on the left side of the triangle, it says 10 cm, on the right side of the triangle, it says 18 cm, below the triangle, it says 15 cm. find the area of the triangle and answer this question is square cm.
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B=15
H=10
1/2(15)= 7.5
7.5 x 10= 75
So the area is 75 square cm :)
Related Questions
i need help with my math.
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Answer:
not clear please
it must be clear so
l can answer
A rectangular prism has a length of 8 inches and a width of 6 inches. The lateral area is 84 square inches. What is the height of the prism?
What is the height of the prism??
Answers
Answer:
3
Step-by-step explanation:
A rectangular prism has a length of 8 inches and a width of 6 inches. The lateral area is 84 square inches. What is the height of the prism?
Find the perimeter of the base.
P = 2l + 2w Perimeter of a rectangle
P = 2(8) + 2(6) Substitute: l = 8 and w = 6
P = 28
Use the formula for lateral area.
L = Ph
84 = (28)h Substitute: L = 84 and P = 28
h = 3 Solve for h.
The height of the prism is 3 inches.
juan says that the probability of picking two white marbles without replacing from a bag containing 3 solid white marbles and 5 striped marbles is equal to 1/64 is juan correct explain.
A-juan is correct the probability of drawing any marble is 1/8 and 1/8 ×1/8=1/64
B-juan is incorrect the probability of drawing a white marble is 3/8 and 3/8×3/8=9/64
C-juan is incorrect since one of the marbles is taken after the first draw 3/8×2/8=6/64=3/32
D-juan is incorrect the marble draw are not independent events.removing one marble affects probability for the next draw because the number of marbles in the sack decreases.
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A trapezoid has a height of 10 feet, and base measurements of 20 feet and 8 feet. What is the area?
The answer must be in square feet
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Step-by-step explanation
To find the area of a trapezoid, you can use the formula: A = 1/2 * (b1 + b2) * h, where b1 is the length of the longer base, b2 is the length of the base, and h is the trapezoid's height.
In this case, the longer base (b1) is 20 feet, the shorter base (b2) is 8 feet, and the height (h) is . We obtain the following result as soon as we insert these values into the formula:
A = 1/2 * (20 + 8) * 10
A = 1/2 * 28 * 10
A = 140 square
To know more about
https://brainly.com/question/4216261
1. Use the distributive property to simplify -5(k + 4) =
2. Use the distributive property to simplify 3(a + 2b) =
3. What is the coefficient of the 3rd term of this expression?
4x + 5y + 7z + 6 + 2x
4. What is the coefficient of the 3rd term of this expression? (This is NOT the same question as the one before. Look closely.)
4x + 5y - 7z + 6 + 2x
5. Put these expressions in order from LEAST to GREATEST.
a = 5
b = -3
1.a + 2b
2.a2 + b
3a - b
Collect like terms to simply the expression
3r + (-3r) =
Blank 1:
Question 8 (1 point)
Collect like terms to simplify the expression
2j + (-9j) =
Blank 1:
Question 9 (1 point)
Collect like terms to simplify the expression
12 + 4b - 3 + 2c =
Blank 1:
Question 10 (1 point)
Collect like terms to simplify the expression
7y + 8 - 2y + 4 =
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2. 3a+6b
3. 7z+6x+5y+6
4. 6x+5y-7z+6
5. C,B,A
Blank 1:
Question 8. -7j
Blank 1:
Question 9. 4b+2c+9
Blank 1:
Question 10. 5y+12
MR. ARCEO TAKES A TAXI FROM THE AIRPORT TO A HOTEL. THE TAXI CHARGES $2.50 INITIAL CHARGE PLUS $2.65 PER MILE. WHICH EQUATION CAN BE USED TO FIND Y, THE TOTAL COST OF THE TRIP, IF X REPRESENTS THE NUMBER OF MILES OF THE TRIP?
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step by step explanation:
2.65 is how much for each mile, and the variable, x, represents the number of miles of the trip. so, we would do 2.65x to find out how much money you have to pay for the amounts of mile.
next, you would have to add the initial fee, which is 2.50. so 2.65x+2.50.
lastly, y represents the total cost of the trip. so, 2.65x + 2.50 = y
Help me!!! 7th-grade math
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I solved it and the explanation was horrible. Then I used a proffesional sight and it said there's no equation (┬┬﹏┬┬)
Welp- sorry kid
alan is converting large and small numbers from standard notation to scientific notation. group the numbers according to their powers of 10
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Answer:
i am kind of confused by the question but i would say to but all the numbers below 1 in the 10^-4 section and the numbers above 1 in the 10^6.
i might be wrong i don't what the question is really.
Step-by-step explanation:
Alan is converting large and small numbers from standard notation to scientific notation
10⁶ = 4.03 x 10⁶, 2.93 x 10⁶, 5 x 10⁶
10⁻⁴ = 1.2x 10⁻⁴, 6 x 10⁻⁴, 5.9 x 10⁻⁴
What is the scientific notation of a number?The standard form for a number is a method by which we write number in a format like b×10ˣ. The value of b should be in between 0 to 10.
Given that,
The numbers,
0.00012, 4030000, 2930000, 0.0006, 5000000, 0.00059
Taking number, 0.00012
To convert it into scientific notation,
It should be in from of b×10ˣ,
So, now dividing and multiplying 10000 into the number 0.00012,
⇒ 0.00012 x (10000/10000)
⇒ (0.00012 x 10000)/10000
⇒ 1.2/10000
⇒ 1.2x 10⁻⁴
Similarly,
0.0006 can be written as 6 x 10⁻⁴
And 0.00059 can be written as 5.9 x 10⁻⁴
Now taking number, 4030000
To convert it into scientific notation,
It should be in from of b×10ˣ,
So, now dividing and multiplying 1000000 into the number 4030000,
⇒ 4030000 x (1000000/1000000)
⇒ (4030000 / 1000000) x 1000000
⇒ 4.03 x 1000000
⇒ 4.03 x 10⁶
Similarly,
2930000 can be written as 2.93 x 10⁶
And 5000000 can be written as 5 x 10⁶
To know more about scientific notation check:
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pls explain how to do this
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find the value of x. if x is 2 for example multiply that 6 times to find the numerator. 2 x 2 x 2 x 2 x 2 x2 = 64. multiply that with 3 which is 192. now to find the denominator you are going to multiply 2 three times. 2 x 2 x2 = 8. now divide the denominator with the numerator which equals 8.
is x^3 and since there is not another 3 in the denominator the 3 stays at the top
An animal shelter has a ratio of cats to dogs that is 9:7. What fraction of these animals are dogs?
Answers
Answer:
For the answer I would say 7, the fraction of dogs is 7/7
Hope it’s the right answer
USPS charges a flate rate of $5.50 for the 1st pound of shipping, plus $1.35 for each additional pound. FedEx charges $8.00 for the 1st pound of shipping and $1.10 for each additional pound. How many pounds will it take for USPS and FedEx to cost the same?
Answers
usps is cheaper
Step-by-step explanation:
usps equals 6 dollars 85 cents and fedex charges 9 dollars and 10 cents
5.50+1.35x = 8.00+1.10x
I put that in a math app and it gave me 10
A real estate agent expected 18 people to show up for an open house, but 25 attended. Calculate the percent error. Show your work.
Answers
Answer:
72
Step-by-step explanation:
just look up 25 out of 18 percentage
1. Which is the better buy? Which one gives you a lower price per pound (lb.)?
3 1/3 lb. of turkey for $10.50
2 1/2 lb. of turkey for $6.25
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A band expects to put 12 songs on their next CD. The band writes and records 25% more songs than they expect to put on the CD. During the editing process, 20% of the songs are removed. How many songs will there be on the final CD?
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what is y=x/2 but on a t table
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Answer:
Step-by-step explanation:
on the right side put /2 = y
Which sequence is represented by = 10 − 29 where x represents the term number and y represents the term?
1, -28, -57, -86, …
-29, -19, -9, 1, …
-19, -9, 1, 11, …
10, -19, -48, -77, …
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Zearn question please help!
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Answer: 237 1/2
Step-by-step explanation:
10 1/2*10 1/3= 108 1/2
9x14 1/3= 129
108 1/2+129= 237 1/2
For each diagram, decide if y is an increase or a decrease of x. Then determine the percentage.
Answers
In A: y is a 25% decrease of x
In B: y is a 25% increase of x
Step-by-sep explanation:
For A:
The diagram in A shows that x = 4, while y = 3.
Thus, this means that y decreased by 1, relative to x.
The percentage decease would be:
Therefore, y is a 25% decrease of x.
For B:
The diagram for B shows that x = 4, while y = 5.
Thus, this means that y increased by 1, relative to x.
The percentage increase would be:
Therefore, y is a 25% increase of x.
I need help againnnn, the 2nd and 3rd pics are supposed to be together
Answers
Answer:
umm what do you mean can like you explain
Answer:
Question 15: The length of the 3rd side is a-2 units. (I will answer Question 16 as a comment, by the way)
Step-by-step explanation:
Question 15:
Perimeter is the sum of all the side lengths of a shape, in this case, the shape is a triangle. Two side lengths and the perimeter is given, and you have to find the length of the 3rd side.
First, you'll need to add both of the given side lengths together. You do that by making an equation, where you can say that a question mark represents the unknown side.
2(a+3) + (3a-1)+ ? =6a+3
Then, you will need to use the distributive property for the first side. You have to distribute the 2 to the expression inside the parentheses. You need to multiply 2 by a, and by the 3. So, the expression becomes 2a+6.
Next, we'll work on the second side. We have to open up those parentheses that hold 3a-1 inside them. You can do that by distributing the plus sign in front of the parentheses to the expression inside the parentheses. You are just trying to either change or keep the sign in front of the expressions inside the parentheses.
We distribute the + to the 3a by multiplying, and it stays as 3a because the 3a is already a positive expression. If there is no minus sign in front of the 3a, that means that it is positive, and a positive sign multiplied by a positive number gives you a positive product. Now, we need to distribute the plus sign to the second term in the parentheses. Attention, the second term is a -1, not a positive 1. We can get that by changing 3a-1 to 3a+ -1. It is the same thing, it just looks a bit different. In words, the expression would be 3a plus a negative 1, instead of 3a minus 1. After that, we finally multiply the + by -1, which would be -1. That is because a positive sign multiplied by a negative sign will give you a negative product. Finally, after distributing the plus sign to the terms inside the parentheses, the expression becomes 3a-1. It stayed the same as it was, but it is still important to understand why it was not +1.
Now, it's time to re-write the whole expression.
2a+6+3a-1+?=6a+3
The next step is to combine the like terms on the left side of the equal sign. The terms that include the variable "a" come together, and the numbers (or constants) are combined. We combine by adding or subracting the terms. 2a+3a=5a. 6-1=5. This is why it was so important to open up those parentheses in the beginning and distribute, to not get the signs confused. If you skip that step, your answer could be incorrect. We leave the ? alone because there are no other terms that have a ? in them.
The new equation now looks like this: 5a+5+?=6a+3
Then, you need to simplify this equation by moving all of the terms that have an "a" in them to the same side of the equal sign, and the same thing to the constants (the numbers). We need to separate the terms from the question mark because that's what we're solving for. As we move the terms from the left side to the right, their sign changes to the opposite. So, 5a becomes -5a, and +5 becomes -5.
The new equation looks like this: ?=6a+3-5a-5
The next step is to again, combine the like terms, but on the right side of the equal sign. We leave the ? alone for now. 6a-5a=a. +3-5= -2.
The last step would be to just re-write the equation.
?=a-2 That is your answer. The length of the 3rd side is a-2 units.
Key take-aways of this problem:
- Perimeter is the sum of all of the lengths of all of the sides of a shape.
- It's important to look at the sign in front of the parentheses to know how to distribute it to the expresssion inside.
- To simplify an expression, you need to combine the like terms that are in it. The same variables go together, and the numbers do, too.
- When moving terms in an equation to the other side of the equal sign, the term's sign changes to the opposite.
How long does it take a train traveling at a constant rate of 50 miles per hour to
travel 350 miles?
5 hours
300 hours
7 hours
175 hours
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Can you answer THIS one in the picture form
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Help me soon due by 11 it 10:40!!!
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Answer:
1/4 divided by 1/3
1/3 divided into 1/4
How many 1/3 are in 1/4
Step-by-step explanation:
Answer:
w1/4 divided by 1/3. How many thirds are in one fourth? I dont know if it's 1/4 divided into 1/3 or 1/3 divided into 1/4.
Step-by-step explanation:
Identify the common difference in each arithmetic sequence. List 2 answers.
A. 21, 15, 9, 3, -3, …
B. 22, 26 1/2, 31, 35 1/2, 40, ...
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Answer:
B
Step-by-step explanation:
Please help me, thank you!
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Answer:
The answer would be 275 not 375. so ig C
Step-by-step explanation:
A 150- pound person burns 5.1 calories per minute when walking at a speed of 4-miles per hour. While walking, this person easts a snack that has 50 calories. This snack subtracts from the calories burned while walking. a. How long must the person walk at this speed to burn at least 180 calories? b. Describe when values the person could change so the amount of time spent walking would be less. Please help me if you can
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Awarding brainliest again!!!!
Answers
Answer:
0 = 4
Step-by-step explanation:
Add two to both sides of the equation:
credits to the other person above me!
Which of the following expressions is equal to 5 - 2m?
7 - 2(m + 1)
7 - (2m - 5)
7 - 2(m - 2)
Answers
Answer:
the second one
Step-by-step explanation:
7 - (2m - 5)
Hey there!
In order for us to find out which one is equivalent to 5 – 2m , we can go through all of your options to see which one gives us that!
“Equivalent to 5 – 2m”
Option A.
7 – 2(m + 1)
Distribute
7 – 2(m) + 2(1)
7 – 2m + 2
COMBINE LIKE TERMS
7 – 2 = 5
Option Answer: 5 – 2m
Option A can be a possible ANSWER ✅
Option B.
7 - (2m - 5)
DISTRIBUTE
7 – 2m + 5
COMBINE LIKE TERMS
7 + 5 = 12
–2m = –2m
Option Answer: –2m + 12
Option B CAN’T possibly be your ANSWER ❌
Option C.
7 - 2(m - 2)
DISTRIBUTE
7 - 2(m) + (–2)(–2)
7 – 2m + 4
COMBINE YOUR LIKE TERMS
7 + 4 = 11
–2m = –2m
Option answer: –2m + 11
Option C. CANT possibly be your ANSWER ❌
Now that we have went through ALL of your choices, this leaves “Option A” as your answer
Answer: Option A). 7 - 2(m + 1) ☑️
Good luck on your assignment and enjoy your day!
~LoveYourselfFirst:)
Mrs. Cerruti uses 7.7 gallons to drive 245 miles. How far could she drive with 10.3 gallons?
Answers
Answer:
about 327.7 miles
Step-by-step explanation:
Proportions :
7.7 gallons / 245 miles = 10.3 gallons / x miles
x is about 327.7 miles
After 5 new students joined a class, the class had 35 students. Which equation can be used to find n, the number of students in the class before the 5 new students joined?
Answers
Hope this helps
Answer:
35-5=n or n=35-5
Step-by-step explanation:
when you take the new students away, you get the number of students before. 35-5 equals the number of students before.
n=30
A school club sold 300 shirts. 31% were sold to fifth graders, 52% were sold to sixth graders, and the rest were sold to teachers. How many shirts were sold to each group-fifth graders, 6th graders, and teachers? Explain or show your reasoning. Please help I'm late on turning in homework!
Answers
Answer:
5th graders = 93 people 6th graders = 156 teachers = 51
Step-by-step explanation:
93 5th graders bought shirts, 156 6th graders bought shirts, 51 teachers bought shirts
300x0.52 = 156 shirts sold to 6th graders
156+93 = 249 shirts sold to students
300-249 = 51 shirts sold to teachers