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Gnesinka [82]
3 years ago
12

Solve this equation -k/5=7/10

Mathematics
1 answer:
liberstina [14]3 years ago
4 0
-\dfrac{k}{5}=\dfrac{7}{10}\\
-10k=35\\
k=-3.5
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Determine weather the following is real or complex <br> i^6-122-7i^2
Leona [35]

Answer:

Real

Step-by-step explanation:

i^6-122-7i^2

(i^2)^3-122-7i^2

(-1)^3-122-7×(-1)

-1-122+7

-123+7

-116

So the final answer is -116

7 0
3 years ago
If X=2<br> y=-1<br> z=3 <br>Find the value of<br><br><br>a. 2y3(cube) z2(square)​
qaws [65]

Step-by-step explanation:

2y³z²

2(-1)³(3)²

=2(-1)(9)

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6 0
3 years ago
Use Pythagorean theorem to find the missing length. (round to tenth if necessary) IS
sertanlavr [38]

11.7

Formula: a^2 + b^2 = c^2

so substitute the numbers like this:

10^2 + 6^2 = c^2

both 10^2 and 6^2 are perfect squares:

10 × 10= 100 and 6 × 6= 36

100 + 36= c^2

add:

100 + 36 =

136 = c^2

now in order to get rid of the squared, you put it into a radical:

√136 = √c^2

note: whatever you do on one side, you do to the other

it's easier to use the calculator for this so put √136 and you're gonna get 11.66

since it's asking you to round it to the nearest tenth:

11.66 = 11.7

sorry if the explanation is kinda long ✋ i tried explaining it better in the end but i failed

7 0
3 years ago
Help plz!!!!!!!!!!!!!!!!!!!!
RUDIKE [14]
4 Triangles 1/2(6)6()= 18 18x4= 72
5 squares 3X3=9. 5x9= 45

72+45= 117 sq in
5 0
3 years ago
If f(x) = 2x²+1 and g(x) =x²-7find (f-g)(x)
Karolina [17]
(2x^2-x^2)= x^2
(1+7) = 8

X^2 + 8
7 0
3 years ago
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