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uysha [10]
3 years ago
9

Evaluate the function for x = –2a, if a = 3. f(x)= -4x+7

Mathematics
1 answer:
wariber [46]3 years ago
7 0
I got -17; hoped you liked it
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From a random sample of 40 people at a dinner party, 15 ordered the steak dinner. If there are a total of 212 people at the dinn
vesna_86 [32]
B maybe or A
Because 15 percent of 212 is 31.8 so it’s closer to 40 maybe
5 0
3 years ago
Using the quadratic formula to solve 7x2 -x = 7, what are the values of x?
Sunny_sXe [5.5K]

Answer:

x=-7

Step-by-step explanation:

7x2-x=7

7x2=14.

14-x=7

When you finished the last step, you will subtract 14 to both sides.

14-x=7

14-14-x=7-14

this will cancel out the 14 on the left.

And will leave you with:

-x=7-14

7-14 is -7.

and this will get you to

-x=-7

To finish this off, you have to turn the negative x/variable, into a positive x/variable.

So, you will divide both sides of the equation by the same term.

-x = -7

into

\frac{-x}{1} =\frac{-7}{1}

and it will be -7.

I hope this helps      :)

8 0
3 years ago
the jars of paint in the art room have different amounts of paint the green paint jar is 4/8 School the purple paint jar is 4/6
s344n2d4d5 [400]
4/8 is less than 4/6. therefore, the green jar is less full.
4 0
3 years ago
Consider U = {x|x is a real number}. A = {x|x ∈ U and x + 2 > 10} B = {x|x ∈ U and 2x > 10} Which statements are true? 5 ∉
-Dominant- [34]

x+2 > 10 solves to x > 8 after we subtract 2 from both sides

So set A is the set of real numbers that are larger than 8. The value 8 itself is not in set A. The same can be said about 5 as well.


Set B is the set of values that are larger than 5 since 2x > 10 turns into x > 5 after dividing both sides by 2. The value x = 5 is not in set B since x > 5 would turn into 5 > 5 which is false. The values x = 6, x = 8, and x = 9 are in set B.


----------------


Summarizing everything, we can say...

5 is not in set A. True

5 is in set B. False

6 is in set A. False

6 is not in set B. False

8 is not in set A. True

8 is in set B. True

9 is in set A. True

9 is not in set B. False


5 0
3 years ago
Read 2 more answers
What is pythagoras triplets?
dedylja [7]
A pythagoras triplet is a set of three numbers ... not just any three numbers,
but a set where the (square of one of them) is the sum of the (squares of the
other two). 

If they're related in that way, then they can be the lengths of the sides of a
right triangle.

If they're not, then they can't.
5 0
3 years ago
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