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Korvikt [17]
3 years ago
6

{7u+2v=1 {17u+6v=−9 System of equation Please Explain

Mathematics
1 answer:
morpeh [17]3 years ago
4 0

Answer:

u= -3  v=11

Step-by-step explanation:

7u+2v=1     17u+6v=-9

-3(7u+2v=1)= -21u-6v=-3

-21u-6v=-3  +  17u+6v=-9 = -4u= -12

u=-3

7(-3)+2v=1

-21+2v=1

2v=22

v=11

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tino4ka555 [31]

Answer:

4.3275

next time use a standard deviation calculator they are really easy to use just look it up on google

6 0
3 years ago
please help me !!! If k 1/2 = integer and k1/4 = integer, which is a possible value for k? A)-625 B)-64 C)-1 D)625
Xelga [282]
D. 625 is the right answer
5 0
3 years ago
What is 469.82 plus 8.5 sales tax
alekssr [168]
Hey!


The first step to solving this problem would be to multiply 469.82 by 0.085.

<em>New Equation :</em>
469.82 × 0.085 = ?

<em>Solution {New Equation Solved} :</em>
469.82 × 0.085 = 39.9347

Ignore the forty seven at the end of the solution. You're only going to need 39.93. Now we'll add 469.82 and 39.93. This is the sales tax plus the regular price. Which will then bring us to our total.

<em>New Equation :</em>
469.82 + 39.93 = ?

<em>Solution {New Equation Solved} :</em>
469.82 + 39.93 = 509.75

<em>So, 469.82 plus 8.5 sales tax is</em>  509.75.

Hope this helps!


- Lindsey Frazier ♥
4 0
3 years ago
44/35 as a mixed number
joja [24]

44/35 = 1 9/35

So, your answer is 1 9/35

4 0
3 years ago
Read 2 more answers
The distance between each base on a field is 90 ft. How far does a catcher have to throw the ball from home plate to second base
Gnoma [55]

Step-by-step explanation:

A baseball field is in the shape of a square (or diamond).  Home plate and second base are opposite corners of each other.  So the distance is equal to the diagonal of the square.

Use Pythagorean theorem to find the diagonal, or use properties of a 45-45-90 triangle.

Using Pythagorean theorem:

c² = a² + b²

c² = (90 ft)² + (90 ft)²

c = 90√2 ft

c ≈ 127 ft

7 0
3 years ago
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