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3 years ago

Find the perimeter of the rectangle in terms of a I’m marking branliest

Mathematics

1 answer:

Bumek [7]3 years ago

8 0

Answer:

2a + 3 = 5a

8a - 12 = -4a

5a + 5a + -4a + -4a

10a + -4a + -4a

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Henry are 3/4 of a sandwich. Keith are 4/8 of the same sandwich. How much more of the sandwich did Keith eat than henry

mezya [45]

1/8 or 1/4, because if you think of fraction strips 4/8 equals 1/2, and 3/4 is more than 1/2.

4 0

4 years ago

Read 2 more answers

A set of data includes 107 data points ranging from 0 – 300. If the data is split into classes with a range of 50 (1 – 50, 51 –

SVETLANKA909090 [29]

Answer:

Step-by-step explanation:

The mean is the average summing all values together and dividing by the number of values been investigated.

Hence since no values exist between 201-350 that means the mean can not be there.

3 0

3 years ago

Chen has an MP3 player called the Jumble. The Jumble randomly selects a song for the user to listen to. Chen's Jumble has 4 clas

Maksim231197 [3]

Answer:

Step-by-step explanation:

I don't exactly know what the problem is asking.

4+3+2=9

Sooo, there are 9 different songs.

You then have to divide 360 by 9 to figure out how many times each song is going to play.

360/9= 40

Each song is going to play 40 times.

I hope that's the answer to the question. If it isn't, this will probably get you closer to the answer.

Good luck! :D

6 0

4 years ago

Find an equation of the plane tangent to the following surface at the given point. 8 xy plus 5 yz plus xzminus56equals0; (2 com

Nimfa-mama [501]

The Question is :

Find an equation of the plane tangent to the following surface at the given point.

8xy + 5yz + xz - 56 = 0; (2, 2, 2 )

The equation of the tangent plane at (2, 2, 2 ) is 0.

Answer:

The equation of the plane tangent to the surface

8xy + 5yz + xz - 56 = 0

at the point (2, 2, 2 )

is 9x + 13y + 6z - 56 = 0

Step-by-step explanation:

Given the equation

8xy + 5yz + xz - 56 = 0

and the point

(2, 2, 2 ).

To find the equation of the plane tangent to the surface, we first differentiate the given function with respect to x, y and z respectively.

F_x = 8y + z

F_y = 8x + 5z

F_z = 5y + x

At the point (2, 2, 2)

F_x = 18

F_y = 26

F_z = 12

The equation of the plane is given as

(F_x)(x - 2) + (F_y)(y - 2) + (F_z)(z - 2) = 0

18(x - 2) + 26(y - 2) + 12(z - 2) = 0

18x + 26y + 12z - 36 - 52 - 24 = 0

18x + 26y + 12z - 112 = 0

Divide through with 2

9x + 13y + 6z - 56 = 0

This is the equation we are looking for.

3 0

4 years ago

A medical device company knows that 11% of patients experience injection-site reactions with the current needle. If 4 people rec

Orlov [11]

Answer: 0.6274

Step-by-step explanation:

Given: The proportion of patients experience injection-site reactions with the current needle : p=0.11

Sample size : n= 4

Let x be a binomial random variable that represents the people get an injection-site reaction.

Binomial probability formula: $P(X=x)= ^nC_x p^x(1-p)^{n-x}$

The required probability : P(x=0)

$=\ ^4C_0(0.11)^0(1-0.11)^4\\\\=(1)(1)(0.89)^4\\\\=0.62742241\\\approx0.6274$

Hence, the probability that none of the 4 people get an injection-site reaction = 0.6274

6 0

4 years ago