Answer:10times
Step-by-step explanation:
Answer:
10
Step-by-step explanation:
More than 450 students went on a field trip. Ten buses were filled and 5 more students traveled in a car. How many students were on each bus?
Answer:a total of 45 students per bus
Step-by-step explanation: 450-5= 445
445/10= 44.5
a total of 45 students per bus
If s(x) = 2x2 + 3x - 4, and t(x) = x + 4 then s(x) · t(x) =
Answer:
[tex]\large\boxed{s(x)\cdot t(x)=2x^3+11x^2+8x-16}[/tex]
Step-by-step explanation:
[tex]s(x)=2x^2+3x-4,\ t(x)=x+4\\\\s(x)\cdot t(x)\\\\\text{use the distributive property:}\ a(b+c)=ab+ac\\\\s(x)\cdot t(x)=(2x^2+3x-4)(x+4)\\\\=(2x^2+3x-4)(x)+(2x^2+3x-4)(4)\\\\=(2x^2)(x)+(3x)(x)+(-4)(x)+(2x^2)(4)+(3x)(4)+(-4)(4)\\\\=2x^3+3x^2-4x+8x^2+12x-16\\\\\text{combine like terms}\\\\=2x^3+(3x^2+8x^2)+(-4x+12x)-16\\\\=2x^3+11x^2+8x-16[/tex]
Final answer:
The product of the functions [tex]s(x) = 2x^2 + 3x - 4[/tex] and t(x) = x + 4 is obtained by multiplying each term of s(x) with each term of t(x), resulting in [tex]2x^3 + 11x^2 + 8x - 16[/tex].
Explanation:
To find the product of s(x) and t(x), given [tex]s(x) = 2x^2 + 3x - 4[/tex], and t(x) = x + 4, we use the distributive property to multiply each term in s(x) by each term in t(x). The steps are as follows:
Multiply [tex]2x^2[/tex] (the first term of s(x)) by x (the first term of t(x)) to get [tex]2x^3[/tex].Multiply [tex]2x^2[/tex] by 4 (the second term of t(x)) to get [tex]8x^2[/tex].Multiply 3x (the second term of s(x)) by x to get [tex]3x^2[/tex].Multiply 3x by 4 to get 12x.Multiply -4 (the third term of s(x)) by x to get -4x.Multiply -4 by 4 to get -16.Adding up all these products:
[tex]2x^3 + (8x^2 + 3x^2) + (12x - 4x) - 16[/tex]
Simplifying:
[tex]2x^3 + 11x^2 + 8x - 16[/tex]
Thus, the product s(x) · t(x) is [tex]2x^3 + 11x^2 + 8x - 16[/tex]
solve equation x(x-2) (x- 1) =0
Answer:
x = 0 or x = 1 or x = 2Step-by-step explanation:
The product is 0 if one of the factors is 0.
[tex]x(x - 2)(x - 1) = 0\iff x=0\ \vee\ x-2=0\ \vee\ x-1=0\\\\(1)\ x=0\\\\(2)\ x-2=0\qquad\text{add 2 to both sides}\\.\qquad x=2\\\\(3)\ x-1=0\qquad\text{add 1 to both sides}\\.\qquad x=1[/tex]
What is the relationship between the sides of a right triangle?
Answer:
⇒[tex](Base)^2 + ( Perpendicular)^2 = (Hypotenuse)^2[/tex] is the required relationship.
Step-by-step explanation:
Let us assume, the given right angled triangle is ΔPQR.
Here. PQ = Perpendicular of the triangle.
QR = Base of the triangle.
PR = Hypotenuse of the triangle.
Now, PYTHAGORAS THEOREM states:
In a right-angled triangle, the square of the hypotenuse side is equal to the sum of squares of the other two sides“
⇒[tex](Base)^2 + ( Perpendicular)^2 = (Hypotenuse)^2[/tex]
Hence in ΔPQR: [tex](QR)^2 + ( PQ)^2 = (PR)^2[/tex]
And the above expression is the required relationship between the sides of a right triangle.
The sides of a right triangle have a specific relationship given by the Pythagorean Theorem, which states a² + b² = c², where a and b refer to the lengths of the sides and c refers to the length of the hypotenuse. Additionally, the sides have relationships to the angles of the triangle expressed through trigonometric functions.
Explanation:The relationship between the sides of a right triangle is given by the Pythagorean Theorem which was demonstrated by the ancient Greek philosopher, Pythagoras. This theorem states that the square of the length of the hypotenuse (the side opposite the right angle) is equal to the sum of the squares of the lengths of the other two sides. In mathematical terms, if the lengths of the sides are a, b, and c (where c represents the length of the hypotenuse), then the relationship can be represented as a² + b² = c².
Moreover, the sides of a right triangle also have specific relationships to the measures of the angles of the triangle, which are expressed through the trigonometric functions sine, cosine, and tangent. For example, for an angle in a right triangle, the sine is the length of the opposite side divided by the length of the hypotenuse, the cosine is the length of the adjacent side divided by the hypotenuse, and the tangent is the length of the opposite side divided by the adjacent side.
Learn more about Pythagorean Theorem here:https://brainly.com/question/28361847
#SPJ12
In which step to the student first make an error and what is the correct step
Answer:
step 2 i believe
Step-by-step explanation:
hope this helps
Answer:
The answer is B
Step-by-step explanation:
Hope this helps :))
A random sample is used to estimate the mean time required for caffeine from products such as coffee or soft drinks to leave the body after consumption. A 95% confidence interval based on this sample is: 5.6 hours to 6.4 hours (for adults).
Answer:
Sample size n = 96.04
Explanation:
Given the interval is 5.6 hours to 6.4 hours
Let x be the midpoint, then x = (5.6+6.4)/2 = 6
Let E be the radius, then E = (6.4-5.6)/2 = 0.8/2 = 0.4
σ = 2 hours; as standard deviation is given and α = 0.05
Therefore, the sample size is:
[tex]n=\left(\frac{1.96 * 2}{0.4}\right)^{2}=96.04[/tex]
The student's question pertains to a 95% confidence interval estimate of the mean time required for caffeine to leave the body after consumption, which was found to be 5.6 to 6.4 hours in adults. This suggests that if the study were conducted multiple times, the mean time for caffeine to leave the body would lie within this range in 95% of those studies. The influence of variances in individual's metabolism, body mass, and general health can impact the range of the confidence interval.
Explanation:The subject of this discussion revolves around statistics and more specifically around the concept of confidence intervals. In the provided context, researchers conducted a study to estimate the mean time it takes for an adult body to process and remove caffeine. They found, with a 95% confidence interval, that this time lies between 5.6 hours and 6.4 hours.
This means that if the researchers were to conduct this study multiple times, in 95% of those studies, the mean (average) time for caffeine to leave the body would lie within that given range (5.6 to 6.4 hours). This is a common method in statistics and is used as a way to give an estimate about where the actual (population) value might lie in the context of sampling error.
However, it's important to note that variance in the sample population can impact the confidence interval. Individual differences such as metabolism rate, body mass, and overall health can influence how quickly a person processes caffeine, which may result in a wider confidence interval.
Learn more about Confidence Intervals here:https://brainly.com/question/34700241
#SPJ3
ASAP HELP FOR QUESTION 4 ASAP
Answer:
convert 17 meters into feet and then write it down to teh nearest 10thof a foot
Step-by-step explanation:
Find the length of PQ if PQ parallel to BC and PQ is a midsegment of ABC
Answer:
4.924 units.
Step-by-step explanation:
See the attached diagram.
If P is the midpoint of AB and Q is the midpoint of AC, then PQ is parallel to BC and the length of PQ will be half of BC.
Now, the coordinates of B are (1,1) and that of C is (10,-3).
Therefore the length of BC is [tex]\sqrt{(10 - 1)^{2} + (- 3 - 1)^{2}} = 9.848[/tex] units (Approximate)
Therefore, the length of PQ = 0.5 × 9.848 = 4.924 units. (Answer)
We know that the distance between two given points ([tex]x_{1},y_{1}[/tex]), and ([tex]x_{2},y_{2}[/tex]) is given by the formula
[tex]\sqrt{(x_{1} - x_{2})^{2} + (y_{1} - y_{2})^{2}}[/tex]
please help!!! due tonight
Answer:
[tex]A=10^0[/tex]
Step-by-step explanation:
Number 2.247 has 2 in ones place, 2 in tenths place, 4 in hundredths place and 7 in thousandths place.
This means you can rewrite this number as
[tex]2.247=2\times 1+2\times 0.1+4\times 0.01+7\times 0.001\\ \\2.247=2\times 10^0+2\times \dfrac{1}{10^1}+4\times \dfrac{1}{10^2}+7\times \dfrac{1}{10^3}[/tex]
So,
[tex]A=10^0\\ \\B=\dfrac{1}{10^1}\\ \\C=\dfrac{1}{10^2}\\ \\D=\dfrac{1}{10^3}[/tex]
How many inches are equivalent to 2 meters?
Round your answer to the nearest tenth.
The measurement 2 meters is equivalent to
inches.
To convert 2 meters to inches, you multiply by the conversion factor of approximately 39.37, resulting in 78.7 inches when rounded to the nearest tenth.
The measurement 2 meters is equivalent to
78.7 inches.
To convert meters to inches, we know that 1 meter is approximately 39.37 inches. Therefore, 2 meters would be equal to 2 x 39.37 = 78.74 inches. Rounding to the nearest tenth, this equals 78.7 inches.
The following ratios form a proportion. 5/18 = 10/90
True or False
13 pts.
Answer:
False
Step-by-step explanation:
Answer:
True
Step-by-step explanation:
What is the following product? ^3 square root 5 * square root 2
Answer:
The answer is B
What is the solution to this equation x/-3=6
Answer:
[tex]\frac{x}{-3} =6\\x=-18[/tex]
x= -18
Answer: X = -18
Step-by-step explanation: In this problem, notice that x is being divided by -3 so to get x by itself, we need to multiply both sides of the equation by -3.
Notice that on the left side, the -3 and -3 cancel each other out so we're just left with x.
On the right side, we have 6 × -3 which is -18 so X = -18.
Finally, we can check our answer by plugging a -18 back into the original equation.
So we have -18 ÷ -3 = 6, which is a true statement which means that our answer is correct.
Image provided.
The length of a rectangle is 1.3 feet, and the width is 2.1 feet. What is the perimeter
[tex]\frac{x^{\frac{5}{6} } }{x^{\frac{1}{6} } }[/tex]
Answer:
x^2/3
Step-by-step explanation:
(x^5/6)/(x^1/6)=x^(5/6-1/6)=x^4/6
simplify 4/6, you get 2/3.
Kay has 28 coins which includes nickels and dimes if the total is 2.35$, how many of each coin does Kay have?
Answer:9 nickels and 19 dimes.
Step-by-step explanation:
Let [tex]n[/tex] be the number of nickels Kay has.
Let [tex]d[/tex] be the number of dimes Kay has.
Value of [tex]1[/tex] nickel is $[tex]0.05[/tex]
Value of [tex]n[/tex] nickels is $[tex]0.05n[/tex]
Value of [tex]1[/tex] dime is $[tex]0.1[/tex]
Value of [tex]d[/tex] nickels is $[tex]0.1dn[/tex]
Given that Kay has a total of [tex]28[/tex] coins.
So,[tex]n+d=28[/tex] ...(i)
Given that Kay has a total value of $[tex]2.35[/tex]
So,[tex]0.05n+0.1d=2.35[/tex] ...(ii)
Using (i) and (ii),
[tex]0.05n+0.1(28-n)=2.35\\0.05n+2.8-0.1n=2.35\\2.8-2.35=0.05n\\0.45=0.05n\\n=9[/tex]
[tex]d=28-n=28-9=19[/tex]
Write if it’s SSS SAS ASA Or HL for these proofs
Answer: 3.sas
4.sas
5.sas
6.asa
7.sas
8. not possible
9. hl
Step-by-step explanation:
A car dealership increased the price of a certain car by 12% The original price was $46,500
Answer:
$52080
Step-by-step explanation:
46, 500 + (.12×46,500) =52080
Algebra 2! please help!
What is the result of dividing x3−4 by x + 2?
x2−2x+4+4x+2
x2−2x+4+12x+2
x2−2x+4−12x+2
x2−2x+4−4x+2
Answer:
Choice C)
x^2 - 2x + 4 - 12/(x+2)
[tex]x^2 - 2x + 4 - \frac{12}{x+2}[/tex]
====================================================
Explanation:
To see how I got that answer, I have provided two attached images below. One of them shows the polynomial long division. The other shows synthetic division. Both are valid options to get to the same answer.
For each method, I used 1x^3 + 0x^2 + 0x - 4 in place of x^3 - 4 so that the proper terms could align.
please help me! i don't know how to work this out.
the n th term is n^2+20 work out the first three terms of the sequence. how many terms in the sequence are less than 50
Answer:
21, 24, 29
5
Step-by-step explanation:
The first term is when n = 1.
(1)² + 20 = 21
The second term is when n = 2.
(2)² + 20 = 24
The third term is when n = 3.
(3)² + 20 = 29
To find how many terms are less than 50, set n² + 20 equal to 50 and solve for n:
n² + 20 = 50
n² = 30
n ≈ 5.477
Rounding down, n = 5 is the last term that is less than 50.
Therefore, there are 5 terms in the sequence that are less than 50.
Select proportional or not proportional to correctly classify each pair of ratios.
16/36 and 4/9
16/36=4/9
(16)(9)=(36)(4) cross multiply
144=144 proportional
After cross-multiplying the ratios 16/36 and 4/9 and finding that both products are equal (144), it is determined that these ratios are proportional.
Explanation:The question asks to classify the pair of ratios 16/36 and 4/9 as either proportional or not proportional. We can determine if two ratios are proportional by cross-multiplying and checking if the products are equal. In this case, for the ratios 16/36 and 4/9, we cross-multiply:
(16 × 9) = 144(36 × 4) = 144Since the products are equal (144 = 144), this confirms that the ratios 16/36 and 4/9 are indeed proportional.
The lunch lady has 8 pounds of lasagna. If she makes 1/5-pound servings using this amount of lasagna, how many servings can she make?
Answer:
40
Step-by-step explanation:
8 / (1/5)
When dividing fractions, the second fraction just flips upside down. Then you just multiply.
So it's now 8 * 5 = 40
8 is 25% of what number?
Answer: The answer is 32
Answer:
32
Step-by-step explanation:
25%=0.25
8/0.25=32
4×=32 how do i solve this
Answer:
x=8
Step-by-step explanation:
You divide both sides by 4 to get x alone.
Answer:
x = 8
Step-by-step explanation:
4x divied by 4 is x. 32 divided by 4 is 8.x = 8Determine the missing measures.
38, a=
Answer:
a = 6 units
[tex]c= 6\sqrt{2}\ units[/tex]
Step-by-step explanation:
Given:
Let Labelled the diagram first
Δ ABC right angle at ∠ C = 90°
∠ B = 45 °
AB = c
BC = a
AC = 6
To Find:
a =?
c =?
Solution:
In Δ ABC
∠ A + ∠ B + ∠ C = 180°.....{Angle Sum Property of a Triangle}
∴ ∠ A + 45 + 90 = 180°
∴ ∠ A = 180 - 135
∴ ∠ A = 45°
Now ∠ A = ∠ B = 45° in Δ ABC
∴ Δ ABC is an Isosceles Triangle.
∴ Two sides are equal of an Isosceles Triangle.
∴ AC = BC = a = 6 units
Now for c we use Pythagoras theorem
[tex](\textrm{Hypotenuse})^{2} = (\textrm{Shorter leg})^{2}+(\textrm{Longer leg})^{2}[/tex]
Substituting the given values we get
c² = a² + 6²
c² = 6² + 6²
c² = 36 + 36
c² = 72
∴ c = ±√72
as c cannot be negative
∴ [tex]c = 6\sqrt{2}\ units\\[/tex]
a = 6 units
[tex]c= 6\sqrt{2}\ units[/tex]
The two-way table shows the number of houses on the market in the Castillos’ price range. A 6-column table has 4 rows. The first column has entries 1 bathroom, 2 bathrooms, 3 bathrooms, total. The second column is labeled 1 bedroom with entries 67, 0, 0, 67. The third column is labeled 2 bedrooms with entries 21, 6, 18, 45. The fourth column is labeled 3 bedrooms with entries 0, 24, 16, 40. The fifth column is labeled 4 bedrooms with entries 0, 0, 56, 56. The sixth column is labeled Total with entries 88, 30, 90, 208. What is the probability that a randomly selected house with 2 bathrooms has 3 bedrooms
Answer:
.8
Step-by-step explanation:
because 24/30
The probability that a randomly selected house with 2 bathrooms
has 3.
We have given that,
The two-way table shows the number of houses on the market in the Castillos’ price range.
A 6-column table has 4 rows.
The first column has entries 1 bathroom, 2 bathrooms and 3 bathrooms, in total.
The second column is labeled 1 bedroom with entries 67, 0, 0, 67.
The third column is labeled 2 bedrooms with entries 21, 6, 18, 45.
We are only considering the houses that have 2 bathrooms.
There are a total of 30 of these houses.
Out of these 30, 24 have 3 bedrooms.
What is the formula for probability?
The probability of an event can only be between 0 and 1 and can also be written as a percentage.
This makes the probability 24/30, which is 0.8.
Therefore, the probability that a randomly selected house with 2 bathrooms has 3.
To learn more about the probability visit:
https://brainly.com/question/25870256
#SPJ2
Lin is making a window covering for a window that has the shape of a half circle on top of a square of side length 3 feet. How much fabric does she need
Answer:
Lin needs 12.53 square feet of fabric
Step-by-step explanation:
we know that
The area of the window covering is equal to the area of the square plus the area of semicircle
step 1
Find the area of the square
The area of the square is equal to
[tex]A_1=b^{2}[/tex]
where
b is the length side of the square
we have
[tex]b=3\ ft[/tex]
substitute
[tex]A_1=3^{2}=9\ ft^2[/tex]
step 2
Find the area of semicircle
The area of semicircle is equal to
[tex]A_2=\frac{1}{2}\pi r^{2}[/tex]
The length side of the square is equal to the diameter of semicircle
so
[tex]r=3/2=1.5\ ft[/tex] ----> the radius is half the diameter
assume
[tex]\pi =3.14[/tex]
substitute
[tex]A_2=\frac{1}{2}(3.14)(1.5)^{2}[/tex]
[tex]A_2=3.53\ ft^2[/tex]
Adds the areas
[tex]A=A_1+A_2[/tex]
[tex]A=9+3.53=12.53\ ft^2[/tex]
therefore
Lin needs 12.53 square feet of fabric
Final answer:
Lin needs approximately 12.54 square feet of fabric for a window covering with a half-circle on top of a square, both with a side length of 3 feet. Calculating the areas of the square and the half-circle and summing them gives the total fabric required.
Explanation:
To calculate the amount of fabric Lin needs for the window covering with a half-circle on top of a square with a side length of 3 feet, we need to find the area of both the square and the half-circle and add them together. The area of the square is straightforward - since all sides are equal, the area is side × side, which is 3 feet × 3 feet = 9 square feet. For the half-circle, we first need to calculate the area of a full circle using the formula πr² (where π is pi, approximately 3.14159, and r is the radius of the circle). The diameter of the circle is the same as the side length of the square, which is 3 feet, making the radius 1.5 feet.
So, the area of a full circle is π × (1.5 feet)² = π × (2.25 square feet).
To find the area of the half-circle, we simply divide this by 2, resulting in π × 2.25 square feet / 2 = 3.53429174 square feet. Adding the area of the square and the half-circle gives us the total fabric needed: 9 square feet + 3.53429174 square feet = 12.53429174 square feet.
Therefore, Lin needs approximately 12.54 square feet of fabric for her window covering.
There are 12 girls and 14 boys in math class. The teacher puts all the students names in a hat and picks randomly. What is the probability the teacher picks 2 boys in a row?
Answer:
The probability of picking the first boyis 14/26 and the probability of picking another boy is 13/25. The combined probability is thus 14/26 x 13/25 = 7/25
Step-by-step explanation:
The probability the teacher picks 2 boys in a row is 7/13.
What is the probability?Probability can be defined as the ratio of the number of favourable outcomes to the total number of outcomes of an event.
We know that, probability of an event = Number of favorable outcomes/Total number of outcomes.
Given that, there are 12 girls and 14 boys in math class.
Here, total number of outcomes = 12+14
= 26
Number of favorable outcomes = 14
Now, probability = 14/26
= 7/13
Therefore, the probability the teacher picks 2 boys in a row is 7/13.
To learn more about the probability visit:
https://brainly.com/question/11234923.
#SPJ3
If the graph of f(x) = x is shifted up 9 units, what would be the equation of the new graph?
A. g(t) = 95(r)
B. g(x) = f(x) - 9
OC. g(x) = 9 – f(x)
D. g(t) = f(t) +9
D. g(x) = f(x) +9 is the right answer
Step-by-step explanation:
The shifting of graphs is mathematically denoted by adding or subtracting a number from the output or input.
When the graph is shifted up, a number is added to the functions's output
For example
For a function
f(x)
Shifting up is represented as g(x) = f(x)+b where b is a number
So,
Given function is:
f(x) = x
Shifting the graph 9 units upwards we will get
g(x) = f(x) + 9
Hence,
D. g(x) = f(x) +9 is the right answer
Keywords: Functions, Graphs
Learn more about graphs of functions at:
brainly.com/question/3614284brainly.com/question/3783529#LearnwithBrainly
Answer: D. g(x) = f(x) +9 is the right answer
Step-by-step explanation:
At the Idaho Humane Society there is a ratio of 9 cats 13 dogs . If there are a total of 66 cats and dogs how many are cats ?
Answer:
27 cats.
Step-by-step explanation:
The fraction of cats = 9 / (9 + 13) and dogs = 13 / ( 9 + 130
= 9/22 and 13/22
So the number of cats = (9/22) * 66
= 9 *3
= 27.
=