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madam [21]
3 years ago
5

Need help with number 6 plssssssssssassssa

Mathematics
1 answer:
Advocard [28]3 years ago
8 0
C I think sorry I will try I will get other answers later
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What is seven over twenty one take away one over twenty one in its simplest form
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It would be 6/21 but simplified it would be 2/7
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Help Please Math!!!<br> Find The Surface Area Of The Prism
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Surface Area=208 cm²

Step-by-step explanation:

Surface Area= 2×l×w+2×l×h+2×h×w

SA= 2×11×4+2×4×4+2×11×4=208

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One school purchased 16 gallons of blue paint to decorate several of its classrooms. If
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3 years ago
Circle Q has a circumference of approximately 50 centimeters.What is the approximate length of the diameter, d? Use 3.14 for . R
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Step-by-step explanation:

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4 0
3 years ago
Please help with these math questions
Tanya [424]
1.
a^2+b^2=c^2
easy
a=a
b=13
c=21
a^2+13^2=21^2
a^2+169=441
minus 169 both sides
a^2=272
sqrt both sides
a=16.4924
D is answer



2. same thing
a=18
b=26
18^2+26^2=c^2
324+676=c^2
1000=c^2
sqrt both sides
31.6228=c
C is answer



3.
one way is to plug them in
remember that hypotonuse is longest side
A. 7^2+24^2=25^2, is that true?, yes it is treu
answer is A



4.
legs are 6 and 4
a=6
b=4
c=x
4^2+6^2=x^2
16+36=x^2
52=x^2
sqrt both sides
7.2111=x
7.2=x



5.c=20
a=x
b=14

x^2+14^2=20^2
x^2+196=400
minus 196 both sides
x^2=204
sqrt both sides
x=14.2829
x=14.3




1. D
2. C
3. A
4. 7.2
5. 14.3

4 0
3 years ago
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