3 years ago

HELP ASAP ILL GIVE 18 POINTS

Mathematics

2 answers:

Kitty [74]3 years ago

5 0

Answer:

729

Step-by-step explanation:

san4es73 [151]3 years ago

3 0

The awnser is 729 Bc 81 times 9 equals 729

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Factor: 100x^2- 81

Alex17521 [72]

Answer:

Choice 'D' (10x + 9) (10x-9) is the correct answer

Step-by-step explanation:

100x^2 - 81

This is a difference of squares...

therefore = (10x + 9) (10x - 9)

7 0

2 years ago

Find f(4). f(x) = x2 + 2x - 3 A) 5 B) 11 13 D) 21 Elimina

grandymaker [24]

Answer:D

Step-by-step explanation:

you plug 4 in for x

f(4)=4^2+2(4)-3

=16+8-3

=24-3

=21

3 0

2 years ago

1) (-3,-5) (-5,5) slope =

Alenkinab [10]

Answer:

Mine was multiple choice and I got c

Step-by-step explanation:

6 0

2 years ago

In a college math class of 50 students, 23 are boys and 27 are girls. On the final exam, 15 boys and 14 girls made an A. What is

GenaCL600 [577]

boy or an A student is

29 made an A + 8 boys who did not make an A

37 who made an A and/or who is a boy

37/50

3 0

2 years ago

Find the surface area of the square pyramid if the slant height is 13mm and the base length is 11mm

FromTheMoon [43]

Answer:

The surface area of the square pyramid if the slant height is 13mm and the base length is 11mm is 407 sq.mm.

Step-by-step explanation:

Slant height of square pyramid = l = 13 mm

Base length of square pyramid = b = 11 mm

Formula of surface area of square pyramid = $b^2+2bl$

Substitute the values in the formula :

Surface area of square pyramid = $11^2+2(11)(13)$

Surface area of square pyramid =407 sq.mm.

Hence the surface area of the square pyramid if the slant height is 13mm and the base length is 11mm is 407 sq.mm.

3 0

2 years ago