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2 years ago

HELPPP MEE PLEASE!! ×∆×∆×∆×∆×

Mathematics

1 answer:

Serggg [28]2 years ago

8 0

Answer:

33 yd

Step-by-step explanation:

the length of another leg =

√(55²-44²) = √3025-1936

=√1089 = 33

You might be interested in

The life in hours of a 75-watt light bulb is known to be normally distributed with standard deviation σ = 25 hours. A random sam

irina [24]

Answer: a) (1008.34,1019.658) b) (1009.24,1018.76)

Step-by-step explanation:

Since we have given that

n = 75

mean = 1014 hours

Standard deviation = 25 hours

At 95% two sided , z = 1.96

So, confidence interval would be

$\bar{x}\pm z\dfrac{\sigma}{\sqrt{n}}\\\\=1014\pm 1.96\dfrac{25}{\sqrt{75}}\\\\=1014\pm 5.658\\\\=(1014-5.658,1014+5.658)\\\\=(1008.34,1019.658)$

(b) Construct a 95% lower confidence bound on the mean life.

z = 1.65

So, confidence interval would be

$\bar{x}\pm z\times \dfrac{\sigma}{\sqrt{n}}\\\\=1014\pm 1.65\times \dfrac{25}{\sqrt{75}}\\\\=1014\pm 4.76\\\\=(1014-4.76,1014+4.76)\\\\=(1009.24,1018.76)$

Hence, a) (1008.34,1019.658) b) (1009.24,1018.76)

4 0

3 years ago

John swims 2.5 miles and sees a total of 12 fishes if he swims 8 miles how many fish will he see

Zolol [24]

Answer:

Step-by-step explanation:

2.5 miles = 12 fishes

Therefore,

8 miles = 12*8/2.5=96/2.5= 960/25=38.4 fishes

5 0

1 year ago

5. Use the vertical method to multiply two trinomials.

Gekata [30.6K]

Answer:

20x^4 - 13x^3 + 8x^2- x + 6

Step-by-step explanation:

box method :)

5 0

2 years ago

7m 10 m 7 m 9 m 34 m What the is the area

notka56 [123]

Answer:

10m

hope this helped you alot

5 0

3 years ago

WORTH 20 POINTS, PLEASE ANSWER CORRECTLY! (THE ANSWER IS NOT 26.005)

alekssr [168]

Answer:

23.590 feet

Step-by-step explanation:

The mnemonic SOH CAH TOA reminds you of the relationship between trig functions and sides of a right triangle:

Tan = Opposite/Adjacent

Here, that means ...

tan(65°) = height/(11 ft)

Multiplying by 11 ft, we get ...

height = (11 ft)tan(65°) ≈ 23.5896 ft

height ≈ 23.590 ft

4 0

3 years ago