Answer:
Hello! have a good day!
Exact Form:
10/27
Decimal Form:
0.370
In assuming we are doing (2/3)*(5/9) not 2/(3*5)/9 we can conclude that the answer is 10/27 by multiplying the numerator and denominator of the 2 fractions.
Also I'm doing very well and it would make my day even better if you give me brainlliest.
1)The equation y=−4.9x2+8.82x+1.96 represents the height of the trajectory of a ball x seconds after it was released. The solutions to 0=−4.9x2+8.82x+1.96 are x=−0.2 and x=2. Which of these solutions represents the time it takes the ball to hit the ground?(1 point)
a) both x=−0.2 and x=2
b) x=−0.2
c) x=2
d) Neither of the solutions represents the correct time.
2) The equation y=−4.9x^2+19.5x+1.75 represents the height of the trajectory of a ball x seconds after it was released. At what time is the ball 10 meters above the ground?(1 point)
a) The ball never is never 10 meters above the ground.
b) approximately 0.5 seconds and 3.5 seconds
c) approximately 3.5 seconds
d) approximately 0.5 seconds
A baseball player throws a baseball directly upward into the air. The height of the ball is given by the equation y=−4.9x^2+89.5x+1.75 where y is the height in meters and x is the time in seconds. Is this equation a reasonable model for the ball's trajectory? Explain(1 point)
a) No, the initial height is 1.75 meters, which is much taller than any person.
b) No, the equation does not match the model for projectile motion.
c) No, the initial velocity would be 89.5 meters per second. This is approximately 200 miles per hour, which is faster than any human can throw a baseball.
d) Yes, the equation matches the model for projectile motion, so it is a reasonable model for the ball's trajectory.
The equation y=−16x2+275 models the height of a projectile where y is the height in meters and x is the time in seconds. Which of the following situations is the real-world scenario that is best modeled by the given equation?(1 point)
a) A ball being dropped from shoulder height.
b) A child tossing a ball into the air.
c) A stone being dropped off of the edge of a cliff.
d) A tennis ball being launched into the air by a tennis racket.
Answer:
Number 1 is A
Step-by-step explanation:
3/32 in lowest terms
Answer:
It is already simplified
Step-by-step explanation:
0.09375 in decimals
Given the graph, determine whether (a) the degree is even or odd and (b) the leading coefficient is positive or negative.
you do 90 sit-ups in 2 minutes .Your friend does 126 sit-ups in 2.8 minutes .Do these rates form a proportion?
Brainiest
Answer:
Yes
Step-by-step explanation:
90/2 = 45
126/2.8 = 45
Therefore these rates do form a proportion
Step-by-step explanation:
so we will find the number of sit-ups the friend should do, if it is a direct proportion
let the number of friend's sit-ups be x
2 : 2.8
90 : x
cross multiply
we get x=126 sit-ups
so the rates do form a (direct) proportion
if in ∆ABC, angle C=90 then cos(A+B )=
Answer:
180
Step-by-step explanation:
Cause all together this angel would equal 360.
90 is one side of the triangle and a and b will both be 45 so 45+45+90
Pythagorean theorem - please help
answer:
x = 4[tex]\sqrt{2}[/tex] or 5.6568
step-by-step explanation:
know the formula and plug informula: a^2 + b^2 = c^2
now plug in what we havewhatever the RIGHT ANGLE points to is the HYPOTENUSE or cthe other two sides are the "legs" or a and ba^2 + b^2 = c^2
7^2 + b^2 = 9^2
49 + b^2 = 81
b^2 = 32
b = 4[tex]\sqrt{2}[/tex]
in this case, b would be used as xx = 4[tex]\sqrt{2}[/tex] or 5.6568 (exact value)
y - 7.74 = 9.1
solve for y
Answer:
y = 16.84
Step-by-step explanation:
y - 7.74 = 9.1
=> y = 9.1 + 7.74
=> y = 16.84
Find the distance between C(-5,4) and Q(2,0)
9514 1404 393
Answer:
√65 ≈ 8.06
Step-by-step explanation:
The distance formula is used for the purpose.
d = √((x2 -x1)² +(y2 -y1)²)
d = √((2 -(-5))² +(0 -4)²) = √(7² +(-4)²) = √(49 +16)
d = √65 ≈ 8.0622577
The distance between C and Q is √65, about 8.06 units.
Two trains, Train A and Train B, weigh a total of 443 tons. Train A is heavier than Train B. The difference of their weights is 279 tons. What is the weight of each train?
Answer:
164
Step-by-step explanation:
443-279
=164
Answer:
443 - 279 = 164
Step-by-step explanation:
so train A should be 279 pounds
and train B should be 164 pounds
So sorry i might be wrong i tried my best
simple word problem, I’ll mark brainliest try to explain ur answer to please!
Answer:
26.8
Step-by-step explanation:
x/145 = 18.5/100
cross-multiply:
100x = 2682.5
x = 26.8
Answer:
26.825
Step-by-step explanation:
when you find 18.5 percent of 145 pounds you will get your answer. hope this helps
Can someone please explain to me step by step how to solve this problem ..
Answer:
4
Step-by-step explanation:
1. 8 to the power 2/3, can be just told as take the square of 8 and perform cube root or perform cube root of 8 and then square the result.
2. 8^2 = 64
3 .3√64
4. 4. 3√8=2
5.2^2 = 4.
Prove the Difference of Two Cubes Identity
Explain how you can prove the difference of two
cubes identity
2-12 = (a - b)(a + ab +62
The difference between forty- six and a number
Answer:
d = 46 - n
Step-by-step explanation:
i'm assuming you need an equation
Solving systems of equations using substitution with both equations in y=mx+b PLEASE HELP ME I WILL GIVE BRAINLIEST. I WILL HAVE TO DO APE.X IF I DONT GET THESE RIGHT. THANKYOU!
1.
y = x + 11 y = 1 + 11
y = 12x y = 12
x + 11 = 12x
11 = 11x
x = 1
(1, 12)
2.
y = 2x - 1
y = x + 1
2x - 1 = x + 1
x = 2
y = 2(2) - 1
y = 3
(2, 3)
3.
4x + 6 = 2x +2
2x = - 4
x = -2
y = 2(-2) + 2
y = -2
(-2, -2)
4.
-4x + 10 = -2x
-2x = - 10
x = 5
y = - 10
(5, -10)
5.
3x - 2 = -2x + 3
5x = 5
x = 1
y = 1
(1, 1)
6.
-7x - 4 = x + 4
-8x = 8
x = -1
y = 3
(-1, 3)
The table below displays data that Stacy collected. What type of association exist between the data
Step-by-step explanation:
-2/3. for every 3 it increase it goes down by 2
Hola, ayudenme a hacer esto por fa, doy muchos puntos u,u
Answer: Hi, help me do this by fa, I give a lot of points u,u
Step-by-step explanation:
Answer:
de donde viene la hoja asi la investigo y te digo las respuestas :)
Step-by-step explanation:
Factorise:a(a-2)-b(b-2)
Step-by-step explanation:
hope u got it...
thank you
Noah went shopping for a new video game because of a sale. The price on the tag was $32, but Noah paid $22.40 before tax. Find the percent discount.
Answer:
30%
Step-by-step explanation:
Delta math
Find the slope of the line through (6. 2) and (4, -2)
A. 0
B. 1/2
C. Undefined
D. 2
Answer:
2
Step-by-step explanation:
[tex]m=\frac{y2-y1}{x2-x1} =\frac{2-(-2)}{6-4} =\frac{4}{2} =2[/tex]
Which expression is equivalent to 5x +10y-15?
A. 5(x-2y-3
B. 5(x5y-10
C. 5(x+2y-3
D. 5(x2y-15
Answer:
C
Step-by-step explanation:
Answer:
its a hehehehehehhehehe\
Step-by-step explanation:
A diagonal walkway cuts through a park bordered by two parallel streets. The parks department plans to add an addition walkway as indicated by the dashed line segment in the figure.
Answer:
x = 42
Step-by-step explanation:
180-132 = 48
180 - 90 - 48 = 42
The value of x° is 42° .
What is alternate interior angles?Alternate interior angles are the angles formed when a transversal intersects two coplanar lines. They lie on the inner side of the parallel lines but on the opposite sides of the transversal.
The sum of the angles formed on the same side of the transversal which are inside the two parallel lines is always equal to 180°
According to the question
A diagonal walkway cuts through a park bordered by two parallel streets.
I.e street are parallel to each other
and walkway is transversal line between street
Angle at meeting point of street and walkway = 132°
As, sum of alternate interior angles all always = 180°
Now,
Same side of walkway other angle between street and walkway is
= 180° - 132°
= 48°
As, Sum of angle of triangle is 180° .
90° + 48° + x° = 180°
x° = 42°
Hence, the value of x° is 42° .
To know more about alternate interior angles here:
https://brainly.com/question/18304277
#SPJ2
In the following figure ABC~XYZ. Based on the
given information find AC.
A) 18cm
B) 14cm
C) 10cm
D) 7cm
Answer:
A.18cm
Step-by-step explanation:
hope it can help
goodluck
Out of 80 students, 60% of them passed. How many students passed the test?
How many degrees Celsius is 51°F?
Answer:
10.56
Step-by-step explanation:
51°F − 32) × 5/9 = 10.56°C
Answer:
10.56°C
Step-by-step explanation:
Hope this helps!
Please help me this is timed
Answer:
b. 5, 2
Step-by-step explanation:
5+2= 7
5-2= 3
What benchmark would you round the following mixed number to?*
1 1/6 choices: 11/12,1,2,21/2
Answer:
11/12 is the answer
If HF=4x+9, EF=5x + 3, and FG EH, solve for X (pictures included)
Answer:
[tex]\boxed{\textsf{ The value of x is \textbf{6}}}.[/tex]
Step-by-step explanation:
Given that in the given figure , HF = 4x + 9 and EF = 5x +3 . And FG [tex]\perp[/tex] EH . we need to find the value of x .
And here the two triangles must be congruent to each other . That is ,
[tex]\sf \triangle EGF \cong HGF [/tex]
So we can say that
EF = HF ( by cpct )Using this equation we have ,
[tex]\sf\implies EF = HF \\\\\sf\implies 4x +9=5x+3\\\\\sf\implies 4x - 5x = 3-9\\\\\sf\implies -x=-6\\\\\sf\implies \boxed{\pink{\sf x = 6}}[/tex]
a class has 28 students the ratio of girls to boys is 4:3 how many girls are in the class
Answer:
What are the answer choices?
Step-by-step explanation:
Answer:
16 girls
because 4+3=7 when you add the ratios which is the total number of parts in the ratio.
then you divide 28/7=4 which is equal to one part
then you multiply 4x4 because you are trying to find out the number of girls and there are 4 part girls in the ratio. 4x4=16 so therefore there are 16 girls in the class
The world's fastest man, Usain Bolt,
sprinted an amazing 62. 64 meters in 6
seconds. At this rate, how many meters
did Usain Bolt travel in 4 seconds? 1
Answer:
41.76 meters
Step-by-step explanation:
Usain Bolt's speed = [tex]\frac{62.64}{6}[/tex]= 10.44m/s
=> In 4 seconds Usain Bold can run: 10.44 x 4 = 41.76m
what is the answer to this question you will need to be good at maths and you need to know how to do inequalities
28>6x-2
Answer:
5 > x
Step-by-step explanation:
28 > 6x -2
(add 2 to both sides)
30 > 6x
(divide through by 6)
5 > x
Answer:
x < 5
Step-by-step explanation:
Given
28 > 6x - 2 ( add 2 to both sides )
30 > 6x ( divide both sides by 6 )
5 > x , that is
x < 5