Answer:
9
Step-by-step explanation:
x Is -1/3 of y
-27x-1/3= 9
The value of x when y = -27 is 9.
y varies directly as x
Therefore,
y ∝ x
y = kx
where
k = constant of proportionality
Let's find k when y = 9 and x = -3
y = kx
9 = -3k
k = 9 / -3
k = -3
Let's find x when y = -27
y = kx
-27 = -3x
x = -27 / -3
x = 9
learn more on variation here: https://brainly.com/question/25391692?referrer=searchResults
solve 3p+2c is greater or equal to 120 and graph the solution
Answer:
equal to 120
3p+2c is equal to 120 and graph the solution.
Write the equation of the parabola that has the vertex at point (-2, -2) and passes through the point (-1, -1)
Answer:
y = (x+2)²-2
Step-by-step explanation:
Use the vertex form y = a(x-h)²+k. Plug in the vertex for h and k. Solve for a and you will get 1 for that value. You can check your answers by plugging in both of those points to make sure.
find the following square by using the identities
[tex](2xy + 5y) {?}^{2} [/tex]
Given:
Consider the given square is
[tex](2xy+5y)^2[/tex]
To find:
The value of given square by using the identities.
Solution:
We know that,
[tex](a+b)^2=a^2+2ab+b^2[/tex] ...(i)
We have,
[tex](2xy+5y)^2[/tex]
Using the identity (i), we get
[tex](2xy+5y)^2=(2xy)^2+2(2xy)(5y)+(5y)^2[/tex]
[tex](2xy+5y)^2=4x^2y^2+20xy^2+25y^2[/tex]
Therefore, the value of given square expression is [tex]4x^2y^2+20xy^2+25y^2[/tex].
Blue whales have an estimated weight of 3.6 x 104 pounds. James
weighs approximately 1.8 x 102 pounds. How many people who weigh the
same as James would it take to equal the weight of the blue whale?
What is the equation of the line that passes through (4, -1) and (-2, 3)?
Answer:
3--1/-2-4=4/-6=2/-3
y=-2/3x+b
-2*-2/3=4/3
3-4/3=5/3
y=-2/3x+5/3
Step-by-step explanation:
Answer:
[tex]\displaystyle y=-\frac{2}{3}x+\frac{5}{3}[/tex]
Step-by-step explanation:
We want to find the equation of the line that passes through the two points:
(4, -1) and (-2, 3).
First, we will find the slope of the two points. So:
[tex]\displaystyle m=\frac{3-(-1)}{-2-4}=\frac{4}{-6}=-\frac{2}{3}[/tex]
Now, we will use the point-slope form given by:
[tex]y-y_1=m(x-x_1)[/tex]
Use either point. I'm going to use (4, -1). So, substitute:
[tex]\displaystyle y-(-1)=-\frac{2}{3}(x-(4))[/tex]
Simplify and distribute:
[tex]\displaystyle y+1=-\frac{2}{3}x+\frac{8}{3}[/tex]
Subtract 1 from both sides. Therefore:
[tex]\displaystyle y=-\frac{2}{3}x+\frac{5}{3}[/tex]
Simplify the following expressions:
1/4 (24x + 8)
3/5 (10y - 5)
4m + 8p - 5m + 2p
6 ( j - 5) + 2 (3j + 5)
5 ( 3y + 2) - 4 ( y - 1)
Answer:
6x+2
6y+3
9+10
36+40
19+14
Sorry if this is wrong I recently learned this
helpppppppppppppppppppppppppppppppppppppppppppp
Answer:
lets talk first
Step-by-step explanation:
Answer:
4/13
Step-by-step explanation:
u just mutilpy 1/52 by 2 = 1/26 by 2 = 1/13 by 2= 2/13 by 2- 4/13
Pablo swims 1 length of a swimming pool. What unit would be best for measuring that length of the pool?
Answer:
kiloliters
Step-by-step explanation:
The amount of water a family uses in a year is a large amount of water - more than the amount of water in a pool! This means kiloliters would be the best unit of measurement.
PLWASE HELP ME THIS IS DUE TODAY
Find the area of the shaded region. Use 3.14 for it. 8 cm 8 cm
Calculate the scale factor for the original triangle and its
larger image. Show your working out.
Answer:
2
Step-by-step explanation:
8/4=2
have a good day..
Decide if the following statement is valid or invalid.
If I go to the park, then I will play baseball. If I play baseball, I will need a glove. I will go to the park tomorrow, I will need a glove.
Valid or Invalid ?
Answer:
valid
Step-by-step explanation:
If there is a 70% chance that it will snow today, what is the percent chance that it
will NOT snow today?
Answer:
30%
Step-by-step explanation:
100-70=30
Answer:
i dunno 30%?
Step-by-step explanation:
What should be the answer for 3 multiplied by x? If x is 9.
Answer:
27
Step-by-step explanation:
x = 9
3 x 9 = 27
Use the FOIL Method to find (x−4)(x+8).
Answer:
[tex]x^2 +4x - 32[/tex]
Step-by-step explanation:
By FOIL method, [tex](x-4)(x+8) = x \cdot x + x \cdot 8 + -4 \cdot x + -4 \cdot 8 = x^2 +4x - 32.[/tex]
Use special right triangles to solve for all the variables. Leave your answers in simplest radical form.
Answer:
Step-by-step explanation:
x=5[tex]\sqrt{2}[/tex] because it is an isosceles right triangle , as we have and angle of 45 and one of 90
y is the hypothenuse of the triangle
y^2=(5[tex]\sqrt{2}[/tex])^2+(5[tex]\sqrt{2}[/tex])^2=50+50=100
y=10
the larger triangle is 30-60-90
side opposite of 90 degrees is 2y
r=20
side opposite of 60 degrees is y[tex]\sqrt{3}[/tex]
z=10[tex]\sqrt{3}[/tex]
Only for (a) please!
Answer:
Efx=2300 may be it would help : )
Step-by-step explanation:
To find that u have to :
mass mid value(x) Number..(f) fx
10-29 19 32 608
30-39 9 38 342
40-49 9 64 576
50-59 9 35 315
60-69 9 22 198
70-99 29 9 . 261
Efx=2300
what is the answer to 3x + 4y - 2g + s
there isn't an answer since all the letters are different and you can't add or subtract or do anything to uncommon values. 3x+x = 4x but u can't do 3x +y because they're not in common
6. At the Winter Olympics, the ratio of Canadian medals to US to Russia was 1:8:5. If Russia won 25
medals, how many did Canada and US won?
Answer:
Step-by-step explanation:
Let x be the total number of medals won by the Russians.
The way to do this is to add the ratios together
1 + 8 + 5 = 14
(5/14) x = 25
Multiply by 14
5*x = 25 * 14
5x = 350
divide by 5
70
8/14 = x / 70
14x = 8 * 70
14x = 560
x = 560 / 14
x = 40
The USA won 40 medals.
1/14 = x / 70
14x = 70
x = 5
Canada Won 5 medals.
Check
Russia Won 25 medals
Canada Won 5 medals
USA Won 40 medals
Total 70
I need help with this probability question.
Answer:
20/total (u can calculate it)
Step-by-step explanation:
Number of dogs/Total number of pets
y=4x-6
2x-3y=8
if this problem is to be solved bye substitution, which is correct step
Answer:
Step-by-step explanation:
Answer:
d
Step-by-step explanation:
ok
MARKING BRAINLIEST!!
Answer:
6a and a(2*3) and 2(a+2a)
Step-by-step explanation:
2*3a=6a
There are 3 green marbles and 15 blue marbles in a bag. What is the ratio of green marbles to total number of marbles? Select all the equivalent ratios that represent this relationship.
Here is a rectangle all measurement are in centimetres the area is 48cm^2 find the value of y
Answer:
y = 3 cm
Step-by-step explanation:
We'll begin by calculating the value of x. This can be obtained as follow:
2x + 6 = 5x – 9 (opposite side of rectangle are equal)
2x + 6 = 5x – 9
Collect like terms
6 + 9 = 5x – 2x
15 = 3x
Divide both side by 3
x = 15 / 3
x = 5 cm
Next, we shall determine the length of the rectangle. This can be obtained as follow:
L = 2x + 6
x = 5 cm
L = 2(5) + 6
L = 10 + 6
L = 16 cm
Finally, we shall determine the value of y. This can be obtained as follow:
Length (L) = 16 cm
Width (W) = y =?
Area (A) = 48 cm²
A = L × W
48 = 16 × y
Divide both side by 16
y = 48 / 16
y = 3 cm
help me please I really need it.
Thank you
Answer:
D
Step-by-step explanation:
Answer:
D is ur answer
Step-by-step explanation:
Bye
HELP!! WILL GIVE 100 POINTS
Complete the following statement.
In 2/3 ÷ 4/5 the___ is 2/3
dividend
quotient
divisor
Answer:
2/3 is quotient.
Step-by-step explanation:
2/3÷4/5=(2×5)/(3×4)=10/12=5/6
Answer:
quotient
Step-by-step explanation:
If it is a divison problem your answer will be a quotient.
5,349 divided by 21????????
Answer: 254.714285714 or rounded to 255
Step-by-step explanation:
Have a good day:)
Answer:
254.71
Explanation:
5349 / 21 = 254.71
h + 6.3 = −6.3 solve for h
Answer:
0
Step-by-step explanation:
Hi there!
Let think about this...
-6.3-6.3=h
h+6.3=-6.3
negative plus positive is negative...
h=negative number..
6.3+6.3=12.6 add a negative point=-12.6
Final Result: -12.6
I would really appreciate if someone would help me i don’t understand
Answer:
D. 48
Step-by-step explanation:
In the experiment, 16/40 landed exactly on heads. If you do 16/40 * 3/3 = 48/120.
This means that you can estimate 48 of the next 120 trials have 2 coins showing heads.
find the length of x in simplest radical form with a rational denominator
Answer:
√3Step-by-step explanation:
[tex]\cos(30^o)=\dfrac{\sqrt3}2[/tex]
From triangle: [tex]\cos(30^o)=\dfrac x2[/tex]
Therefore:
[tex]\dfrac x2=\dfrac{\sqrt3}{2}\\\\x=\sqrt3[/tex]
Can someone simplify this equation and solve for x and y?
(2x-5)+(y-1)+x=169
Answer:
Answer
2x+3y=14,2x−3y=2
Adding :
2x+3y=14
2x−3y=2
__________
4x=16
x=4
∴xy=4×2
=8
2×4+3y=14
8+3y=14
3y=6
y=2
Step-by-step explanation:
here you go
Answer: The y-intercept is found by substituting known values for x and y in the equation and solving for b. the known values are (x,y) = (2,8.4) Equation of y = 4.2*x + b becomes 8.4 = 4.2*2 + b
Step-by-step explanation: