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Crazy boy [7]
3 years ago
9

Pls i need help on these I HAVE BEEN STUCK

Mathematics
1 answer:
pochemuha3 years ago
8 0

Answer:

C for Question 3

B for Question 4

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1. 2x + 2y = 10
liq [111]
Hopefully this helped! I used the substitution method

3 0
3 years ago
3. What three numbers are the Pythagorean triple generated by using 4 for x and 1 for y. Remember to use the formulas:
Gnom [1K]

Given:

The three equations for the three numbers are

a=x^2-y^2

b=2xy

c=x^2+y^2

To find:

The Pythagorean triple generated by using 4 for x and 1 for y.

Solution:

Substituting x=4 and and y=1 in the given equations, we get

a=4^2-1^2

a=16-1

a=15

In the same way find b and c.

b=2(4)(1)

b=8

The third number is

c=4^2+1^2

c=16+1

c=17

The required Pythagorean triple is 8, 15, and 17.

Therefore, the correct option is C.

5 0
3 years ago
Help me solve thanks
Inessa [10]
Answer is (A) x < 14/5
(B) x < -21/4
7 0
3 years ago
John is making a tent for the next camping trip. The tent is pictured below. How
expeople1 [14]

Answer:

10m

Step-by-step explanation:

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5 0
3 years ago
Solve the quadratic equation numerically (using tables of x- and y- values). -4x=-x2+12
Levart [38]
-4x=-x2+12 should be written  <span>-4x=-x^2+12, with " ^ " representing exponentiation.

You are to invent a table of x values and find the difference between -4x and -x^ 2+12.  The smaller the difference, the closer you are to finding the correct root, x.

To get you started:

 x     -4x              x^2+12      difference
--- ------------   ----------------   --------------
 2       -8                 16               24 (pretty bad!)
-4       16                28              12 (better)
 -10   40              112                72 (much worse)

To answer this problem correctly, you must present such a table, even tho' it'd be faster to use the quadratic formula (or some other method) to find x.


</span>
5 0
3 years ago
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