Answer:
B
Step-by-step explanation:
Nesta questão, estamos interessados em calcular a distância percorrida se um jogador correr a uma velocidade de 43,2 km / h por 3 segundos.
Matematicamente; a distância percorrida = velocidade * tempo
O problema que temos aqui é que nossas unidades não são consistentes.
A melhor maneira de fazer isso é ter unidades consistentes em metros por segundos e segundos, pois nossa resposta está em metros.
Portanto, a conversão que precisamos fazer aqui é converter 43,2 km / h em metros por segundo Matematicamente, sabemos que existem 1000 m em um quilômetro.
Da mesma forma, uma vez que 60 segundos fazem um minuto e 60 minutos fazem uma hora, o número de segundos em uma hora é 60 * 60 = 3.600 segundos
Assim, convertendo 43,2 km / h em m / s, temos; (43,2 * 1000) / 3600 = 12 m / s
Portanto, a distância percorrida em metros seria agora; velocidade em m / s * tempo em segundos = 12 m / s * 3 segundos = 36 m
A video game is on sale for 15% off the list price of $50. How much is saved by buying the game at the sale price?
Answer:
7.5$Step-by-step explanation:
[tex]Original price = \$50\\Discount = 15\%\\\\\frac{15}{100} \times 50\\ = \$7.5\\[/tex]
If a truck travels at a constant speed and travels 238 miles in 3.5 hours then at what speed did the truck travel
Answer: Hi! Here we're trying to find the unit rate.
So we know that the truck travels 238 miles in 3.5 hours. To find the unit rate, the speed of miles per hour, all we need to do is divide the miles by the total time!
238 ÷ 3.5 = 68
So, the truck travels at 68mph.
Hope this helps!
(sin x) (2 sin x cos x)
Answer:
(sinx) (sin2x)
Step-by-step explanation:
2 sinx cosx = sin 2x
Find the value of $B - A$ if the graph of $Ax + By = 3$ passes through the point $(-7,2),$ and is parallel to the graph of $x + 3y = -5.$
Answer:
-6
Step-by-step explanation:
The parallel line can be written using the same x- and y-coefficients, but with a different constant:
x +3y = constant
For the line to go through the given point, the constant must be ...
(-7) +3(2) = constant
-1 = constant
In order for the constant to be +3 instead of -1, the entire equation must be multiplied by -3:
-3x -9y = 3 ⇒ A = -3, B = -9
Then the expression B-A is ...
B -A = (-9) -(-3) = -6
The value of B - A is -6.
What is 56/128 (Fraction) added to 1 (whole number)
best and accurate will be marked as brainliest
Answer:
23/16
Step-by-step explanation:
simplify, 56/128 = 7/16
7 + 16 over 16
add together 7 and 16= 23
=23/16
Answer:
[tex]\Large \boxed{\frac{23}{16} }[/tex]
Step-by-step explanation:
56/128 + 1
56/128 is a fraction.
1 is a whole number.
1 can be rewritten as a fraction.
1 = 128/128
56/128 + 128/128
Add the fractions since denominators are equal.
(56+128)/128
184/128
Simplify the fraction.
8(23)/8(16)
23/16
3(2c+d)-4(c-d)+d squared when c=1 d=3
please explain steps
Answer:
3(2c+d)-4(c-d)+d^2.
6c+3d-(4c+4d)+d^2.
6×1+3×3-4×1+4×3+9.
6+9-4+12+9=32.
If h(x)=-(square root) of x-3 (outside square root) plus 5, then what is the value of h(7)?
Answer:
h(7) = 3
Step-by-step explanation:
h(x) = -[tex]\sqrt{x-3}[/tex] + 5
h(7) = -[tex]\sqrt{(7)-3}[/tex] + 5
h(7) = -√4 + 5
h(7) = -2 + 5
h(7) = 3
PLEASE ANSWER ASAP! I REALLY NEED THIS ANSWER :( WILL MARK BRAINLIEST!Which sum will be irrational? a) 3+2 b) square root 19 + 7 over 2 c) 18 over 3 + 11 over 10,000 d) -6+(-3.251)
Answer:
[tex]\huge\boxed{Option \ B}[/tex]
Step-by-step explanation:
1) 3 + 2 = 5 [Since the result is a natural number, it is a rational number]
2) [tex]\sqrt{19} + \frac{7}{2}[/tex] [ It has a square root that cannot be simplified further so the sum of this is an irrational one ]
3) [tex]\frac{18}{3} + \frac{11}{10000}[/tex] [The sum of it is rational i.e. in the form of p/q ]
4) -6+ (-3.251) = -6-3.251 = -9.251 [ Since the result is an integer, it is a rational number]
Answer:
[tex]\Huge \boxed{\sqrt{19} +7}[/tex]
Step-by-step explanation:
Rational numbers can be integers, fractions, and whole numbers.
Rational numbers can be expressed as fractions p/q, where p and q are whole numbers.
[tex]3+2=5[/tex]
5 is whole number, it is a rational number.
[tex]\sqrt{19} +7= 11.358899....[/tex]
[tex]\sqrt{19}[/tex] is an irrational number, it cannot be expressed as a fraction p/q, where p and q are whole numbers.
[tex]\displaystyle \frac{18}{3} +\frac{11}{10000} =\frac{60011}{10000}[/tex]
The result is rational, it can be expressed as a fraction p/q, where p and q are whole numbers.
[tex]-6+(-3.251)=-9.251[/tex]
The result is rational, it can be expressed as a fraction p/q, where p and q are whole numbers.
Write the equation of the line that has the indicated slope and contains the indicated point. Express the final equation in standard form. m = 1/2 , (3, 4)
Answer:
x - 2y = - 2
Step-by-step explanation:
Given the following :
1/2 , (3, 4),
The equation of a line :
y = mx + c
m = slope ; c = gradient
m = 1/2
c = (y1 - x1) / 2
c = (4 - 3) / 2 = 1/2
Hence, y = 1/2x + 1/2
In standard form:
Ax + By = C
A and B integer Coefficient of x and y respectively
y = 1/2x + 1/2
1/2x - y = - 1/2
Multiply both sides by 2
x - 2y = - 2
Hence, standard form of the equation is :
x - 2y = - 2
A coin flipped 10 times and shows tails each time. Is there statistical significance to say that the coin is not a fair coin
Answer:
no because Chance is likely to account the result.
divide 5kg in the ratio 13:7
Answer:
1.75 kg
Step-by-step explanation:
13/20 of 5 = 13/20 x 5= 3.25 kg
and, 7/20 of 5 = 7/20 x 5=1.75 kg
so, divide, 5 kg in ration of 13:7 is:
3.25 kg : 1.75 kg
Answer:
3.25 Kg : 1.75 Kg
Step-by-step explanation:
Sum the parts of the ratio, 13 + 7 = 20 parts
Divide the amount by 20 to find the value of one part of the ratio.
5 Kg ÷ 20 = 0.25 Kg ← value of 1 part of the ratio, thus
13 parts = 13 × 0.25 =3.25 Kg
7 parts = 7 × 0.25 = 1.75 Kg
What is the solution to the proportion? Round the answer to the nearest tenth if necessary.
Answer:
problem please
Step-by-step explanation:
Translate the following phrase into an algebraic expression. Do not simplify. Use the variable names "X" or "y" to describe the unknowns.
the product of a number and eight
Answer:
8X
Step-by-step explanation:
it says the product, which is multiplication
of a number (lets call it X) and 8
so its 8*X
Answer:
8x
Step-by-step explanation:
it says the product, which is basically multiplication of a number (which lets call X) and 8
so its 8*X
HOPE I HELPED
PLS MARK BRAINLIEST
DESPERATELY TRYING TO LEVEL UP
✌ -ZYLYNN JADE ARDENNE
JUST A RANDOM GIRL WANTING TO HELP PEOPLE!
PEACE!
The entire graph of the function h is shown in the figure below. Write the domain and range of h using interval notation.
Answer:
(A) Domain : (-4, 3]
(B) Range : [ -2, 4)
What is the sum of -2-(-17)
Answer: Hi!
Remember, when you're subtracting a negative, that's equal to adding a positive. So -2-(-17) is actually equal to -2 + 17!
-2 + 17 = 15
The expression -2-(-17) is equal to 15.
Hope this helps!
what property is this 5(2+3)=(2+3)5
how to do this question plz answer my question plz
Answer:
Take the information given and create an equation that add up to 360.
Step-by-step explanation:
You might assume the smallest angle to be the given 55, so that would make the third term 120+55. The fourth angle is unknown, x
The equation sets up as
55+65+(55+120)+x = 360
Add all the numbers to get 295.
295+x=360
Subtract 360-295 = x
x=65
The four angles are 55°,65°,175° and 65°
I hope this answers your question!
Pls halp due today >_<. Thank you
Answer: A. -6.007, -2π, -√48
Step-by-step explanation:
-2π ≈ -6.28
-√48 ≈ -6.93
-6.007 = -6.007
-----------------------
-6.007>-6.28>-6.93
-6.007>-2π>-√48
Let the function f be continuous and differentiable for all x. Suppose you are given that f(−1)=−3, and that f'(x) for all values of x. Use the Mean Value Theorem to determine the largest possible value of f(5).
Answer:
Step-by-step explanation:
By MVT,
[tex]f'(c) = \frac{f(5)-f(-1)}{5-1}[/tex]
[tex]4f'(c)= f(5) + 3\rightarrow f(5) = 4f'(c) - 3[/tex]
Moreover, [tex]f'(x)\leq 4~~~~~~ \forall x,[/tex]
[tex]f(5) \leq 16 - 3 =13[/tex]
Hence the largest possible value of f(5) is 13
Are there rotations , transitions or reflections in a chair? ( Geometry 1 honors, I will mark brainly.) ASAP
Answer:
see below
Step-by-step explanation:
There are reflections in a chair. It really would depend on the chair. This chair would have a reflection along the y axis. I don't know of any chair with a translation.
Within a chair, we can have designs that are translations or rotations in the patterns of the fabric
Help pls 30 points given
Answer:
draw a diagonal line from (0,0) to (10,100) then find the output then you will get your answer
Step-by-step explanation:
easy 10 points and brainliest :)
Answer:
y =0
Step-by-step explanation:
If we are on the x axis, the x value can change, but the y value is zero
Answer:
y=0
Step-by-step explanation:
find the missing end point if H is the midpoint of PS. P(2,5) and H (3,4) find S (endpoint)
Answer:
(4,3)
Step-by-step explanation:
To find the midpoint add the end points and divide by 2
P(2,5) S ( sx, sy) and the midpoint is and H (3,4)
X coordinate
( 2+ sx) /2 = 3
Multiply each side by 2
2+sx = 3*2
2+sx = 6
Subtract 2
sx = 4
Y coordinate
( 5+ sy) /2 = 4
Multiply each side by 2
5+sy = 4*2
5+sy = 8
Subtract 5
sy = 3
The end point is
(4,3)
Answer:
[tex]\huge \boxed{\mathrm{S(4,3)}}[/tex]
Step-by-step explanation:
We can use the midpoint formula to solve for the endpoint.
[tex]\displaystyle m=(\frac{x_1+x_2 }{2} ,\frac{y_1+y_2}{2} )[/tex]
The midpoint of PS is H.
[tex]\displaystyle \frac{2+x_2 }{2} =3 \ \ \ \frac{5+y_2}{2} =4[/tex]
[tex]\displaystyle 2+x_2 =6 \ \ \ 5+y_2 =8[/tex]
[tex]x_2=4 \ \ \ y_2=3[/tex]
S(4, 3)
Find the midpoint of the segment with the following endpoints. (-4, -9) (-10,-3)
Answer:
Step-by-step explanation:
(x1, y1) = (-4 , -9) ; (x2, y2) = (-10, -3)
[tex]Midpoint(\frac{x_{1}+x_{2}}{2},\frac{y_{1}+y_{2}}{2})\\\\\\=(\frac{(-4)+(-10)}{2},\frac{(-9)+(-3)}{2})\\\\\\=(\frac{-14}{2},\frac{-12}{2})\\\\\\=(-7 , -6)[/tex]
If r(x) = 3x - 1 and s(x) = 2x + 1, which expression is equivalent to
(6)?
Answer: It would be all of the above.
Step-by-step explanation:
estimate the height of a tree using the following measurements:height of the rod:180 cm,length of the shadow of the rod is 116 cm,length of the shadow of the tree:840 cm,calculate the height of the tree
Answer:
1303.45 cm
Step-by-step explanation:
The triangles formed by a rod and its shadow and a tree and its shadow are similar triangles, so the ratios of their heights to the lengths of their shadows are equal.
Let x be the height of the tree. Setting the ratios equal, we get:
180/116 = x/840
Solve for x:
x = 840 * (180/116)
x ≈ 1303.45 cm
Emily was digging for gold. She dug a total of 40 feet deep into the ground. She dug 17% every minute. How far had she dug after 3 minutes?
Answer:
91 feet or 51
Step-by-step explanation:
17x 3= 51
51 + 40(what she dug before)
or it's just 51
Answer:
60.4 ft deep
Step-by-step explanation:
17% = .17
40 * .17 = 6.8 per hour
6.8 * 3 = 20.4
20.4 + 40 = 60.4 ft deep
W/5=3 what does w equal
Answer:
w=15
Step-by-step explanation:
w/5=3
multiply by 5 on both sides
w=3*5
∴ w=15
Answer:
15
Step-by-step explanation:
If something over 5 is 3, that means w divided by 5 equals 3.
That can bve translated to W=3 times 5, which is 15.
Therefore, W= 15.
Is (-2,0) a solution of the graphed inequality
Answer: NO
Step-by-step explanation:
The line that separates the two part is a dashed line which means that the point on the lines are not in the solution
EXTRA: ONLY IF IT IS A SOLID LINE, THE POINTS WILL BE A SOLUTION
(-2,0) is on the dashed line, so it is not a solution
In general, the value measured by the
variable __________
axis is called the dependent
Answer:
y
Step-by-step explanation:
When doing graphing, the y axis is dependent because its position relies on the placement of the x axis.