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Westkost [7]
3 years ago
7

What is the solution set?

Mathematics
1 answer:
rosijanka [135]3 years ago
8 0

Step-by-step explanation:

x \div 4 \leqslant 9 \div x

x ^{2}  \leqslant 36

x {}^{2}  - 36 \leqslant 0

x  {}^{2} { - 6}^{2}  \leqslant 0

(x + 6)(x - 6) \leqslant 0

x \leqslant  - 6 \:  \: or \:  \:  \: x \leqslant 6

- 6 \geqslant x \leqslant 6

From the explanation the correct answer is the last one from the question above

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Please help me out :)
arlik [135]

Answer:

\frac{\sqrt{17} }{7}

Step-by-step explanation:

Using the Pythagorean identity

sin²x + cos²x = 1, then

sinx = \sqrt{1-cos^2x}

Note that (\frac{4\sqrt{2} }{7})² = \frac{32}{49}

sinΘ = \sqrt{1-(32/49)}

        = \sqrt{\frac{17}{49} } = \frac{\sqrt{17} }{7}

5 0
3 years ago
Andrea has been asked to move several boxes of packing peanuts from the main office to the store room. She will have to carry ea
4vir4ik [10]

Answer:

yes she needs assistance

Step-by-step explanation

3 0
2 years ago
What is the solution set for 7x−4=3x+8 , given the replacement set {2,3,4,5} ?
mario62 [17]
7x-4=3x+8
4x-4=8
4x=12
x=3
4 0
3 years ago
Read 2 more answers
-3(4x+3)+4(6x+1)=43 what is the answer
kifflom [539]

Answer:

4

Step-by-step explanation:

-3(4x +3)+4(6x +1)=43

-12x-9 +24x +4 =43

12x - 5=43

12x=43 +5

12x=48

x=48 :12

x=4

6 0
2 years ago
Read 2 more answers
A set of weights includes a 10 lb barbell and 8 pairs of weight plates. Each pairof plates weighs 20lbs. If x pairs of plates ar
Leni [432]

It is given that the weight of the barbel is given by:

f(x)=20x+10

It says that there are eight pair of weights so x can take values from 0 to 8 and f(x) can take the values as follows:

\begin{gathered} x=0,f(x)=10 \\ x=1,f(x)=30 \\ x=2,f(x)=50 \\ x=3,f(x)=70 \\ x=4,f(x)=90 \\ x=5,f(x)=110 \\ x=6,f(x)=130 \\ x=7,f(x)=150 \\ x=8,f(x)=170 \end{gathered}

So the range is:

\mleft\lbrace10,30,50,70,90,110,130,150,170\mright\rbrace

Option B is correct.

4 0
1 year ago
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