Answer: -138
Step-by-step explanation:
pls help me with this on my account
gaston is making a tent for boy scout camp. he has been instructed to use canvas on all of the sides except the bottom, which will be made out of a different material. how much canvas will gaston need?
What is the length of a 50-inch TV that has a width of 27 inches?
What is the area of this TV?
4a+(-8), if a= -2 PLZ ANSWER ASAP
Answer:
-16
Step-by-step explanation:
4a+(-8)
4(-2)+(-8)
-8+(-8)
= - 16
What steps to get the principle of a 30 year loan at 5.5%?
Cassie is going to dinner and a movie with some friends. The movie starts at 7:30 p.m. The restaurant
is 15 minutes from the theater, and dinner will take one hour. If Cassie
lives 20 minutes from the restaurant, what time should she leave her house?
Answer:5:55pm
Step-by-step explanation:
7:30-0:20=7:10-1:00=6:10-0:15=5:55pm
number 58 i need help with
Answer:
y = -45x + 13
Step-by-step explanation:
The equation is *** y = [tex]-5x^{2}[/tex] - 20x +13 ***
First: you have to look at [tex]-5x^{2}[/tex] which would equal -25x
Second: you have take the -25x and put into the equation... y = -25x - 20x +13
Third: You have subtract -25x - 20x which equals -45x
Lastly: Now you have y = -45x + 13 and since 13 does NOT have a variable like -45x does, you then know that you have finished the equation
The ratio of yellow blocks to red blocks is 3:5, and the ratio of blue blocks to red blocks is 7:2.
What is the ratio of yellow blocks to blue blocks?
=========================================================
Explanation:
The ratio of yellow to red is 3:5. This could mean we have any of the following situations (pick one):
3 yellow, 5 red6 yellow, 10 red9 yellow, 15 redand so on. In general, we would have 3x yellow blocks and 5x red blocks. The ratio 3x:5x reduces to 3:5 when dividing both parts by x. The x is some positive whole number. The order is important because yellow must be listed first, then red second.
The same idea applies to the other ratio 7:2, which is the blue to red. In that case, we could have...
7 blue, 2 red14 blue, 4 red21 blue, 6 red28 blue, 8 red35 blue, 10 red42 blue, 12 redand so on. Notice that items in bold (in each list) have "10 red" as part of it. This is directly from the fact we multiply the 5 and 2 to get 5*2 = 10.
So we can connect the two ratios to have: 6 yellow, 10 red, 35 blue.
The ratio of yellow to blue is 6:35. This is the final answer. We cannot reduce this ratio any further due to 6 and 35 having no common factors other than 1. It's the same as saying the fraction 6/35 can't be reduced further.
A A rug is 6 feet long and w feet wide. Which expression
does NOT represent the perimeter of the rug in feet?
Circle the correct answer.
A) 2(67/8+w)
B) 2w-13 6/8
C) 2(67/8+w
D) 6 7/8+ w+ 6 7/8 + w
Answer:C
Step-by-step explanation:
Answer:
2(6 7/8) + w
Step-by-step explanation:
Disclamer: NOT 2(6 7/8 + w)
which of the following functions has a vertex of (-4,3) and a line symmetry of x= -4?
a) f (x) = 2( x + 4)² -3
b) f (x) = 2( x - 4)² +4
c) f (x) = 2( x + 4)² +3
d) f (x) = 2( x - 3)² +4
e) f (x) = 2( x - 4)² +3
Answer:
answer: d
Step-by-step explanation:
What is the diameter of the circle?
12 inches
A
6 inches
B
24 inches
с
26 inches
D
48 inches
QUICK PLEASE HELP!!
I WILL MARK BRAINLIEST!!!
A convenience store purchased a magazine and marked it up 100% from the original cost of $2.30. A week later, the store placed the magazine on sale for 50% off. What was the discount price?
Answer:
$2.30
Step-by-step explanation:
The original price is $2.30 an it goes up by 100% which means another 2.30. So add 2.30 and 2.30 together you get 4.60 now divide that by two since the magazine is 50% off and you get the original price which was 2.30
The discount price would be an amount of $2.30.
What is the percentage?The percentage is defined as a ratio expressed as a fraction of 100.
For example, If Misha obtained a score of 67% on her exam, that corresponds to 67 out of 100.
The convenience store bought a magazine for $2.30 and increased the price by 100%. A week later, the retailer reduced the price of the magazine by half.
As per the given situation, the required solution would be as:
The original price is $2.30, then it increases by 100%, or another $2.30. So add 2.30 and 2.30 to get 4.60, then split that by two because the magazine is 50% discounted to obtain the original price of 2.30.
⇒ $2.30 + $2.30
⇒ $4.60
⇒ $4.60 / 2
⇒ $2.30
Therefore, the discount price would be amount of $2.30.
Learn more about the percentages here:
brainly.com/question/24159063
#SPJ2
The perimeter of the figure below is 152.6 ft. Find the length of the missing side.
Answer:
13.4
Step-by-step explanation:
13.4 is the answer because a perimeter is the total distance around the shape
when you take 152.6 and subtract all of the different sides your left with the length of the last side
152.6 - 13.1 - 13.1 - 9.3 - 54.2 - 9.3 - 27.1 - 13.1 = 13.4
A school has found from past records that the average scores for boys is 75 in a sample of 45 boys, and the average scores for girls is 85 in a sample of 30 girls. The population standard deviations for boys' and girls' scores were 25 and 17, respectively. The 90% confidence interval for the difference of the population means is approximately (_____, −2.022). Assume that the distributions of the scores of men and women are normally distributed. Round your answer to two decimal places.
Confidence Level Corresponding zc Value
90% confidence zc=1.645
95% confidence zc=1.96
99% confidence zc=2.576
Answer:
The 90% confidence interval for the difference of the population means is approximately (-17.98, -2.02).
Step-by-step explanation:
Before building the confidence interval, we need to understand the central limit theorem and subtraction of normal variables.
Central Limit Theorem
The Central Limit Theorem estabilishes that, for a normally distributed random variable X, with mean [tex]\mu[/tex] and standard deviation [tex]\sigma[/tex], the sampling distribution of the sample means with size n can be approximated to a normal distribution with mean [tex]\mu[/tex] and standard deviation [tex]s = \frac{\sigma}{\sqrt{n}}[/tex].
For a skewed variable, the Central Limit Theorem can also be applied, as long as n is at least 30.
For a proportion p in a sample of size n, the sampling distribution of the sample proportion will be approximately normal with mean [tex]\mu = p[/tex] and standard deviation [tex]s = \sqrt{\frac{p(1-p)}{n}}[/tex]
Subtraction between normal variables:
When two normal variables are subtracted, the mean is the difference of the means, while the standard deviation is the square root of the sum of the variances.
Boys:
Mean of 75, sample of 45, standard deviation of 25.
This means that [tex]\mu_B = 75, s_B = \frac{25}{\sqrt{45}}[/tex]
Girls:
Mean of 85, sample of 30, standard deviation of 17.
This means that [tex]\mu_G = 85, s_G = \frac{17}{\sqrt{30}}[/tex]
Distribution of the difference of mean grades of boys and girls:
[tex]\mu = \mu_B - \mu_G = 75 - 85 = -10[/tex]
[tex]s = \sqrt{s_B^2+s_G^2} = \sqrt{(\frac{25}{\sqrt{45}})^2+(\frac{17}{\sqrt{30}})^2} = 4.85[/tex]
Confidence interval:
As stated, the critical value is [tex]z = 1.645[/tex]
The margin of error is of:
[tex]M = zs = 1.645*4.85 = 7.98[/tex]
Lower bound:
[tex]\mu - M = -10 - 7.98 = -17.98[/tex]
Upper bound:
[tex]\mu + M = -10 + 7.98 = -2.02[/tex]
The 90% confidence interval for the difference of the population means is approximately (-17.98, -2.02).
If x
[tex] x = \sqrt[?]{5 } + \sqrt{3} + x + \frac{1}{?x} = [/tex]
Answer:
bh
Step-by-step explanation:
34
Answer:
10 − 3 x = 2 x + 5 \sqrt{10-3x}=\sqrt{2x+5} 10−3x =2x+5 square root of, 10, minus, 3, x, end square root, equals, square root of, 2, x, plus, 5, end square root.
Step-by-step explanation:
ax - 8 = x + 2
If x = 2 on the equation above, what is the value of a?
Answer:
a=2
Step-by-step explanation:
ax-8=x+2
when x=2
2a-8=2+2
2a=4+8
2a=12
a=12/2=6
Zahra runs an activity club
She needs 2 members of staff for every 15 people at the activity club.
There will be 90 people at the activity club on Monday
Zahra has 10 members of staff available for Monday.
Does Zahra have enough staff available for Monday?
(3)
Answer:
No, Zahra does not have enough staff available
Step-by-step explanation:
Given
[tex]Ratio = 2 : 15[/tex] --- staff to people
[tex]Staff = 10[/tex]
[tex]People = 90[/tex]
Required
Are there enough staff?
Start by representing the data as a ratio
[tex]Ratio = Staff : People[/tex]
So, we have:
[tex]Ratio = 10 : 90[/tex]
Divide by 10
[tex]Ratio = 1 : 9[/tex]
Multiply by 2
[tex]Ratio = 2 : 18[/tex]
This means that, she has 2 members of staff for every 18 people (instead of the expected 2 to 15 people)
Hence, Zahra does not have enough staff available
1) Simplify the product using the distributive property.
(x-2)(x+4)
Please help me answer this question
Use formulas to find area
Answer:
120.08
Step-by-step explanation:
15.8 x 7.6
-> 120.08 [tex]m^2\\[/tex]
HELP ME PLEASEEEEEEEEEEEEEEEEEEE
Answer:
heyy matee...
see
Vertices (V) = 8
Faces (F) = 6
Edges (E) => F + V - E = 2 (EULER'S FORMULA)
so 6 + 8 - 2 = E => E = 12
now just look at options
and however its a common thing that if Vertices are 8 and Faces are 6 and Edges are 12 then it is cube or cuboid
and another name of cuboid is rectangular prism ;)
hence answer is option c - rectangular prism
brainliest possible ?
LUVP is an example of:
***Any links will be reported***
****i will mark brainliest****
Answer:
hambuger cheesebuger big mac whooper
Step-by-step explanation:
Answer:
This is easy. Just to help you, and not necessarily cheat, it already tells you what the missing numbers are. So if a is 3, you can just go 2 x 3 x 3. when numbers are together like this, or letters, you multiply. (3(4), or 2a) You do that with the rest of your equations, and you will get your answers. But if this isn't what you having a problem with, then just tell me.
In general, the larger a sample is: a. The more difficult it becomes to avoid atypical cases. b. The greater the standard deviation becomes. c. The smaller the standard deviation becomes. d. The more closely it represents the population. e. The more likely it is that it will be biased.
Answer:
d
Step-by-step explanation:
Larger samples more closely resemble the population from which they come.
Think of the difference between sampling hundreds of people from a town, perhaps asking them if they've ever ordered fast food. If you go to McDonald's and ask customers as they come out, you wouldn't expect those answers to represent the entire population of the town, right?
solve the exponential equation 2^2x +2^x+1 -8
Answer: can you tell me what the x= to because I can’t solve it like that if you give me what the x= to I tell you the answer
Step-by-step explanation:
Answer:
2^x+4^x-7
Step-by-step explanation:
In London today, twice the low temperature was less than three times
the low temperature minus ten. In interval form, what are the possible
temperatures?
Find the 12th term of the sequence: 48, 44, 40, 36...
Answer:
1124
Step-by-step explanation:
The Unit Circle
What is tan 45°?
a. 0
b. 1
c. -1
d. 1/2
Please select the best answer from choices provided
Answer:
B. 1
Step-by-step explanation:
I calculated it logically
what is quartile 1 and 3
Answer:
Q1 = 2
Q3 = 3
I think that's the answer
Hope this helps! (°◡°♡).:｡
Answer:
Q1 is 2 Q2 is 3
Just cut the list of number into quarters
Each week, the price of oranges at the farmer's market increases by 20%.
The price of oranges this week is $4.50.
What was the price last week?
Will give brainliest to correct answer.
The price of orange last week was $3.75
An equation is used to show the relationship between two or more numbers and variables.
The price of oranges increases by 20% each week.
The price of oranges this week is $4.50. Hence:
Price of orange last week (x) is given by:
4.5 = x + 20% of x
4.5 = x + 0.2x
1.2x = 4.5
x = 3.75
The price of orange last week was $3.75
Find out more on equation at: https://brainly.com/question/24868934
12 ft 12 ft 10 ft J. 12 ft 10 ft 12 ft
Answer:
What is your question?
Step-by-step explanation:
4 x 32 – 3+5 x 2 =
el
Answer:
4x32-3+5x2=
128-3+5x2
128-3+10
128+7=
135
