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Natali5045456 [20]
4 years ago
7

Which expression is equivalent to (−22−14n)+(−7+16n)?

Mathematics
1 answer:
monitta4 years ago
5 0

Answer:

3x+2 and 3x + 6 are equivalent expressions, because the value of both the expressions remains same for any value of x. For instance, for x = 4, 3x+2 = 34+2 = 18 and. 3x + 6 = 3 x 4 + 6 = 18.

Step-by-step explanation:

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A calculator displays a result as 1.3540980 107 kg. the estimated uncertainty in the result is ±2%. how many digits should be i
yan [13]
<span>2 significant digits.
       
Let's see what the range of possible values you can have for 1.3540980 if your uncertainty is +/- 2% 2% of 1.3540980 = 0.02 * 1.3540980 = 0.027082 So the lowest possible value for your result is 1.3540980 - 0.027082 = 1.327016 The largest possible result is 1.3540980 + 0.027082 = 1.38117996 Notice that only the 1st 2 digits of the result match which is reasonable since a 2% error means that your result is only accurate to within 1 part in 50.</span>
3 0
3 years ago
If Robbie wants to save money to buy a car, he must get a part time job.
Alla [95]
He will eventually make enough money to buy his car

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3 years ago
What is the following product? (5√2-4√3)(5√2-4√3)
Galina-37 [17]

Step-by-step explanation:

(5√2-4√3)(5√2-4√3)=

(5√2-4√3)^2=(5√2)^2+(4√3)^2-2(5√2)(4√3)

=25*2+16*3-10√2*4√3

=50+48-10√2*4√3

=98-10√2*4√3 is the answer

6 0
3 years ago
What’s the value of <br> tan (3arc cos 3/4)
Volgvan
<h2>Answer: -1.469</h2>

This trigonometric function can be written as:

tan (3 cos^{-1} (\frac{3}{4}))   (1)

Firstly, we have to solve the inner parenthesis:

cos^{-1} (\frac{3}{4})= 41.409   (2)

Substituting (2) in (1):

tan (3(41.409))=tan(124.228)   (4)

Finally we obtain the value:

tan(124.228)=-1.469  

6 0
3 years ago
Read 2 more answers
Is ( 0,0) a solution to this system? y&lt;=x^2-4 y&gt;2x-1?
Xelga [282]

Answer:

The point (0,0) is not a solution of the system of inequalities

Step-by-step explanation:

we have

y\leq x^{2} -4 -----> inequality A

y> 2x-1 -----> inequality B

we know that

If a ordered pair is a solution of the system of inequalities

then

the ordered pair must be satisfy the inequalities of the system

Verify

For x=0, y=0

substitute the value of x and the value of y in the inequalkity A and in the inequality B

Inequality A

0\leq 0^{2} -4

0\leq -4 -------> is not true

therefore

The point (0,0) is not a solution of the system of inequalities

3 0
3 years ago
Read 2 more answers
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