Answer:
x = -4
Step-by-step explanation:
x - 8 = 3x
First, subtract x from both sides:
x - 8 = 3x
-x - x
________
-8 = 2x
Then, divide both sides by 2:
-8 = 2x
-4 = x
-
The following situations showed a strong correlation. Which implies causation?
A)an increase in the average speed a car travels and a decrease in the time it takes to reach the destination
B)an increase in a company's advertising budget and an increase in their profit
C)an increase in temperature and an increase in ice cream sales
D)an increase in salary and a decrease in sick days
Answer: an increase in the average speed a car travels and a decreased in the time it takes to reach the destination
Step-by-step explanation:
If you had 20 equal parts, how would you shade in 20% of it? How much parts would you have shade in?
Answer:
4
Step-by-step explanation:
20 percent is 1/5. 1/5 of 20 is 4.
You would need to shade in 4 parts.
20% of something is equal to 1/5 (because 100/5=20), so you would need to find 1/5 of 20. You can do this by dividing 20 by 5, and 20 ÷ 5 = 4.
I hope this helps!
Classify the triangle shown below. Check all that apply.
The shown triangle is scalene and right, so the correct options are C and F.
How to identify the shown triangle?
First, we can see that the 3 sides have different measures. So the triangle is Scalene (and we discard options A and E).
We also can see that one of the angle is 90°, which means that we have a right triangle. So option C is correct. (And we discard B and D).
Concluding, we have a scalene right triangle. So the correct options are C and F.
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Answer:
Right and Scalene
Step-by-step explanation:
A cereal box is 12cm tall. The area of the base is 7cm. What is the volume?
Answer:
84cm3
Step-by-step explanation:
Volume of the box = Area x Height
V = AH
From the question given,
Height = 12cm
Area = 7cm2
Volume =?
Volume = Area x Height
Volume = 7 x 12
Volume = 84cm3
Therefore, the volume of the cereal box is 84cm3
The volume of the cereal box is 84 cm³
Volume of solid shapesFrom the question, we are to determine the volume of the cereal box
The volume of the cereal box can be calculated using
Volume = Base area × Height
From the given information
Base area = 7cm²
Height = 12 cm
Then,
Volume of the cereal box = 7cm² × 12cm
Volume of the cereal box = 84 cm³
Hence, the volume of the cereal box is 84 cm³.
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Please Help Will Mark Brainliest
Answer:
the way i put these numbers is the way the numbers go on the chart
15 25 25 65
10 5 20 35
25 30 45 100
Step-by-step explanation:
Answer:
A| 15 | 25 | 25 | 65
D| 10 | 05 | 20 | 35
T| 25 | 30 | 45 | 100
A: agree
D: Disagree
T: Total
Leo wants to determine the average number of texts middle school students send in a day. Since all middle school students are enrolled in history, he randomly surveyed 4 students from each of Mr. Barnes’s eighth-grade history classes. Ms. Lopez and Mrs. Frank also teach eighth-grade history. What should Leo do to ensure his sample is representative of all middle school students?
He should take the sample as is because he randomly surveyed students in each of Mr. Barnes’s classes.
He should also take a sample from Ms. Lopez’s and Mrs. Frank’s classes so that each student has the same chance of being chosen.
He should also take a sample from each of the other history classes in all of the other grades in the middle school.
He should survey all the students in all the history classes to make sure he collects enough data.
Answer:
In order for his sample to be representative of all middle school students Leo: C) Should also take a sample from each of the other history classes in all of the other grades in the middle school.
What is sample?
Sample can be defined as the data that is randomly collected by a researcher so as to reach or draw a conclusion.
Since only one grade is being surveyed which is Mr. Barnes’s eighth-grade history classes, he should as well carryout the survey on Ms. Lopez and Mrs. Frank history class.
In conclusion he should also take a sample from each of the other history classes in all of the other grades in the middle school.
Final answer:
Leo should improve his survey method by sampling students from all eighth-grade history classes, including those of Ms. Lopez and Mrs. Frank, to ensure that each student has an equal chance of being selected and to obtain a representative sample of the middle school population.
Explanation:
Leo aims to determine the average number of texts middle school students send in a day. To ensure his sample is representative of the entire middle school student population, he should consider the sampling method. While he randomly surveyed students from Mr. Barnes’s eighth-grade history classes, only selecting students from a single teacher's classes might not guarantee a representative sample.
Thus, Leo should extend his survey to include students from Ms. Lopez’s and Mrs. Frank’s classes, which will give every student an equal chance of being chosen. This is important because it would include a wider range of perspectives and reduce the chance of sample bias. If Leo's goal is to understand the average texting behavior of all middle school students, and not just those in eighth grade, he should ideally sample students from other grades as well. However, if his focus is specifically on eighth graders, then sampling from all eighth-grade history classes should suffice.
Which ratio is equal to 2/3?
A: 6/6
B:5/9
C: 6/9
D: 5/6
Answer:
C
Step-by-step explanation:
To get 6/9, you would multiply the numerator 2 by 3, and the denominator 3 by 3, to get 6/9.
Which angles could form an obtuse triangle?
A.)67°,34°,79°
B.) 48°,90°,42°
C.)30°,38°,112°
D.)20°,80°,80°
Answer:
C. because it is the only set with an angle over 90 degrees like the angle is obese (to remember)
Step-by-step explanation:
when classifying a triangle by its
sides, what type of triangle has no
equal sides?
A.Isoceles
B.Supplementary
C.Equilateral
D.Scelene
Answer:
D) Scalene
Step-by-step explanation:
the ending balance on an investment is $6,631.43. if the principal was invested at 8.15% compounded quarterly for 42 months, what was the principal
Answer:
13.1%
Step-by-step explanation:
Jasper built a dollhouse for his younger sister. A rectangular prism has a length of 24 inches, width of 8 inches, and height of 10 inches. A triangular prism has a triangular base of 24 inches and height of 6 inches. The height of the prism is 8 inches. Which equation shows how to determine the volume of the dollhouse? V = 24 (10) (8) + one-half (6) (24) (8) V = 24 (10) (8) + one-third (6) (24) (8) V = 24 (10) (8) + one-half (6) (24) (10) V = 24 (10) (8) + one-third (6) (24) (10) i will mark brainliest hurry
Answer:
A )
Step-by-step explanation:
Please let me know if it is right
The volume of a dollhouse is V=24×8×10+1/2 ×24×6×8. Therefore, the correct answer is option A.
What is the volume?Volume is the measure of the capacity that an object holds.
Formula to find the volume of the object is Volume = Area of a base × Height.
Given that, Jasper built a dollhouse for his younger sister.
A rectangular prism has a length of 24 inches, width of 8 inches, and height of 10 inches.
We know that, the formula to find the volume of a rectangular prism is Length×Width×Height
Now, V₁ =24×8×10
= 1920
A triangular prism has a triangular base of 24 inches and height of 6 inches. The height of the prism is 8 inches.
V₂=Area of triangle ×Height
= 1/2 ×24×6×8
= 12×6×8
= 576
So, equation is V=V₁+V₂
V=24×8×10+1/2 ×24×6×8
Therefore, option A is the correct answer.
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Find the volume of the prism.
5 units
2 units
8 units
Answer:
80 units.
Step-by-step explanation:
If it is a rectangular prism, then it is 5×2×8, which is 10, from the 5×2 and 8. 10×8 is 80. So the final answer is 80 units cubed. Hope this helps! If you are still confused, please comment so I can help you!
Rectangular Prism: 80 units^3
V = lwh = 5(2)(8) = 80 units^3
Triangular Prism: 40 units^3
V = [tex]\frac{bhl}{2}[/tex] = [tex]\frac{5(2)(8)}{2}[/tex] = [tex]\frac{80}{2}[/tex] = 40 units^3
Perform the division and leave the result in trigonometric form.
Answer:
[tex]\frac{1}{2}[/tex] ( cos40° + isin40°)
Step-by-step explanation:
To divide
[tex]\frac{r_{1(cosx_{1}+isinx_{1}) } }{r_{2}(cosx_{2}+isinx_{2}) }[/tex]
= [tex]\frac{r_{1} }{r_{2} }[/tex] [ cos(x₁ - x₂) + isin(x₁ - x₂)
Given
[tex]\frac{2(cos90+isin90}{4(cos50+isin50)}[/tex]
= [tex]\frac{2}{4}[/tex] ( cos(90 - 50)° + isin(90 - 50)°
= [tex]\frac{1}{2}[/tex] ( cos40° + isin40° )
Read each sentence. Write the correct comparative form of the adverb in parentheses on the line provided.
1. I can run (fast) than my brother.
2. Our father run (quickly) of all.
3. He trains (often) than my brother does
4. He enjoys running (fully) than biking.
5. Even so,he practices swimming (seriously) of all.
6. I prefer team sports (strongly) than other sports.
7. I can throw (accurately) than our team’s other pitcher.
8. In the entire league, she pitches (wildly) of all.
9. Our final game will be here (soon) than we expect.
10. The audience will cheer (loudly) of all during our final inning.
Answer:
Step-by-step explanation:
ur mom
what is 5374 rounded to the nearest 100
Answer:
5400
Step-by-step explanation:
Matias' stepmother uses a 30%-off coupon to buy the ingredients for huevos rancheros.
She spends $28.
» What is the regular price, r, of the ingredients before the discount?
Enter the amount
Answer:
$40Step-by-step explanation:
To determine the regular price r of the ingredients before the discount, we have to consider that $28 represents 70% of the regular price as this amount has a 30% discount and with that, find the price that represents 100%:$28 → 70% r ← 100%r=($28*100%)/70%= $40The regular price r of the ingredients before the discount is $40.The regular price, r of the ingredients before the discount is $40.
What is Percentage?Percentage is defined as the parts of a number per fraction of 100. We have to divide a number with it's whole and then multiply with 100 to calculate the percentage of any number. So the percentage actually means a part per 100.
Percentage is usually denoted by the symbol '%'.
Amount spent by Matias' stepmother to buy the ingredients for huevos rancheros = $28
This is the discounted price after a 30% off discount.
Let the regular price be x.
x - (30% of x ) = 28
x - (0.3 x) = 28
0.7x = 28
x = 28 / 0.7
x = 40
Hence the original price of the items is $40.
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what three numbers multiply to get 158?
Answer:52.6
Step-by-step explanation:
Answer:
2x79=158
79x2=158
158x1
jose read 4 books in 6 months. what was his rate of reading in months per book?
Answer:
67/1 or about 67% of a book per month
Step-by-step explanation:
Can any one help me with volume? plz
Volume is usually h*b*w. It depends on the shape you are using. Do you have a specific example you need help with?
Write an explicit formula for the sequence. Use this, to find the 80th term of the sequence that begins: -3,1,5,9....
Answer:
see explanation
Step-by-step explanation:
There is a common difference d between consecutive terms in the sequence, that is
9 - 5 = 5 - 1 = 1 - (- 3) = 4
This indicates the sequence is arithmetic with n th term
[tex]a_{n}[/tex] = a₁ + (n - 1)d
where a₁ is the first term and d the common difference
Here a₁ = - 3 and d = 4, thus
[tex]a_{n}[/tex] = - 3 + 4(n - 1) = - 3 + 4n - 4 = 4n - 7 ← explicit formula
Thus
[tex]a_{80}[/tex] = 4(80) - 7 = 320 - 7 = 313
Suppose a normal distribution has a mean of 79 and a standard deviation of 7. What is P(x< or = to 72)?
Answer:
P( Z <= -1) = 0.1587
Step-by-step explanation:
ok, mean u = 79
s = 7
find P( x <= 72)
P( (x - 79)/7 <= (72 - 79)/7 ) = ?
P( Z <= -1) = 0.1587 from Z-scores table
Jerry's geoometry teacher drew a triangle with angles that measured 120°, 34°, and 26°. What can Jerry classify the triangle as?
A.) acute
B.) obtuse
C.) right
D.) isosceles
Answer:
isn't it A
Step-by-step explanation:
Answer:
B) Obtuse
Step-by-step explanation:
If ΔEFG ~ ΔLMN with a ratio of 2:1, which of the following is true?
1-segment EF over segment LM equals segment FG over segment MN
2-segment EF is congruent to segment LM
3-segment EF over segment LM equals segment EG over segment LM
4-segment EG is congruent to segment LM
Answer:
A
Step-by-step explanation:
EF over LM = FG over MN
Find the inverse of the function.
y=4x^2+2
Need Help
find the area of the circle
(must use 22/7 for pi)
1. circumfence 12
2. circumfence 16
Answer:
1. about 3.82
2. about 5.09
Step-by-step explanation:
correct me if i am wrong
will give brainliest!
Answer:
2/6
Step-by-step explanation:
since there is no number cube, you eliminate that from the problem. 0/6. then you count the 2s there are two "2's" out of the 6 numbers on the spinner. so 2 out of 6, or 2/6
HELP NOW BRAINLIEST What is the difference between the number of animals owned by the most people and the number of animals owned the by the least?
A) 6
B) 7
C) 8
D) 9
Answer:
7
Step-by-step explanation:
The most people own a cat which is 11
The least people own a rabbit which is 4
11-4 = 7
Answer:
B
Step-by-step explanation:
A biking track has a length of 3696 feet . How long is this in miles ?
Answer:
0.7Step-by-step explanation:
0.000189394= 1 foot
5280= 1 mile
Captain Ben has a ship, the H.M.S Crimson Lynx. The ship is four furlongs from the dread pirate Umaima and her merciless band of thieves.
If his ship hasn't already been hit, Captain Ben has probability 3/4 of hitting the pirate ship. If his ship has been hit, Captain Ben will always miss.
If her ship hasn't already been hit, dread pirate Umaima has probability 1/2 of hitting the Captain's ship. If her ship has been hit, dread pirate Umaima will always miss.
If the Captain and the pirate each shoot once, and the pirate shoots first, what is the probability that both the pirate and the Captain hit each other's ships?
Answer:
0
Step-by-step explanation:
trust me
Answer:
0
Step-by-step explanation:
What is the value of the expression below when b = 4 and c=5?
8b2 - 6c + 9
A 48
B79
107
D 888
Answer:
107
Step-by-step explanation:
8b^2 - 6c + 9
Let b=4 and c=5
8*(4)^2 -6(5)+9
Exponents first
8* 16 -30 +9
Then multiply
128 -30+9
Then add and subtract
107