3 years ago

Bob asked each of 40 friends how many minutes they took to get to work.

Mathematics

1 answer:

Effectus [21]3 years ago

5 0

This is quite a unique question but I think the time taken is 36

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A countertop is 16 ft. long and 3 ft. wide. what us the area of the counter top in square meters

Elis [28]

The anwser of your question is 36 sq.ft.

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3 years ago

Read 2 more answers

Please! im having trouble

Triss [41]

Answer:

C. ∠K ≅ ∠R

Step-by-step explanation:

ΔJKL ~ ΔQRS

∠J ≅ ∠Q

∠K ≅ ∠R

∠L ≅ ∠S

8 0

3 years ago

Solve for x and y: ax/b -by/a=a+b; ax-by= 2ab

Svetlanka [38]

Y=-a
x=b
a^2x-b^2y/ab=a+b
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3 years ago

If the volume of the expanding cube is increasing at the rate 24 cm3 / min , how fast is its surface area increasing when the su

Georgia [21]

Answer:

16 cm^2/min

Step-by-step explanation:

dV/dt=24

V=a^3, differentiate with respect to t

dV/dt=3a^2*da/dt, a^2*da/dt=8

S=6a^2, 216=6a^2. a=6. da/dt=(8/36)

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7 0

3 years ago

Write a matrix equation for the given systems of equations.

REY [17]

Answer:

$\left[\begin{array}{ccc}2&-6&2\\0&3&-2\\0&2&2\end{array}\right] \left[\begin{array}{ccc}x\\y\\z\end{array}\right]= \left[\begin{array}{ccc}1\\-5\\-3\end{array}\right]$

Step-by-step explanation:

Given system of equations are

2x-6y-2z = 1

3y - 2z = -5

2y + 2z = -3

given

2 x - 6 y - 2 z = 1

0 x + 3 y - 2z = -5

0 x +2y + 2 z = - 3

The Matrix form of the given system of equations

A X = B

$\left[\begin{array}{ccc}2&-6&2\\0&3&-2\\0&2&2\end{array}\right] \left[\begin{array}{ccc}x\\y\\z\end{array}\right]= \left[\begin{array}{ccc}1\\-5\\-3\end{array}\right]$

4 0

4 years ago