Answer:
B. Triangles are similar if two corresponding angles in each triangle are the same measure.
Step-by-step explanation:
If two pairs of corresponding angles are congruent, then that makes the triangles similar to each other, by the Angle-Angle Similarity Postulate.
* This is definitely a genuine statement!
I am joyous to assist you anytime.
4. Which of the two figures below has the lesser volume?
5. Which of the two figures below has the greater volume?
Answer:
cylinder has greater volume
Diego's sister is twice his age minus 9 years. She is also as old as half the sum of the ages of Diego and both of his 12-year-old twin brothers. Write and solve an equation to find the ages of Diego and his sister.
Answer:
Diego is 14 years old.
Sister is 19
Step-by-step explanation:
x = Diego's age
x + 24
2x-9 = 2
First to get rid of the fraction we multiply each side by 2
2(2x-9) = 2((x+24)/2)
4x-18 = x+24
The we isolate x
4x-18 = x+24
-x+18 -x+18
3x = 42 Now we divide each side 3
3 3
x = 14
So Diego is 14
Now we can solve for his sister. We can use one of the two equations from earlier to do this.
Plug 14 in for x and then solve for his sister
2(14)-9
28-9
19
His sister is 19
Answer:
Diego's age is 14 years.
His sister's age is 19 years.
Step-by-step explanation:
Let d represent Diego's age.
We have been given that Diego's sister is twice his age minus 9 years.
The age of Diego's sister would be [tex]2x-9[/tex].
We are also told that she is also as old as half the sum of the ages of Diego and both of his 12-year-old twin brothers. We can represent this information in an equation as:
[tex]2x-9=\frac{x+12+12}{2}[/tex]
Let us solve for x:
[tex]2x-9+9=\frac{x+24}{2}+9[/tex]
[tex]2x=\frac{x+24}{2}+\frac{2*9}{2}[/tex]
[tex]2x=\frac{x+24}{2}+\frac{18}{2}[/tex]
[tex]2x=\frac{x+24+18}{2}[/tex]
[tex]2x=\frac{x+42}{2}[/tex]
[tex]2*2x=\frac{x+42}{2}*2[/tex]
[tex]4x=x+42[/tex]
[tex]4x-x=x-x+42[/tex]
[tex]3x=42[/tex]
[tex]\frac{3x}{3}=\frac{42}{3}[/tex]
[tex]x=14[/tex]
Therefore, Diego's age is 14 years.
[tex]\text{His sister's age}=2x-9[/tex]
[tex]\text{His sister's age}=2(14)-9[/tex]
[tex]\text{His sister's age}=28-9[/tex]
[tex]\text{His sister's age}=19[/tex]
Therefore, his sister's age is 19 years.
Using the numbers -4, 10, 8, 2, -3, -5, create two expressions that
equal 6.
The two expressions should be [tex]-4 \div 2 + 8 = 6\ and\ (10 \times -3) \div -5 = 6[/tex].
Given that,
The numbers are -4, 10, 8, 2, -3, -5.We need to develop two expressions that are equivalent to 6.Based on the above information, the calculation is as follows:
[tex]-4 \div 2 + 8 = 6\[/tex]
6 = 6
And,
[tex](10 \times -3) \div -5 = 6[/tex]
6 = 6
Therefore we can conclude that the two expressions should be [tex]-4 \div 2 + 8 = 6\ and\ (10 \times -3) \div -5 = 6[/tex].
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Two expressions using the given numbers that equal 6 are: Expression 1: 10 - 2 - (-3) + (-5) and Expression 2: 10 - 2 + 8 - (-4) - 5. The calculations are done using the order of operations (PEMDAS).
Explanation:The task is to create two mathematical expressions using the numbers -4, 10, 8, 2, -3, and -5, which result in 6. We can accomplish this by utilizing basic arithmetic operations such as addition, subtraction, multiplication, or division. The important thing is making sure all operations adhere to the Order of Operations, also known as PEMDAS (Parentheses, Exponents, Multiplication and Division, and Addition and Subtraction). Here are the two ways you could form expressions:
Expression 1: 10 - 2 - (-3) + (-5). The calculation goes as follow: 10 minus 2 equals 8, then we subtract -3 which is the same as adding 3, so 8 plus 3 equals 11, and finally we subtract 5 to get 6.Expression 2: 10 - 2 + 8 - (-4) - 5. Similarly, you calculate 10 minus 2 equals 8, plus 8 equals 16, add -4 (which is the same as subtracting 4) results in 12, and subtracting 5 gives us 6.Learn more about Mathematical Expressions here:https://brainly.com/question/30350742
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Add the following
(This is just a filler so i can post this)
Answer:
9/10
Step-by-step explanation:
You find the lowest common denominator which is 56 and then, you multiply each numerator by the opposite denominator (3 times 7 and 3 times 8) after that you should get 5 45/50 then you simplify it to get 9/10
solve for b a + b/c = pq
Answer:
b = c(pq - a)
Step-by-step explanation:
All we need to do is isolate (solve for) the variable b
a + b/c = pq
Subtract a from both sides
b/c = pq - a
Multiply by c on both sides
b = c(pq - a)
Answer:
b = c(pq - a)
Step-by-step explanation:
b. You used 13 gallons when you traveled 342 miles. How many miles did you
travel per gallon?
Answer:
26.307 miles per gallon
Step-by-step explanation:
Divide the miles traveled by the number of gallons used.
In this case, divide 342 by 13 to get the answer of 26.307 miles per gallon.
what is 2.3 round to the nearest tenth
Answer: 2.0 or 2
Step-by-step explanation:
How To Round: 1-4 round down. 5-10 round up.
I hope this helps you!
Answer: 2.0 or just 2
Step-by-step explanation: 3 is lower than 5 so you have to make it a zero
Solve this equation use pemdas 4x(5+8•2)
Answer:84
Step-by-step explanation:
p = perentsis acccording to pemdas you have to multiply then 8x2 =16 +5=21
21 x4 = 84
The sum of Chris and Mike’s scores on a math quiz is 39. Mike’s score is twice the sum of Chris’ score and 3. Find each student’s quiz score.
Answer: c=11, m=28
Step-by-step explanation:
c= Chris's score
m= Mike's score
c+m=39 we know from the equation that their scores
add up to 39, so this equation is a good starting
point.
c+2(c+3)=39 we also know that Mike's score is twice the sum of Chris's
score and 3 so we can substitute that in for his score.
now we can solve.
c+2c+6=39 distribute
3c+6=39 combine like terms
-6 -6
3c=33 addition property of equality
÷3 ÷3
c=11 multiplication property of equality
Now that we know Chris's score, we simply substitute that number in in our simple equation for earlier to find Mike's score.
11+m=39 substituted in 11 for c
-11 -11
m=28 addition property of equality
There you go! Don't worry, I had a lot of trouble with these types of problems too. That's why I'm so good at them now Hope this helps!
What is the difference between a day and a line segment
Hello!
I do believe you meant to say:
"What is the difference between a ray and a line segment?"
The difference between a ray and a line segment is:
A ray has one endpoint and continues in one direction. a ray is infinite
A line segment has two endpoints. a line segment is finite
I hope this helps, and have a nice day!
Solve the inequality for x 24x > 18(4x – 6) – 30
Answer:
The required solution is: [tex]x<\frac{23}{8}[/tex] or x<2.875 or [tex]\mathrm{Interval\:Notation:}&\:\left(-\infty \:,\:\frac{23}{8}\right)\end{bmatrix}[/tex]
Step-by-step explanation:
Consider the provided inequity.
[tex]24x>18(4x-6)-30[/tex]
We need to solve the above inequity of x.
Open the parentheses.
[tex]24x>18\times 4x-18\times 6-30[/tex]
[tex]24x>72x-108-30[/tex]
[tex]24x>72x-138[/tex]
Subtract 72x from both sides.
[tex]24x-72x>72x-138-72x\\-48x>-138[/tex]
Multiply both sides by -1 and reverse the inequality.
[tex]\left(-48x\right)\left(-1\right)<\left(-138\right)\left(-1\right)[/tex]
[tex]48x<138[/tex]
Divide both side by 48.
[tex]x<\frac{23}{8}[/tex]
Hence, the required solution is: [tex]x<\frac{23}{8}[/tex] or x<2.875 or [tex]\mathrm{Interval\:Notation:}&\:\left(-\infty \:,\:\frac{23}{8}\right)\end{bmatrix}[/tex]
42 students arrived at the school dance after it started. in all 78 students attended. write and solve an equation to find how many students arrived at the dance before it started. plz help right when you see it!!!
Answer:
The answer is 36
Step-by-step explanation:
we know 42 students arrived after the dance started and 78 arrived in total. You have to subtract 42 from 78. how I remember this: part+part=whole whole-part=part
Find the distance between the points (-5, 0) and (-4,1).
01
O2
02.12
Answer:
[tex]\sqrt{2}[/tex] ≈ 1.414
Step-by-step explanation:
Calculate the distance d using the distance firmula
d = √ (x₂ - x₁ )² + (y₂ - y₁ )²
with (x₁, y₁ ) = (- 5, 0) and (x₂, y₂ ) = (- 4, 1)
d = [tex]\sqrt{(-4+5)^2+(1-0)^2}[/tex]
= [tex]\sqrt{1^2+1^2}[/tex]
= [tex]\sqrt{2}[/tex] ≈ 1.414 ( to 3 dec. places )
Factor -4x + 24 - 4x^2
Answer:
- 4(x + 3)(x - 2)
Step-by-step explanation:
Given
- 4x + 24 - 4x² ← rewrite in standard form, that is
- 4x² - 4x + 24 ← factor out - 4 from each term
= - 4(x² + x - 6) ← factorise the quadratic
Consider the factors of the constant term (- 6) which sum to give the coefficient of the x- term (+ 1)
The factors are + 3 and - 2, since
3 × - 2 = - 6 and 3 - 2 = + 1, hence
x² + x - 6 = (x + 3)(x - 2), and
4x² - 4x + 24 = - 4(x + 3)(x - 2)
Sadie has a cousin Nanette in Germany. Both families recently bought new cars and the two girls are comparing how fuel efficient the two cars are. Sadie tells Nanette that her family’s car is getting 42 miles per gallon. Nanette has no idea how that compares to her family’s car because in Germany mileage is measured differently. She tells Sadie that her family’s car uses 6 liters per 100 km. Which car is more fuel efficient? Please explain everything
Sadie’s family’s car is slightly more fuel efficient than Nanette’s family’s car.
Answer:
Sadie's car is more fuel efficient.
Step-by-step explanation:
Consider the provided information.
For comparison both quantity should be same. So convert miles per gallon into kilometers per liter.
Sadie tells her family's car is getting 42 miles per gallon.
To convert miles per gallon into liters per km use the formula:
1 miles per gallon = 0.425144 kilometers per liter
Multiply both the sides by 42.
1×42 miles per gallon = 0.425144×42 kilometers per liter
42 miles per gallon = 17.856 kilometers per liter
That means Sadie's car millage is 17.856 kilometer per liter.
Nanette tells Sadie that her family’s car uses 6 liters per 100 km.
6 Liters = 100 km
Divide both sides by 6.
1 Liters = 16.66..
That means Nanette's car millage is approximately 16.67 kilometer per liter.
Hence, Sadie's car is more fuel efficient.
A single little brown bat can eat up to 1,000 mosquitoes in a single hour.express in scientific notation how many mosquitoes a little brown bat might eat in 10.5
Answer: 1.05 ·10⁴ mosquitoes
Step-by-step explanation:
1,000mosquitoes/hour x 10.5hours =10,500 mosquitoes
Now you have to move decimal point as many space as needed left so that the number is less than ten.
10,500 ↪ 1.0500 because I moved decimal point 4 spaces, its 10⁴
Answer: 1.05 ·10⁴ mosquitoes
[tex]\textit{\textbf{Spymore}}[/tex]
Use A=12bh to find the height of a triangle that has an area of 180 in^2 and a base of 20 in.
Answer:
18 in
Step-by-step explanation:
A=1/2 bh
180 = (20* h)/2
180*2 = 20*h
(180*2)/20 = h
360/20 = h
18 in = h
What is the differencebetween a terminating decimal and repeating decimal
Final answer:
A terminating decimal has a finite number of decimal places, whereas a repeating decimal has one or more digits that repeat infinitely. Trailing zeros in a decimal number are significant when they come after a decimal point, affecting precision in arithmetic operations.
Explanation:
The difference between a terminating decimal and a repeating decimal lies in their decimal expansions. A terminating decimal has a finite number of decimal places; once you write out all the decimal places, the number ends. For example, 0.5 or 0.75 are terminating decimals because they stop after one or two decimal places, respectively. On the other hand, a repeating decimal has one or more digits that repeat infinitely. For instance, 0.333... (where the 3s go on forever) is a repeating decimal. The bar above the digit(s) indicates that it repeats indefinitely.
In the context of significant figures and rounding, trailing zeros in a decimal number are significant when a decimal point is present. This precision is important in arithmetic operations. When rounding off in addition or subtraction, the number of decimal places in the result should match the number in the expression with the fewest decimal places. The same concept of precision applies to multiplication and division, where the number of significant figures must align with the term having the least amount of them.
7. Find the product (3x + 2)(4x2 – 5x + 7).
Answer:
12x³ - 7x² + 11x + 14
Step-by-step explanation:
Each term in the second factor is multiplied by each term in the first factor, that is
3x(4x² - 5x + 7) + 2(4x² - 5x + 7) ← distribute both parenthesis
= 12x³ - 15x² + 21x + 8x² - 10x + 14 ← collect like terms
= 12x³ - 7x² + 11x + 14
3(d-8)-5=9(d+2)+1 need help
Answer:
d=-8
Step-by-step explanation:
1) Use the Distributive property on the left side of the equation:
3d-24-5=9(d+2)+1
2) Use the Distributive property on the right side of the equation:
3d-24-5=9d+18+1
3) Combine alike terms:
3d-29=9d+19
4) add a 29 to both sides:
3d=9d+48
5) Subtract a 9d from both sides:
-6d=48
6) Divide both sides by -6:
d=-8
Carl travelled the 1900 km from his home
in Eastern Ontario to Winnipeg. He
travelled by bus to Toronto at an average
Speed of 60 km/h and then flew to
Winnipeg at an average speed of
100 km/h. His total travelling time was
7H. How many kilometres did he travel
by bus? How far did he travel by airplane?
Carl travelled 840 km by bus and 1060 km by airplane.
Explanation:To solve this problem, we can use the formula:
Distance = Speed x Time
Let x be the distance travelled by bus. Since the distance travelled by airplane is 1900 km - x, we can set up the equation:
x/60 + (1900 - x)/100 = 7
Solving for x, we get x = 840 km. Therefore, Carl travelled 840 km by bus and 1060 km by airplane.
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Carl traveled 420 km by bus and 1480 km by airplane.
Explanation:To solve this problem, we need to use the formula:
Distance = Speed x Time
We know that the total traveling time was 7 hours, and the distances traveled by bus and airplane add up to 1900 kilometers. Let's use the formula to find the distance traveled by bus:
Distance by bus = Speed by bus x Time by bus
Since we know the average speed by bus is 60 km/h, we can substitute into the equation:
Distance by bus = 60 km/h x Time by bus
By rearranging the equation, we can solve for Time by bus:
Time by bus = Distance by bus / Speed by bus
And since the total traveling time was 7 hours, we can substitute this value into the equation:
7 hours = Distance by bus / 60 km/h
Multiplying both sides of the equation by 60 km/h, we get:
7 hours x 60 km/h = Distance by bus
Distance by bus = 420 km
Now that we know the distance traveled by bus, we can find the distance traveled by airplane:
Distance traveled by airplane = Total distance - Distance by bus
Substituting the given values, we get:
Distance traveled by airplane = 1900 km - 420 km
Distance traveled by airplane = 1480 km
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simplify by distributing and combining like terms
Answer: -9x + 24
Step-by-step explanation:
To do this, we need to multiply each term by -3
So -3(3x -8) turns into
-9x + 24
That’s the answer!
If the outliers are not included in the data set below, what is the mean of the data set?
42, 43, 46, 48, 57, 60, 96, 59, 38, 68, 29 (2 points)
a 47
b 48
c 49
d 52
The mean of the given data set, after removing the outlier, is 49.
Explanation:To determine the mean of a data set, outliers (extremely high or low values) must first be identified and removed. Looking at the given data set: 42, 43, 46, 48, 57, 60, 96, 59, 38, 68, 29; the number 96 is an outlier as it is remarkably higher than the other values.
After removing the outlier, the rest of the data set becomes: 42, 43, 46, 48, 57, 60, 59, 38, 68, 29.
To find the mean (average), sum all these numbers and divide by the count of numbers. The total sum of these numbers is 490, and there are 10 numbers. Therefore, the mean is 49 (490 divided by 10).
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The mean of the data set after removing the outliers is c. 49
How to determine the mean if the outliers are not includedFrom the question, we have the following parameters that can be used in our computation:
The data set
Where, we have
42, 43, 46, 48, 57, 60, 96, 59, 38, 68, 29
The outlier in the data set is 96
If we remove them, we will have the following data set:
42, 43, 46, 48, 57, 60, 59, 38, 68 and 29
The mean of this data set is calculated as follows:
mean = (42 + 43 + 46 + 48 + 57 + 60 + 59 + 38 + 68 + 29) / 10 = 49
Hence, the mean without outliers is 49
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I need help with this
#3 is 40 degrees Clockwise.
On the surface, it seems easy. Can you think of the integers for x, y, and z so that x³+y³+z³=8? Sure. One answer is x = 1, y = -1, and z = 2. But what about the integers for x, y, and z so that x³+y³+z³=42?
That turned out to be much harder—as in, no one was able to solve for those integers for 65 years until a supercomputer finally came up with the solution to 42. (For the record: x = -80538738812075974, y = 80435758145817515, and z = 12602123297335631. Obviously.)
Answer:
Well ,lets see∉ if you add theose numbers togetherФ it maybe it he answe ris 4=67 *64 ---4 67x54 5xe4t4 6xStep-by-step
Answer:
if i see them it my be 5x6x7=76 6(*)665_+65x673 then add those toether then sub em 56-78-463=738
Step-by-step explanation:
Plz help me show the work plz
Answer:
all work is shown and pictured
BRAINLIEST PLUS 100 POINTS
Please show full working out and draw a neat diagram for question five and also note that this is trigonometry
Correct answers only please ;)
Thank you in advance :)
The exact answer is 4√2 + 4
The decimal answer is 9.6568 ( round the answer as needed.)
See the attached picture:
Based on the example above, identify the first operation needed to solve the following equation.
4m/3 = 8
Answer:
See below.
Step-by-step explanation:
I can't see any example but what I would do is first multiply both sides by 3.
4m/3 = 8
4m/3 * 3 = 8 * 3
4m = 24.
The first operation in solving the equation 4m/3 = 8 is multiplying both sides of the equation by 3, which eliminates the fraction and isolates the variable 'm'. After further simplification, the solution to the equation is m = 6.
Explanation:To solve the equation 4m/3 = 8, the first operation we need to perform is to isolate the variable on one side of the equation. We can do this by multiplying both sides of the equation by 3. This cancels out the fraction on the left side, allowing us to solve for 'm'.
In step by step:
Multiply both sides of the equation by 3: (4m/3) * 3 = 8 * 3.This simplifies to 4m = 24.Finally, we divide both sides by 4 to solve for 'm': m = 24/4.m = 6.So, "the solution to the equation is m = 6".
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what’s the square root of 13 to the nearest integer
Answer:
4
Step-by-step explanation:
First off, integers are Whole Numbers (1,2,3,4, etc), so we are rounding the answer to the nearest whole number.
The square root of lets just say 25 means you are finding a number that multiplied by itself will equal 25 (the answer is 5).
Now for 13, there is no perfect square, however the closest whole number that multiplied by itself to 13 is 4.
4*4= 16
3*3=9
5*5=25
As you can see above 4 is the closest number to 13.
Now, the ACTUAL value of the square root of 13 is 3.60555128, but we are rounding up to the nearest whole number which is 4 :)
The square root of 13 is approximately 3.6055, but to the nearest integer (whole number), it's 4.
Explanation:The question asks for the square root of 13. First, it's important to understand what a square root is. In simple terms, the square root of a number is a value that, when multiplied by itself, gives the original number. So, if you take the square root of 16, for example, it's 4 because 4 multiplied by 4 equals to 16. Now, 13 is not a perfect square, so its square root is not a whole number. If you calculate the square root of 13, you'll get an answer somewhere around 3.6055. However, the question asks for the nearest integer. An integer is a whole number, so we're looking for the whole number closest to 3.6055. In this case, it's 4. So, the square root of 13, to the nearest integer, is 4.
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figure B is a scaled copy of figure A. What is the scale factor from Figure A to Figure B?
Answer:
2
Step-by-step explanation:
it is 2 times as large because a is 3:3 and b is 6:6
3x2=6
so therefore your answer is 2