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weeeeeb [17]
3 years ago
8

Find the value of x on both problems please help this is urgent and please show work

Mathematics
1 answer:
puteri [66]3 years ago
5 0

Answer:

Step-by-step explanation:

1) the triangle is right, so we can use the Pythagorean theorem

x^2 + 24^2 = (16+x)^2

x^2 + 576 = x^2 + 256 + 32x

32x = 320

x = 10

2) the two segment are congruent, so

7x - 13 = 9x - 23

2x = 10

x = 5

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A certain ferry moves up and down a river between Town A and
Blizzard [7]

Answer: 60 miles

Step-by-step explanation:

Given

It takes ferry 2 hours to travel to town A and only 1.5\ hr to travel back to town B.

Speed of current is u=5\ mph

Suppose the speed of the ferry is v mph

Distance traveled in both the cases is same, but it took more time traveling to city A that is, ferry is moving upstream and downstream for returning time.

\Rightarrow 2(v-5)=1.5(v+5)\\\Rightarrow 2v-10=1.5v+7.5\\\Rightarrow 0.5v=17.5\\\Rightarrow v=35\ mph

Distance between the towns is 2\times (35-5)=60\ \text{miles}

5 0
3 years ago
Read 2 more answers
Suppose you obtain a chi-square statistic of 67.81. Are your results statistically significant if the critical value obtained fr
Svetach [21]

Answer:

Result is statistically significant.

Step-by-step explanation:

Given that :

Chisquare statistic, χ² = 67.81

Critical value for the distribution, χ²critical = 3.84

α = 0.05

The Decison region :

If χ² statistic > Critical value ; Reject H0 ; this. Eans that result is statistically significant.

Therefore, since, 67.81 > 3.84 ; This means that the result is statistically significant at 0.05

8 0
3 years ago
Find the area of this shape please quick to.
erica [24]
First do (30×20)/2 + 20×25 + 35×42 + (42×25)/2
it should give you a total of 2795 cm
7 0
3 years ago
Which choice is the equation of a line that is parallel to the line 2x + 3y = 9?
lawyer [7]

Hopefully this helps you !

7 0
3 years ago
Plz no links just give the answer and how you got it plsss. A circular hot spring has a diameter of 106 meters. Over time, the d
Nookie1986 [14]

Answer:

The area decreases by 1155.52 square meters

Step-by-step explanation:

a = pi * r ^ 2

d = 2 * r

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r = 88/2

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a2 = 3.14 * 44 ^ 2

a2 = 6079.04 square meters.

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a1 - a2 = 7234.56 - 6079.04

= 1155.52 square meters

7 0
3 years ago
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