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lisov135 [29]
3 years ago
5

Which situation could be represented by the equation - 15 + 15 = 0?

Mathematics
1 answer:
Tema [17]3 years ago
7 0

Answer:

B

Step-by-step explanation:

Yuh

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The top two nets represent the triangular prisms that are attached to the bases of a rectangular prism. The composite figure is
hodyreva [135]

Answer:

282 square units

Step-by-step explanation:

I just answered this question

7 0
3 years ago
Read 2 more answers
Please help!! Write the sum using summation notation, assuming the suggested pattern continues. -9 - 4 + 1 + 6 + ... + 66
fiasKO [112]
r=-4-(-9)=-4+9=5 \\  \\ a_{1}=-9 \\  \\ a_{n}=66 \\  \\ a_{n}=a_{1}+(n-1)r \\  \\ -9+5(n-1)=66 \\  \\ -9+5n-5=66 \\  \\ 5n-14=66 \\  \\ 5n=80 \\  \\ n=16 \\  \\ S_{n}= \frac{a_{1}+a_{n}}{2} *n \\  \\ S_{n}= \frac{-9+66}{2}*16=57*8=456
4 0
2 years ago
Find the value of x that satisfy the inequality x + 2<7
earnstyle [38]
X+2 < 7
Subtract both sides by 2
x < 5
Any value where x was less than 5 would be correct.
8 0
3 years ago
The hypotenuse of a right triangle is 10cm long. The longer leg is 2cm longer than the shorter leg. Find the side lengths of the
Crazy boy [7]
We need Pythagoras theorem here
a^2+b^2 = c^2
a, b =  legs of a right-triangle
c = length of hypotenuse

Let S=shorter leg, in cm, then longer leg=S+2 cm
use Pythagoras theorem
S^2+(S+2)^2 = (10 cm)^2
expand (S+2)^2
S^2 +   S^2+4S+4  = 100 cm^2   [collect terms and isolate]
2S^2+4S =  100-4 = 96 cm^2
simplify and form standard form of quadratic
S^2+2S-48=0
Solve by factoring
(S+8)(S-6) = 0   means (S+8)=0, S=-8
or                                   (S-6)=0, S=6
Reject nengative root, so
Shorter leg = 6 cm
Longer leg = 6+2 cm = 8 cm
Hypotenuse (given) = 10 cm

5 0
2 years ago
A coupon subtracts $5.16 from the price (p) of a shirt. You pay $15.48 for the shirt after using the coupon. Write and solve an
lbvjy [14]

The equation would look like: p - 5.16 = 15.48

because the coupon subtracts 5.16 from p and the price you pay is 15.48

Solve the equation by adding 5.16 to both sides

p = 20.64

The original price of the shirt is $20.64

7 0
2 years ago
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