Step-by-step explanation:
y = 30
120y = 120×30 = 3600
√3600 = 60
The value of y is 60 which makes 120y a perfect square.
What is a perfect square?A perfect square is a number that represents the square of a natural number.
For example 9,16,36,64,121 etc
Here given that we have to calculate the value of y for which 120y will be a perfect square.
so 120y = n² where n is the natural number
For calculating the value of y first factorize 120
120= 2*2*2*3*5
= 2² * 2*3*5
=4 *30
from the above, it is clear that 120 can be written as 4*30 where 4 is a perfect square but 30 is not a perfect square.
So if we multiply 30 by 120 then the product has 2²*30² which will be a perfect square.
Therefore the value of y is 30 for which 120*30=n² where n=60.
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Please help me ASAP on this
Answer:
z=20
Step-by-step explanation:
(2z + 16) +124 =180
2z + 16 +124
2z + 140 = 180
2z -140 -140
2z = 40
z = 20
Solve for x.
9 - 3x = 1 + x
Answer:
x=2
Step-by-step explanation:
9
−
3
=
1
+
{\color{#c92786}{9-3x}}=1+x
9−3x=1+x
−
3
+
9
=
1
+
Answer:
2
Step-by-step explanation:
9-3x=1+x
9-3x-x=1
9-4x=1
4x=9-1
4x=8
x=8/4
x=2
The vertex of this parabola is at (-5, 4). Which of the following could be its
equation?
(-5, 4)
A. y* -(x + 5)2 - 4
B. y = -(x - 5)2 - 4
C. y = -(x - 5)2 + 4
D. y = -(x + 5)2 + 4
Answer:
D
Step-by-step explanation:
Because the x-coordinate of the vertex is negative, only A or D could be the correct equation for this parabola. D is correct because its constant (4) matches the y-coordinate of the vertex (-5, 4).
Answer:
y = -(x + 5)2 + 4
Step-by-step explanation:
Which of the following is/are correct in the case of free fall motion?
(I) Free fall is a linear motion.
(II) Free fall is a uniformly accelerated motion.
(III) Free fall is a motion under gravity alone.
A) I and II
B) I only
C) II only
D) I, II, and III
Answer:
D) all are true
I think it's helps you
5. Identify each relation that is a function.
Answer:
Looks like we got the same packet so i'll answer all of the questions you wrote on it.
The answers are: B, C, and F
Answer:
B C and F
Step-by-step explanation:
PLS HELP ME I WILL GIVE BRAIN THINGY
What is an equation of the line that passes through the point
(
6
,
−
4
)
(6,−4) and is perpendicular to the line
2
x
−
y
=
5
2x−y=5
Answer:
x + 2y = -2
Step-by-step explanation:
Well let's examine the relation between x and y in a perpendicular line.
We can use the fact that for a line Ax + By = C, any line with equation Bx + (-A)y = D is perpendicular (swapping A and B gives a mirror image with respect to the line x=y and changing one of the signs gives a mirror image with respect to axis x or y. Those two together give a perpendicular line).
So we're looking for a line with equation x + 2y = D
We know what it passes through the point (6, -4), so let's input it into the equation x + 2y = D
6 + 2*(-4) = D
6 - 8 = D
D = -2
So the equation is x + 2y = -2
note that 2x + 4y = -4
or any other multiple also works.
Translate the sentence into an equation.
Two more than the quotient of a number and 9 is equal to 8.
Answer:
it would be (9/n )+ 2 = 8
Step-by-step explanation:
I hope this is right :)))
HELP! I NEED HELP ASAP
Step-by-step explanation:
yes the 10' wave is the outlier
Answer:
The correct option is .The 10 foot wave is an outlier.
Step-by-step explanation:
Subtracting numbers is the same as adding it's opposite. Use this understanding to complete each of the equation below -5-(-7)=-5+
PLEASE ANSWER THIS IF YOU KNOW THE ANSWER
PLEASE GIVE ALL THE ANSWERS 65 POINTS
Answer:
the correct answer is 7
Step-by-step explanation:
-5-(-7) = -5 +
two minus is plus so it is
-5 + 7
HELP!!!!!A semi-circular part is removed from a rectangle.
The area of the shaded portion is approx. 3041.4 cm2.
Answer:
It is true
Step-by-step explanation:
the area of the rectangle is
72•66=4752
the area of the semi circle is
π33^2= 3421.19/2= 1710.595
4752-1710.595= 3041.405
rounded to nearest tenth
3041.4
What is the missing length?
A truck requires 35 liters of petrol to travel a distance of
450km.Find
The amount that the truck owner has to pay to travel distance of
1050 km if a liter of petrol costs $2.95.
Answer:
$240.92
Step-by-step explanation:
From the question,
The distance traveled by the truck is directly proportional to the amount of petrol used.
I.e,
d ∝ v............... Equation 1
d = kv
d/v = k
d₁/v₁ = d₂/v₂............. Equation 2
Where d₁ and d₂ are initial and final distance respectively, v₁ and v₂ are initial and final amount of petrol used respectively.
Given: d₁ = 450 km, d₂ = 1050 km, v₁ = 35 liters
Substitute into equation 2 and solve for v₂
450/35 = 1050/v₂
v₂ = (1050×35)/450
v₂ = 36750/450
v₂ = 81.67 Liters.
If a liter of petrol cost $2.95,
Then,
81.67 liters will cost (81.67×$2.95) = $240.92
HELP WHICH ARE CORRECT ??
Plzz help i really need it will mark brainiest. don't do it for points plzz
Answer:
A
Step-by-step explaanation:
Answer: i think its c
Step-by-step explanation:
June walked 6 3/4 feet today, and Julio Walked 4 1/2 feet. How many times the length of Julio's walk was June's walk?
Answer:
1 1/2
Step-by-step explanation:
6 3/4 ÷ 4 1/2
= 27/4 ÷ 9/2
= 27/4 × 2/9
= 3/2
= 1 1/2
Find the missing side
5
1.3
6.2
8.2
Answer:
I think it is 1.3
Step-by-step explanation:
If you answer I will mark you Brainliest!
Answer:
divide the figure into two parts.
area of triangle = 1/2×base×height
area of triangle = 1/2×3×3
area pf triangle = 4.5 units²
area of square = side²
area of square = 3²
area of square = 9unit²
Answer:
The figure is made up of a square and a triangle.
We will find both of their areas separately and then combining them will give us the required area.
Area of the triangle : ½ × base × height
= ½ × 3 × 3
= ½ × 9
= 4.5 units²
Area of the square : (side)²
= 3²
= 9 units²
Now, required area = (4.5 + 9) units²
= 13.5 units²
Help!!! The graph represents (x , y)- pairs that make the equation y = 2x true?
please help me !!!!!!!!!
Answer:
D. The probability of selecting an orange is ³/₅.
Step-by-step explanation:
A is incorrect because there would be 4 apples combined (3 from bag one, 1 from bag two). That makes the chance of selecting an apple 2/5 (40%), not 3/10 (30%).
B & C are incorrect because 4/10 (40%) is less than 6/10 (60%)
That leaves D, which state that you have a 60% (3/5) chance selecting an orange, as our answer. That is correct as 3/5 = 6/10 = 60%.
a classroom measures 32 ft long, 25ft wide, and 9ft high. The comb9ned area of doors and windows is 140ft. What is the remaining area of the four walls of the room
Answer:
886 ft^2
Step-by-step explanation:
2×l×h+2×b×h=2h(l+b)
2×9(32+25)=18×57=1026 ft^2
1026-140=886ft^2
1/2n+3=6
what does n equal?
Answer:
[tex]n = \frac{1}{6} [/tex]
Step-by-step explanation:
[tex] \frac{1}{2n} + 3 = 6[/tex]
[tex] \frac{1}{2n} = 6 - 3[/tex]
[tex] \frac{1}{2n} = 3[/tex]
[tex]1 = 6n[/tex]
[tex]n = \frac{1}{6} [/tex]
Find the area of the given shape?
Answer:
28
Step-by-step explanation:
Area for a triangle is
1/2(bxh) B-Base H-Height
So
1/2(7x8)
1/2(56)
=28
PLSS HELP GIVING 5 POINTS PLUS BRAINLIEST
Caleb throws a ball three times for his dog Leo. For each throw, Leo either
catches the ball or misses it. Identify the sample space (the correct list of
possible outcomes) for the results.
C = catch, M = miss
The notation CMC means Leo caught the first ball, missed the second one,
and caught the third one.
A. {CCCC, CCMM, MMMM}
B. {CCC, CCM, CMC, MCC, MMC, MCM, CMM, MMM}
C. {CCC, CMC, MMM}
O O
D. {CC, CM, MC, MM}
Answer:its B. I took the test
Step-by-step explanation:
Christina is making a necklace using beads. She has 20 red, 14 blue, 10 purple, 28 green, and 8 yellow beads. She randomly chooses a bead to start the necklace. What is the probability of Christina choosing a bead that is not green?
Answer: 13/20
Step-by-step explanation:
Total number of beads: 20+14+10+28+8=80
Green beads out of the total 80: 28
Non-green beads out of the total 80: 80-28=52
The probability of Christina choosing a bead that is not green is the number if non-green beads divided by the total number of beads, so 52/80, which simplifies to 13/20
The probability of Christina choosing a bead that is not green is the number if non-green beads divided by the total number of beads is 13/20.
What is the probability?It is a branch of mathematics that deals with the occurrence of a random event. The value is expressed from zero to one.
Total number of beads
=20+14+10+28+8
=80
Green beads out of the total 80: 28
Non-green beads out of the total 80:
=80-28
=52
The probability of Christina choosing a bead that is not green is the number if non-green beads divided by the total number of beads, so 52/80, which simplifies to 13/20.
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Please help no links
Answer:
x=5 y=-6
Step-by-step explanation:
3x+y=9 ------eqn1
y=4-2x -------eqn2
using substitution
put y=4-2x into eqn1
3x+4-2x=9
x=5
put x=5 into eqn2
y=4-2(5)
y=4-10
y=-6
find the area of the rhombus. 19-24
3.6
2.5
7.25in
Answer:
To answer this question I need the values of the rhombus. like the p and the q.
Step-by-step explanation:
Jar contains 8 green, 4 blue, 10 red, and 2 yellow skittles. A skittle is randomly drawn replaced then another is drawn. Find each probability
Answer:
green= 33.33%
blue= 16.7%
red=41.6%
yellow=8.33%
Step-by-step explanation:
Total 24 skittles
Divide them
green
8/24
blue
4/24
red
10/24
yellow
2/24
Answer:
a) 5/144
b) 1/18
c) 1/36
d) 25/144
Step-by-step explanation:
a) 10/24 times 2/24
b) 4/24 times 8/24
c) 4/24 times 4/24
d) 10/24 times 10/24
The vertices of a figure are given. Draw the figure and its image after a dilation with the given scale factor. Then identify the type of dilation.
The vertices of a figure are given. Draw the figure and its image after a dilation with the given scale factor. Then identify the type of dilation.
Answer:
what is the picture????
Please help me! I'm stuck and I don't know what to do!!! By the way, please don't insert a link, as I cannot reach them.
Answer:
study more so you can understand