Answer:
4-2 = 2
2x5+9 = 19
2^19 = 2x2x2x2x2x2x2x2x2x2x2x2x2x2x2x2x2x2x2 = 524288
Answer:
29
Step-by-step explanation:
Use PEMDAS
P- Parenthesis
E- Exponents
M- Multiply
D- Divide
A- Add
S- Subtract
(4-2)^2×5+9 first you do parenthesis which is (4-2)=2
(2)^2×5+9 next the exponents (2)^2=4
4×5+9 now the multiplication, 4×5=20
20+9 And now finish it off with the addition
So the answer ends up being 29.
Look at ZV SW and ZTSW in the image below.
Which of the following is the best description for this pair of angles?
O acute
O complementary
O straight
supplementary
Answer:
Supplementary is your answer
Consider the original triangle and the reduction.
A triangle has a base A and height 8 centimeters. Another triangle has a base of 3 centimeters and height of 4 centimeters.
What is the length of side A in centimeters?
6 cm.
Explanation:
Since they've given use the area of the triangle, we can use the area formula to find the base of the triangle.
The formula to find the area of a triangle is:
a
=
1
2
h
b
→
(
h = height
,
b= base
)
We know:
a
=
24
h
=
8
So we can substitute them in and find
b
:
24
=
1
2
(
8
)
b
Multiply by sides by 2 and then divide:
24
×
2
=
1
2
(
8
)
b
×
2
48
=
8
b
6
=
b
The base of the triangle is
6 cm.
ur welcome ♥️♥️
Match the following research designs to the appropriate inferential statistic Group of answer choices Predictor: categorical with 4 levels; Outcome: categorical with 2 levels [ Choose ] Predictor: categorical with 2 levels; Outcome: continuous [ Choose ] Predictor: continuous; Outcome: continuous [ Choose ] Predictor: categorical with 4 levels; Outcome: continuous
Answer:
Chisquare test
t - test
Correlation
ANOVA, F ratio.
Step-by-step explanation:
The Chisquare test is suitable for testing categorical variables with factors levels more than 3.
The t test of independence is suitable for testing continous variable, however re we use the two independent sample t test.
Correlation test is used to examine the relationship between two continous variable, cannot be used for categorical variables.
Analysis of Variance is use to test categorical variables with at lead three factor levels. The F ratio allows measurement and establishing of statistical significance exists between variables.
Please help me!! I will try to give brainliest
Can anyone tell me the correct answer of this. I already have it but I wanna make sure. please
Answer:
x = 44.3°
Step-by-step explanation:
Redrawing the triangle,
To obtain x, we can apply the trigonometric relation :
Sin x = opposite / hypotenus
Opposite side = 6.5
Hypotenus = 9.3
Sin x = 6.5/9.3
x = sin^-1(6.5 / 9.3)
x = 44.34
x = 44.3°
Write the slope intercept form of the equation of the line through the given point with the given slope. Through (-5 -2) slope -3/5.
Write the slope intercept form of the equation of the line through the given pointS
Through (2 -1) and (5,5)
Answer:
y = -3/5 × -5 - 2y = 2 × -1 + 2Step-by-step explanation:
#1
y = mx + bm = -3/5, x = -5, b = -2, y = yput in correct order#2
(2, -1) - (5,5) = 6/3 = 2/1 = 2 (remember, y is over x. The formula is y2 - y1 / x2 - x1)Pick either point given (2, -1) or (5, 5)Plug the point iny = y, m = 2, x = 2, b = -1Put in order#1
Equation in point slope form
y-y_1=m(x-x_1)y+2=-3/5(x+5)y=-3/5x-3-2y=-3/5x-5That's also slope intercept form
#2
Slope
m=(5+1)/5-2)m=6/3m=2Equation in point slope
y+1=2(x-2)y+1=2x-4y=2x-5at davidson's bike rentals it cost $42 to rent a bike for 9 hours. how many hours of bike use does a customer get per dollar?
Answer:
3/14 of an hour
Step-by-step explanation:
9 hours/42 dollars
Question 20 of 25
The houses on a city block were thought to be valued at $172,000, $164,000,
$142,000, $159,000, $191,000, $124,000, and $146,000, respectively. But a
public assessor has determined that the value of each house is actually
$20,000 higher than previously thought. According to the public assessor,
what is the median value of the houses?
A. $166,000
B. $146,000
C. $179,000
D. $159,000
SU
Answer:
Median = $179,000
Step-by-step explanation:
Given prices of the houses :
$172,000 , $164,000 , $142,000 , $159,000 , $191,000 , $124,000 , $146,000
Arrange the data in ascending order :
$124,000 , $142,000 , $146,000 , $159,000, $164,000 , $172,000, $191,000
Prices according to the public assessor :
$144,000 , $162,000 , $166,000 , $179,000 , $184,000, $192,000, $211,000
Median is the middle value in the data : $179,000
Bob went to a baseball game the game started at 9:41 a.m. and it was 3 hours and 43 minutes long when did the game end
Answer:
The game ended at 1:24 p.m.
Step-by-step explanation:
Kate is granted a 4.6% salary increase. If Kate's current salary is 2,500 per month, ind Kate's new monthly salary, rounded to the nearest dollar.
kates new salerie = 2500(1+0.046)= 2615 dollars
What is the end behavior of (x, 1) and (5x, -3)?
Answer:
The leading term is 5x8. Since n is even and a is positive, the end behavior is down and up.
Four decreased by the product of a number and 7 is equal to 11
Answer:
See image below:)
Step-by-step explanation:
Answer:
[tex]y=2\frac{1}{7}[/tex]
Step-by-step explanation:
(y · 7) - 4 = 11
7y - 4 = 11
7y - 4 + 4 = 11 + 4
7y = 15
7y ÷ 7 = 15 ÷ 7
[tex]y=2\frac{1}{7}[/tex]
Using the proper terminology, how would you explain and visually demonstrate that this is not always the case.
Answer:
you drew to much on it
Step-by-step explanation:
Suppose a large shipment of telephones contained 21% defectives. If a sample of size 498 is selected, what is the probability that the sample proportion will differ from the population proportion by less than 3%
Answer:
[tex]P(-3\% < x < 3\%) = 0.901[/tex]
Step-by-step explanation:
Given
[tex]p = 21\%[/tex]
[tex]n = 498[/tex]
Required
[tex]P(-3\% < x < 3\%)[/tex]
First, we calculate the z score
[tex]z = \sqrt{p * (1 - p)/n}[/tex]
[tex]z = \sqrt{21\% * (1 - 21\%)/498}[/tex]
[tex]z = \sqrt{21\% * (79\%)/498}[/tex]
[tex]z = \sqrt{0.1659/498}[/tex]
[tex]z = \sqrt{0.000333}[/tex]
[tex]z = 0.0182[/tex]
So:
[tex]P(-3\% < x < 3\%) = P(-3\%/0.0182 < z <3\%/0.0182)[/tex]
[tex]P(-3\% < x < 3\%) = P(1.648 < z <1.648)[/tex]
From z probability, we have:
[tex]P(-3\% < x < 3\%) = 0.901[/tex]
I will mark the brainliest 500 points
Answer:
50.3
Step-by-step explanation:
Answer:
50.3
Step-by-step explanation:
I know this because im smaart
5 pts
Question 6
Write the first five terms of the geometric sequence where Q1
Sand r = 3
O {8, 24, 72, 216, 648}
O {8, , , ,
O {3, 24, 192, 1536, 9216}
O {8, 11, 14, 17, 20}
5 pt
Question 7
Answer:
{8, 24, 72, 216, 648}
Step-by-step explanation:
Geometric sequence:
In a geometric sequence, the quotient of consecutive terms is always the same, that is, each term is the previous term multiplied by the common ratio.
In this question:
First element is 8, common ratio of 3. So
Second term: 8*3 = 24
Third term: 24*3 = 72
Fourth term: 72*3 = 216
Fifth term: 216*3 = 648
So the answer is {8, 24, 72, 216, 648}
The principal is Rs.30,000 the interest rate is 12%. Calculate the total value after 2 year
using compound interest.
Answer:
37632
Step-by-step explanation:
An=A(1+12%)²
A bakery sells cakes, cookies, and pastries. They wonder if customers are equally likely to buy each product. They take a sample of 200 recent purchases and record what was purchased (they are willing to treat this as a random sample). Here are the results
Product Cakes Cookies Pastries
Observed purchases 65 68 67
They want to perform a x^2 goodness-of-fit test to determine if these results suggest that one type of product is more popular than the others. What is the expected count of cake purchases?
Answer:
66.667 cakes
Step-by-step explanation:
The expected count or value in a goodness of fit test is the product of the expected percentage and the total count or sample size.
Since the samples are being treated as a random sample, hence, the expected percentage of each of cake, pastries and cookies is the same.
The expected count of cakes is :
100/3 % * sample size
33.3333% * 200
= 66.667 cakes
PLS HELP!! need the answer asap
Answer:
1.) 113 degrees and 2.) 67 degrees
Step-by-step explanation:
(x + 33) + (x - 13) = 180
Add like terms:
2x + 20 = 180
2x = 160
x = 80
x + 33 =
80 + 33 =
113 =
x - 13 =
80 - 13 =
67 =
A quadrilateral has one pair of parallel sides with lengths 1 3/4 inches and 1 1/4 inches, and two angles that
each measure 36º. What shape is it?
Answer:
trapezoid
it's automatically a trapezoid if it only has one pair of parallel sides that are different lengths and has two acute angels
(15) Find the value of x. *
Answer:
Step-by-step explanation:
x+35=2x(opposite angles of a parallelogram are equal)
35=2x-x
35=x
Activity 1
Instructions: Fill in the table with the missing information.
Experiment
Sample Space
Sample Point
Event
Dutcome
Number of
Possible
Outcome/s
3
Rolling a die
1,2,3,4,5,6
5
2, 4, 6
Getting an
even
number
Getting two
heads
1. Flipping two
coins
HH, HT, TH, TT
2. Choosing a
day in a
week
Choosing a
day that
starts with
letters
Choosing a
month that
ends with
letter R
3. Choosing a
month in a
coin and a
dle together
5. Letter in the
word
PENCIL
6. Numbers
from 1 to 10
P.E.N.C.IL
e,
Getting an
odd number
5
Plss Help Asap
Calculate a positive co-terminal angle for θ=40°
Answer:
400
Step-by-step explanation:
angles that are coterminal with the angle 400? => 4000 and 7600 are two positive coterminal angles.
Three coins are tossed.
What is the probability that
all three will land tails up?
Answer: 1/4
Step-by-step explanation:
write a function rule for the table.
A. f(x)=-2x
B. f(x)=x+2
C. f(x)=x-2
D. f(x)=2x
Type the correct answer in the box. Use numerals instead of words. If necessary, use / for the fraction bar.
A company manufactures CD drives that have a 1.6% chance of experiencing disc-read errors. If a CD drive is tested for 250 read operations, the number of times it may fail is
Answer:
The answer is 4.
Step-by-step explanation:
Multiply 250 with 1.6%. 1.6% is also written as 0.016.
So pretty much you multiply 250 with 0.016 and you get 4.
You randomly select two poker chips from a bag containing 7 poker chips: 4 red, 1 blue, 1 green, and 1 white. Consider the following events:
Event A: You select a green poker chip
Event B: You select a white poker chip.
Determine whether the following statement is True or False: Events A and B are statistically independent.
Answer:
P[You select a green poker chip] = 1/7
P[You select a white poker chip] = 1/7
Step-by-step explanation:
Given:
Number of chips beg contain = 7 chips
Number of red chips = 4 chips
Number of blue chips = 1 chips
Number of green chips = 1 chips
Number of white chips = 1 chips
Find:
Event A: You select a green poker chip
Event B: You select a white poker chip
Computation:
P[You select a green poker chip] = Number of green chips / Number of chips beg contain
P[You select a green poker chip] = 1/7
P[You select a white poker chip] = Number of white chips / Number of chips beg contain
P[You select a white poker chip] = 1/7
Simplify 2x-x+4x pls help me out
Answer:
Step-by-step explanation:
2x-x = x
x+4x = 5x
5x is the answer
Answer:
5x
Step-by-step explanation:
2x - x + 4x =
x + 4x =
5x
63,21,7 write an explicit formula
Answer:
7×3³-n
Step-by-step explanation:
This is a geometric sequence
Use nth term of geometric sequence formula

Ratio is 27/63=1/3
First term is 63

Simplify expression

The mean annual premium for automobile insurance in the United States is $1,499. Being from Pennsylvania, you believe automobile insurance is cheaper there and wish to develop statistical support for your opinion. A sample of 25 automobile insurance policies from the state of Pennsylvania showed a mean annual premium of $1,440 with a standard deviation of s = $150.
a. Develop a hypothesis test that can be used to determine whether the mean annual premium in Pennsylvania is lower than the national mean annual premium.
b. What is a point estimate of the difference between the mean annual premium in Pennsylvania and the national mean (to the nearest dollar)?
Answer:
a) Then, t(s) is in the rejection region. We can not support that the mean annual premium in Pennsylvania is lower than the national mean annual premium
b) The point estimate of the difference is 59 $
Step-by-step explanation:
From sample we get:
sample size n = 25
annual mean x = 1440
standard deviation of the sample s = 150
mean for the mean annual premium μ = 1499
Hypothesis Test:
Null Hypothesis H₀ x = μ
Alternative Hypothesis Hₐ x < μ
Alternative Hypotesis indicates that the test is a one-tail test to the left
Let´s assume confidence Interval 95 % then α = 5 % α = 0.05
As n < 30 and we assume normality we will make a t-student test
degree of freedom df = n - 1 df = 24
With df = 24 and α = 0.05 and from t-student table we get t(c) = - 1.711
To calculate t(s) we apply:
t(s) = ( x - μ ) / s/√n
t(s) = ( 1440 - 1499 ) * 5 / 150
t(s) = - 59/ 30
t(s) = - 1.96
Comparing t(s) and t(c)
|t(s)| > |t(c)|
Then, t(s) is in the rejection region. We can not support that the mean annual premium in Pennsylvania is lower than the national mean annual premium.
b) The point estimate for the difference is : x - μ = 59 $