Answer:
146x + 9
unless they have to be seperate not all combined
How do you solve x+(2x + 40) + (3x - 50) = 15002
Answer:
First, combine like terms by combining the variables and constants. Then use properties of equality to isolate the variable and find the value for x.
Step-by-step explanation:
sample response from ed2020
help!! Will mark brainliest! Thank you
Answer:
34
Step-by-step explanation:
7y - 3x
7(4) - 3(-2)
28-(-6)
34
1 Let a = 5.2 and b = 4.7.
a Find the exact value of 3a + b3.
Xena estimates that the answer to part a is 140.
b Find the percentage error made by Xena in her estimation.
Part (a)
Replace every 'a' with 5.2 and replace every 'b' with 4.7
Then use your calculator to evaluate.
3a + b^3 = 3*5.2 + (4.7)^3 = 119.423
Answer: 119.423===============================================
Part (b)
The true value is 119.423 which is the result of part (a)
The estimated value is 140
Subtract the two values
140-119.423 = 20.577
and divide that over the true value
20.577/140 = 0.14697857142858
Which, when rounded to 4 decimal places, we get 0.1470
Move the decimal place over to the right 2 spots to get 14.70%
Answer: 14.70% error (approximate)What is the curved surface area of a cylinder with radius 8cm and height 15cm 754.29cm 574.92cm 354.29cm 624.29cm
Answer:
Below.
Step-by-step explanation:
This area = circumference of the base x height
= 2 * pi * 8 * 15
= 754.29 cm^2.
Answer:
The answer is 754.29cm^2
Step-by-step explanation:
radius= 8 cm
height= 15 cm
This is an area question
The formula to calculate the curved surface area will be,:
2 pile r times h which will be = to: 2 pile r h
2 x 22/7/3.14 x the radius which is 8 x height which is 15.
2 x 22/7 x 8 x 15 =
754.29 cm^2.
Okay.
PLEASE HELP HELP ASAP
Answer:
12.7311111111111 on and on
Step-by-step explanation:
Answer:
the height of the cylinder is 40 meters
Step-by-step explanation:
Use the formula they give you for the volume, and the fact that it has to equal 1000 [tex]\pi[/tex] cubic meters. Recall also that the cylinder's radius is 5 meters:
[tex]Vol=\pi\,R^2\,h\\1000\,\pi= \pi\,(5)^2 \,h\\1000\,pi=\,\pi\,25\,\,h\\h=1000\,\pi/(25\,\pi)\\h=40 \,\,m[/tex]
18. Danny rolls two number cubes (dice), one red and one blue.
What is the probability that he will roll a 2 on the red cube
and a 6 on the blue cube?
a) 1
b) 2 .
6
15
c) 1
d) 1
18
36
Answer:
1/36
Step-by-step explanation:
1/6 * 1/6 = 1/36
Explain why the following statements are equivalent: x + (y + 9) = (x + y) + 9
Answer:
There are no like terms hence they stay the same
Step-by-step explanation:
x + (y + 9)
There are no like terms
=x+y+9
(x + y) + 9
There are no like terms
=x+y+9
Answer:get into it
Step-by-Stefan:
Melissa has three different positive integers. She adds their reciprocals together and gets a sum of $1$. What is the product of her integers?Melissa has three different positive integers. She adds their reciprocals together and gets a sum of $1$. What is the product of her integers?
Answer:
One possible answer is 0,1,1
Step-by-step explanation:
-1x-1 is 1
If tan fº = 2/1 and the measure of yw is 8 units, what is the measure of xw?
2units
4units
7units
8 units
*see attachment for the figure referred to
Answer:
4 units
Step-by-step explanation:
Given that [tex] tan(f) = \frac{2}{1} [/tex], therefore, it follows that:
[tex] tan(f) = \frac{opp}{adjacent} = \frac{YW}{XW} = \frac{8}{XW} [/tex],
If the ratio of YW to XW = 2:1, therefore, [tex] \frac{2}{1} = \frac{8}{XW} [/tex]
Cross multiply to find XW
[tex] XW*2 = 8*1 [/tex]
[tex] XW = \frac{8}{2} = 4 units[/tex]
Answer:
the answer is B
Step-by-step explanation:
I took the test and got it right
Joan saved $2.34 on an item that is usually $7.89. What percent did she save
¿Cuál es la suma de los ángulos 1 al 6 en este paralelogramo?
Answer:
Un paralelogramo es una forma plana con lados opuestos paralelos y de igual longitud.
Step-by-step explanation:
Los ángulos "a" y "b" suman 180 °, por lo que son ángulos suplementarios. NOTA: ¡Los cuadrados, rectángulos y rombos son todos paralelogramos
Espero que esto te ayude :)
I’ll give you 20 points if you help me
Answer:
f(g(x)) = 2x +(-5)
Step-by-step explanation:
Put the argument value into the function and simplify the result.
f(g(x)) = f(x -3) = 2(x- 3) +1 = 2x -6 +1
f(g(x)) = 2x +(-5)
Pls halp due today >_<. Thank you
Answer:
<
Step-by-step explanation:
Step 1: Evaluate 2√40
2√40 = 12.6491
Step 2: Evaluate 7 + √63
7 + √63 = 14.9373
Step 3: Fill in inequality symbol
12.6491 < 14.9373
What is the domain of the function represented by the graph?
Answer:
I believe its c
Step-by-step explanation:
The domain of a quadratic function is all real numbers
Answer:
See Below
Step-by-step explanation:
How many pennies could you have if: When you Break de Pennies into groups of 2, you have 1 penny left over, AND when you break the pennies into groups of 3, and you have 1 penny left over, AND when you break the pennies into groups of 5, you have 1 penny left?
Answer:
The answer is 31 pennies
Step-by-step explanation:
we have to find a number that gives a remainder of 1 when divided by both 2, 3 and 5.
The easiest way to do this is to list the factors of 5, add 1 to it, and test them until we find the one with a remainder of 1 by all three divisors. This is done as follows:
1) factor: 5 (+1) = 6
6 ÷ 2 = 3 remainder 0
6 ÷ 3 = 2 remainder 0
since there is a remainder of 0, when divided by 3, 6 is wrong
2) factor; 10 (+1) = 11
11 ÷ 3 = 3 remainder 2 ( 11 is not the correct answer
3) factor : 15 (+1) = 16
16 ÷ 2 = 8 remainder 0 ( 16 is not the correct answer
4) factor : 20(+1) = 21
21 ÷ 3 = 7 remainder 0 ( 21 is wrong)
5) factor : 25(+1) = 26
26 ÷ 2 = 13 remainder 0 ( 26 is wrong)
6) factor : 30(+1) = 31
31 ÷ 2 = 15 Remainder 1
31 ÷ 3 = 10 Remainder 1
31 ÷ 5 = 6 Remainder 1
since all three divisors give a remainder of 1, the correct answer is 31
Therefore you have 31 pwnnies
-3+8x-5=-8 Choices: A. -2 B. -1 C. -3/4 D. 0
Answer:
D.0
Step-by-step explanation:
Please save for x the. The perimeter
Answer:
x = 1
Step-by-step explanation:
The perimeter of the square is 4(2x + 3) = 8x + 12 and the perimeter of the triangle is 3x + 2(x + 3) + 5x + 4 = 10x + 10. Since they are equal, we can write:
8x + 12 = 10x + 10
-2x = -2
x = 1
Answer:
x =1Step-by-step explanation:
Perimeter of a square = 4(a)
Where a = side=2x+3
[tex]P = 4(a)\\P= 4(2x+3)\\Perimeter \: = 8x +12[/tex]
Perimeter of a triangle =
[tex]a +b +c[/tex]
[tex]3x + 2(x+3) +5x+4\\3x +2x +6 +5x+4\\Simplify\\: \\3x+2x+5x = 10x\\6+4 =10\\\\= 10x+10[/tex]
[tex]8x +12 = 10x+10\\Collect like terms\\8x -10x = 10-12\\-2x =-2\\Divide\:both\:sides\:of\:the\:equation\:by \:-2\\\frac{-2x}{-2} = \frac{-2}{-2} \\\\x = 1[/tex]
If it is 50 degrees outside and the temperature will drop 17 degrees in the next six hours, how cold will it get?
Answer:
it will drop to 33 degrees
Answer:
33 degrees
Step-by-step explanation:
Take the temperature and subtract 17 degrees
50 -17
33 degrees
Mario completely covered a square floor using 98.5 ft ^2 of hardwood without any overlap
Which measurement is closest to the side length of this floor in feet?
9.5 ft
10 ft
25 ft
49 ft
The answer is 10 ft. I took the test but it didn't explain why it was the answer.
The direction angle of a vector is 135o. The x-component of the vector is -3. What is the y-component of this vector
Answer:
3
Step-by-step explanation:
the vector somewhat looks like this:
^
_\|_ the angle is 135 degrees, and the x component is -3
| To find the y component given the direction angle and x component, use the formula y_comp = tan(angle) * x_comp
tan (135 degrees) * -3 = 3
You can also use the graph and geometry, but that method is not recommended for beginners as it is very easy to make a mistake. The graph should be used to check if your answer makes sense.
(3x+6) + (5x - 7) =
Answer:
8x - 1Step-by-step explanation:
(3x+6) + (5x - 7) =3x+6 + 5x - 7=3x +5x +6 - 7=8x - 1Hope this helps.. Good luck!
Given that (y+2), (y+3)and (2y^2+1) are consecutive terms of an arithmetic progression find the value of x
Answer:
In an arithmetic sequence, the difference between any consecutive terms should be always the same, then we have:
(y + 3) - (y + 2) = D
(2*y^2 + 1) - (y + 3) = D.
From the first equation, we can find the value of D:
y + 3 - y - 2 = D
1 = D.
Replacing this in the second equation, we have:
(2*y^2 + 1) - (y + 3) = 1
Now we can solve this equation:
2*y^2 + 1 - y - 3 - 1 = 0
2*y^2 - y - 3 = 0.
The solutions of this quadratic equation can be found with the Bhaskara's equation:
[tex]y = \frac{1 +- \sqrt{1^2 - 4*2*(-3)} }{2*2} = \frac{1+-\sqrt{25} }{4} = \frac{1+-5}{4}[/tex]
Then the possible values of y are:
y = (1 + 5)/4 = 6/4
y = (1 - 5)/4 = -1
Please help on 5 to be marked the brainliest
Answer:
3,200
Step-by-step explanation:
Answer:
4000
Step-by-step explanation:
3200 x 250 = 800,000 x 0.1 = 80,000
4000 x 250 = 1,000,000 x 0.1 = 100,000
4200 x 250 = 1,050,000 x 0.1 = 105,000
5000 x 250 = 1,250,000 x 0.1 = 125,000
I could really use some help with this problem. The file is attached below. Thanks!
Answer:
Step-by-step explanation:
8x³ + 2x² -20x - 5
= (8x³ + 2x²) + (-20x - 5)
= 2x² (4x + 1) + (-5)(4x + 1)
= (2x² - 5)(4x +1 )
Hellllllllpppppppppppppppppp
Answer:
7/9
Step-by-step explanation:
Since a negative times a negative is positive, -(-1) becomes + 1 so the expression becomes -2/9 + 1. Using the commutative property of addition (a + b = b + a), we can rewrite this as 1 - 2/9. 1 = 9/9 so the expression becomes 9/9 - 2/9 = 7/9.
Question 12
What is the length of a segment with endpoints at (-3, 4) and (4, 4)?
Answer:
7 units. count from -3 to 4 on a number line
Step-by-step explanation:
Answer:(4,5)
Step-by-step explanation:
Olivia decides to hire an electrician. The electrician charges $35 to come out to Olivia's
home, and $60 an hour for work. This is modeled by
C (2) = 35+ 60x . Explain what C (5) = 335 means in terms of total cost and
number of hours.
help plz
Answer:
Step-by-step explanation:
Total cost
C (x) = 35+ 60x
Where,
Fixed cost= $35
Variable cost = 60x
x= number of hours of work
Total cost is the addition of fixed and variable cost
C (x) = 35+ 60x
C(5)= 35 + 60(5)
= 35 + 300
=335
C(5) = 335
C(5) = 335 is Olivia's total cost of hiring the electrician
x=5 is the electrician's number of hours of work
35= fixed cost of hiring the electrician
60(5) = 300 is the variable cost of hiring the electrician for 5 hours
In between what two integers is the \large \sqrt{77}
Answer:
8 and 9
Step-by-step explanation:
Since 77 is between 64= 8² and 81= 9²
√64 < √77 < √818 < √77 < 9What is the actual distance around the garden?It took Clare 30 minutes to walk around the garden at a constant speed
Answer:
f she walks for 30 minutes, that means she was traveling at about 280 feet per minute (8,400÷30=280), or about 16,800 feet per hour
Step-by-step explanation:
Joe bought a box of laundry detergent that contains 195 scoops. Each load of laundry
2 scoops. How many loads of laundry can he do with this one box? The box of
detergent was $19.99. How much is he paying for each load that he washes?
uses
Answer:
at least 97 loads
Step-by-step explanation: