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kvv77 [185]
2 years ago
15

Who won the race between the two balls of string

Mathematics
1 answer:
motikmotik2 years ago
7 0
The higher one I think
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Find x on this special right triangle
tigry1 [53]

Answer:

The answer is 7

Step-by-step explanation:

We know than Tan45=1

Tanx=opp/adj

tan45=y/(7\sqrt{2})/2

Thus y=7\sqrt{2}/2

We know by pythagoras theorem that hyp^2=side^2+side^2

x^{2}=((7\sqrt{2} /2)^{2}+(7\sqrt{2}/2)^{2}

x^{2}=(49(2)/4)+(49(2)/4)

x^{2}=(49/2)+(49/2)

x^{2}=(98/2)

x^{2}=49

x=7

6 0
2 years ago
Mallory has $5.40 in her wallet if this is 18% of her monthly allowance what is her monthly allowance
poizon [28]
<span>Her monthly allowance is $30.</span>
5 0
3 years ago
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Divide 29 into two parts so that the sum of the squares of the parts is 425. Find the value of each part.
alina1380 [7]

Answer:

13 and 16.

Step-by-step explanation:

Let the 2 parts be x and y, then:

x + y = 29

x^2 + y^2 = 425

From the first equation y = 29 - x so substituting in second equation, we get:

x^2 + (29 - x)^2 = 425

x^2 + 841 - 58x + x^2 - 425 = 0

2x^2 - 58x + 416

x^2 - 29x + 208 = 0

208 = 2*2*2*2*13

= 16 * 13

So factoring we get:

(x - 13)(x - 16) = 0

x = 13 ,16

So the numbers are 13 and 16.

3 0
2 years ago
PLEASE HELP!!! find the area of the yellow region. round to the nearest tenth
netineya [11]

Answer:

5.4

Step-by-step explanation:

First, you calculate the area of the whole square, then the area of the circle.

5 0
2 years ago
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Calcule as expressões:
Nata [24]

Step-by-step explanation:

a, 1/4+2/5=13/20

b,-1/8+1=7/8

c, 4/25×-1/8=-1/50

d, 2×1/9-1/2=2/9-1/2=-5/18

e, 1+2/5-1/4=7/5-1/4=23/20

8 0
2 years ago
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