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Pepsi [2]
3 years ago
14

Y = x2 -4x-32 what is the minimum

Mathematics
1 answer:
Lera25 [3.4K]3 years ago
7 0
There ya go hope that helped

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Please help asap....​
quester [9]

Answer: B or D

Step-by-step explanation:

8 0
2 years ago
Read 2 more answers
Mariam is making
ira [324]

Answer:

  no

Step-by-step explanation:

A trapezoid is shown, not a bag. If we assume that this shape is supposed to be the front of the bag, Mariam does NOT have enough pink fabric to make the front of the bag from pink fabric.

The area of the trapezoid shown is ...

  A = (1/2)(b1 +b2)h

  A = (1/2)(9 in + 8 in)(15 in) = 127.5 in^2

This area is larger than the amount of fabric Mariam has, so she does not have enough.

3 0
2 years ago
Find the inverse of<br><br> f(x) = -6xˆ2 + 24x - 100
monitta

Answer:

See below

Step-by-step explanation:

y = -6x^2 + 24x-100

solve for 'x'

y + 100 =   -6x^2 + 24x   = -6(x^2-4x)    complete the square for x

(y+100) /(-6 ) =    (x-2)^2 -4                     add 4 to both sides

(y+100)/(-6) +4   = (x-2)^2                       sqrt both sides

sqrt [  ( y+100)/(-6) + 4  ]  + 2 = x           change  x and y

y = ± sqrt [ (x+100)/(-6) + 4 ] + 2            simplify (if needed)

<u>y  = ± sqrt( -x/6 -12.666)  + 2 </u>

5 0
2 years ago
1/3x+5=2 using fraction busters
svet-max [94.6K]
The answer is 9.
1/3 x + 5=2
The fraction buster is 3/1
1/3 times 3/1= 1x
5/1 times 3/1=15/1
2/1 times3/1= 6/1
X+15=6
-6 -6
X=9
4 0
3 years ago
Hello<br><br> i need help with this<br><br> plz see attachmentss below
NemiM [27]

Problem 1

Answer: Choice C) sample is appropriately large; margin of error is plus/minus 0.187

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

Explanation:

At 90% confidence, the z critical value is roughly z = 1.645 (this is found using a table in the back of your textbook)

n = 250 is the sample size, which is appropriately large (it's over n = 30)

s = 1.8 is the standard deviation

The margin of error E is found by the formula below

E = z*s/sqrt(n)

E = 1.645*1.8/sqrt(250)

E = 0.18727008303518

E = 0.187

note: the sample mean is not used at all in the computation of the margin of error.

===========================================

Problem 2

Answer: Choice D) both are effective; however, Intensity program is more effective compare to Q30X program

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

Explanation:

There's not much to say here other than your teacher really wrote a lot to set up this problem. There's a lot of extra filler that you need to toss out and ignore. Basically the short of it is that Brant wants to run faster so he tests two programs. He finds that both are effective (since they both yield roughly the same percent decrease in run times) but the Intensity program is better by two percentage points. It's not much, but it's something. So this is why the answer is choice D.

===========================================

Problem 3

Answer: Choice A) appropriately large; margin of error is plus/minus 0.079

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

Explanation:

n = 150 is the sample size. It is appropriately large as it is over n = 30

At 95% confidence, using a stats table (in the back of your book) you should find the critical value is z = 1.960

p = 0.56 is the decimal version of 56%, this is the proportion of those who use public transportation

We'll use a slightly different margin of error formula. This time it's to measure the error for proportions (rather than means)

E = z*sqrt(p*(1-p)/n)

E = 1.960*sqrt(0.56*(1-0.56)/150)

E = 0.07943845584267

E = 0.079


4 0
3 years ago
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