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postnew [5]
3 years ago
6

Algebra 2 unit 5 please help

Mathematics
1 answer:
Digiron [165]3 years ago
7 0
You know the formula of discriminant

a  b
c  d
that means ad-bc
So <span>we have an equation
(-12)x3-(2f)x(-w</span>²)= 2k x 3- (-14)x(-81)
0r -36 +2fw²= 6k- 1134
And 2fw²-6k+ 1098=0
But I did not know what is variable here?
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Stanley McBride is employed by the True Blue company. The PPO annual premium is $7,058. His employer pays 70% of the total cost.
Vitek1552 [10]
First deducte his contribution
7,058−7,058×0.70
=2,117.4
Then find weekly deduction
2,117.4÷52
=40.72
4 0
3 years ago
Read 2 more answers
James live 1/2 mile away from school. what is 50% of 1/2
spayn [35]

Answer: <em>1/4, i think :)</em>

7 0
3 years ago
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A construction zone on Interstate 15 has a speed limit of 40 mph. The speeds of vehicles passing through this construction zone
monitta

Answer:

a. The percentage of vehicles who pass through this construction zone who are exceeding the posted speed limit =90.82%

b. Percentage of vehicles travel through this construction zone with speeds between 50 mph and 55 mph= 2.28%

Step-by-step explanation:

We have to find

a) P(X>40)= 1- P(x=40)

Using the z statistic

Here

x= 40 mph

u= 44mph

σ= 3 mph

z=(40-44)/3=-1.33

From the  z-table   -1.67 = 0.9082

a) P(X>40)=

Probability exceeding the speed limit = 0.9082 = 90.82%

b) P(50<X<55)

Now

z1 = (50-44)/3 = 2

z2 = (55-44)/3= 3.67

Area for z>3.59 is almost equal to 1

From the z- table we get

P(55 < X < 60) = P((50-44)/3 < z < (55-44)/3)

     = P(2 < z < 3.67)

     = P(z<3.67) - P(z<2)

     = 1 - 0.9772

     = 0.0228

or 2.28%

3 0
2 years ago
The CBS’ television show 60 Minutes has been successful for many years. That show recently had a share of 20, which means that a
xxMikexx [17]
Given:
p = 20% = 0.2, sample proportion
n = 5000, sample size.
Confidence level = 95%

The confidence interval is
(p - 1.96k, p + 1.96k)
where
k=\sqrt{ \frac{p(1-p)}{n} }=\sqrt{ \frac{0.2*0.8}{5000}} =0.00566

Therefore the 95% confidence interval is
(0.1943, 0.2057) = (19.4%, 20.6%)

Answer: The 95% confidence interval is (19.4%, 20.6%)
6 0
3 years ago
3 1/4 x 5/8? that is, 3 and 1/4 times 5/8
maw [93]

Answer:

first make mixed

13/4 x 5/8

just multiply the numerator with numerator and denominator with denominator

13x5=65

4x8=32

65/32 or 2 1/32

Step-by-step explanation:

6 0
3 years ago
Read 2 more answers
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