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zvonat [6]
2 years ago
9

I'll give brainliest to first answer!

Mathematics
2 answers:
stellarik [79]2 years ago
7 0

Answer: the area is 120

Step-by-step explanation:

Nuetrik [128]2 years ago
5 0

Answer:

A

=

120

Step-by-step explanation:

A

=

h

b

b

2

=

16

·

15

2

=

120

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Simlplify the expression. 2.3h(6-k)
makvit [3.9K]

Answer:

13.8h-2.3hk

Step-by-step explanation:

3 0
2 years ago
1. The mean annual US household income is $72,641. Suppose that the standard deviation is $30,000. a. Find the probability that
valina [46]

Answer:

The answer is below

Step-by-step explanation:

The z score is used to determine by how many standard deviations the raw score is above or below the mean. The z score is given as:

z=\frac{x-\mu}{\sigma}\\\\where\ x=raw\ score,\mu=mean\ and\ \sigma=standard\ deviation \\\\For\ a\ sample\ size\ n: \\\\z=\frac{x-\mu}{\sigma/\sqrt{n} }

Given that μ = $72,641 and σ = $30,000.

a) x > $100000

z=\frac{100000-72641}{30000}=0.91

P(x > 100000) = P(z > 0.91) = 1 - 0.8186 = 0.1814

b) n = 5

x > $100000

z=\frac{100000-72641}{30000/\sqrt{5} }=2.04

P(x > 100000) = P(z > 2.04) = 1 - 0.9793 = 0.0207

c) n = 10

x > $100000

z=\frac{100000-72641}{30000/\sqrt{10} }=2.88

P(x > 100000) = P(z > 2.88) = 1 - 0.9980 = 0.002

4 0
2 years ago
CORRECT ANSWERS ONLY
guapka [62]

Answer: Mika has not described a proportional relationship. Although it is a linear function, it does not pass through the origin.

Step-by-step explanation: if you place those points on a graph, they do create a linear function; the line just doesn't pass through the origin.

5 0
2 years ago
Read 2 more answers
John should drive to his workplace and back to home. On the way to the workplace it was raining, so he drove at speed of 42mph.
nataly862011 [7]

Answer:

48 mph

Step-by-step explanation: Add 42mph and 54 mph and you get 96.  To find the average of the two --- divide 96 by 2 and you get 48mph as the average speed for the entire trip.

3 0
2 years ago
Help its lateee and i suck at this
s2008m [1.1K]

Answer:

1.  Identify the problem: Packaging boxes use too much material and create waste

2. What are the equations for the volume and surface area of a cube and rectangular prism?

Volume of a cube: Vcube = L x L x L = L3

Surface area of a cube: SAcube = 6 x (L x L) = 6L2

Volume of a rectangular prism: VRP = L x W x H = LWH

Surface area of a rectangular prism: SARP = 2 x (L x W) + 2 x (L x H) + 2 x (W x H) = 2(LW + LH + WH)

3. What is the difference in surface area of the packages below? (Note that they have the same volume.)

SAcube = 6L2

= 6 (20 cm)2

= 2,400 cm2

SARP = 2(LW + LH + WH) = 2 (20cm x 10cm + 20cm x 40cm + 10cm x 40cm) = 2,800 cm2

SARP – SAcube = 2,800 cm2

– 2,400cm2

= 400 cm

Step-by-step explanation:

everything in bold is the answer

Can I please get the Brainlist

3 0
2 years ago
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