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Nastasia [14]
3 years ago
13

A square pyramid has a base with a side length of 4 feet and lateral faces with heights of 3 feet. What is the lateral are of th

e pyramid?
Mathematics
1 answer:
brilliants [131]3 years ago
3 0

Answer:144

Step-by-step explanation:

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What is the equation of the line perpendicular to y= 2/3x+1 that passes through the point (12, 6)?
charle [14.2K]

Answer:

y=(-3/2)x+24

Step-by-step explanation:

a perpendicular line should have the negative reciprocal of the line that it is perpendicular to.

negative reciprocal of 2/3 is -3/2

out line should look something like this

y=(-3/2)x+b

then we use the given point to find b

6=(-3/2)12+b

6=-18+b

b=24

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What do you need help with?
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State whether the triangles are similar. If so, write a similarity statement and the postulate or theorem you used. The diagram
olga55 [171]

Givn : OK = 3, OJ = 30, KN = 1, JM = 3

ON=OK+KN=3+1=4

OM=OJ+JM=30+10=40

In triangles OKJ & ONM,

OKOJ=330=110

ONOM=440=110

Angle O is common in both the triangles.

Two sides are in same proportion and the included angle is common (SAS) . Hence both the triangles are similar.

That means KJNM=110 or the two sides are parallel.

Hence ˆK=ˆN,ˆJ=ˆM corresponding angles.

3 0
3 years ago
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Given the point and its image, determine the scale factor.
BARSIC [14]

Answer:

it would be 2

Step-by-step explanation:

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3 years ago
Factorize the following expression ab-a-b+1
dolphi86 [110]

Group 'em together

a b − a + 1 − b

a b − a = a ( b − 1 )

Notice that there will be a 1 as without it it'll simply be  ab

1 − b = 1 ( 1 − b )

Notice that it doesn't match with the upper one... so we'll change the signs

1 ( 1 − b ) = − 1 ( b− 1 )

(try to multiply them now!!

Jot them down in one expression

a ( b − 1 ) − 1 ( b − 1 )

You get!!!!!!

( a − 1 ) ( b − 1 )

5 0
3 years ago
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