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elixir [45]
3 years ago
11

Us the expression (8x + 2) + (- 9x + 7)

Mathematics
1 answer:
malfutka [58]3 years ago
7 0

Answer:

8x2=16 9x7=63

63+16=79

Step-by-step explanation:

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Given z=-4-6i<br> Write down the conjugate of z
maks197457 [2]

Answer:

z = -4 + 6i

Step-by-step explanation:

A math conjugate is formed by changing the sign between two terms in a binomial. For instance, the conjugate of x+y is x−y . We can also say that x+y is a conjugate of x−y . In other words, the two binomials are conjugates of each other.

5 0
3 years ago
the sum of the digits of a two-digit number is 14. the first digit is 4 less than twice the second digit. what is the number
Blizzard [7]

Answer:

86

Step-by-step explanation:

t = ten's digit    u= one's digit

t + u = 14            t = 2u - 4

In the first equation substitute for t 2u - 4 that we find in the second equation above.

t + u = 14

2u - 4 + u = 14  Combine the u's

3u - 4 = 14  Now add 14 to both sides

3u = 18  Divide both sides by 3

u = 6.  We found the unit's digit, now we will find the ten's unit by plugging in 6 for u in the first equation above.

t + u = 14

t + 6 = 14  Subtract 6 from both sides

t = 8

So, your answer is 86.

5 0
2 years ago
A rectangle has a width of 9 units and a length of 40 units. What is the length of a diagonal?
DedPeter [7]
Pythagoras tells us that the diagonal is √(9²+40²) = 41.
Answer C.
3 0
4 years ago
Read 2 more answers
Find the product of (1/5x^3)(10x)(1/5x^2)​
Colt1911 [192]

Answer:

2/5x^6

Step-by-step explanation:

Times 1/5x^3 and 10x first

\frac{1}{5} x {}^{3}  \times  \frac{10}{1} x =  \frac{10}{5} x {}^{4}

then Times the ans you got with 1/5x^2

\frac{10}{5} x {}^{4}  \times  \frac{1}{5} x  {}^{2}  =  \frac{10}{25} x {}^{6}

After that you simplify Ur ans.

The numerator and the denominator are a multiple of 5 so divide both by 5.

You will get your ans

\frac{10}{25} x {}^{6}  =  \frac{2}{5} x {}^{6}

7 0
4 years ago
A line that has a y-intercept of -3 and a slope of -2
BlackZzzverrR [31]
Slope intercept form is the following: y=mx+b, m = slope, and b = y-intercept. Following this, the equation of the line should be: y = -2x + -3 Hope this helps :)
8 0
4 years ago
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