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4 years ago

How do I find out the two missing lengths

Mathematics

2 answers:

exis [7]4 years ago

8 0

Answer:

x = 10 and 2/3

y = 10

Step-by-step explanation:

Mrrafil [7]4 years ago

8 0

For this case, we have that by definition:

When two triangles are similar, the corresponding angles are congruent and the corresponding sides are proportional.

Then, we find the value of "y":

$\frac {21} {15} = \frac {14} {y}\\y = \frac {14 * 15} {21}\\y = 10$

We look for the value of "x":

$\frac {21} {16} = \frac {14} {x}\\x = \frac {14 * 16} {21}\\x = 10.67$

Answer:

$x = 10.67 = 11\\y = 10$

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Why does this not exist? I thought if you plugged in infinity, you would just get infinity. Do you not plug in infinity?

Anna11 [10]

Answer:

See below

Step-by-step explanation:

It does not exist because the

$(-1)^x$

doesn't tend to some value it just loop around

$-1, 1$

for ever

it exist when we have

$\lim_{x\rightarrow \infty}[(\frac{1}{x})]$

there when the value of x increasing the fractions tends to 0

so we can say that when x approaches infinity the value is 0.

Tell me if i haven't made myself clear

8 0

4 years ago

From stations A and B, the distance between which is 910 mi,

Firdavs [7]

Answer:

The slowest train goes at 86 mph and the fastest train goes at 96 mph.

Step-by-step explanation:

Distance and Speed

Assume x is the speed of the slowest train, therefore the speed of the fastest train is x+10.

The distance is calculated as:

d = vt

Where v is the speed and t is the time.

The distance traveled by each train in 5 hours is:

Slowest: 5x

Fastest: 5(x+10)

The sum of both distances is 910 miles:

5x + 5(x + 10) = 910

Operating:

5x + 5x + 50 = 910

10x = 910 - 50 = 860

x = 860/10

x = 86

The slowest train goes at 86 mph and the fastest train goes at 96 mph.

3 0

3 years ago

Use the quadratic formula to find the solutions for.. y = 2x^2 - 9x + 5.

Yakvenalex [24]

Answer: $x=\frac{9}{4}-\frac{\sqrt{41} }{4} \\x=\frac{9}{4}+\frac{\sqrt{41} }{4}$

Step-by-step explanation:

$2x^2-9x+5$

a=2

b=-9

c=5

$x=\frac{-b\frac{+}{}\sqrt{b^2-4ac} }{2a}$

$x=\frac{-(-9)\frac{+}{}\sqrt{(-9)^2-4(2)(5)} }{2(2)}$

$x=\frac{9\frac{+}{}\sqrt{81-40} }{4}$

$x=\frac{9\frac{+}{}\sqrt{41} }{4}$

$x=\frac{9}{4}-\frac{\sqrt{41} }{4} \\x=\frac{9}{4}+\frac{\sqrt{41} }{4}$

4 0

3 years ago

Find the area of the triangle

saw5 [17]

Answer:

73.64 ft²

Step-by-step explanation:

bad at explaining but hope this helped <3

4 0

3 years ago

Natalie walked 3/5 mile in 1/2 hour. How fast did she walk, in miles per hour?

lesya [120]

35 divided by 12 is 2

So D is the answer

8 0

4 years ago

Read 2 more answers