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goldfiish [28.3K]
3 years ago
15

Triple a number, x, increased by 1 is between -20 and 10. What are the solutions for x?

Mathematics
1 answer:
Bumek [7]3 years ago
3 0
Hello,
-20 \leq 3x+1 \leq 10\\
\Rightarrow\ -21 \leq 3x \leq 9\\
\Rightarrow\ -7 \leq x \leq 3\\

Sol=[-7\ 3]\ if\ x\ is\ a\ real.


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-3x - 6 greater than 15
Sergeeva-Olga [200]
The answer should be X<7! You start by add the 6, then dividing my -3! When you divide by a negative you change the sign!
4 0
3 years ago
Will give brainlly
sdas [7]

Answer:

A

Step-by-step explanation:

With this question, its actually way easier than you think. If you want to find corresponding angles, you have to find a way to make the shapes overlap to be exactly the same. If they cannot be exactly the same, there will not be corresponding angles. For this, if you rotate quadrilateral 90 degrees counter-clockwise, you will see that the shapes look the same. Then you can just match up the angles that have the same degree measure (or just look the same for simplicity) and you have your answer. The answer is actually in the question too. ABCD=JKLM, but each letter is actually in the right place. A=J B=K C=L D=M.

Hope this helped! ^-^

7 0
3 years ago
Read 2 more answers
AABC is similar to AAXY by a ratio of 4:3. If BC = 24, what is the length of XY?
Alenkasestr [34]

Answer:

OXY=18

Step-by-step explanation:

The ratio of AABC to AAXY is 4:3 so the lengths will be in that ratio too. The ratio of BC:XY is 4:3. BC is 24 so 24:XY is 4:3. You need to divide 24 by 6 to get 4 so multiply 3 by 6 to get the answer 18.

7 0
3 years ago
A firecracker shoots up from a hill 140 feet high, with an initial speed of 100 feet per second. Using the formula H(t) = −16t2
V125BC [204]
<span>H(t) = −16t^2 + vt + s

</span>
<span>H(t) = −16t^2 + 100t + 140

H(t) = 0 = </span><span>−16t^2 + 100t + 140

16t^2 - 100t -140 = 0

t = [100 +/- √ (100^2 -4(16)(-140) ) ] /(2(16))

t = 7.43 and t = - 1.18.

El que tiene sentido para la pregunta es t = 7.43 s.

Option B) 7 s (approximately)


</span>
6 0
3 years ago
Read 2 more answers
<img src="https://tex.z-dn.net/?f=8%20%5Cfrac%7B3%7D%7B5%7D%20" id="TexFormula1" title="8 \frac{3}{5} " alt="8 \frac{3}{5} " ali
IRINA_888 [86]

Answer:

Step-by-step explanation:

8 3/5 is already in simplest form.  You could write this mixed number as an improper fraction:

43/5

or as a mixed decimal number:

8.6

5 0
3 years ago
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