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3 years ago

Need help quickly please!

Mathematics

1 answer:

den301095 [7]3 years ago

4 0

Answer:

Step-by-step explanation:

Considering that it is a triangle ABC which means AB = AC + BC AB = 48 + 38 = 86

I think that's it I hope it will help you

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Suppose a triangle has two sides of length 2 and 3 and that angle between these two sides is 60 degrees. What is the length of t

Rudiy27

Answer:

The measure of the third side is $\sqrt{7}\ units$

Step-by-step explanation:

we know that

Applying the law of cosines

$c^2=a^2+b^2-2(a)(b)cos(C)$

where

C is the angle between side a and side b

we have

$a=2\ units\\b=3\ units\\C=60^o$

substitute

$c^2=2^2+3^2-2(2)(3)cos(60^o)$

$c^2=13-(12)(\frac{1}{2})$

$c^2=13-6$

$c^2=7$

$c=\sqrt{7}\ units$

5 0

3 years ago

What is the measure of the missing angle

Sauron [17]

Answer:

dont you just subtract 90-61 to get 29 since a triangle is 90 degrees

3 0

3 years ago

Pleas help Calculate the shaded area give your answer to 3 significant figures

IgorC [24]

Answer:

116 cm²

Step-by-step explanation:

Shaded Area = area of the larger circle - area of the smaller circle

Area of the larger circle = πr²

Where,

r = 6.5 cm

Area = π*6.5² = 42.25π cm²

Area of smaller circle = πr²

Where,

r = 2.3 cm

Area = π*2.3² = 5.29π cm²

✔️Shaded area = 42.25π - 5.29π = 36.96π = 116.113264

Area = 116 cm² (3 S.F)

5 0

3 years ago

Which of the following statements is true?

Luden [163]

Answer:

i think its b

Step-by-step explanation:

8 0

3 years ago

Read 2 more answers

the mean weight of adult males is 165 pounds with a standard deviation of 30 pounds. if a sample of 35 adult males is selected,

tigry1 [53]

Answer:

0.5244 is the answer.

Step-by-step explanation:

Given that the mean weight of males adult is 165 pounds.

Std deviation is 30 pounds

Sample size n = 35

Hence sample std deviation = 30/sq rt 35 = 5.071

Then X bar the mean of the sample follows a normal distribution

X bar : N(165, 5.071) by central limit theorem

Required probability =P(X<155)

When x =155, Z = $\frac{155-165}{5.071} =-1.972$

Hence P(X<155) = P(Z<-1.972) = 0.5-0.4756

= 0.5244

6 0

3 years ago