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4 years ago

Match the following terms by evaluating the expression for x=-6

Mathematics

1 answer:

Scorpion4ik [409]4 years ago

5 0

The sum of 2 opposites =0
X+6 would now equal 0
So your answer is 0

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Solving systems of equations<br><br> X-2y=0<br> Y=2x-3

bearhunter [10]

$\left \{ {{x-2y=0} \atop {y=2x-3}} \right. \\\\Substitute\ second\ equation\ to\ first:\\\\x-2(2x-3)=0\\x-4x+6=0\\-3x=-6\ \ \ \ \ |:-3\\x=2\\\\y=2\cdot2-3\\y=4-3=1\\\\ \left \{ {{y=1} \atop {x=2}} \right.$

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4 years ago

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Can someone help me please

ss7ja [257]

Answer:I think it’s c

Step-by-step explanation:

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3 years ago

Elena is designing a paint can with thickness ttt millimeters and height hhh centimeters. She calculates that the thickness of t

Degger [83]

Answer:

$t \ge h$ and $t + 0.5h \le 12.0$

Step-by-step explanation:

Given

$t= thickness$

$h =height$

From the first statement, we have that:

$t\ mm \ge 0.1 * h\ cm$

Convert mm to cm

$t\ * 0.1*cm \ge 0.1 * h\ cm$

$t\ *0.1 \ge 0.1 * h$

Divide both sides by 0.1

$t \ge h$

From the second statement, we have that:

$Cost \le 12.2$

Substitute 0.2 + t + 0.5h for Cost

$0.2 + t + 0.5h \le 12.2$

Collect Like Terms:

$t + 0.5h \le 12.2-0.2$

$t + 0.5h \le 12.0$

So, the inequalities are:

$t \ge h$ and $t + 0.5h \le 12.0$

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3 years ago

Given f(x) = 10 -2xfind f(7). –4 3 7 56

strojnjashka [21]

Answer: $f(7)=-4$

Step-by-step explanation:

1. You have the following function given in the problem:

$f(x)=10-2x$

2. Then, to find $f(7)$ asked in the exercise, you only need to substitute $x=7$ (which is the input value) into the given function.

3. Therefore, keeping the above on mind, you obtain that $f(7)$ is:

$x=7$

$f(7)=10-2(7)$

$f(7)=10-14$

$f(7)=-4$

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3 years ago

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What is the answer to 9x + 10 = -8

Bess [88]

Answer: the answer should be x=-2

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3 years ago

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