Answer:
[tex]\frac{7}{3}[/tex]
Step-by-step explanation:
42/18=[tex]\frac{7}{3}[/tex]
Rendell took 2.34 hr to cycle 42 km.
Rendell cycles 42 km at an average speed of 18 km/hr.
Distance = 42 km
Speed = 18 km/hr
Speed is define as the distance covered per unit time,
Here,
Time = Distance / speed
= 42 / 18
= 2.34 hr
Thus, Rendell took 2.34 hr to cycle 42 km.
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please help me again with my algebra , Thank you
Answer:
1)
[tex]2x {}^{2} + 3x + 2 + 3 {x}^{2} - 5x - 1[/tex]
[tex]5 {x}^{2} - 2x + 1[/tex]
2)
[tex]x {}^{2} - 4 - (12x {}^{2} + 4x - 6)[/tex]
[tex]x {}^{2} - 4 - 12x {}^{2} - 4x + 6[/tex]
[tex] - 11x {}^{2} - 4x + 2[/tex]
3)
[tex]6x {}^{2} + 3x - 4 + x {}^{2} - 7[/tex]
[tex]7x {}^{2} + 3x - 11[/tex]
4)
[tex]7x {}^{ 3} + 4x - 1 + 2x {}^{2} - 6x + 2[/tex]
[tex]7x {}^{3} + 2x {}^{2} - 2x + 1[/tex]
5)
5x⁴-4x³-3x-4+2x⁴+6x³-2x
7x⁴+2x³-5x-4
Just do the simple addition. Make sure to add like terms. For instance: Add 3x² with 2x² only, not with 3x and 2.
→ 2x² + 3x + 2 + 3x² - 5x - 1
→ 2x² + 3x² + 3x - 5x + 2 - 1
→ 5x² - 2x + 12) Subtract x² - 4 and 12x² + 4x - 6The law of subtraction is to subtract the smaller value from the larger value. But it is not necessary that it is always applicable. Its value can be positive, negative and zero (which varies with the given values).
→ x² - 4 - (12x² + 4x - 6)
There will be no change in sign during addition. But if you're doing subtraction change the signs.
→ x² - 4 - 12x² - 4x + 6 [ Product of (-)(-) is (+) and (+)(-) is (-) ]
→ x² - 12x² - 4x - 4 + 6
→ - 11x² - 4x + 23) Add 6x² + 3x - 4 and x² - 7→ 6x² + 3x - 4 + x² - 7
→ 6x² + x² + 3x - 4 - 7
→ 7x² + 3x - 114) Add 7x³ + 4x - 1 and 2x² - 6x + 2→ 7x³ + 4x - 1 + 2x² - 6x + 2
→ 7x³ + 2x² + 4x - 6x - 1 + 2
→ 7x³ + 2x² - 2x + 15) Subtract 5x⁴ - 4x³ - 3x - 4 and -2x⁴ - 6x³ + 2x→ 5x⁴ - 4x³ - 3x - 4 - (-2x⁴ - 6x³ + 2x)
→ 5x⁴ - 4x³ - 3x - 4 + 2x⁴ + 6x³ - 2x
→ 5x⁴ + 2x⁴ - 4x³ + 6x³ - 3x - 2x - 4
→ 7x⁴ + 2x³ - 5x - 4
If 1 is added to eight times a number, the result is equal to 4 more than seven times the number. Find the number.
Question content area bottom
Part 1
Write the equation using x as the variable. Choose the correct equation below.
A.
8x+1=4(7x)
B.
1(8x)=4(7x)
C.
8x+1=7x+4
This is the correct answer.D.
8(x+1)=7(x+4)
E.
1(8x)=7x+4
Your answer is not correct.
Part 2
The number is enter your response here
.
Answer:
x=3
Step-by-step explanation:
apparently, brainly detection deleted my answer/explanation???
it wont let me show the steps, sorry
Given x is an integer, when x is rounded off to 1 significant figure, the answer is 40. Write as a fraction, the ratio of the least possible value of x to the largest possible value of x.
=======================================================
Explanation:
Let's consider the number 39
We have 2 nonzero digits here, so we have 2 significant figures (sig fig for short).
The goal is to round this to one sig fig instead of two. The question is: do we keep the 3 or keep the 9 instead?
The answer is that we keep the 3 and toss the 9, but the 9 will mean we bump the 3 up to 4.
So 39 bumps up to 40 where the 0 is not a sig fig (review the many sig fig rules about how to deal with zeros). The zero is just a placeholder to help determine the magnitude of the number.
In other words, 39 is closest to 40 rather than 30. We can think of "40" as "4 tens" and even drop the unit "tens" to focus solely on that 4. It would be implied we're talking about the tens unit from then on. You hopefully agree at this point we definitely have one sig fig to focus on.
----------------
If we repeated the last set of steps for the number 38, then it also rounds to 40 when rounding to one sig fig. The same goes for 37, 36, and 35.
The values 35, 36, 37, 38, 39 all round to 40 when rounding to one sig fig.
Doing the same type of logic, but on the upper side of 40, we have the values {41,42,43,44} also rounding to 40. The value 45 won't work because it rounds to 50 instead.
Therefore, x can be any of the following integers:
35,36,37,38,39,40,41,42,43,44
and they all round to 40 when rounding to one sig fig.
--------------
The last step is to divide the smallest item of the last list mentioned over the largest item
35/44
The numerator and denominator have no factors in common other than 1. So the fraction cannot be further reduced.
which of the following is the volume of the rectangular prism
Answer:
84x³ - 50x² - 126x - 40
Step-by-step explanation:
→ Multiply all the lengths together
( 4x + 2 ) ( 3x - 5 ) ( 7x + 4 ) = 84x³ - 50x² - 126x - 40
What is the surface area of this figure? Enter your answer in the box. ft² Complex solid composed of a triangular prism and a rectangular prism. The triangular prism is centered on the top of the rectangular prism. The rectangular prism bottom face is labeled 15 ft and 5 ft. The height of the rectangular prism is labeled 8 ft. The triangular base has an altitude drawn and labeled 7 ft. The sides of the triangle are labeled 9 ft, 9 ft, and 11 ft. The height of the triangular prism is 5 ft.
Answer:
a = side length a
b = side length b = bottom triangle base b
c = side length c
h = height of prism
H = height of bottom triangle
V = volume
Atot = total surface area = all sides
Alat = lateral surface area = all rectangular sides
Atop = top surface area = top triangle
Abot = bottom surface area = bottom triangle
A triangular prism is a geometric solid shape with a triangle as its base. It's a three-sided prism where the base and top are equal triangles and the remaining 3 sides are rectangles.
Calculator Use
This calculator finds the volume, surface area and height of a triangular prism. Surface area calculations include top, bottom, lateral sides and total surface area. Height is calculated from known volume or lateral surface area.
Units: Units are shown for convenience but do not affect calculations. Answers will be the same whether in feet, ft2, ft3, or meters, m2, m3, or any other unit measure.
Significant Figures: Choose the number of significant figures or leave on auto to let the calculator determine number precision.
Triangular Prism Formulas in terms of height and triangle side lengths a, b and c:
Volume of a Triangular Prism Formula
Finds the 3-dimensional space occupied by a triangular prism.
V=14h(c+a−b)(a+b−c)−−−−−−−−−−−−−−−−−√×(a+b+c)(b+c−a)−−−−−−−−−−−−−−−−−√
Top Surface Area of a Triangular Prism Formula
Finds the area contained by the triangular surface at the top of the prism. This is the same area as the bottom surface area.
Atop=14(a+b+c)(b+c−a)×(c+a−b)(a+b−c)−−−−−−−−−−−−−−−−−−−−−−−√
Bottom Surface Area of a Triangular Prism Formula
Finds the area contained by the triangular surface at the bottom of the prism. This is the same area as the top surface area.
Abot=14(a+b+c)(b+c−a)×(c+a−b)(a+b−c)−−−−−−−−−−−−−−−−−−−−−−−√
Lateral Surface Area of a Triangular Prism Formula
Finds the total area contained by the three rectangular sides of the prism. You can think of the lateral surface area as the total surface area of the prism minus the two triangular areas at the top and bottom of the prism.
Alat=h(a+b+c)
Total Surface Area of a Triangular Prism Formula
Finds the total area of all sides of a triangular prism. Total surface area of a prism includes the area of the top and bottom triangle sides of the prism, plus the area of all 3 rectangular sides.
Atot=Atop+Abot+Alat
Step-by-step explanation:
Height of a Triangular Prism Formula in Terms of Volume
Finds the height of a triangular prism by solving the Volume Formula for height. Height, h, is calculated from volume, V, and side lengths a, b and c.
h=4V÷[(c+a−b)(a+b−c)−−−−−−−−−−−−−−−−−√×(a+b+c)(b+c−a)−−−−−−−−−−−−−−−−−√]
Height of a Triangular Prism Formula in Terms of Lateral Surface Area
Finds the height of a triangular prism by solving the Lateral Surface Area Formula for height. Height, h, is calculated from lateral surface area, Alat, and side lengths a, b and c.
h=Alat(a+b+c)
#jerry Don is here#
The surface area of this figure will be 540 square feet.
What is the area?Surface area refers to the area of an open surface or the border of a multi-object, whereas the area of a plane region or plane field refers to the area of a form or planar material.
A complex solid made out of triangular and rectangular prisms. The triangular prism is centered on the rectangular prism's top.
The surface area of the shape is given as,
SA = 2(15 x 8 + 8 x 5) + 15 x 5 + 11 x 5 + 9 x 5 + 9 x 5
SA = 2(120 + 40) + 75 + 55 + 45 + 45
SA = 2 x 160 + 220
SA = 320 + 220
SA = 540 square feet
The surface area of this figure will be 540 square feet.
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The missing figure is attached below.
using A=Pe^rt solve
A=1,240,000
r=8%
t=30 years
what is P?
Answer:
P= 112,490.26207887
P= 112,490 (it should be a whole number for oliy represents the number of humans)
Step-by-step explanation:
1,240,000 = P e^(0.08×30)
1,240,000 = P e^(0.08×30)
________ ____________
e^(0.08×30) e^(0.08×30)
P = 112,490.26207887
or
1,240,000 = P e^(0.08×30)
____________ ____________
11.0231763806 11.0231763806
P = 112,490.26207887
Glenn can make 8 flyers in 35 mins.How long will it take him to me 50 flyers?
Answer:
175 minutes :)
have a good day !
Step-by-step explanation:
Please help. I need help.
Step-by-step explanation:
a local minimum is a point, where the function left and right of this point has higher functional values.
so,
(a) at x = -3 and at x = 4 there are local minimums.
(b) the minimum functional values at these points are 1 and -2
Which equation is equivalent to the given equation?
7m + 11 = : -4(2m + 3)
O A.
15 m = -23
B.
-m = -1
C.
-m = 1
D.
- 15 m = -23
Answer:
B
Step-by-step explanation:
7m+11= -4 x 2m + (-4 x 3)
7m +11 = -8m -12
7m +8m = -12-11
15m = -23
Answer:
A: 15m= -23
Step-by-step explanation:
So just to add some easy math here. What's 29×2?
Answer:
58
Step-by-step explanation:
29 x 2 = 58
Havea great day!!
Please rate and mark brainliest!!
Suppose you wrote a numerical expression for the
phrase "20 minus the product of 5 and 2." To evaluate
the expression, should you subtract or multiply first?
Explain.
Determine if 16 is rational or irrational and give a reason for your answer.
If f(–1) for the polynomial is –2, f(x) =2x^4 =2x-5 is -2 can you use the Factor Theorem to find the other factor?
The value of the function for the other factors will be -1.41 and - 3.90 respectively.
What is a factorization?It is a method for dividing a polynomial into parts, each of which will be multiplied. At this moment, the polynomial's value will be zero.
Given function;
f(x) =2x⁴ - 2x-5
The roots (zeros) are the
x values where the graph intersects the x-axis. To find the roots (zeros), replace y with 0 and solve for x.
x≈−1.089744,1.40581409
The value of the function for the other factors;
f(x) =2x⁴ - 2x-5
f(−1.089744) = 2(−1.089744)⁴-2(1.089744)-5
f(−1.089744) = -1.41
f(x) =2x⁴ - 2x-5
f(1.40581409) = 2(1.40581409)⁴-2(1.40581409)-5
f(−1.089744) = - 3.90
The value of the function for the other factors will be -1.41 and - 3.90 respectively.
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HELP ASAP.
What is the equation of the graphed line written in standard form?
Mean, median
What is the arithmetic mean of the following numbers?
8,10, 8, 5, 4, 7,5,10,8
Answer:
8
Step-by-step explanation:
Line up numbers by order:
4, 5, 5, 7, 8, 8, 8, 10, 10
The cross out one number on each side, leading to the median of 8
What color is the grass
what color is the grass
Green. Thanks for the points
What is the volume?
4 ft
7 ft
4 ft
Answer:
112
Step-by Step:4 times 4 is 16, and 16 times 7 is 112.
solve ~
[tex]x {}^{2} - 5x + 6 = 0[/tex]
ty! :)
Answer:
x^2-5x+6=0
By splitting the middle term
x^2-3x-2x+6=0
x(x-3)-2(x-3)=0
(x-2)(x-3)=0
so, roots are x=2or3.
Hope this helps uhh!!!
[tex]\huge\text{Hey there!}[/tex]
[tex]\mathsf{x^2 - 5x + 6 = 0}\\\\\large\text{FACTOR the LEFT SIDE of THE EQUATION}\\\\\mathsf{(x - 2)(x - 3) = 0}\\\\\large\text{SET the FACTORS to EQUAL to 0}\\\\\mathsf{x - 2 = 0\ or\ x - 3 = 0}\\\\\large\text{SIMPLIFY IT!}\\\\\mathsf{x = 2\ or\ x = 3}\\\\\huge\textbf{Therefore, your answer is: \boxed{\mathsf{x = 2\ or\ x = 3}}}\huge\checkmark[/tex]
[tex]\huge\text{Good luck on your assignment \& enjoy your day!}[/tex]
~[tex]\frak{Amphitrite1040:)}[/tex]I need help with this question
Answer:
The X-coordinate is -7
Step-by-step explanation:
10. Juanita is making necklaces to give as presents.
She plans to put 15 beads on each necklace.
Beads are sold in packages of 20. What is the
least number of packages she can buy to make
necklaces and have no beads left over?
This one is confusing can someone help
Answer:
A
Step-by-step explanation:
By the geometric mean theorem, 21/20=20/a -> 400/21.
And by the Pythagorean theorem,
[tex]b = \sqrt{(21 + \frac{400}{21}) - {29}^{2} } = \frac{580}{21} [/tex]
Find the value of x.
Answer:
127 degrees
Step-by-step explanation:
Angles in a triangle add up to 180
180 - 44 - 83 = 53
Angles on a straight line add up to 180
180 - 53 = 127
Answer:
im not really sure but x may be 127 degrees?
Step-by-step explanation:
so i dont really remember but a triangle is 180 degrees
to find x we must find the value in the triangle. lets say y
y + 44 + 83 = 180
y + 128 = 180
y = 180 - 127
y = 53
the angle in the triangle is 53 degrees. so a line is...also 180 degrees... um so we do
x + 53 = 180
x = 127
.........
A customer at a department store has $45.75. How many neckties can the customer buy if each tie costs $15.25? (ღ˘⌣˘ღ)
Answer:
The customer can buy 3 neckties
Step-by-step explanation
$45.75 divided by $15.25 is 3.
What is the answer to this question?
Answer:
you have to type it in so we can see it, but then ill solve for you
Step-by-step explanation:
find the outlier for the following numbers. 15,6,4,12,13,34,3,27,6,4,3,4,4,14,4
Answer:
hope its helps you !
A particle moves along the x-axis so that its acceleration a(t) is given by the graph above for all values of t where 0 must be true?
We need a acceleration time graph (Attached)
So when t is 0
a(t) has value in its y intercept .Find y intercept by observing the point where the line crosses y axis
Now the particle is given moving along x axis means on the x axis
So acceleration remains 0 as on x axis y intercept is 0 always
The average price of a movie ticket in the United States from 1980 to 2000 can be modeled by the expression, 2.75+0.10x, where x is the number of years since 1980. Which part of the expression corresponds to the cost of movie tickets in 1980?
Answer:
$2.75
Step-by-step explanation:
Since x represents the number of years since 1980 to 2000 that means the ticket prices increase by 0.10 (or 10 cents) each year. This means the base price in 1980 was $2.75. To prove it, we would plug in the correct information into the expression. The number of years since 1980 would be 0 so we would plug in 0 for x. 2.75 + 0.10(0) = $2.75.
HELPPPP
what are the values of the variable in the triangle below?
Answer:
2nd option
Step-by-step explanation:
using the cosine and sine ratios in the right triangle and the exact values
cos30° = [tex]\frac{\sqrt{3} }{2}[/tex] and sin30° = [tex]\frac{1}{2}[/tex] , then
cos30° = [tex]\frac{adjacent}{hypotenuse}[/tex] = [tex]\frac{x}{12\sqrt{3} }[/tex] = [tex]\frac{\sqrt{3} }{2}[/tex] ( cross- multiply )
2x = 12[tex]\sqrt{3}[/tex] × [tex]\sqrt{3}[/tex] = 36 ( divide both sides by 2 )
x = 18
and
sin30° = [tex]\frac{opposite}{hypotenuse}[/tex] = [tex]\frac{y}{12\sqrt{3} }[/tex] = [tex]\frac{1}{2}[/tex] ( cross- multiply )
2y = 12[tex]\sqrt{3}[/tex] ( divide both sides by 2 )
y = 6[tex]\sqrt{3}[/tex]
175.5 — 12.7 =
PLEASE HELP
Answer:
175.5-12.7=162.8
Answer:
I got you just plz rate a five star and Thanks Your answer sir is 162.8
Step-by-step explanation:
what is the measure of
Answer:
Angle B measures 116 degrees
Step-by-step explanation:
Because all the angles of a triangle add up to 180 degrees.
28 degrees + 36 degrees = 64 degrees
180 degrees - 64 degrees = 116 degrees
Answer:
116
Step-by-step explanation:
The sum of all the angles in a triangle will equal 180 degrees. SO, to find the missing angle, we have to add the two known angles together and subtract that from 180.
28 + 36 = 64
180 - 64 = 116
Therefore, the measure of the missing angle is 116 degrees.
I hope this helps! Have a lovely day! :)