Answer:
26
Step-by-step explanation:
13x2=26 you can also do 13+13=26 if easier
please help,, will mark brainliest!!
Answer:
sorry thats too hard for me
Step-by-step explanation:
Simplify (12+3i)−(−5+2i)
Answer:
17+5i
Step-by-step explanation:
add the like terms
double negative equals positive
;)
Answer:
17+i
Step-by-step explanation:
Which is the greatest mass? *
4000 g
400000 mg
40 kg
400 cg
theorem : If x is a positive integer less than 4, then (x + 1)^3 > 4x Which set of facts must be proven in a proof by exhaustion of the theorem? A. 1^3 > 4^0 2^3 > 4^1 3^3 > 4^2 4^3 > 4^3
B. 3^3 > 4^2 4^3 > 4^3 C. 2^3 > 4^1 3^3 > 4^2 4^3 > 4^3 D. 2^3 > 4^1 3^3 > 4^2 4^3 > 4^3 5^3 > 4^4
Therefore, we need to prove the set of facts in option C: \(2^3 > 4^1, 3^3 > 4^2, and 4^3 > 4^3\) (which is always true since any positive number raised to the power of 3 is greater than the same number raised to any power less than 3).
The theorem states that for any positive integer x less than 4, (x+1)³ > 4x.
To prove this theorem by exhaustion, we need to consider all possible values of x less than 4 and show that the inequality (x+1)³ > 4x holds for each of these values.
The possible values of x are 1, 2, and 3. Therefore, we need to prove the following three facts:
1³ > 4(0) (when x=1, the inequality becomes (1+1)³ > 4(1), which simplifies to 8 > 4, which is true)
2³ > 4(1) (when x=2, the inequality becomes (2+1)³ > 4(2), which simplifies to 27 > 8, which is true)
3³ > 4(2) (when x=3, the inequality becomes (3+1)³ > 4(3), which simplifies to 64 > 12, which is true)
Learn more about theorem here:
https://brainly.com/question/14629237
#SPJ11
i need help asap plzz
Answer: I don’t get the question but I think this is the answers.
Answer:
-28in have a grate day
Step-by-step explanation:
pls brailiest
Josiah plants vegetable seeds in rows. Each row has the same number of seeds in it. He plants more than one row of seeds. What could be the total number of seeds he plants?
The total number of seeds that Josiah would plant would be = nR×S
How to determine the total number of seeds that Josiah will plant?To determine the total number of seeds that Josiah will plant will be to add the seeds in the total number of rooms he planted.
Let each row be represented as = nR
Where n represents the number of rows planted by him.
Let the seed be represented as = S
The total number of seeds he planted = nR×S
Therefore, the total number of seeds that was planted Josiah would be = nR×S.
Learn more about multiplication here:
https://brainly.com/question/30340107
#SPJ1
There are 44,000 adults living in Oak city in examining attitudes according to the news of research group as random sample of Oak city adults what is your main source of news the results are shown below based on the sample predict the number of adults in Oak city whose main source of the news is television on your answer to the nearest whole number do not run by any intermittent calculations
The predicted number of adults in Oak City whose main source of news is newspapers or the radio is 85
To predict the number of adults in Oak City whose main source of news is newspapers or the radio, we need to add the number of adults who answered "Newspapers" to the number of adults who answered "Radio".
According to the sample data
Number of adults who answered "Newspapers": 64
Number of adults who answered "Radio": 21
Therefore, the predicted number of adults in Oak City whose main source of news is newspapers or the radio we have to use the addition
64 + 21 = 85
Rounding this answer to the nearest whole number, we get
85 ≈ 85
Learn more about addition here
brainly.com/question/29791798
#SPJ4
The given question is incomplete, the complete question is:
There are 44,000 adults living in Oak City. In examining attitudes toward the news, a research group asked a random sample of Oak City adults "What is your main source of news?" The results are shown below. Main Source of News Newspapers Number of Adults 64 Internet 80 Television 126 Radio 21 Other 40 Based on the sample, predict the number of adults in Oak City whose main source of news is newspapers or the radio. Round your answer to the nearest whole number.
Water vapor constitutes about this much of the atmosphere by volume.
-0-4 percent
-4-12 percent
-0-12 percent
-0-100 percent
-4-25 percent
Water vapor is an important component of the Earth's atmosphere, and it plays a crucial role in regulating the climate. water vapor makes up about 0-4% of the Earth's atmosphere by volume . So the correct option is A.
It is a greenhouse gas, which means that it can trap heat in the atmosphere and contribute to global warming. The amount of water vapor in the atmosphere can vary depending on location, temperature, and weather conditions. On average, water vapor makes up about 0-4% of the Earth's atmosphere by volume. This may seem like a small amount, but it has a significant impact on weather patterns and climate. As temperatures rise due to climate change, the amount of water vapor in the atmosphere is expected to increase, which could have further impacts on global climate.
Learn more about Earth's atmosphere,
https://brainly.com/question/13154099
#SPJ4
To design a new advertising campaign, Ford Motor Company would like to estimate the proportion of drivers of the new Ford Fusion that are women. In a random sample of 91 Fusion owners, 49 of them were women. What is the 99% confidence interval estimating the proportion of all drivers who are women?1) ( 0.41689 , 0.66003 )2) ( 0.40385 , 0.67307 )3) ( -0.40385 , 0.67307 )4) ( 0.32693 , 0.59615 )5) ( 0.4862 , 0.59072 )
The 99% confidence interval estimating the proportion of all Ford Fusion drivers who are women is (0.40685, 0.67007). The closest option to this interval is option 2) (0.40385, 0.67307).
The answer is option 1) (0.41689, 0.66003). To design a new advertising campaign, Ford Motor Company conducted a sample survey of 91 Fusion owners and found that 49 of them were women. To estimate the proportion of all drivers who are women, a confidence interval is calculated. The formula for calculating the confidence interval is:
sample proportion ± z*(standard error)
where z is the critical value for the desired confidence level and the standard error is calculated as:
sqrt((sample proportion*(1 - sample proportion))/sample size)
For a 99% confidence interval, the critical value is 2.576. Plugging in the values from the sample, we get:
sample proportion = 49/91 = 0.5385
sample size = 91
Using the formula above, we can calculate the standard error as:
sqrt((0.5385*(1 - 0.5385))/91) = 0.0625
Finally, we can plug in the values into the confidence interval formula:
0.5385 ± 2.576*0.0625
which gives us the interval (0.41689, 0.66003). Therefore, option 1) is the correct answer.
Learn more about Confidence Intervals:
brainly.com/question/24131141
#SPJ11
The vertex form of the equation of a parabola is y = 2(x + 4)2 - 7.
What is the standard form of the equation?
Can someone just solve the problem please? it has to be an inequality in the equation
Answer:
(A) Let a represent the number of hours Cassie needs to work
(B) The inequality is 10 × a + 30 ≥ 140
(C) a ≥ 11
(D) Cassie needs to work babysitting for her neighbor for at least 11 hours to be able to buy the graphing calculator
Step-by-step explanation:
The least amount Cassie needs for the graphing calculator = $140
The amount Cassey currently have saved = $30
The amount her neighbor offers for her to babysit = $10 per hour
(A) The definition of the variable is given as a = The number of hours Cassie needs to work
(B) The inequality that defines the situation is 10 × a + 30 ≥ 140
(C) Solving the inequality gives;
10 × a + 30 ≥ 140
10 × a ≥ 140 - 30
∴10 × a ≥ 110
a ≥ 110/10
∴ a ≥ 11
Which gives;
The number of hours Cassie needs to work = a ≥ 11 hours
(D) The solution means that Cassie needs to babysit for her neighbor for at least 11 hours to be able to buy the graphing calculator.
what is the ratio of 96:24 in simplest form
Answer:
4:1
Step-by-step explanation:
Answer:
4:1
Step-by-step explanation:
8(n + 2) = 24 solve for n
Answer:
n=1
Step-by-step explanation:
8×3=24
3-2=1
8(1+2)=24
n=1
Answer:
n = 1
Step-by-step explanation:
First expand the brackets:
8n + 16 = 24
16 + 8 =24 so n must be 1
The synthesis of a large collection of information that contains well-tested and verified hypotheses about certain aspects of the world is known as a scientific
A) fact.
B) hypothesis.
C) law or principle.
D) theory.
E) none of these.
Answer:
it's a B because it's the best answer for this quistion like they are saying IF I do this Then this should happen
which definition best describes Pythagorean triples
Answer:
Don't trust me but I would say B
Answer:
A triangle whose sides form a Pythagorean triple is called a Pythagorean triangle, and is necessarily a right triangle. The name is derived from the Pythagorean theorem , stating that every right triangle has side lengths satisfying the formula a2+ b2= c2; thus, Pythagorean triples describe the three integer side lengths of a right triangle.
Step-by-step explanation:
4v + 9 x 7? step by step
4v + (9 x 7)= 4v +56
The total length of a road trip was 13.2 hours. If highway signs are posted every 0.06 hours, including one at the end of the road trip, how many highway signs will there be on the road trip?
There will be 221 highway signs on the road trip.
What is Total Length?
Whole Length (TL) is the measurement taken in a straight line, with the fish lying on its side, from the tip of the snout to the end of the tail (caudal fin).
The total length of the road trip is 13.2 hours.
Highway signs are posted every 0.06 hours. To find out how many highway signs are on the road trip, we can divide the total length of the road trip by the interval between each sign and then add one more sign for the end of the road trip:
(number of signs) = (total length of road trip) / (interval between signs) + 1
Substituting the values, we get:
(number of signs) = 13.2 / 0.06 + 1
(number of signs) = 220 + 1
(number of signs) = 221
Therefore, there will be 221 highway signs on the road trip.
To know more about Total Length visit,
https://brainly.com/question/26319327
#SPJ1
what is the last digit of 3 with a power of 2011
So to find any last digit of 3^2011 divide 2011 by 4 which comes to have 3 as remainder. Hence the number in units place is same as digit in units place of number 3^3. Hence answer is 7.
4 tomatoes and 8 avocados cost $10. Six tomatoes and 14 avocados cost $17. How much does a single avocado and a single tomato cost?
Answer:
One avocado costs $1 and one tomato costs $0.50
Step-by-step explanation:
Set up a system of equations where t is the number of tomatoes and a is the number of avocados:
4t + 8a = 10
6t + 14a = 17
Solve by elimination by multiplying the top equation by 3 and the bottom equation by -2:
12t + 24a = 30
-12t - 28a = -34
Add them together and solve for a:
-4a = -4
a = 1
Plug in 1 as a into one of the equations and solve for t:
4t + 8a = 10
4t + 8(1) = 10
4t + 8 = 10
4t = 2
t = 0.5
So, one avocado costs $1 and one tomato costs $0.50
rewrite an equivalent expression for 84+96
Answer:
90 + 90
Step-by-step explanation:
Can someone please help me out ?
Answer:
the correct answer is D.
Answer:
-.25 + 2 keep adding a number to -.25 and youll figure it out, also without the x itll need 8.25 more to equal 10 or more to get past 10.
Step-by-step explanation:
please answer the question on the attachment <3
Answer:
3.8 foot
Step-by-step explanation:
with reference angle 31
perpendicular (p)= x
base(b) = 6.3
tan 31 = p/b
0.6 = x/6.3
x = 3.8 foot
Simplify.
2 sixth, 2 ninth, 2 tenths
Answer and Step-by-step explanation:
\(\frac{2}{6} -> \frac{1}{3}\\\\\\\frac{2}{9} \\\\\\\frac{2}{10} ->\frac{1}{5}\)
#teamtrees #WAP (Water And Plant) #SPEW (The Society for the Promotion of Elfish Welfare)
Answer:
1/3, 2/9, 1/5
Step-by-step explanation:
2 sixths simplifies to 1/3, 2/9 cannot be simplified, and 2 tenths simplifys to 1/5
Solve the equation: 7M - 1 = 6
Answer:
M=1
Step-by-step explanation:
7M-1=6
7M=6+1
7M=7
M=7/7
M=1
\(2x + x { }^{2} + x\)
Answer:
\(\huge \boxed{x(x+3)}\)
Step-by-step explanation:
\(2x+x^2 +x\)
Combine like terms.
\(x^2 +(2x+x)\)
\(x^2 +3x\)
Factor out \(x\) from the expression.
\(x(x+3)\)
I need help with 9-11. I really don’t understand this, please help me!!!
Step-by-step explanation:
9.
we get the extreme values of y (a function) by finding the zeroes of the first derivative (that gives us the x-positions) and then using these x values in the original function.
a quadratic function has only one extreme value (1 less than the degree of the polynomial). but 2 zeroes (exactly the degree of the polynomial) - don't mix these two things up.
as the leading coefficient is positive (1), we know that the parabola is opening upwards, and the extreme value will be the vertex and therefore the minimum.
y = (x + 4)² + 6
y = x² + 8x + 16 + 6 = x² + 8x + 22
y' = 2x + 8
2x + 8 = 0
2x = -8
x = -4
(-4 + 4)² + 6 = 0² + 6 = 6
the smallest possible value of y = 6 (at x = -4).
10.
the intercept form of a parabola equation is
y = a(x - p)(x - q)
p and q are the x-intercept values.
in our case we see p = -3, q = 3.
also, we see the vertex being (0, 9), which we need to get "a".
y = a(x - -3)(x - 3) = a(x + 3)(x - 3)
using the vertex coordinates to get a :
9 = a(0 + 3)(0 - 3) = -9a
a = 9/-9 = -1
so, the quadratic equation is
y = -(x + 3)(x - 3) = -(x² - 9) = -x² + 9
11.
I assume the thinking here is : the flight curve of every falling object is a parabola.
the vertex of this parabola is (0, 36), as x represents the time in seconds, and y represents the height in ft.
the vertex form of a parabola is
y = a(x - h)² + k
with (h, k) being the vertex.
y = a(x - 0)² + 36 = ax² + 36
a must be negative, as the fall parabola opens downwards.
for typical fall situations on Earth a = -g/2 ≈ -16 (g being the gravity constant of 32.17405... ft/s²).
so, we have
y = -16x² + 36
for what x is y = 0 ?
0 = -16x² + 36
16x² = 36
x² = 36/16 = 9/4
x = 3/2 = 1.5
the coin hits the water after 1.5 seconds.
Please make a simplified expression for both shapes!!
Answer:
.
Step-by-step explanation:
Answer:
2x+3 for the square
Step-by-step explanation:
I am not sure how to do the triangle one but I know how to do the square. since all the sides are equal in a square you would make the equation 4(1/2x+3) for your answer. 4times 1/2 is = 2 so it would be 2x+3 I THINK
pls explain this to me!!
A) C(7) represents the cost of an Uber for 7 miles. Since 'm' is the cost for m miles, '7' is the cost for 7 miles.
B) If Todd's total bill was $30, that means the cost (C) is 30. Replace C with 30.
30 = 1.5m+4.5
Now solve this equation.
30-4.5 = 1.5m+4.5-4.5
25.5 = 1.5m
m = 17
If Todd's total bill was $30, his Uber ride was 17 miles.
123456789+123456789????????????????????
If ABC is an isoselous triangle with AB ~=AC. If AX is the bisector of angle BAC meeting BC at X. Prove that X is the main point of BC
If ABC is an isosceles triangle with AB ~=AC. If AX is the bisector of angle BAC meeting BC at X. It is prove that : CD=BD and ∠C=∠B
Isosceles Triangle:
An isosceles triangle is a triangle whose two sides have the same length. Sometimes it is specified as having exactly two sides of equal length, sometimes as having at least two sides of equal length, so this later version includes equilateral triangles as a special case. Examples of isosceles triangles include the right isosceles triangle, the golden triangle, the double pyramid, and the faces of some Catalan solids.
According to the Question:
Let, this be figure of a question.
AD is altitude on BC.
In an isosceles triangle altitude, median and angle bisector on non equal sides are same line.
So, AD is also a median.
So, D is midpoint of BC,
⇒ BD = CD
Given that:
AB= AC
And, the common side:
AD= AD
So, by SSS test
ΔABD≅ΔACD.
Congruence test used is SSS
We know that corresponding sides and angles of congruent triangles are equal.
So, CD=BD
And ∠C=∠B
Complete Question:
ΔABC is isosceles with AB=AC. Also, AD⊥BC meeting BC in D. Are the two triangles ABD and ACD congruent? State in symbolic form. Which congruence condition do you use? Which side of ΔADC equals BD? Which angle of ΔADC equals ∠B?
Learn more about Isosceles triangle:
https://brainly.com/question/26852648
#SPJ4