Answer:
answer is <em>2</em><em>5</em><em>t</em><em> </em><em> </em><em> </em><em> </em><em> </em><em>I</em><em> </em><em>DID</em><em> </em><em>THE</em><em> </em><em>TEST</em><em>!</em><em>!</em><em> </em>
A and D
To find it out on a graph is the line test
Draw a line going up and down and if it only passes the line once it’s a function but if it touches the line more then once it is not
Multiply -x+4y=28 by 2
-2x+8y=56
add to first equation
2x+10y=-20
<u>-2x+8y=56 +
</u>0x+18y=36
18y=36
divid 18
y=2
subsitute
-x+4y=28
-x+4(2)=28
-x+8=28
subtract 8
-x=20
multipy -1
x=-20
x=-20
y=2
(x,y)
(-20,2)
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Answer:
Step-by-step explanation:
which expressions are equivalent to 7-2 • 7^6
56 Step-by-step explanation: You have to substitute 6 for a because it says, "Which expression is equivalent to 7(a+2) when a=6" 7(a + 2)
7(6 + 2)
42 + 14
= 56
Answer:
C. Both factors are negative, so the product will be positive.
Step-by-step explanation: