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ANTONII [103]
3 years ago
14

Can you help me with these too? its for a geometry final practice plisss

Mathematics
2 answers:
Dahasolnce [82]3 years ago
7 0
Angles 6 and 7

So answer B and C
Rainbow [258]3 years ago
6 0

Answer:

I think A and C

Step-by-step explanation:

Im srry if its wrong, but my older sister says that its A and C

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tomas wrote an equation 4/5x-8=. Finish the equation so that the equation will have no solution. Explain how you know.
Pepsi [2]

Answer:

Right part: \dfrac{4}{5}x+a, where a\neq -8.

Step-by-step explanation:

Linear equation have no solution if it is impossible for the equation to be true no matter what value we assign to the variable x.

The left part of the equation Tomas wrote is

\dfrac{4}{5}x-8.

The right part of the equation should be of the form

\dfrac{4}{5}x+a,

where a\neq -8.

In this case, the equation will take look

\dfrac{4}{5}x-8=\dfrac{4}{5}x+a,\\ \\-8=a.

Since a\neq -8, this equality is always false.

Remark: 1) If a=8, the equation \dfrac{4}{5}x-8=\dfrac{4}{5}x+a is equivalent to the equation

\dfrac{4}{5}x-8=\dfrac{4}{5}x-8,\\ \\0=0

and the lest equation has infinitely many solutions.

2) When coefficient at x differs from \dfrac{4}{5}, the equation has unique solution.

6 0
3 years ago
Elizabeth earned a grade of 85% on her multiple-choice science final that had a total of 160 problems. How many problems on the
Naily [24]

Answer:

135

Step-by-step explanation: Multiply 160 by 0.85(for 85%) and you get 135

7 0
4 years ago
Help help help pelesss please
blagie [28]

Answer:

its 1

Step-by-step explanation:

it literly says it on the grid and its really simple

8 0
3 years ago
Solve the simultaneous equations
Elza [17]

Answer:

3

Step-by-step explanation:

2×-3y = 12 ( multiply whit 4)

3x + 4y =1 (multiply whit 3 )

8x -12y =48

9X+ 12y = 3

if you add this equations

17X =51

X= 51 / 17

x=3

7 0
3 years ago
Read 2 more answers
Solve the equation 11x + 16y = 13 for y.<br><br> The solution is y = ? <br> .
wariber [46]

Answer:

y=13/16 minus 11x/16

I hope this helps :-)

5 0
3 years ago
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