Answer:
The answer is b.Look below for details.
Step-by-step explanation:
Question no 1. The sequence has the common difference of 14.
t1=7
t2=21
t3=35
We have
tn=a+(n-1)d
=7+(n-1)14
=7+14n-14
=14n-7(Its not our answer)
Lets try b.
The common difference is 2 in this sequence.
t1=7
t2=9
t3=11
t4=13
We have
tn=7+(n-1)2
=7+2n-2
=2n+5(Its is our answer.) Got it.
13 and 14
Please help ASAP
Extra 100 points
Answer:
(3)
(4)
Step-by-step explanation:
but I could be wrong
Billy spent 8 days collecting cans and he managed to collect 7 pounds. He collected ____ of a pound each day. In fractions
Answer:
7/8 pounds
Step-by-step explanation:
pounds collected in a day = number of pounds collected in 8 days / number of days
7/8
2(4a - 4b) + 4(3a + 2b)
plz solve this!!!
Answer:
2(4a - 4b) + 4(3a + 2b) = 20a
Step-by-step explanation:
2(4a - 4b) + 4(3a + 2b)
8a - 8b + 12a + 8b
8a + 12b - 8b + 8b
20a+ 0 = 20a
Thus, 2(4a - 4b) + 4(3a + 2b) = 20a
-TheUnknownScientist
Please help!!!
If data set A has a larger standard deviation than data set B, data set B is
more spread out thar data set A.
O A. True
O B. False
Answer:
the answer is B.FALSE
Step-by-step explanation:
hope it helps
If A= (-4 1 -4) (3 3 1) (2 5 5) and B= (-4 -5 4) (3 3 -5) (2 2 -1), find AB
Answer:
[tex]\left[\begin{array}{ccc}11&15&-17\\-1&-4&-4\\17&15&-22\end{array}\right][/tex]
Option D will be your answer
[tex]-----------[/tex]
hope it helps...
have a great day!!
in an exam 90% students passed if the 15 student fail find the number of students appeared in the examination
Answer:
150
Step-by-step explanation:
15 fail
90 percent pass
15=10 percent
135=90 percent
150
Step-by-step explanation:
90%passed
100%-90%=10% failed
10%=15 students
100%=x students
USE CROSS METHOD10x=1500
x=1500/10
x=150 number of students appeared in the exam.
5. 3(x - 1) = 23 – 5(x + 2)
Answer:
x = 2
Step-by-step explanation:
3(x - 1) = 23 - 5(x + 2) ← distribute parenthesis on both sides
3x - 3 = 23 - 5x - 10
3x - 3 = 13 - 5x ( add 5x to both sides )
8x - 3 = 13 ( add 3 to both sides )
8x = 16 ( divide both sides by 8 )
x = 2
Answer:
x=2
Step-by-step explanation:
What two words will fill in the blanks correctly?Single choice.
(1 Point)
In similar figures, the ratio of the lengths of their corresponding sides are ____________ and corresponding angles are ____________.
equal and congruent
similar and similar
similar and congruent
here's the answer :
=》
In similar figures, the ratio of the lengths of their corresponding sides are equal and corresponding angles are congruent.
hence, A. equal and congruent is correct.
Answer:
equal and congruent
Step-by-step explanation:
equal and congruent
Find the value of x and y that will make each quadrilateral a parallelogram.
Answer:
this question is a bit confusing.
Step-by-step explanation:
here's what I think is the answer
9x-6=6x+9
3x=15
x=5
aurav went to school for 216 days in a full year. If his attendance is 90%, find the number of days on
which the school was open.
Answer:
The school was open for 240 days
Step-by-step explanation:
216 / x = 90%/100%
216*100= 21,600
21,600/90 = 240
Solve using the quadratic formula: 2x^2=8x-7. There are four parts to this question labeled A-D.
Nadia and her friend are hiking in the woods. The table shows how far they traveled during the day.
Distance
Time
Traveled
(hours)
(meters)
2
4,000
4
8,000
6
12.000
00
16,000
10
20,000
What is the unit rate, in meters per hour, that Nadia and her friend hiked?
O A. 500 meters per hour
OB. 1000 meters per hour
OC. 2000 meters per hour
D. 4000 meters per hour
Answer:
c. 2000 meters per hour
The original price of a shirt is $16.00. The price of the shirt is discounted by 20%, then a 4% sales tax is added. What is the final price of the shirt after the discount is taken off and sales tax added?
Answer:
$13.31
Step-by-step explanation:
blehn b;eoj
Answer:
$13.31
Step-by-step explanation:
First, take the original price and apply the discount of 20% by converting the percentage into a decimal (0.2)
16 x 0.2
= 3.2
Next, take away that amount from the original price
16 - 3.2
= 12.8
Now calculate the tax with the new price by converting the percentage into a decimal (0.04)
12.8 x 0.04
= 0.512
Finally, add the tax to the new amount
12.8 + 0.512
= 13.312
Round if necessary.
The sodium content of a popular sports drink is listed as 220 mg in a 32-oz bottle. Analysis of 10 bottles indicates a sample mean of 228.2 mg with a sample standard deviation of 18.2 mg. (a) State the hypotheses for a two-tailed test of the claimed sodium content. a. H0: μ ≥ 220 vs. H1: μ < 220 b. H0: μ ≤ 220 vs. H1: μ > 220 c. H0: μ = 220 vs. H1: μ ≠ 220 a b c (b) Calculate the t test statistic to test the manufacturer’s claim. (Round your answer to 4 decimal places.) Test statistic (c) At the 5 percent level of significance (α = .05), does the sample contradict the manufacturer’s claim? H0. The sample the manufacturer’s claim. (d-1) Use Excel to find the p-value and compare it to the level of significance. (Round your answer to 4 decimal places.) The p-value is . It is than the significance level of 0.05. (d-2) Did you come to the same conclusion as you did in part (c)? Yes No
Answer:
Follows are the responses to this question:
Step-by-step explanation:
[tex]H_O: \mu=220\\\\H_a:\mu \neq 220\\\\[/tex]
0.05 degree of significance for two tail tests and n-1= 9 df, critica t= 2.262
When the absolute value of the test statistic |t| >2.262, the decision rule rejects[tex]H_0[/tex].
[tex]\mu=220\\\bar{x}=228.200\\n=10.00\\smaple \ std \ deviation = 18.200\\std\ error \ ' sx= \frac{s}{\sqrt{n}} =5.7553\\test stat t=\frac{(x-\mu) \times \sqrt{n}}{sx}=1.4248\\p value=0.1880\\[/tex]
In point c:
It does not reject[tex]H_0[/tex], because it has the sample that not contradicts the manufacturer's claim
In point d:
For point 1:
The value of p is 0.1880 , that is higher than the 0.05
For point 2:
Yes
HELP I NEED HELP ASAP HELP I NEED HELP ASAP HELP I NEED HELP ASAP HELP I NEED HELP ASAP
HELP I NEED HELP ASAP HELP I NEED HELP ASAP HELP I NEED HELP ASAP HELP I NEED HELP ASAP
Answer:
C. his conclusion represent correlation and causation
Andy’s goal for the week is to run 19 miles. he ran 6.19 miles between monday and friday. he ran 3.1 miles on saturday. how many more miles should he run on sunday to meet his goal?
Answer:
9.71 miles
Step-by-step explanation:
total miles he ran = 6.19 + 3.1 = 9.29
Target = 19 miles
Goal for sunday = 19 - 9.29 = 9.71
first to answer correclty gets braineleist ! i rlly need help pls.
Answer:
Its C
Step-by-step explanation:
The point-slope form of a line that has a slope of –2 and passes through point (5, –2) is shown below.
y + 2 = negative 2 (x minus 5)
What is the equation in slope-intercept form?
Answer:
y= -2x+8
good luck on your assignment
Please look at the screenshot
Answer:
ED= 38º EA= 144º BDC= 308º
Step-by-step explanation:
The area of a rectangular fountain is x2 + 12x + 20 square feet. A 5-foot walkway is built around the
fountain. Find the dimensions of the outside border of the walkway.
Answer:
x + 7 ft and x + 15 ft as the dimensions of the outside border of the walkway.
Step-by-step explanation:
[tex]x^{2} +12x + 20 = (x + 2)(x + 10)[/tex]
The dimensions of the fountain is x + 2 and x + 10
Adding the 5-ft walkway, we get x + 7 ft and x + 15 ft as the dimensions of the outside border of the walkway.
a car drives 195 miles in 3 hours 15 minutes what is the average speed of the car ?
30 hours of vdvdkdjdbdvdkdjevjexhsjshdhevdkddjdjddhdhdbd jdmdjdhdbdjdissksjdjddhdkfjhfdjhddkhddhhdbd bb gun
Step-by-step explanation:
e kuan na dayun
PLEASE HELP I DONT KNOW HOW TO SOLVE THIS :((
Answer:
[tex]\displaystyle \angle A=30^\circ[/tex]
Step-by-step explanation:
We are given that in Circle O, Arc BAC measures 300°.
Recall that arc lengths will always total 360°. Therefore:
[tex]\stackrel{\frown}{BAC}+\stackrel{\frown}{CB}=360^\circ[/tex]
By substitution:
[tex]300+\stackrel{\frown}{CB}=360[/tex]
Thus:
[tex]\stackrel{\frown}{CB}=60^\circ[/tex]
∠A intercepts Arc CB. Since it is an inscribed angle, it will be half of its intercepted arc. In other words:
[tex]\angle A=\displaystyle \frac{1}{2}\stackrel{\frown}{CB}[/tex]
Therefore:
[tex]\displaystyle \angle A=\frac{1}{2}(60)=30^\circ[/tex]
At a football stadium, 10% of the fans in attendance were teenagers. If there were 100 teenagers at the football stadium, what was the total number of people at the stadium?
Answer:
The answer is 1000.
*Explanation*
Attendance at the football stadium is 100%
100% - 10% = 90%
10% = 100 attendance
900% = 900 attendance
900 + 100 = 1000 attendance
HELP ME PLEASE! THE ATTACHMENT HAS THE INFO.
THANK YOU!
Answer:
The answer is B
Step-by-step explanation: yo mum u dont need one
Answer:
Your answer is b
Step-by-step explanation:
Step-by-step explanation: None
I had $370 my mother gave me $150 my father gave me $150 my aunt and uncle gave me $ 100 and I had another $30. How much did I have?
Answer:
370+150+150+100+30=800
Step-by-step explanation:
Please find the answer , it is a very importatnt question
Step-by-step explanation:
The given expression is :
[tex]\dfrac{2-\sqrt5}{2+3\sqrt5}=\sqrt5 x+y[/tex] ....(1)
Taking LHS of the above expression
[tex]\dfrac{2-\sqrt5}{2+3\sqrt5}[/tex]
Rationalizing both denominator and numerator.
[tex]\dfrac{2-\sqrt5}{2+3\sqrt5}\times \dfrac{2-3\sqrt5}{2-3\sqrt5}=\dfrac{4-6\sqrt5-2\sqrt5+15}{2^2-(3\sqrt5)^2}\\\\=\dfrac{19-8\sqrt5}{4-45}\\\\=\dfrac{19-8\sqrt5}{-41}\\\\=\dfrac{\sqrt5 \times 8}{41}+(\dfrac{-19}{41})[/tex]
Equation (1) becomes,
[tex]\dfrac{\sqrt5 \times 8}{41}+(\dfrac{-19}{41})=\sqrt 5\ x+y[/tex]
Equating both sides,
[tex]x=\dfrac{8}{41}[/tex] and [tex]y=\dfrac{-19}{41}[/tex]
Hence, this is the required solution.
Help please will give you points
Answer:
16
Step-by-step explanation:
From the question given above, the following data were obtained:
Sum of N term (Sₙ) = 292
2nd term (T₂) = 8.5
5th term (T₅) = 13
Number of terms (N) =?
Next, we shall determine the first term (a) and the common difference (d) of the series. This can be obtained as follow:
T₂ = a + d
8.5 = a + d ........ 1
T₅ = a + 4d
13 = a + 4d ........ 2
Subtract equation 1 from equation 2 i.e
(2) – (1)
.. 13 = a + 4d
– 8.5 = a + d
¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯
4.5 = 3d
Divide both side by 3
d = 4.5 / 3
d = 1.5
Substitute the value of d into any of the equation to obtain the value of a. Here, we shall use equation 1.
8.5 = a + d
d = 1.5
8.5 = a + 1.5
Collect like terms
8.5 – 1.5 = a
a = 7
Finally, we shall determine the number of terms as follow:
Sum of N term (Sₙ) = 292
Common difference (d) = 1.5
First term (a) = 7
Number of terms (N) =?
Sₙ = n/2[2a + (n – 1)d]
292 × 2 = n[(2 × 7) + (n – 1)1.5]
584 = n[14 + 1.5n – 1.5]
584 = n[12.5 + 1.5n]
584 = 12.5n + 1.5n²
Rearrange
1.5n² + 12.5n – 584 = 0
Using formula method, the value of n can be obtained as follow:
a = 1.5
b = 12.5
c = –584
n = –b ± √(b² – 4ac) / 2a
n = –12.5 ± √(12.5² – 4 × 1.5 × –584) / 2 × 1.5
n = –12.5 ± √(156.25 + 3504) / 3
n = –12.5 ± √(3660.25) / 3
n = –12.5 ± 60.5 / 3
n = –12.5 + 60.5 / 3 or –12.5 – 60.5 / 3
n = 4 /3 or –73 / 3
n = 16 or –73 / 3
Since the number of terms can not be negative, therefore, the number of term is 16
On Tuesday, Hayley only has 15 cups of flour and 9 eggs, but she has more than enough butter and
sugar Which system of linear inequalities can Hayley use to model this situation where b represents the
number of loaves of banana bread and represents the number of loaves of zucchini bread?
A /3b + 15
26 +2 9
OB 56 +32 15
3b +59
CS 3b +2:15
16 +2:59
D
26 + 2: 15
| 3b +5359
Answer:
Step-by-step explanation:
On Tuesday, Hayley only has 15 cups of flour and 9 eggs, but she has more than enough butter and
sugar Which system of linear inequalities can Hayley use to model this situation where b represents the
number of loaves of banana bread and represents the number of loaves of zucchini bread?
Due tonight.. *no links*
Answer:
49°
Step-by-step explanation:
106 + 135 + 70 + x = 360
311 + x = 360
x = 49°
Could someone please help me urgently ty!
Answer:
m<PRQ=15°
Step-by-step explanation:
so we're given that PQ and RQ are sides of a regular 12-sided polygon (dodecagon)
a regular polygon is a polygon that has all angles be the same measure AND have all sides be the same length
because of that, PQ=RQ, and ΔPQR is isoceles
now we need to find what the question is asking for: m<PRQ
because of base-angles theorem, m<PRQ=m<RPQ
we need to find m<PQR
a dodecagon is 1800° in measure
and we need 1/12th of that measure, since <PQR is 1 out of the 12 interior angles on the dodecagon (a dodecagon has 12 vertecies, so 12 angles). Also because the polygon is regular, every interior angle has the same measure.
so find the measure of <PQR
<PQR= 1/12*1800=150°
now to find the measure of <PRQ:
there are 180° in a triangle
so subtract 150° from 180°
180°-150°=30°
30° is the sum of the base angles (<PRQ is one of the base angles in a triangle)
the base angles are the same measure, so that means the measure of <PRQ is 1/2 the measure of the sum of the base angles
therefore m<PRQ=15°
hope this helps!