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Rasek [7]
2 years ago
13

2x + 3 + x2; for x = 4

Mathematics
2 answers:
tester [92]2 years ago
7 0

Answer:

27

Step-by-step explanation:

2(4)+3+4^2

8+3+16

=27

didn't notice the 2 power

Irina-Kira [14]2 years ago
6 0

Answer:

Pretty sure it's 27

Step-by-step explanation:

(2 4= 8) + 3 (4 4= 16)=27

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Nan’s art sculpture is a pyramid. She will cover all the faces with gems, except the base of the pyramid.
marysya [2.9K]

Answer:

it is 54

Step-by-step explanation:

i took the test and checked the answer

6 0
3 years ago
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Trey is renting a paddleboard he paid $6 per hour plus a $10 rental fee he had $30 to spend how many hours can you rent a paddle
Trava [24]
3 hours

6x+10 is less than or equal to 30
8 0
3 years ago
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A banner is in the shape of a right triangle. the area is 63 inches. The height of the banner is 4 in less than twice the width
Blizzard [7]
Area=1/2 times base times height
note:bh=base times height

a=1/2bh
b=width

h=-4+2w
h=2w-4
subsitute
a=1/2w(2w-4)
a=1/2(2s^2-4w)
a=w^2-2w
a=63
63=w^2-2w
subtract 63 from both sdies
0=w^2-2w-63
factor
find what 2 numbers multiply to get -63 and add to get -2
the numbers are -9 and 7
so
0=(w-9)(w+7)
if xy=0 then x and/or y=0

so
w-9=0
w+7=0

solve each
w-9=0
add 9 to both sdies
w=9

w+7=0
subtract 7 from both sides
w=-7
width cannot be negative so this can be discarded

width=9

subsitute
l=2w-4
l=2(9)-4
l=18-4
l=14


legnth=14 in
width/base=9 in
5 0
3 years ago
Help and explain plzzzzzz
nignag [31]
Its 2.59%. i mean i figured it out and i got 2.59%
8 0
3 years ago
Please please please help me
Leviafan [203]
The correct answer is 17 what i did was plug in 17 where ever you see x so x2 would be 17x2 an then plus the 5 gives u 39 3x 17x3=51 51+10=61 now add the totals 61 plus 39 gives u 100
8 0
3 years ago
Read 2 more answers
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