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omeli [17]
3 years ago
10

Find the LCM of the numbers using prime factorizations 18,45

Mathematics
1 answer:
andriy [413]3 years ago
5 0

Answer:

90

Step-by-step explanation:

18:

18*1=18

18*2=36

18*3=54

18*4=72

18*5=90

18*6=108

45:

45*1=45

45*2=90

45*3=135

Therefore, 90 is the correct answer

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Find the smallest number by which 248 should be subtracted to make them perfect square​
dimaraw [331]

Answer:

21.

Step-by-step explanation:

The next perfect square below 248 i s 225 ( = 15^2).

So the answer is 248 - 225 = 21.

4 0
3 years ago
Which expression has a value of 66? A. (16 ÷ 3.2) × 2 + 0.2 × (8 + 82) B. [(16 ÷ 3.2) × (2 + 0.2)] × 8 + 82 C. 16 ÷ [(3.2 × 2) +
Setler [38]

Answer: none

Step-by-step explanation:

(A)

(16÷32/10) ×2 + 0.2×(90)

Using bodmas principle ; solve bracket

(16×10/32)×2 + (2/10×90)

10+18 =28

(B)

{(16÷32/10) × (2+2/10)} ×90

Open brackets

{(16×10/32) × (22/10)} ×90

(5×11/5) ×90

11×90 = 990

(C)

16÷{(32/10×2) + (2/10×8)} +82

Open brackets, solve division first, dolled by addition

16÷(32/5 + 8/5) +82

16÷(40/5) +82

16÷8 +82

2+82= 84

(D)

[16÷(32/10 ×2) + 0.2× (90)]

16÷ (32/5) + 2/10 ×90

Solve division

16×5/32 + 18

5/2 + 18

L.c.m of denominator (2&1) =2

(5+36) / 2 = 41/2

=20.5

8 0
3 years ago
What is math compass used for ?
liq [111]
Ok so a compass, is a technical drawing instrument that can be used for inscribing circles or arcs. Compasses can be used for drafting, navigation and graphing.
6 0
3 years ago
"take a number x, double it and then take that result away from 10"<br><br>Write as an expression
Yuki888 [10]

Word Problem:

Take a number, <em>x</em>, double it and then take that result away from 10.

Expression:

10-(2x)

8 0
3 years ago
If the parent function is f(x) =mx+b, what is the value 9f the parameter b for the line passing through the pings (2,0) and (0,-
andrew11 [14]

Answer:

B) -4

Step-by-step explanation:

m= (0 - (-4)) / (2 - 0) = 4 / 2 = 2

f(2) = 2 * 2 + b = 0

f(0) = 2 * 0 + b = -4

b = -4

6 0
3 years ago
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