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klasskru [66]
3 years ago
13

How do I solve 2t<-4 or 7t>49

Mathematics
1 answer:
laiz [17]3 years ago
5 0
2t<-4
t< (-4/2)
t<-2

just treat the greater and less than signs as equal signs
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What is the surface area of this design?<br> PLEASE HELP ASAP!!
kumpel [21]

SO you would have to first have the surface area of the cube which is 25 for each side so 25 x 6 = 150

Then you find the surface area for the other sides and It is 4 x 5 divided by two for each triangle on the side,  so that would be 20 and you multiply then 6.4 x 5 to equal 32 for the rectangle. The last part is the bottom and it is 4 x 5 again which is 20 so then you add them all up but im not sure.

6 0
3 years ago
the sum of the first ten terms of a linear sequence is -60 and the sum of the first fifteen terms is -165. Find the 18th term of
const2013 [10]

Answer:

<h2>          a₁₈ = - 31</h2>

Step-by-step explanation:

S_{10}=\dfrac{2a_1+d(10-1)}{2}\cdot 10\\\\\dfrac{2a_1+9d}{2}\cdot 10=-60\\\\\dfrac{2a_1+9d}{2}=-6\\\\2a_1+9d=-12\\\\2a_1=-12-9d\\\\\\S_{15}=\dfrac{2a_1+d(15-1)}{2}\cdot 15\\\\\dfrac{2a_1+14d}{2}\cdot 15=-165\\\\\dfrac{2a_1+14d}{2}=-11\\\\2a_1+14d=-22\\\\-12-9d+14d=-22\\\\ 5d=-10 \\\\ d=-2\\\\\\2a_1=-12-9(-2)=-12+18=6\\\\a_1=3\\\\\\ a_{18}=a_1+17d=3+17(-2)=3-34=-31

8 0
3 years ago
I need help doing this problem
SIZIF [17.4K]
40 degrees I believe
4 0
3 years ago
I think it’s either a or b?? Does anyone know?? Pls help me!!
Murljashka [212]
Solution we have
The triangular prism in which
Let Sp = 16., S2 = 10,83 = 10 Now, L=
12 cm
then, we know that,
lateral surface area of
Triangular prism = L (S, +S, +S2)
= (16+10+10)/12)
Hence, the correct. option A is correct
3 0
2 years ago
Read 2 more answers
Find the missing probability in the table below.
KATRIN_1 [288]
X          1           2        3         4
p(x)    0.40    0.20   0.15     ?

If the items are only 4. The total of the probability must be 1 or 100%

1 - 0.40 - 0.20 - 0.15 = 0.25

The probability of 4 is 0.25.
5 0
4 years ago
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