away. With the wind, the flight took 3/5 hours. Returning against the
konstantin123 [22]

Answer:

Step-by-step explanation:

answer is W = 7 and A = 43.

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A sequence of digits has the property that each pair of successive digits, taken in the order written, forms a decimal numeral r
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Answer:

Concept: Mathematical Sequences

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3 years ago
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