Answer:
12.599
Step-by-step explanation:
it might not be correct
sorry if not
what is the polygonal base of a rectangular pyramid
Answer:
Square is the base of the rectangular pyramid.
1≥2csvsdvfdsadsfasdfasdfasdfasedfdsa
Answer:
The answer is "False"
Step-by-step explanation:
following are the code to this question:
#include <iostream>//defining header file
using namespace std;
int main() //defining main method
{
if(1>=2)//defining if block to check value
{
cout<<"True";//print message
}
else//else block
{
cout<<"False"; //print message
}
return 0;
}
Output:
false
In this question, a condition is defined, that checks the given condition, which is 1>=2, in this condition and if block is used, when the condition is true, it will print the true message, otherwise, it will go to the else block, in which, it will print the false message.
Use the slope formula to find the slope between the given two points.
(-7,-5) and (2,-8)
Answer: 3/5= 0.6
Step-by-step explanation:
2) f(x) = 27x^6+ 1524x^3+125
Answer:
Step-by-step explanation:
Let x^3 = y
f(x) = 27(x^3)^2 + 1524(x^3) + 125
f(x) = 27 y^2 + 1524y + 125
You can now put this into the quadratic formula. When you do, you get
(y + 0.0821)(y+56.3623) = 0
So now you substitute x^3 into this
(x^3 + 0.0821)(x^3 + 56.3623)
x^3 + 0.0821 = 0
x^3 = - 0.0821
cuberoot x^3 = cube root 0.0821
x = - 0.4346
x^3 = - 56.3623
x = - 3.8341
The population of a particular type of bacteria is known to triple in 22 days. What is the daily growth rate
Answer: ∛(3)
Step-by-step explanation:
Suppose that at day 0 the population was A.
at day 3, the population will be: 3*A
at day 6, the population will be 3*(3*A) = A*3^2
then, at day N = 3*n (where n = 0, 1, 2.....) the population will be:
P(N) = A*3^n
Particularly, if we take n = 1/3 we will have:
N = 3*1/3 = 1
This means that this is the first day after the day 0.
P(1) = A*3^(1/3)
(then in day one, the population grow by a factor of 3^(1/3))
N = 2 is when n = 2/3, then:
P(2) = A*3^(2/3)
The quotient between P(2) and P(1) is equal to the growth between day one and day two, this should be the same as the growth between day zero and day one.
A*3^(2/3)/(A*3^(1/3)) = 3^( 2/3 - 1/3) = 3^(1/3)
So we found that the daily growth rate is 3^(1/3) or ∛(3)
The daily growth rate of the bacteria is an illustration of unit rates
The daily growth rate of the bacteria is 0.136
For 22 days, the population of the bacteria triples.
The daily rate is the amount of bacteria each day.
So, we have:
[tex]\mathbf{Daily = \frac{Rate}{Days}}[/tex]
This gives
[tex]\mathbf{Daily = \frac{3}{22}}[/tex]
Divide
[tex]\mathbf{Daily = 0.136}[/tex]
Hence, the daily growing rate of the bacteria is 0.136
Read more about rates at:
https://brainly.com/question/18065083
Find the sum plz
1 3/5 + 8 1/2
Answer:
10.1
Step-by-step explanation:
Answer:
Step-by-step explanation:
1 3/5 + 8 1/2= change to mixed fraction
8/5+17/2 find common denominator
16/10+85/10=
101/10 or 10 1/10 or 10.1
To convert a quadratic function in standard form to the vertex form of a quadratic function, use a method called?
Answer:
completing the square
Step-by-step explanation:
Find x if h(x) = -7x– 5, given h(x) = -33
Answer:
x=2.6
Step-by-step explanation:
Solve for x if h(x)=-7x-5 given that h(x)=-33
-33=-7x-5
-33+5=-7x
-18=-7x
-18/-7=x
2.6 =x
The group of 25 victims scored an average of 25.3 with a sample standard deviation of 9 on the depression scale. The group of 23 bully-victims scored an average of 20.5 with a sample standard deviation of 8 on the same scale. You do not have any presupposed assumptions about whether victims or bully-victims will be more depressed, so you formulate the null and alternative hypotheses as:
Complete Question
The group of 25 victims scored an average of 25.3 with a sample standard deviation of 9 on the depression scale. The group of 23 bully-victims scored an average of 20.5 with a sample standard deviation of 8 on the same scale. You do not have any presupposed assumptions about whether victims or bully-victims will be more depressed, so you formulate the null and alternative hypotheses as:
[tex]H_o: \ \ \mu_{victims} - \mu_{bully-victims} = 0H1: \ \ \mu _{victims} - \mu_{bully-victims} \ne 0[/tex]
You conduct an independent-measures t test. Given your null and alternative hypotheses,
this is a ________ [ Select ] ["two-tailed", "one-tailed"] test.
The degree of freedom is __________ [ Select ] ["46", "48", "24", "22"]
and for an alpha of .01, the critical t is +/- _________ [ Select ] ["2.704", "2.021", "1.684"]
In order to calculate the t statistic, you first need to calculate the standard error under the assumption that the null hypothesis is true. In order to calculate the standard error, you first need to calculate the pooled variance. The pooled variance is ________ [ Select ] ["72.8696", "145", "0.3756", "71.3201"] .
The standard error is ___________ [ Select ] ["2.4664", "2.5572", "1.9543", "72.8712"] .
The t-statistic is _________ [ Select ] ["1.95", "2.55", "-1.70", "-2.25"]
Answer:
First Question
The correct option is "two-tailed"
Second Question
The correct option is "46"
Third Question
The correct option is "2.704"
Fourth Question
The correct option is "72.8696"
Five Question
The correct option is "2.4664"
Sixth Question
The correct option is "1.95"
Step-by-step explanation:
From the question we are told that
The number of victims is [tex]n_1 = 25[/tex]
The sample mean is [tex]\= x_1 = 25.3[/tex]
The standard deviation is [tex]s_1 = 9[/tex]
The number of bully victims is [tex]n_2 = 23[/tex]
The sample mean is [tex]\= x_2 = 20.5[/tex]
The standard deviation is [tex]s_2 = 8[/tex]
Generally this is a two -tailed test because from the null and the alternative hypothesis we see that the test is know whether the mean number of victims is significantly more depressed than bully -victims or significantly less depressed than bully -victims
Generally the degree of freedom is mathematically represented as
[tex]df = n_1 + n_2 -2[/tex]
=> [tex]df = 25 + 23 -2[/tex]
=> [tex]df = 46[/tex]
Generally from t distribution table the critical value of [tex]\alpha = 0.01[/tex] for a two-tailed test at a degree of freedom of [tex]df = 46[/tex] is
[tex]t_{0.01 , 46} = \pm 2.704[/tex]
Generally the pooled variance is mathematically represented as
[tex]s^2 = \frac{(n_1 - 1) s_1^2 + (n_2 - 1)s_2^2}{df}[/tex]
=> [tex]s^2 = \frac{(25 - 1) 9^2 + (23 - 1)8^2}{46}[/tex]
=> [tex]s^2 = 72.8696[/tex]
Generally the standard error is mathematically represented as
[tex]SE = s \sqrt{\frac{1}{n_1} + \frac{1}{n_2} }[/tex]
[tex]SE = \sqrt{s^2} * \sqrt{\frac{1}{n_1} + \frac{1}{n_2} }[/tex]
=> [tex]SE = \sqrt{72.8696} * \sqrt{\frac{1}{25} + \frac{1}{23} }[/tex]
=> [tex]SE = 2.4664[/tex]
Generally the test statistics is mathematically represented as
[tex]t = \frac{\= x_ 1 - \= x_2}{SE }[/tex]
=> [tex]t = \frac{25.3 - 20.5}{ 2.4664 }[/tex]
=> [tex]t =1.95[/tex]
To test if bully-victims are more depressed, we have that:
The null hypothesis is [tex]H_0: \mu_B - \mu_{NB} = 0[/tex]The alternative hypothesis is: [tex]\mu_M - \mu_{NB} < 0[/tex]For our test, we consider that:
The mean score of bully victims is given by: [tex]\mu_B[/tex].The mean score of non-bully victims is given by: [tex]\mu_{NB}[/tex]At the null hypothesis, we test that they have the same scores, that is:
[tex]H_0: \mu_B = \mu_{NB}[/tex]
Which can also be written as:
[tex]H_0: \mu_B - \mu_{NB} = 0[/tex]
At the alternative hypothesis, we test if the score of bully victims is less than the score of non-bully victims, that is:
[tex]H_1: \mu_B < \mu_{NB}[/tex]
[tex]H_1: \mu_B - \mu_{NB} < 0[/tex]
A similar problem is given at https://brainly.com/question/16252312
2. The graph of f(x) is shown below. Find one value of x for which f(x) = 2.
X=
Answer:
let f(x)=2,
•In this function there is no x therefore it's a constant function represent as y=2 at x=0
• Therefore at f(0)=2 and even at x=2 it will be the same
• at f(2)=2 , coordinate will be (2,2)
•• at f(0)=2 , coordinate will be (0,2)
Step-by-step explanation:
Explain why the exponent in 3.5 x 10 6 is 6 there are only 5 zeros in 3500000
Step-by-step explanation:
The given number is 3.5×10⁶. It is written in scientific form. We can first write it into standard form. There is exponent of 10 is 6.
3.5×10⁶ = 3.5×1000000
We can write 3.5 as 35/10
So,
3.5×10⁶ = (35/10)×1000000
= 3500000
One of the zero of 1000000 is divided by 10 at the denominator. Hence, the exponent in 3.5×10⁶ is 6 while there are 5 zeros in 3500000.
Which situation can NOT be represented by the equation y = 5x
A. Joel has y dollars. This amount is 5 times x, the amount of money his sister has
B. Joel has been playing baseball for x years. This is 5 times y, the number of years his brother has been playing baseball.
C. The value of y is five times the value of x
D. A company uses a total of y gallons of water at a rate of 5 gallons per hour for x hours
Solve the system of equations.
-9 - 6y = 15
9x – 10y = 145
Answer:
-6y=15+9
-6y=21
-6y/-6=21/-6
Y=-21/6
You can spend no more than $100 on a party you are hosting the cost per guest is eight dollars what is the number of the guests
Answer:
its.12.5
Step-by-step explanation:
but if you round it up it can be either 13 or 12 but i would stick with 12 cause you cant round it up for guests since you know real life and if you stay at 12 they hey stay at 12
Answer:
12
Step-by-step explanation:
100÷8=12.5
can't have half of a person
What’s the slope
Please help
Answer:
it's 8/7
Step-by-step explanation:
if you go up 8 and over 7 you get to your next point. remember its rise over run, y/x
Answer:
8/7
Step-by-step explanation:
If you go up 8 and over 7 you get to your next point. remember its rise over run, x/y
1) The original price of the shorts is $35. They are on sale for 25% off. a) What is the discount amount? b) What is the sale price?
Answer:
26.25
Step-by-step explanation:
Answer:
A. $8.75 B. $26.25
Step-by-step explanation:
To figure this out, multiply .25 by 35 to find out what 25% of 35 is. The answer is $8.75, meaning that the shorts are $8.75 cheaper than the original price.
To find the on sale price, subtract $8.75 from $35. The answer is $26.25, meaning that the on sale price is $26.25.
I hope this helps! Have a great day! ☺
Which way shows one way you can decompose 56 to find 56 x 32?
A. O (56 x 3) + (56 x 2)
B. O (56 + 30) + (56 + 2)
C.O (56 x 30) + (56 x 2)
D. (56 + 30) x (56 + 2)
[tex]\huge\underline{\overline{\mid{\bold{\red{ANSWER}}\mid}}}[/tex]
C. [tex] (56 \times 30) + (56 \times 2) [/tex]
[tex] => 56 ( 30 + 2 ) \\ 56 \times 32 [/tex]
Kadence reads 8 pages in her book every 30 minutes. How many pages will she read in 6 hours?
Answer:
1350.ans
Step-by-step explanation:
please give me marks
If RE = 4x + 7, ET = 2(3x - 4), and RT = 43, then find the value for ET.
None of the other answers are correct
18.4
24.6
4.4
44
Answer:
B
Step-by-step explanation:
RT is the combined segments RE and ET. So:
[tex]RT=RE+ET[/tex]
We know that RT is 43, RE is (4x+7) and ET is 2(3x-4). Substitute:
[tex]43=(4x+7)+2(3x-4)[/tex]
Solve for x. Distribute the right:
[tex]43=4x+7+6x-8[/tex]
Combine like terms:
[tex]43=10x-1[/tex]
Add 1 to both sides:
[tex]10x=44[/tex]
Divide both sides by 10:
[tex]x=4.4[/tex]
So, the value of x is 4.4.
ET is defined as 2(3x-4).
We can find ET by substituting 4.4 for x. So:
[tex]ET=2(3(4.4)-4)=2(13.2-4)=2(9.2)=18.4[/tex]
Hence, our answer is B.
Complete the sentence.
9 is 18% of
Answer:
9 is 18 percent of 50
Step-by-step explanation:
9 = 18% x Y
9 = 18
100 x Y
Y = 3 x 100 /18
Y = 50%
Mya is doing a 45-minute cardio workout. She has completed 4/5 of the workout. In how many minutes will her workout be done?
Answer:
9 minutes
Step-by-step explanation:
We can start by dividing 45 by 5, the denominator which is
9
then we can multiply that by the numerator 4, which is
36
finally, we subtract 36 from 45 which is
9
The formula for the sum of an infinite geometric series, S-7-r, may be used to convert o 23 to a fraction. What are
the values of a, and ?
23
10
10
o aq - 23, r-100
23
a-
100
- 100
23
100
1
100
I believe the number to be converted to a fraction is 0.232323..., this is 0.23 periodic.
The formula is right:
Where is 0.23 and r is 1/100
Check it here:
23/100 23/100 23
-------------- = ----------- = ------- = 0.232323...
1 - 1/100 99/100 99
So, the answer is 23/100 and r = 1/100
Find the area of the triangle.
Pls help ASAP!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! pls
You purchase 6 bunches of scallions. Each bunch weighs 6 ounces. The trim loss percent is 19%. After cleaning the scallions you have 29.5 ounces of cleaned scallions. What is the yield percent for scallions?
Answer:
Step-by-step explanation:
If the price od 1 scallions weight 6ounces, 6 bunches of scallion wwill weight 6(6) i.e 36 ounces.
Cost price = 36 ounces.
%Loss = 19%
Get the selling price
%Loss = 36-Sp/36 * 100
19 = 36-Sp/36 * 100
0.19 = 36-Sp/36
0.19 * 36 = 36-Sp
7.41 = 36-Sp
Sp = 7.41 + 36
Sp = 43.41 ounces
If after cleaning you have 29.5 ounces of cleaned scallions, then then;
% gain = 43.41-29.5/29.5 * 100
%gain = 13.91/29.5 * 100
%gain = 47.2%
Hence the yield percent id 47.2%
4x+2y=6 please solve for y
Answer:
y=3-2x
Step-by-step explanation:
Move all terms that don't contain y to the right and solve.
there are three cats so there are 3 cats so 12 paws and 3 tails
Porque cada gato tiene 4 patas y una cola y si se multiplica por tres se da esa cifra.
which of the following is thw missing reason?
Answer:
Step-by-step explanation:
option 4
Notice that 3 is multiplied on both sides on of the equation to get
5x+6 = -9
Answer:
The correct answer is D, "Multiplication Property of Equality"
Step-by-step explanation:
This is because in the original equation it shows, 5/3x + 2 = -3, then you multiply by 3 to get rid of the 5/3, and on the other side you get -9.
No one answer this I just wanna say hiiii
Answer:
hi
Step-by-step explanation:
hi
If a star is measured to have a parallax angle of 0.5 arcsec, how far away is the star?
a. 2 ly
b. 2 pc
c. 0.5 pc
the formula is d=1/p
(astronomy)