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3 years ago

Please help me with this

Mathematics

1 answer:

ElenaW [278]3 years ago

5 0

Answer:

SAS is the answer ...........

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What’s the difference please help

labwork [276]

Answer:

C: $-7ab \sqrt[3]{3ab^{2} }$

Step-by-step explanation:

Simplify or expand:

$2ab\sqrt[3]{192ab^{2} } - 5\sqrt[3]{81a^{4} b^{5} }$

Transform the expression:

$2ab\sqrt[3]{4^{3}*3ab^{2} }$ - $5\sqrt[3]{3^{3}*3a*ab^{3} b^{2} }$

Re-write

Multiply

Combine like terms.

8 0

1 year ago

Describe the error in factoring the polynomial.

Veseljchak [2.6K]

Answer:

B:Multiplication of the outer terms of the two factors does not result in -7x

Step-by-step explanation:

8 0

3 years ago

Khan academy question

andriy [413]

Answer:

(2,5)

Step-by-step explanation:

There you go.........

4 0

2 years ago

Read 2 more answers

A crew will arrive in one week and begin filming a city for a movie. The mayor is desperate to clean the city streets before fil

Reptile [31]

Step-by-step explanation:

1 week = 7 days of 24 hours each = 7×24 = 168 hours.

the first team can do 1/700 of the total work per hour.

the second team can do 1/600 if the total work per hour.

if they work together, then 1/700 + 1/600 of the total work can be done per hour.

to add these 2 fractions we need to bring them to the same denominator. and that would be 4200 (LCM of 700 and 600).

1/700 + 1/600 = 6/4200 + 7/4200 = 13/4200

so, together, they can do 13/4200 if the total job in 1 hour.

how many hours will they need together to finish the job ?

well, how often does 13 fit into 4200 (as 4200/4200 is the complete job) ?

4200 / 13 = 323.0769231... hours

so, it will still take a little bit over 323 hours to clean all the streets.

but there are only 168 hours until the film crew starts.

so, no, there is not enough time.

4 0

1 year ago

The coordinates of three vertices of square ABCD are A(−212,112),B(−212,−3), and C(2,112).

Lady_Fox [76]

Answer:

Step-by-step explanation:

Three of the coordinates of the square ABCD are A(-212,112) B(-212,-3) C(2,112). The image below shows the square is not ABCD but ABDC. In fact, this is not a square, as we'll prove later.

Note the x-coordinate of A and B are the same. It means this side is parallel to the y-axis. Also, the y-coordinate of A and C are the same, meaning this side is parallel to the x-axis. The missing point D should have the same x-coordinate as C and y-coordinate as B, i.e. D=(2,-3).

This shape has sides that are parallel to both axes.

To calculate the perimeter we find the length of two sides.

The distance from A to B is the difference between their y-axis:

w=112-(-3)=115

The distance from A to C is the difference between their x-axis:

l=2-(-212)=215

It's evident this is not a square but a rectangle. The perimeter is

P=2w+2l=330+430

P=760

7 0

2 years ago