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ivann1987 [24]
3 years ago
13

So what's the use Mental Math to find 7 x 53 which expression could is definitely not the

Mathematics
2 answers:
Bess [88]3 years ago
8 0
Im not sure what you mean but the answer would be 371 
docker41 [41]3 years ago
5 0
7x50+ 7x3 would be easy mental math.
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Find the length of the leg of a right triangle with leg length b= 21.5 inches and the hypotenuse c= 31.9 inches. Use a calculato
sweet [91]

Answer:

23.6 (approximate value)

Step-by-step explanation:

  • a*a+b*b=c*c Pythagorean thereom
  • (21.5)^2 + b*b = (31.9)^2
  • b*b= 1017.61 - 462.25
  • √b*b= √555.36
  • b=23.6(approximate value)
8 0
3 years ago
There are 5 gallons of distilled water in science supplies. If 8 students each use an equal amount of distilled water and there
Maurinko [17]

Answer:

0.5 gallon

Step-by-step explanation:

let x refer to students

5 = 8x + 1

8x = 4

x= 0.5 gallon

7 0
3 years ago
If a baking tray is 700mm by 600mm, how many of 25cm in diameter can fit into the baking tray?
Trava [24]
1cm=10mm
700mm= 70cm
600mm=60cm

70cm:25cm=2,8 - on length only 2 fit into

60cm:25=2,4 - on width only 2 fit into

Two 25cm in diameter fit into the baking tray.
7 0
3 years ago
If f(x)=3x+2, find the following value:<br> f(4)=?
lubasha [3.4K]

Answer:

f(4)=14

Step-by-step explanation:

f(x)=3x+2

f(4)=3x+2

f(4)=3*4+2

f(4)=12+2

f(4)=14

Hope this helps!

3 0
3 years ago
So im doing triangles and all triangles equal 180 degrees but one corner = 32.1 another =95 the last one is ____? (remember it h
dexar [7]

Answer:

52.9

Step-by-step explanation:

180-32.1-95=

guessing you don't have a calculater or the patience to answer this

5 0
2 years ago
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