Evaluate: 4+8\div2\times \left(6-3\right)
18
25
16
33

Answer:

Roots are also called x-intercepts or zeros. A quadratic function is graphically represented by a parabola with vertex located at the origin, below the x-axis, or above the x-axis. Therefore, a quadratic function may have one, two, or zero roots. are given by the quadratic formula.

Step-by-step explanation:

Answer:

Step-by-step explanation:

The associative property states that you can add or multiply regardless of how the numbers are grouped.

Answer: 1/4 s^2 or [tex]\frac{1}{4} s^{2}[/tex]

Answer:

I READY

Step-by-step explanation:

Answer:

The z-score for an ACT score of 26 is 0.17.

Step-by-step explanation:

Z-score:

In a set with mean [tex]\mu[/tex] and standard deviation [tex]\sigma[/tex], the zscore of a measure X is given by:

[tex]Z = \frac{X - \mu}{\sigma}[/tex]

The Z-score measures how many standard deviations the measure is from the mean. After finding the Z-score, we look at the z-score table and find the p-value associated with this z-score. This p-value is the probability that the value of the measure is smaller than X, that is, the percentile of X. Subtracting 1 by the pvalue, we get the probability that the value of the measure is greater than X.

In a particular year, the mean score on the ACT test was 25 and the standard deviation was 5.9.

This means that [tex]\mu = 25, \sigma = 5.9[/tex]

Find the z-score for an ACT score of 26.

This is Z when X = 26. So

[tex]Z = \frac{X - \mu}{\sigma}[/tex]

[tex]Z = \frac{26 - 25}{5.9}[/tex]

[tex]Z = 0.17[/tex]

The z-score for an ACT score of 26 is 0.17.

Answer:

3260

Step-by-step explanation:

yeah ok

Answer:

18x+8

Step-by-step explanation:

distribute

2 x 9x = 18x

2 x 4 = 8

Hope This Helps!!

Answer:

(11/2, 5/2)

Step-by-step explanation:

x+x-3=8

2x=11

x= 11/2

y= 11/2-3

y= 5/2

Answer:

(-3,-1) -> (3,1)

Step-by-step explanation:

Reflection over the y-axis:

When we reflect a point (x,y) over the y-axis, it's y-coordinate is kept, while the x-coordinate changes signal. So

(3,-1) -> (-3,-1)

Clockwise rotation of 180º

Both coordinates of the point change signals. So

(-3,-1) -> (3,1)

Answer:

Select the third answer listed which states: 6/5 * 9/4

Step-by-step explanation:

To find how many of a quantity x are in another quantity y, we normally divide in the following fashion:

y divided by x = y ÷ x = y / x

Then we do the same here: 6/5 divided by 4/9  =  6/5 ÷ 4/9 = 6/5 * 9/4

(using the properties of division of fractions as equal to the product of the first one times the reciprocal of the second one)

Answer:

3rd one

Step-by-step explanation:

x= 139°

180-41= 139°

hope this helped:)

Answer:

Imao

Step-by-step explanation:

Answer:

Step-by-step explanation:

Answer:

-32

Step-by-step explanation:

Answer:

a.) f(x) = [tex]\frac{1}{30}[/tex] where 90 < x < 120

b.) [tex]\frac{2}{3}[/tex]

c.)  [tex]\frac{2}{3}[/tex]

d.)  [tex]\frac{1}{2}[/tex]

Step-by-step explanation:

Let

X be a uniform random variable that denotes the actual charging time of battery.

Given that, the actual recharging time required is uniformly distributed between 90 and 120 minutes.

⇒X ≈ ∪ ( 90, 120 )

a.)

Probability density function , f (x) = [tex]\frac{1}{120 - 90} = \frac{1}{30}[/tex] where 90 < x < 120

b.)

P(x < 110) = [tex]\int\limits^{110}_{90} {\frac{1}{30} } \, dx[/tex]

               = [tex]\frac{1}{30}[x]\limits^{110}_{90} = \frac{1}{30} [ 110 - 90 ] = \frac{1}{30} [ 20] = \frac{2}{3}[/tex]

c.)

P(x > 100 ) = [tex]\int\limits^{120}_{100} {\frac{1}{30} } \, dx[/tex]

                 = [tex]\frac{1}{30}[x]\limits^{120}_{100} = \frac{1}{30} [ 120 - 100 ] = \frac{1}{30} [ 20] = \frac{2}{3}[/tex]

d.)

P(95 < x< 110)  = [tex]\int\limits^{110}_{95} {\frac{1}{30} } \, dx[/tex]

                       = [tex]\frac{1}{30}[x]\limits^{110}_{95} = \frac{1}{30} [ 110 - 95 ] = \frac{1}{30} [ 15] = \frac{1}{2}[/tex]

Answer: Triangle QRS is an isosceles triangle because QR = RS.

. Step-by-step explanation: Find the length of each side of the triangle using the formula for calculating the distance between two points.

Step-by-step explanation:

Answer:

0

Step-by-step explanation:

Answer: the sum is 1301

Answer:

1301

Step-by-step explanation:

1005 + 296 = 1301

Answer:

But does not touch the horizontal axis.

Step-by-step explanation:

The curve of a normal distribution extends indefinitely at the tails but does not " ​touch the horizontal axis."

The reason for this is that the tails of the curve suggest that a variable can take on any theoretically reasonable value, although the probability of such occurrence is considerably low.

Generally, a normal distribution curve is considered to be asymptotic to the horizontal axis.

In this exercise we have to have knowledge about distribution and complete the sentence, thus we find:

The curve of a normal distribution extends indefinitely at the tails but does not ​ but does not touch the horizontal axis.

The great utility of this distribution is associated with the fact that it quite satisfactorily approximates the frequency curves of physical measurements, this curve is known as the normal or gaussine distribution.

Returning to the exercise we have to:

That when we deal with a normal distribution we will have that the tail will not touch the horizontal axis since that way it would mean that it reached zero.

See more about normal distribution at brainly.com/question/12421652

Answer:

0.5555555555555555555555

Step-by-step explanation:

Answer:

they provided cheap labour

Step-by-step explanation:

this is because Africans were sold as slaves to the rich colonialists.

Answer:

Learned

Step-by-step explanation:

I luv u!

itis 8 cause we added

Answer:

3

Step-by-step explanation:

8 < 3   no

8 = 3   no

8 > 3   yes

so the answer is 3

Lower quartile. The correct option is A

The lower quartile, often known as the first quartile or Q1, is a measure of central tendency that separates the bottom 25% of a data set from the rest of the data.

In this instance, five out of the 20 students received scores of 70 or lower, which equals a 25% proficiency rate.

Therefore, 70 or below is the lower quartile.

Learn more about Lower quartile here : brainly.com/question/28169373

#SPJ1

Answer:

C

Step-by-step explanation

3x--x=4x

1-2=-1

1/2 x 4x=2x

1/2x-1=-1/2

Answer:

= 16 /15  (Decimal: 1.066667)

Step-by-step explanation:

4 /6 + 2 /5

= 4 /6 + 2 /5

= 2 /3 + 2 /5

= 10 /15 + 6 /15

= 10+6 /15

= 16 /15  (Decimal: 1.066667)

Answer:

16/15 or 1 1/15 as a mixed number

Step-by-step explanation: