Answers
Answer:
4*y+2*y
Step-by-step explanation:
Related Questions
Twice a number plus another number is 15. The sum of the numbers
alone is 11. Find the numbers.
Answers
Answer:
2x + 3 = 15
x = 6
2(6) + 3 = 15
Step-by-step explanation:
This is the answer because:
1) 2 x 6 = 12, 12 + 3 = 15
2) 2 + 6 + 3 = 11
Therefore, the answer is 2(6) + 3 = 15
Hope this helps!
Answer:
x=6
Step-by-step explanation:
2x+3=15
15-3=12
12/2=6
x=6
Factor.
8x^9−27y^15
Enter your answer in the box.
Answers
Answer:
f
Step-by-step explanation:
f
Answer: a=2x 3 b=3y 5 (2x 3 -3y 5) (4x 6 +6x 3 y5 +9y 10)
Step-by-step explanation:
-2|10 + 5x|-8=-16
How do I solve?
Answers
Answer:
so the answer is
x = -6/5, - 14/ 5
Step-by-step explanation:
i hope this is what your looking for
Answer:
5/6 and -26/5
Step-by-step explanation:
-16 divide -2 = 8
Add 8 = 16
Remove absolute value
Positive 16 - 10 = 6
Divide 5 = 6/5
Negative -16 - 10 = -26
Divide 5 = -26/5
1.If x and y vary directly and y = 16 when x = 12, then which of the following equations correctly represents the relationship between x and y?
Answers
Answer:
[tex]y = \frac{4}{3}x[/tex]
Step-by-step explanation:
Given:
Variation: Direct Variation.
This can be represented as:
[tex]y\ \alpha\ x[/tex]
[tex]y = 16; x = 12[/tex]
Required
Write out the equation
First, the variation has to be converted to an equation
[tex]y\ \alpha\ x[/tex]
[tex]y = kx[/tex]
Where k represents constant of variation.
Substitute 16 for y and 12 for x
[tex]16 = k * 12[/tex]
Solve for k
[tex]k = \frac{16}{12}[/tex]
[tex]k = \frac{4}{3}[/tex]
To get the equation, we simply substitute 4/3 for k in [tex]y = kx[/tex]
[tex]y = \frac{4}{3}x[/tex]
A little confused by this question. Does anyone know how to do this?
Thank you !
Answers
Answer:
[tex]if \: {i}^{k} = 1. \: \iff\:then \: k = 0 .\\ if \: {i}^{k} = i. \: \iff\: then \: k = 1. \\ if \: {i}^{k} = - 1. \: \iff\: then \: k = 0 \: and \:i = - 1 . \\ if \: {i}^{k} = - i. \: \iff \:then \: k = 1 \: and \: i = - i.[/tex]
Step-by-step explanation:
♨Rage♨
Sydney drove 117 miles in 3 hours. If she continued at the same rate, how far would she travel in 19 hours?i
Answers
Answer:
741 miles in 19 hours
Step-by-step explanation:
In a test with a mean of 100 and a standard deviation of 10, what is the standard deviation for a test score of 120
Answers
This question is incomplete
Complete Question
In a test with a mean of 100 and a standard deviation of 10, what is the standard score for a test score of 120?
Answer:
The standard score = 2
Step-by-step explanation:
The formula for Test (T) score is given as:
T score = zσ + μ
z = Standard or z score = ??
Standard deviation (σ) = 10
Mean (μ) = 100
Test score = 120
120 = 10z + 100
120 - 100 = 10z
20 = 10z
z = 20/10
z= 2
Therefore, the standard score = 2
You must be in degree mode to find sin pie/3
A.) True
B.) False
Answers
Answer:
(i) False. Let A = 30° and B = 60°, then sin (A + B) = sin (30° + 60°) = sin 90° = 1 and, sin A + sin B = sin 30° + sin 60° = 1/2 + √3/2 = 1+√3/2(ii) True. sin 0° = 0 sin 30° = 1/2 sin 45° = 1/√2 sin 60° = √3/2 sin 90° = 1 Thus the value of sin θ increases as θ increases.(iii) False. cos 0° = 1 cos 30° = √3/2 cos 45° = 1/√2 cos 60° = 1/2 cos 90° = 0 Thus the value of cos θ decreases as θ increases.(iv) True. cot A = cos A/sin A cot 0° = cos 0°/sin 0° = 1/0 = undefined.
Step-by-step explanation:
Khloe drove 204 miles in 4Hours
Answers
Answer:
She was driving 51 miles per hour.
Step-by-step explanation:
51 x 4 = 204
204 / 4 = 51
A grid model with 100 squares. 73 squares are shaded.
What percent of the model is shaded? |_____|
What is the equivalent ratio? |____|
What is the equivalent decimal? |____|
What is the equivalent fraction? |____|
Answers
Answer:
Step-by-step explanation:
73% is shaded
Equivalent ratio 73/100 times 2
146/200 is the ratio
0.73 is the decimal
73/100 is the fraction
Answer:
73%
Step-by-step explanation:
Divide 3/5÷4 please help ASAP please
Answers
Answer: The answer is 2.4
Step-by-step explanation:Hope this helps
Can someone please help me? I've been trying to figure this out for days. I don't understand how to construct a confidence interval.
I know that the red box has a mean value of 15.11 and the blue box's mean is 16.83. The difference of sample means is 1.74. The red standard deviation is 3.868 and the blue one is 2.933. the standard deviation of the sample mean differences is 0.69. How do I use all this to construct the interval with no difference between the population means.
Answers
Step-by-step explanation:
Confidence interval is:
CI = x ± CV · SE
where x is the mean, CV is the critical value, and SE is the standard error.
There is no difference between the population means, so x = 0.
The confidence level is 95%, so CV = 1.96.
SE = 0.69.
So the confidence interval is:
CI = 0 ± (1.96) (0.69)
CI = (-1.35, 1.35)
1.74 is outside of the confidence interval, so it is statistically significant.
Answer:
Step-by-step explanation:
same i need help
Evaluate the expression -7(-3)(-1)
Answers
Answer:
− 21
Step-by-step explanation:
-7(-3)(-1)
21(-1)
-21
Fine the area of this figure round your answer to the nearest hundredth use 3.14 to approximate
Answers
This value is approximate because we used the approximation pi = 3.14
=================================================
Explanation:
For problems like this, a common approach is to break the figure into smaller pieces. Find the area of each small piece, then add up those individual areas to get the full area we're after.
------------
A = area of triangle
A = 0.5*base*height
A = 0.5*6*8
A = 24 square feet
-----------
B = area of the semicircle with radius r
B = 0.5*(area of full circle with radius r)
B = 0.5*(pi*r^2)
B = 0.5*pi*r^2
B = 0.5*3.14*4^2 .... the diameter is 8, radius is half that
B = 25.12 square feet
--------------
C = area of the full figure
C = A+B
C = 24+25.12
C = 49.12 square feet
The area of a parallelogram can be found by the equation area = (b)(h)
Find the height of a parallelogram that has an area of 10 1/2 in² and a base of
¾ in.
The height of the parallelogram is ( ) inches.
21/2=(3/4) (h)
(4/3) (21/2) = (4/3) (3/4) (h)
Answers
Answer: Height = 14
Step-by-step explanation: 10.5 / 0.75 = 14
Answer:
The height is 14 inches
The factorization of 12x + 15 is
Answers
Determine the unit rate: 2 dozen tennis balls for $36
Answers
Answer:
It is $1.50 or $18 per dozen tennis balls
Step-by-step explanation:
1. Divide the total price by the number of tennis balls.
36/24= 1.50
So it cost $1.50 per tennis ball.
2. Then solve by dividing the total price by the number of tennis balls:
36/2= $18
"So it cost $18 per dozen tennis balls"
It is $1.50 or $18 per dozen tennis balls
Marisa is making a scale drawing of her house. Her
house is 49 feet wide. On her drawing, the house is 7
inches wide. What is the scale of Marisa's drawing?
The scale is
Answers
Answer:
7 ft per in
Step-by-step explanation:
If she has a scale where 49 feet is represented by 7 inches, then the ratio is:
49 feet to 7 inches which can be written as:49 ft /7 in = 7 ft / in
So the scale is 7 feet per inch
Summarize the slope of a line on a graph that is decreasing to the right.
The line has a ____?
a.
positive slope
c.
zero slope
b.
negative slope
d.
no slope or undefined slope
I need the answer ASAP!!!!
Answers
C. Zero Slope
can you help with 13
Answers
Juan has $10 to spend. He needs $13 to purchase the supplies. Explain how to find the amount of money Juan is short
Answers
Answer:
he can do things that well give him money
Step-by-step explanation:
Answer:
below
Step-by-step explanation:
First, you must find the total he has: $10
Then, you must find how much he need: $13
Then, you take the smaller number to take away from the greater number: 13-10
Finally, you subtract those two numbers to find the amount the Juan needs: $3
Jim earned $95 after working days. At this rate how many days will it take him to earn $285?
Answers
Answer:
It will take him 3 days if every day he earns $95.
95 * 3 = 285
285/95 = 3
Step-by-step explanation:
Hope this helped you! <3
Corrected, the answer is 15.
Maria is 3 years older than her brother, Luis. Luis is 2 years older than their youngest sister, Karla. The sum of their ages is 55. How old are the three siblings?
Answers
Answer:
Karla=16 Luis=18 Maria=21
brainliest for brainliest :)))
Answers
Answer:
e ok
Step-by-step explanation:
ill make something after this brain :D
...............................................................
dont understand this
Answers
Answer:
a
Step-by-step explanation:
I think it's a I am not sure
solve the following
(a) 5+(-5)=?
(b) 5-(-5)=?
(c) 5-(5)=?
(d) 5-/-5/=?
Answers
Answer:
A) 0
B) 10
C) 0
D) I dont understand that one
Step-by-step explanation:
~~—☆☆☆——☆☆☆——☆☆☆——☆☆☆——☆☆☆—~~
Answer:
Hello! I hope I’m correct!! :)
Step-by-step explanation:
Solving a:
Remove the parentheses And now you subtract→ 5 - 5
→ = 0
___________________________
Solving b:
Remove the parentheses Simplfiy (or add/subtract the number)→ 5 + 5
→ = 10
____________________________
Solving c:
Remove the parentheses Now you subtract→ 5 - 5
→ = 0
_____________________________
For d, there is no answer since you can’t really solve it
Answers: 0,10,0 and the last one you can’t solve.Hope this helps! If you have any questions about this, feel free to ask! Have a wonderful day! ^-^
#Thank you so much for using brainly!
Best regard! :D
~By, BrainlyAnime~
~~—☆☆☆——☆☆☆——☆☆☆——☆☆☆——☆☆☆—~~
Triangle GHJ is shown below.
12 in.
H
16 in.
What is the perimeter, in inches, of Triangle GHJ
Answers
Answer:
the perimeter of triangle abc is 56.4 and the perimeter of triangle GHJ is 14.1 cm the perimeter of triangle DEF
Step-by-step explanation:
Find the z-score such that: a. The area under the standard normal curve to its left is 0.5 b. The area under the standard normal curve to its left is 0.9826 c. The area under the standard normal curve to its right is 0.1423 z
Answers
Answer:
The answer is below
Step-by-step explanation:
The z score is used to determine by how many standard deviations the mean is above or below the raw score. If the z score is positive then the raw score is above the mean while if the z score is negative then the raw score is below the mean. The z score is given by:
[tex]z=\frac{x-\mu}{\sigma}\\ \\\mu=mean, \sigma=standard\ deviation[/tex]
a)
From the normal distribution, 0.5 corresponds to a z score of 0.
z = 0.
b) From the normal distribution, an area of 0.9826 to the left corresponds to a z score of 2.11.
c) An area to the right of 0.1423 = an area of 0.8577 ( 1- 0.1423) to the left. From the normal distribution, an area of 0.8577 to the left corresponds to a z score of 1.07
how to subtract 1/4 minus 1/8
Answers
Answer:
You would multiply 1/4 by 2/2 in order to get a common demoninator. The answer is 1/8.
Step-by-step explanation:
Find the missing side length
Answers
Answer:
i think its 21
Step-by-step explanation:
