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hoa [83]
3 years ago
8

Please help fast!! what is the surface area??

Mathematics
1 answer:
nadezda [96]3 years ago
6 0
The two trapezoidal faces together have an area of
.. (5 in)*(5 in +9 in) = 70 in^2

The remaining surface can be unfolded to an area that is
.. (5 in)*(5 in +9 in +6.4 in +5 in) = 127 in^2

Together, these add to
.. 70 in^2 +127 in^2 = 197 in^2 . . . . . . . the 4th selection
You might be interested in
In a geometric sequence, a2= -144 and a5=486. Write the explicit formula for this sequence
pickupchik [31]

Answer:

a_{n} = 96(-1.5)^{n-1}

Step-by-step explanation:

The n th term of a geometric sequence is

a_{n} = a(r)^{n-1}

where a is the first term and r the common ratio.

Both values have to be found.

Using

a₂ = - 144, then

ar = - 144 → (1)

a₅ = 486, then

ar^{4} = 486 → (2)

Divide (2) by (1)

\frac{ar^4}{ar} = \frac{486}{-144}

r³ = - 3.375 ( take the cube root of both sides )

r = - 1.5

Substitute r = - 1.5 into (1)

- 1.5a = - 144 ( divide both sides by - 1.5 )

a = 96

Hence explicit formula is

a_{n} = 96(-1.5)^{n-1}

5 0
4 years ago
The selling price for a classic car is $12,000, which is $500 less than two times its original price. What was the original pric
Rashid [163]

Answer:$6250

Step-by-step explanation:

selling price(sp)=12000

Original price(op)=?

sp+500=2 x op

12000+500=2 x op

12500=2 x op

Divide both sides by 2

12500/2=(2 x op)/2

6250=op

Therefore original price is $6250

6 0
3 years ago
REPORT THE BOTS THAT SAY ¨I wanna s-x talk¨ PLEASE GET THEM OFF OF THIS SITE THAT CHILDREN USE!!
nordsb [41]

Answer:

LETS TAKE THEM DOWN!

Step-by-step explanation:

3 0
3 years ago
Read 2 more answers
Simplify the expression
MaRussiya [10]
11) 7 + -10+(4(5+-3)) = 7+-10+8=5

12) (12 +-10)+3x+-1(2x+4x), 12+-10x+3x+-2x+-4x = 12+-13x
5 0
3 years ago
Read 2 more answers
Does the following set of measurements create a triangle? 17,35, and 18<br><br> True or False
Natasha_Volkova [10]
False, because a^2+b^2=c^2 and no matter what numbers substitute for which ever variable the answer isn’t going to be true
4 0
4 years ago
Read 2 more answers
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