Answer:
5 and 1/2
Step-by-step explanation:
Which of the following represents an inequality statement with a solution of
Please help out I’ll give you brainliest
Answer:
the second to last one
Step-by-step explanation:
Sorry if it is incorrect!
A 20 ft tall ladder standing next to a statue casts a 12 ft shadow. If the statue casts a shadow that is 9 ft long then how tall is it?
Given that,
Length of the ladder = 20 ft
It casts a 12 ft shadow
To find,
If the statue casts a shadow that is 9 ft long then how tall is it?
Solution,
Let the ladder be x ft tall.
20 ft tall ladder = 12 ft shadow
9 ft tall ladder =
[tex]\dfrac{20}{12}\times 9\\\\=15\ ft[/tex]
Hence, the required length is 15 ft.
The graph of function g is a parabola with the vertex located at (5,9). The parabola also passes through the point (3, 1). Which of the following is an
equation in vertex form for this function?
I just did this the answer is C. g(x) = –2(x – 5)2 + 9
The required function is [tex]g(x)=-2(x-5)^2+9[/tex].
Important information:
Vertex of parabola is at (5,9).Parabola passes through the point (3,1).We need to find the equation in vertex form for the function g.
Parabola:The vertex form of a parabola is:
[tex]g(x)=a(x-h)^2+k[/tex] ...(i)
Where, [tex]a[/tex] is a constant and [tex](h,k)[/tex] is the vertex.
Substitute [tex]h=5,k=9[/tex] in (i).
[tex]g(x)=a(x-5)^2+9[/tex] ...(ii)
Parabola passes through the point (3,1). So, substitute [tex]x=3,g(x)=1[/tex] in (ii).
[tex]1=a(3-5)^2+9[/tex]
[tex]1-9=a(-2)^2[/tex]
[tex]-8=4a[/tex]
[tex]-2=a[/tex]
Substitute [tex]a=-2[/tex] in (ii).
[tex]g(x)=-2(x-5)^2+9[/tex]
Thus, the required function is [tex]g(x)=-2(x-5)^2+9[/tex].
Find out more about 'parabola' here:
https://brainly.com/question/15165354
1
What is the y-intercept of a line that has a slope of 4 and passes through point (8, 3)?
3
Ο Ο Ο Ο
11
Answer:
The slope-intercept form: y = mx + b
m - a slope
b - y-intercept
We have a slope m = 1/4. Substitute: y = 1/4 x + b
We know, the line passes through point (8, 3) → x = 8, y = 3.
Put the values of x and y to the equation of the line:
1/4 · 8 + b = 3
2 + b = 3 |-2
b = 1
Answer: y-intercept is (0, 1)
Step-by-step explanation:
What is the equation of the line that has a slope of -3 and passes through the point (-2, 4)?
O y = -3x - 2
y=-3x
ООО
y=-3x - 4
y = -3x + 4
O y=-3x + 2
The heights of dogs, in inches, in a city are normally distributed with a population standard deviation of 7 inches and an unknown population mean. If a random sample of 20 dogs is taken and results in a sample mean of 21 inches, find a 95% confidence interval for the population mean. z0.10z0.10 z0.05z0.05 z0.025z0.025 z0.01z0.01 z0.005z0.005 1.282 1.645 1.960 2.326 2.576 You may use a calculator or the common z values above. Round the final answer to two decimal places.
Answer:
The 95% confidence interval is [tex] 17.932 < \mu < 20 + 22.068[/tex]
Step-by-step explanation:
From the question we are told that
The population standard deviation is [tex]\sigma =7 \ inches[/tex]
The sample size is n = 20
The sample mean is [tex]\= x = 20[/tex]
From the question we are told the confidence level is 95% , hence the level of significance is
[tex]\alpha = (100 - 95 ) \%[/tex]
=> [tex]\alpha = 0.05[/tex]
Generally from the normal distribution table the critical value of [tex]\frac{\alpha }{2}[/tex] is
[tex]Z_{\frac{\alpha }{2} } = 1.96[/tex]
Generally the margin of error is mathematically represented as
[tex]E = Z_{\frac{\alpha }{2} } * \frac{\sigma }{\sqrt{n} }[/tex]
=> [tex]E = 1.96 * \frac{7 }{\sqrt{20} }[/tex]
=> [tex]E = 2.068[/tex]
Generally 95% confidence interval is mathematically represented as
[tex]\= x -E < \mu < \=x +E[/tex]
=> [tex] 20 - 2.068 < \mu < 20 + 2.068[/tex]
=> [tex] 17.932 < \mu < 20 + 22.068[/tex]
Amy has an adjusted gross income of $85,600. For the house she is considering buying, her monthly mortgage payment would be $1,711.22, her semi-annual property tax bill would be $3,239, and her annual homeowner’s insurance bill would be $980. She has a credit card bill that averages $500 per month and a $475 car payment. What is her back-end ratio?
Answer:
85,600:6,905.22
Step-by-step explanation:
Jessica can do 60 jumping-jacks in 2 minutes. Which of the following is an equivalent rate
Find the value of this expression if x = 5 and x=2
xy^2 / -3
Answer:
-20/3
Step-by-step explanation:
here x=5 and y=2 then put the value and get answer.
In order to estimate the statistical difference between the average hourly wages of employees of two branches of a department store, two independent random samples were selected and the following statistics were calculated. Downtown Store North Mall Store Sample size 25 20 Sample mean $9 $8 Sample standard deviation $2 $1 A 95% interval estimate for the difference between the two population means is _____. Group of answer choices
Answer:
0.076 ; 1.924
Step-by-step explanation:
Given that :
_______Downtown Store ___ North Mall Store
n _______25 _______________20
Mean (m) _ $9 _______________$8
Sample sd_ $2 ______________$1
Standard Error (SE) = √[(s1²/n1) + (s2²/n2)]
√((2^2/25) + (1^2/20)) = 0.4582575
df = (25 + 20) - 2= 43
(m2 - m1) ± t(df = 43 , 0.025) * SE
(9 - 8) ± 2.01669 * 0.4583
(1 - 0.9242) ; (1 + 0.9242)
0.076 ; 1.924
Which of the following is a proper fraction?
a. 3
4 b. 4
3
c. 4
13 d. 5
Complete question is;
Which of the following is a proper fraction?
a. 3/4
b. 4/3
c. 4¾
d. 3¼
Answer:
a. ¾
Step-by-step explanation:
Proper fraction is one in which the numerator is less than the denominator while improper fraction is one whereby the numerator is greater than the denominator.
From this definition, the one that is proper fraction is only ¾.
Answer:
jllfdlkdjklfsdkldsjlkdsj
Step-by-step explanation:
this is payback
Solve the expression. 0.02 × 0.3
A. 0.6
B. 0.06
C. 0.006
plis help
Find the distance from the origin to the graph of 6x+3y+2=0
a.
0.33
b.
0.31
c.
0.3
d.
0.32
Answer:
Step-by-step explanation:
B is the answer
help me pls
The sum of Sally and Beth's age is 60. Six years ago, Sally was 3 times as old as Beth. What are their present ages?
Ans
b-18 s-42
Step-by-step explanation:
A rectangular field is 348 inches long and 7 yards wide
ill take a guess on what the actual question is..
area: 2,436
perimeter: 710
Answer:
um i think it's cheese
Step-by-step explanation:
Because i like cheese
Just do q1-4 and hurry...... he’s coming for me!
1.order of operations
2.12 or variable
3.error
4.Line(12¨
hope this helps
plz consider marking brainliest
Evaluate 32 divided by 1.6
show work
Answer:
20
Step-by-step explanation:
32/1.6= 20
How do you want me to show the work? Long division?
Answer:
20
Step-by-step explanation:
Idk how you want me to show the work, sorry. The formatting will be weird unless I attach a pic or something
ANGLE KLM and ANGLE RST are supplementary angles. If ANGLE KLM is (7x) and ANGLE RST is (36-x) what is the value of x ? Please hurry, this is my final
19
18
30
24
Answer:
30
Step-by-step explanation:
Angle B measures 60°. What is the measure of the angle that is complementary to angle B?
30°
60°
120180°
copy and complete: 7:8:9=x:12:x
Answer:
kjldsjlkgjvdlskvjlxzk
Step-by-step explanation:
for a new neighbor, 100 acres of land will be split into 10 lots. How many acres will each lot have?
Answer:
Your answer is 10 cause 100 divided by 10 is 10
Step-by-step explanation:
I need help you'll get fourteen points plz fast
ASAP
Answer:
I think the right answer is c I'm sorry if you get it wrong
Answer:
pretty sure it's B
Step-by-step explanation:
sorry if wrong it was hard to read the picture it was very blurry
Aaron made a $400 purchase using his credit card. The credit card has a simple interest rate of 12% each year. How much will Aaron owe in total at the end of the year?
Answer: 448 dollars
=============================================
Work Shown:
P = 400 is the balance
r = 0.12 is the decimal form of the interest rate
t = 1 is the number of years
Use those values to get the simple interest to be
i = P*r*t
i = 400*0.12*1
i = 48
The amount of interest charged is $48
Add this onto the balance of 400 dollars and the total amount Aaron owes is P+i = 400+48 = 448 dollars.
452356273567187+646735264273852927×648463768÷636478476804387098-3×768370678679868687675785+34579256289574678556+87673976-7568975268565786578467858485647694587897436754675686587897558785578576×830463809745
Answer:
-6.28576e+81
Step-by-step explanation:
PLEASE ANSWR I WILL GIVE 50 POINTS!!!!!
Which expression is equivalent to (1/ sqrt of y) ^-1/5 ?
Step-by-step explanation:
sqrty = y^(0.5)
1 / sqrty = y^(-0.5).
-1/5 = -0.2.
Therefore we have (1 / sqrty)^(-1/5)
= [y^(-0.5)]^(-0.2)
= y^[(-0.5)(-0.2)] (Law of indices)
= y^0.1
= 10th square root of y. (2nd option)
Answer:
1/sqrt 10th y
Step-by-step explanation:
1/(sqrt9)
19/76sprt
a bottle of eye drops has 0.45 fluid ounces of liquid how much liquid is in ten Forths bottles of eye drop.
plz help!! will give brainliest!
Answer:
C) 13
Step-by-step explanation:
Ok so
8√3
What is the value of 3x^2+4x+12 when x=-2
Answer:
16
Step-by-step explanation:
3 x -2^2 + 4 x -2 + 12
first do exponents -2 x -2 = 4
3 x 4 + 4 x -2 + 12
Next do multiplication or division from left to right
12 - 8 + 12
now do subtraction or addition from left to right
4 + 12
16
How long is a guy wire reaching from the top of a 21ft. Pole to a point on the ground 15ft. From the pole
Answer:
26ft
Step-by-step explanation:
This would form a triangle so you would use Pythagorean theorem to find the hypotenuse ( the longest side )
Set up an equation that relates the direct variation. D varies directly with t
Answer:
I really don’t understand the question.. sorry I couldn’t help...
Which of the numbers shown in the box below is the largest? 19/3, 31/5, 13/2, 25/4 pls help urgent
Answer: i think they are all the exact same 6 with a remainder of 1
Step-by-step explanation: