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tensa zangetsu [6.8K]
3 years ago
5

Use elimination to solve each system of equations.

Mathematics
1 answer:
lawyer [7]3 years ago
7 0

Answer:

x=5

y=3

Step-by-step explanation:

7x=35

x= 5

3 x 5 - y= 12

15-y = 12

y= 15 - 12

y= 3

so , 5, 3

hope it helps !

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The key to solving a two-step equation is isolating the
olga55 [171]

Answer:

pretty sure its c

Step-by-step explanation:

3 0
3 years ago
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4/5, √9, -0.95, √32/8, 2.9, - √6 PLEASE order from least to greatest
Eva8 [605]

Answer:

-√6    -0.95    √32/8      4/5    2.9    √9

Step-by-step explanation:

4/5, √9, -0.95, √32/8, 2.9, - √6

4/5 = 0.8

√9 = 3

√32/8 = 4√2 / 8 = √2/2 = 0.707

-√6 = -2.449

-√6    -0.95    √32/8      4/5    2.9    √9

8 0
3 years ago
What are the approximate values of the minimum and maximum points of f(x) = x5 − 10x3 + 9x on [-3,3]? A. maximum point: (–2.4, 3
slava [35]

Answer:

(-2.4, 37.014)

Step-by-step explanation:

We are not told how to approach this problem.  

One way would be to graph f(x) = x^5 − 10x^3 + 9x on [-3,3] and then to estimate the max and min of this function on this interval visually.  A good graph done on a graphing calculator would be sufficient info for this estimation.  My graph, on my TI83 calculator, shows that the relative minimum value of f(x) on this interval is between x=2 and x=3 and is approx. -37; the relative maximum value is between x= -3 and x = -2 and is approx. +37.  

Thus, we choose Answer A as closest approx. values of the min and max points on [-3,3].  In Answer A, the max is at (-2.4, 37.014) and the min at (2.4, -37.014.

Optional:  Another approach would be to use calculus:  we'd differentiate f(x) = x^5 − 10x^3 + 9x, set the resulting derivative = to 0 and solve the resulting equation for x.  There would be four x-values, which we'd call "critical values."

3 0
3 years ago
Read 2 more answers
Find the value of y when x=3<br> y=2x3<br> y=0
MaRussiya [10]
Answer: 54

Why? You need to put 3 in for x so you get
2(3)^3
3 to the third power is 3*3*3 which equals 27
2(27)
Now you must do 2 times 27 and you get 54

Hope this helps
8 0
3 years ago
5c + 3 -2c + 5 simplify the expression
snow_lady [41]
5c + 3 - 2c + 5

        5c - 2c + 3 + 5
 
               3c + 8 ~~~
3 0
3 years ago
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