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katrin2010 [14]
4 years ago
13

Solve the equation 2(3x + 7) = -22

Mathematics
2 answers:
Anna71 [15]4 years ago
6 0
2(3x + 7) = -22
6x + 14 = -22
6x = -22 - 14
6x = -36
x = - 36/6
x = -6

or this way...
2(3x + 7) = -22...divide both sides by 2
3x + 7 = -22/2
3x + 7 = -11
3x = -11- 7
3x = -18
x = -18/3
x = -6


maks197457 [2]4 years ago
5 0
<span>2(3x + 7) = -22
Use distributive property
6x+14=-22
Subtract 14 from both sides
6x=-36
Divide 6 on both sides
Final Answer: x=-6</span>
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F(x) = -8 (5-x), what is the value of f(-4)?
Morgarella [4.7K]

Answer:

f(-4) is basically just saying that you need to use the function given while x = -4.

The function given:

f(x) = -8(5-x)

We see that f(-4) means that x has to be -4, so we can substitute it in:

f(-4) = -8(5-(-4))

f(-4) = -8(9)

f(-4) = -72

Therefore, f(-4) is -72.

4 0
3 years ago
[(4x + 15) / 5x)] = 1/2
Arada [10]
One way in which to approach this problem would be to treat it as an equation of ratios and to cross multiply:

<span>[(4x + 15) / 5x)] = 1/2  could be written as:

4x + 15        1
----------- =  ---
     5x           2

Then 8x + 30 = 5x

3x = -30,  and so     x = -10 (answer).  Be certain to check this answer through substitution!

</span>
6 0
3 years ago
Suppose that the universal set is U={1,2,3,4,5,6,7,8,9,10}. Express each of the following subsets with bit strings (of length 10
Vladimir [108]

Answer:

0011100000

1010010001

0111001110

Step-by-step explanation:

As the question is not complete, Here is the complete question.

Suppose that the universal set is U = {1, 2, 3, 4, 5, 6, 7, 8, 9, 10}. Express each of these sets with bit strings where the ith bit in the string is 1 if i is in the set and 0 otherwise.

a) {3, 4, 5}

b) {1, 3, 6, 10}

c) {2, 3, 4, 7, 8, 9}.

So, we need to express a) b) and c) into bit strings.

Firstly, number of elements in the universal set represent the number of bits in the bit string.

Secondly, 1 = yes element is present in both universal set as well as in sub set.

0 = No, element is not present in sub set but present in universal set.

Hence, we have:

a) Sub set {3,4,5} = 0011100000  (As there are 3 1's which means only 3,4,5 are present in both universal set and subset.

Similarly,

b) Sub set {1, 3, 6, 10} = 1010010001

c) Sub set {2, 3, 4, 7, 8, 9} = 0111001110

5 0
3 years ago
Help me !!! ASAP!!!!
natima [27]
X intercept is (14/9,0)
Y intercept is (0,-2)
4 0
3 years ago
Read 2 more answers
What’s 3/4 x 22/7 x 2
Zolol [24]

Answer:

4\frac{5}{7}

Step-by-step explanation:

we just multiply numerator by numerator and denominator by denominator

3/4x22/7

66/28x2/1

132/28

4 20/28

4 5/7

Hopes this helps,please mark brainliest

3 0
1 year ago
Read 2 more answers
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