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Leno4ka [110]
4 years ago
6

Evaluatethe expression 6x2-3x+1 for x=-2

Mathematics
1 answer:
Ad libitum [116K]4 years ago
4 0

Answer:

31

Step-by-step explanation:

6(-2)^2 - 3(-2) + 1

6(4) + 6 +1

24 + 6 + 1 = 31

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Six apples and one pear cost $1.07. At the same price, three apples and six pears cost $1.47. An apple costs
notsponge [240]

Answer: \$0.15

Step-by-step explanation:

Given

Six apples and one pear cost \$1.07

Also, three apples and six pears costs \$1.47

Suppose x and y be the price of apple and pear. So, we can write the cost as

\Rightarrow 6x+y=1.07\quad \ldots(i)\\\Rightarrow 3x+6y=1.47\quad \ldots(ii)\\\text{solve (i) and (ii) we get}

x=0.15,\  y=0.17

The cost of an apple is \$0.15

6 0
3 years ago
There are 4 semi- trailer truck park a line at the stop. After the first truck, each in the line weights 2 tons more than the tr
Anna11 [10]

Let's say the first truck weighs x tons

Then, the weight of 2nd truck = x+2 tons

The weight of 3rd truck = (x + 2) + 2 = x+4 tons

The weight of 4th truck = (x + 4) + 2 = x+6 tons

Total weight of 4 trucks:

x + (x+2) + (x+4) + (x+6) = 32

 

which can be solved easily to give x = 5

5 0
3 years ago
Find the value of X.​
miv72 [106K]

Answer:

x = 8√2 units

Step-by-step explanation:

On a 45-45-90 triangle,<em> the ratio between one of the legs </em>(both are congruent)<em> and the hypotenuse is 1 : √2</em> (Improper but it still sends the message). That means the hypotenuse is √2 times as long as a leg.

x = 8 × √2

x = 8√2 units

4 0
3 years ago
HELP ME PLSSSSSSSSSSSSSSSSSSSSSSS
Alisiya [41]

Answer:

39.5

Step-by-step explanation:

it's how many times 0.08 goes into 3.16

5 0
3 years ago
Read 2 more answers
Bias can _____ be completely eliminated
OleMash [197]

Answer:

my guess is <u>not</u>

Step-by-step explanation:

Bias is something that all humans can not completely remove because we have different likes and dislikes. Some people will always favor one thing over another.

5 0
3 years ago
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