Li tried to evaluate an expression step by step. Find Li's mistake. What is the mistake he made. Is it A:step 1, B:step 2, C:step 3 or D: Li did not make a mistake ???
Answers
Answer: C Step 3
Step-by-step explanation: I passed
Related Questions
Answer with evidence I give points and brainiest and friend me for personal points
Answers
Answer:
12.75ft²
Step-by-step explanation:
Step 1: Determine the formula for the area of a trapezoid
The formula for the area of a trapezoid is A=1/2(b1+b2)*h where b1 and b2 are the bases of the trapezoid and h is the height of the trapezoid.
Step 2: List given information
b1=8ft
b2=9ft
h=1.5ft
Step 3: Plug given variables into the formula
A=1/2(b1+b2)*h
A=1/2(8+9)*1.5
A=1/2(17)*1.5
A=8.5*1.5
A=12.75
So the area of the seat is 12.75ft²
A school has all of the students in grade 8 take a math test. Several samples are taken from the results. Which of the following samples is NOT likely to produce a representative sample of the population?
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step by step
sisbeuejebusnanakaiajrbrv
Please answer 6! Thank you!
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Answer:
∠J= 22°
JL=19.0137
KL=7.99
Step-by-step explanation:
The step-by-step is attached as a picture. Hope it helps! Feel free to message me if you have any questions in reference to this math problem.
The answer to the problem you sent me in the comments is attached to here too.
help please due in 45 mins pleaseee helpppppp omg
Answers
Answer:
1. 0.6
2. 0.08333
.
.
.
.
i hope this helps
Answer:
I can't exactly show the work very well or in the way you want but I can answer the question...
Step-by-step explanation:
3/5 as a decimal is 0.6 and 1/12 as a decimal is 0.08333 (it goes on forever)
Hope this helps!
q + 12 ≥ 5
Solve the inequality
Answers
Answer:
Q≥-7
Step-by-step explanation:
Q+12≥5 subtract 12 from both sides Then simplify
Which of the following represents the factorization of the polynomial below? 2x² + 5x +3
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Answer:
Correct Answer D.
a × c = 11, b = 10
10 × 1 = 10
10 + 1 = 11
Divide the ten and 1 by 2
(x = 2) (2x+1)
Step-by-step explanation:
Use the KNOWS Strategy to solve the following problem.
Mia earns $105 for 7 hours of work. Diego earns $150 for 15 hours of work.
Who earns more money per hour?
Answers
Answer:
mia earns 15$/h and diego 10$/h
Step-by-step explanation:
105/7=15$ per hour
150/15=10$ per hour
What is the best answer for this
Answers
Step-by-step explanation:
the answer is 4
a+(-7)+3=0
a=7-3
a= 4
Answer:
4
Step-by-step explanation:
There are two ways of going about this problem. One could simply substitute every given answer and simplify to see if it makes a true statement. Conversely, one could solve the given equation with inverse operations. In this case, it is easier to solve with inverse operations.
Undo parenthesis,
a + (-7) + 3 = 0
a - 7 + 3 = 0
Simplify,
a - 7 + 3 = 0
a - 4 = 0
Inverse operations,
a - 4 = 0
+4
a = 4
Write an expression that is equivalent to -2/5(15 - 20d +50)
Explain please!:)
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Answer:
-26 + 4/5d
Step-by-step explanation:
-2/5 ( 15 - 2d + 50)
= -2/5 ( 65 - 2d)
= -2/5 * 65 - (-2/5) * 2d
= -26 - (-4/5d)
= -26 + 4/5d
Which pair shows equivalent expressions?
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Answer:
d
Step-by-step explanation:
Eight avocados cost $4.
How much do 16 avocados cost?
How much do 20 avocados cost? $10 because it’s 0.50 per avocado
How much do 9 avocados cost?
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Answer:
If each avocado costs 0.50, then 16 avocados would cost $8.00, 9 avocados would cost $4.50
Hope this helps! :)
Match each expreeddion with the correct answer
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what is a difference between the sector and the segment of a circle?
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Step-by-step explanation:
The difference between the sector and the segment of a circle is :
Sector ➡ The region enclosed by any two radii and the corresponding arc of a circle is a sector of the circle.
Whereas
Segment ➡ The region enclosed by a chord and corresponding arc is called the segment of a circle.
Hope it will help :)❤
On a map, 1 inch equals 5 miles. Two cities are 3 inches apart on the map. What is the actual distance between the cities?
The actual distance between the cities is ___ miles.
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Answer:
15
Step-by-step explanation:
cross multiplying, [tex]\frac{1}{5}[/tex] × [tex]\frac{3}{x}[/tex]
then it would be 15 =1x
and 1x is basically just one, so 15 = x
What is 1,050/55 What is the answer.
Answers
Answer: 19.0909090909 or 19
Evaluate N= -3.3 - n x n
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Answer:kk
Step-by-step explanation:
EASY QUESTION! WILL GIVE BRAINLIEST! AND THANKS!
A clothing store donated a percent of every sale to charity . The total sales were $6,380 so the store donated $319. What percent of $6,380 was donated to charity ?
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5% Because when you minus them it will be 6061 and 6061/6380 converted ad a fraction will be 95% so that means that 5% is subtracted
319 / 6,380 = 0.05
Multiply your quotient by 100.
0.05 * 100
But even without the second step, it’s easy to see that your solution is 5.
The store donated 5% of their sales.
A
4 yards
B
C
15 yards
Find the area of ABC.
[?] yd!
Enter
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Answer: it shuld be 3 as zee answer
Step-by-step explanation:
. A solid metal cylinder of radius 5 cm and height 12 cm is melted down and recast into a
cone of base radius 10 cm.
Calculate the height of the cone.
Answers
Answer:
H = 9 cm
Step-by-step explanation:
The volume of the cylinder equal the volume
[tex]\pi\: \: {r}^{2} \times hcy = \frac{1}{3} \pi {r}^{2} \times hco \\ hco = 9 \: cm[/tex]
The height of the cone is 9 cm.
The volume of the cylinder = The volume of the Cone
This is because the exact metal cylinder was recast into a cone.
Volume of a cylinder:volume = πr²h
r = 5 cm
h = 12 cm
volume = π × 5² × 12
volume = π × 25 × 12
volume = 300π
Volume of a cone:volume = 1 / 3 πr²h
r = 10 cm
h = ?
300π = 1 / 3 × π × 10² × h
300π = 100πh / 3
900π = 100πh
h = 900π / 100π
h = 9 cm
learn more on cylinder and cone: https://brainly.com/question/16610884?referrer=searchResults
What formula do i use when it tells me to find the area with a given circumference? If you know please give an example as well, thank you.
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Answer:
Step-by-step explanation:
A = C^2 / 4 x pi
so if the circumfernce was 10 you would square it to make it 100 and then you would do 4 x pi to get 12.57 ( rounded).
you would then just divide 100 by 12.57 = 7.96 ( rounded)
hope it helped
what is the sign of A times ( - b)
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Answer:
i believe it's negative.
Step-by-step explanation:
if the question is asking A x -B it should be negative because it's a negative number times a positive. hope i helped.
A number w increased by 6 is at least 24. Using an inequality
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Answer:
x<24
Step-by-step explanation:
[tex]w + 6 \geqslant 24[/tex]
mrs thomas wants to find the price charged for the same stereo speaker at different stores
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Can somebody plz help answer this math problem (only if u know how to do it) thx :3
WILL MARK BRAINLIEST WHOEVER ANSWERS FIRST :DDD!
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Answer:
hour hand = 7.5 x 2 for the diameter. C = 2(pi)(15) = approx. 94 centimeters. Minute hand = 9.5 x 2 = 19, C = 2(pi)(19) = approx. 119 centimeters
Step-by-step explanation:
Biologists estimate deer populations by sampling a small area and using that information to estimate the entire
population of a large area. They use the equation p= na to estimate p, the population of deer in a acres of land, where
n is the number of deer per acre determined from the sampling. A biologist determines that 1,800 deer populate an area
of 150 acres. What value of n did the biologist find in the initial sampling of the population?
12
B 83
1,650
270,000
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math work pls help :)
Answers
Answer:
SAS
Step-by-step explanation:
The postulate SAS identifies that the shape has two sides, and the unincluded angle in the middle.
Hope this helps!
What is 1 12/20 as a percentage
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Step-by-step explanation:
step 1. 1-12/20 = 1.6
step 2. 1.6 = 160%.
Mount Mo is 5323 feet tall dawn climbed it in five days she climbed 821 feet on the last day how many feet did she climb in the first four days
Answers
Answer:
1,125.5
Step-by-step explanation:
You subtract the amount she climbed on the last day then divide the difference by four
Answer:
She climbed 4502 feet the first four days and if she climbed the same amount each of those four days she climbed 1125.5 each day!
HELP ME 7th grade math
Find the surface Area
Answers
Answer:
30.24
Step-by-step explanation:
I times the base by the height then divided by 2
So it’s 97 B.
If the sales tax rate is 7%, how much tax would Luis pay for a $325 bicycle?∨
Answers
Answer:
24.20 tax
369.98 total
Step-by-step explanation: