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Related Questions
Solve the system of equations x - 4y = 7
2x + y = 5
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2x+y=5
2x+y=5 I am not sure but I’m pretty sure the answer is -2
solve for brainliest please
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Answer:
136 = 9x+10 (alternate interior angles for parallel lines m and n)
9x = 126
x = 14
Step-by-step explanation:
Stop by my you tube channel "Sciency Sergei". You may suggest a topic to discuss or problem to solve.
221x3 + 154x2 + 228x + 41) / (17x + 4)
help?
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Find the value of x. Leave your answer in simplest radical form.
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Answer:
First you need to find at least two dimensions of the triangle containing a side length of x. The triangle of the top can be used for that. The hypothenuse for the 7,3 triangle is [tex]\sqrt{58}[/tex].
Now we can use the other triangle with sides of x,[tex]\sqrt{58}[/tex], and a hypothenuse of 9 to find x.
x^2 + [tex]\sqrt{58}^2[/tex] = 9^2
simplify
x^2 + 58 = 81
subtract 58 from both sides
x^2 = 23
x = [tex]\sqrt{23\\}[/tex]
and since this radical cannot be simplified further that is your answer.
Step-by-step explanation:
Step-by-step explanation:
Pythagoras.
c² = a² + b²
c being the Hypotenuse (the side opposite of the right angle).
so, the length of the rectangle is the Hypotenuse of the right-angled triangle on the top :
length² = 7² + 3² = 49 + 9 = 58
length = sqrt(58)
the diagonal of the rectangle is again the Hypotenuse of the right-angled triangle of length (sqrt(58)), width (x) and diagonal (9) of the rectangle.
so, we have
9² = sqrt(58)² + x² = 58 + x²
81 = 58 + x²
23 = x²
x = sqrt(23)
The length of a rectangle is 2 centimeters longer than its width.
If the perimeter of the rectangle is 64 centimeters, find its length and width.
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Answer: 15
Step-by-step explanation:
Let the length of the width = w.
Then, the length of the length is w + 2.
The perimeter of a rectangle is 2*length + 2*width.
Therefore, 2*(w+2) + 2*w = 64
2w + 4 + 2w = 64
4w + 4 = 64
4w = 60
w = 15
Michael buys a pair of jeans that regularly costs $62. The jeans were discounted 30%. How much money did Michael pay for the jeans?
Plss help
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Answer:
$43.40
Step-by-step explanation:
First, you would have to find out how much was discounted. To find this, you multiply $62.00 (the total) by 30% (the discount sale). You will end up getting $18.60. Finally, you can subtract $18.60 from the original total which was $62.00 to get $43.40 after the discount.
What equation represents the line shown:
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Answer: B) y=-3x+2.
Step-by-step explanation:
+2 is where the line touches on the y axis. and for -3. you find 2 points and you go from 1 point to the other. the points i got were. (0,2) (2,-4). i went down 6 times, and to the right 2. that’s a fraction 6/2. and then simplify. 2 can go into 6 three times, and can go into 2 once. 3/1. since there’s a 1 underneath it’s just 3. and since you went down. it’s is negative. so y=-3x+2 is your answer.
16. Which of the following ordered pairs is found in the solution of inequality 3x + 5y ≤ 10?
a. (0,0)
b. (0,3)
c. (1,2)
d. (2,1)
17. Which of the following ordered pairs cannot be found in the solution of the inequality x + y ≥ 7?
a. (1,5)
b. (3,4)
c. (4,4)
d. (5,5)
18. Which of the following region represent the point in the solution of the inequality y > 1?
a. Above the line y = 1
b. Below the line y = 1
c. On and above the line y = 1
d. On and below the line y = 1
19. Which of the following regions represent the points in the solution of the inequality x ≤ 1?
a. Left of the line x = 1
b. On and left of the line x = 1
c. On and right of the line x = 1
d. Right of the line x = 1
20. although represent the boundary line of the graph of the inequality 2x + y < 5?
a. Dashed line
b. Solid line
c. None of the above
d. Cannot be determine
Help me please
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Answer:
1 a
2 a
3 a
4 a
5 a
Step-by-step explanation:
All answers are A
Write the inequality:
Two less than twice a number is less than a half.
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Answer:
2x-2<1/2
Step-by-step explanation:
when the problem says "two less than" it means we are subtracting 2 from something, in this case, that something is "twice a number" as the problem states. So we would write 2x where x is a variable that represents any number so we have 2x-2<1/2.
Anna selects a positive multiple of 4 that is less than forty, and Becky selects a positive multiple of 3 that is less than sixty. What is the probability that they pick the same number?
I will mark brainliest!
Answers
Answer:
3/171
Step-by-step explanation:
The problem can be simplified into finding probability that Anna and Becky select 12 or 24 or 36 which are less than 40 and multiples of 3 and 4.
Probability of Anna selecting 12 = 1/9
Probability of Becky selecting 12 = 1/19
Probability of Anna and Becky selecting 12 = 1/9 * 1/19 = 1/171
Probability of Anna and Becky selecting 12 or 24 or 36 = 3* 1/171 = 3/171
Malaya creates a password as follows: letter, number, letter, special character, number Assuming that there are 12 special characters, if you were trying to guess Malaya’s password, what is the most guesses that you would have to make? a. 702,000 b. 811,200 c. 205,476,480 d. 254,803,968.
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Answer:
✅ B. 811,200edgen
Answer:
B
Step-by-step explanation:
got it right on edge
PLS PLS PLS HELP ME...
Answers
Answer:
10
Step-by-step explanation:
Take the bottom number from the smaller triangle and multiply by 10 (just like they did for the 3 which is how they turned it into 15)
The perimeter of a square window is 148 inches. How long is each side?
Answers
37 inches
Step-by-step explanation:
Perimeter =4 x length
148=4L
Divide both sides by L
148/4 =4L/4
L=37inches
Factor completely 4x3 28x2 7x 49. (x − 7)(4x2 7) (x − 7)(4x2 − 7) (x 7)(4x2 7) (x 7)(4x2 − 7).
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Answer:
hope this helps
Step-by-step explanation:
Please fallow the steps it will help you
Step1: 4x^3 + 28x^2 + 7x + 49
Step 2: 4x^2(x+7) + 7(x+7)
Step 3: (4x^2+7)(x+7)
Step 4: (x+7)(4x^2+7)
Evaluate the expression
−1+(4/2(6−1))2
Answers
Answer:19
Step-by-step explanation:
−1+(
4
2
(6−1))(2)
=−1+2(6−1)(2)
=−1+(2)(5)(2)
=−1+(10)(2)
=−1+20
=19
Un club de football decide de vendre des tee-shirts
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Answer:
1) the purchase price
(4.30+1.45)*2000
5.75*2000
11500€
2) the profit
(1750*10.50+(2000-1750)*8.50)-11500
18375+2125-11500
9000€
Step-by-step explanation:
The width of a rectangle is 4 inches, and the length is 9 inches, what is the length of a side to a square that has the same area as a rectangle
Answers
Answer:
36
Step-by-step explanation:
9x4=36
If chicken costs 10¢ per ounce and grain costs 1¢ per ounce, how many ounces of each should
Ruff use in each bag of dog food to minimize cost?
Answers
The cost of the chicken and the grain are illustrations of linear programming
The minimized cost is 12¢
How to determine the minimized costRepresent the number of chicken with x and the number of grain with y.
So, the objective function is
Min Z = 10x + y
The constraints are not given.
So, the function cannot be minimized.
However, assume the minimum feasible values of x and y are (1,2), the minimized cost would be:
Z = 10 * 1 + 2
Z = 12
Hence, the minimized cost is 12¢
Read more about linear programming at:
https://brainly.com/question/15356519
In a scale drawing, a sofa is 3 inches long, if the actual length of the sofa is 5 feet long, find the scale factor.
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Answer:
Whats the square unit???
Step-by-step explanation:
HELLLLPPPPPLPPOOLL no fake answers pls
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Answer:
x = 11
Step-by-step explanation:
(3x + 28) + (5x + 52) + ( 2x - 10) = 180
(3x + 5x + 2x) + (28 + 52 - 10) = 180
10x + 70 = 180
10x = 180 - 70
10x = 110
x = 11
Answer:
x= 11
Step-by-step explanation:
(3x + 5x) + (5x+52) + (2x-10)= 180 (sum of anglea in a triangle)
10x+80-10= 180
10x+70=180
10x=180-70
10x=110
x=110÷10
x=11
Thabo rounded the number to the nearest 5. His answer was 340. Write down 2 possible number for the actual number of marbles
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Answer:
Two possible values: 339 and 341.
Step-by-step explanation:
Any number that satisfies 335<x<345
When a random sample is selected from a population, the sample mean is not expected to be exactly equal to the population mean. On average, the size of the difference between a sample mean and the population mean is predicted by
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16.) The population of Wolf County was 12,390 in 2000 and 13,090 in 2010. Assuming that population growth in this county is linear, find the following:
b.) When will the population reach 21,000 people?
c.) When did the first settlers arrive in Wolf County?
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13090 - 12390 = 700 people
2010 - 2000 = 10 years
700 / 10 = 70 people per year
Based on the data, here is our equation
y = 70x + 13,090
b) 21,000 = 70x + 13,090
x = 113 years
113 + 2010 = Answer = year 2123
c) 0 = 70x + 13,090
x = -187
-187 + 2010 = Answer = year 1823
by rounding each number to 1 significant figure, estimate the answer to 623 - 14.71 ÷ 0.54.
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623 to 1 significant number = 600
14.71 to 1 significant number = 10
0.54 to 1 significant number = 0.5
answer:
[tex]\tt \dfrac{600-10}{0.5}=1180[/tex]
6 The system of equations shown below has no solution.
Change one number in one of the equations so that the
system has one solution. Graph your new system on
the coordinate grid to support your answer.
y= 2x – 1
y = 2x + 1
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Answer:
its b
Step-by-step explanation:
what is the value of x?
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Answer:
x = 10
Step-by-step explanation:
All angles in a triangle must add up to 180. We know one angle is 68 and another is 90 because there is a right angle (which are always 90).
180 = 90 + 68 + (2x + 2)
180 = 158 + (2x + 2). subtract 158 from both sides
22 = 2x + 2. subtract 2 from both sides
20 = 2x. divide both sides by 2
10 = x
Answer:
x = 10
Step-by-step explanation:
2x + 2 + 68 + 90 = 180
2x + 160 = 180
2x = 20
x = 10
I need help please help me !!!!
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Answer:
C
Step-by-step explanation:
hope this helps :)))))
What’s the answer for 21?
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Answer:
C
Explanation:
A: 2 in. by 2 in. by 1 in. = 4 cubic inches
B: 1 in. by 1 in. by 1 in. = 1 cubic inches
C: 2 in. by 1.5 in. by 0.5 in. = 1.5 cubic inches
D: 3 in. by 0.5 in. by 1.5 in. = 2.25 cubic inches
Therefore, the answer is C.
What is the y-intercept of the graph of y = 2.5'?
a. 2.5
b. 1
a
C.
0
d. -1
PESERVED
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Answer:
a. 2.5..... I believe but you should get other answers
Refer to the figure. Justify your answer. Suppose the base and height are each multiplied by 1/2 (0.5). What effect would this have on the area? *
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Answer: The Area Would be 12, 1/4 the original area of 48, therefore signifying that it was quartered.
