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2 years ago

Someone please help me

Mathematics

1 answer:

ad-work [718]2 years ago

7 0

Answer:

It's A.

Step-by-step explanation:

Because whatever goes into the absolute value symbol, it'll turn out positive. And real numbers could only be positive.

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Helpppppppppppp plsssssssssssssssssssssssssss!

Goshia [24]

Answer:

<FGH and <JKL are supplementary

<AED and <BEC are complementary

Step-by-step explanation:

For supplementary angles, the sum of the pair of angles must be 180degrees

Given;

<FGH = 109degrees

<JKL = 71degrees

Taking the sum

<FGH + <JKL

= 109 + 71

= 180

Since the sum of the angles is 180, hence <FGH and <JKL are supplementary

Similarly;

Given

<AED = 45degrees

<BEC = 45degrees

Taking the sum

<AED + <BEC

= 45 + 45

=90degrees

Since the sum of complementary angles is 90degrees, hence <AED and <BEC are complementary

8 0

3 years ago

How do I do this? Please help this is due tomorrow!

solmaris [256]

Answer:B 29.16
10% off of 30 is 3.
Subtract 3
27+8%=29.16
29.16 is the answer

hope this helped!

7 0

4 years ago

A cable 33m long runs from the top of a utility pole to a point on the ground 22m from the base of the pole. How tall is the uti

Natasha_Volkova [10]

Answer: 24.6 m

Step-by-step explanation:

The shape described is that of a right-angled triangle.

This means that the height of the pole can be calculated using the Pythagorean rule.

c² = a² + b²

c = hypothenuse which is the length of the cable to the ground = 33m

a = base = distance from base of pole to cable point on ground = 22m

b = height of pole

33² = 22² + b²

1,089 = 484 + b²

b² = 1,089 - 484

b² = 605

b = √605

b = 24.6 m

6 0

3 years ago

Find x and y when bxby = b8 and b4xb-2y=b2

Anika [276]

Answer:

x = 1/y

Step-by-step explanation:

6 0

3 years ago

A shipment of 50 precision parts including 4 that are defective is sent to an assembly plant. The quality control division selec

natali 33 [55]

Answer:

0.3968 = 39.68% probability this shipment passes inspection.

Step-by-step explanation:

The parts are chosen without replacement, which means that the hypergeometric distribution is used to solve this question.

Hypergeometric distribution:

The probability of x successes is given by the following formula:

$P(X = x) = h(x,N,n,k) = \frac{C_{k,x}*C_{N-k,n-x}}{C_{N,n}}$

In which:

x is the number of successes.

N is the size of the population.

n is the size of the sample.

k is the total number of desired outcomes.

Combinations formula:

$C_{n,x}$ is the number of different combinations of x objects from a set of n elements, given by the following formula.

$C_{n,x} = \frac{n!}{x!(n-x)!}$

In this question:

50 parts means that $N = 50$

4 defective means that $k = 4$

10 are chosen, which means that $n = 10$

What is the probability this shipment passes inspection?

Probability that none is defective, so:

$P(X = x) = h(x,N,n,k) = \frac{C_{k,x}*C_{N-k,n-x}}{C_{N,n}}$

$P(X = 0) = h(0,50,10,4) = \frac{C_{4,0}*C_{46,10}}{C_{50,10}} = 0.3968$

0.3968 = 39.68% probability this shipment passes inspection.

6 0

3 years ago