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4 years ago

Please help I need it

Mathematics

1 answer:

vitfil [10]4 years ago

3 0

Answer:

$\frac{1}{3}$

Step-by-step explanation:

just consider the lengh:

$\frac{1}{3}$

or the width :

$\frac{3}{9}$

or the area:

$\sqrt{ \frac{3 \times 1}{9 \times 3} } = \sqrt{ \frac{3}{27} } = \sqrt{ \frac{1}{9} } = \frac{1}{3}$

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Please help me with this

drek231 [11]

Answer:

100 in²

Step-by-step explanation:

Since the figures are similar

the linear ratio of sides = a : b , then

ratio of areas = a² : b²

ratio of sides = 15 : 21 = 5 : 7

ratio of areas = 5² : 7² = 25 : 49

let the area of the smaller figure be x then by proportion

$\frac{25}{x}$ = $\frac{49}{196}$ ( cross- multiply )

49x = 4900 ( divide both sides by 49 )

x = 100

Area of smaller figure is 100 in²

7 0

3 years ago

Round 345,047 to the nearest thousand ten thousand hundred thousand

Korolek [52]

345,000 ; 350,00 ; 300,000.

8 0

3 years ago

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5000 and 500. The value of 5 in blank is blank times the value of 5 in blank

harkovskaia [24]

Sorry can you tell me what blank is.

7 0

4 years ago

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The midpoint of AB is M(3, 3). If the coordinates of A are (2, -1), what are the

Vika [28.1K]

Step-by-step explanation:

Hey there!!

It's so simple.

While finding the coordinates of any point if the midpoint is there it will be much easier. You must remember the midpoint formulae.

Let's simply work with it.

Here, A (2,-1) and midpoint M(3,3) are given.

Let another coordinate be B(x,y).

By midpoint formulae,

$midpoint(x.y) = \frac{x1 + x2}{2} ,\frac{y1 + y2}{2}$

Putting their values,

$m(3 , 3) = \frac{2 + x}{2} , \frac{ - 1 + y}{2}$

As they are equal, equating with their corresponding elements we get,

$3 = \frac{2 + x}{2}$

6= 2 + x

x = 6-2

Therefore, the value of a is 4.

Again,

$3 = \frac{ - 1 + y}{2}$

6 = -1 + y

Therefore, the value of y is 7.

Therefore, the coordinates are B (4,7)

Hope it helps....

7 0

3 years ago

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Which expression is equivalent to 1/4(2−5x+6) ? Please answer fast!

Alecsey [184]

If x=3 then 5x3=15-2=13+6=19x1/4=4 3/4 so that means that 2 1/4+2 1/2 could be equivalent

P.S.I just chose 3 because it was the first number to pop into my head
~Mathlete12321~

5 0

3 years ago

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