Answer: 27 and 18
Step-by-step explanation:
x - y = 9 → x = 9 + y
3y = 2x
3y = 2(9 + y)
3y = 18 + 2y
3y - 2y = 18
y = 18
2x = 3(18)
2x = 54
x = 27
x - y = 9
27 - 18 = 9
9 = 9
2x^2(6x^3-3x+1) need help
Answer:
12x^5-6x^3+2x^2
Step-by-step explanation:
between which two consecutive whole numbers does the square root of 58 lie between
Answer:
7² and 8²
Step-by-step explanation:
The square root of 58 rounded to the nearest tenth is 7.6², which lies between 7² and 8²
Solve each inequality.
-6 + 2a ≥ 22 OR 10 + 3a ≤ 22
Find the square root of 529.
the Square root of 529 is 23
Which of the following is equal to 3,409?
A. (3 x 104) + (4 x 10²) + (9 x 10')
B. (3 x 103) + (4 x 102) + (9 x 10°)
.
C (3 x 10 ) + (4 x 10') + (9 x 10')
D. (3 x 10) + (4 x 102) + (9 x 10')
Answer:
B
Step-by-step explanation:
3,409 = 3000+400+9
= (3× 10³)+ (4×10²)+(9×10°)
the answer is B
A recipe uses 5 cups of milk to make 30 servings. If the same amount of milk is used for each serving, how many servings can be made from one pint
Answer: 12 servings with one pint.
1 pint = 2 cups
Step-by-step explanation:
5 cups make 30 servings, 2 cups make x servings
5/30 = 2/x (cross multiplication)
(30 * 2)/5 = 12
8
Mike studied for 0.8 of an
hour. What is this decimal
as a fraction, in lowest
terms?
Answer:
8/10 = 4/5
Step-by-step explanation:
GIVING OUT BRAINLIEST! Please help!!!
Answer:
Step-by-step explanation:
Answer:
Step-by-step explanation:
Help me with this please I’d appreciate it
The coordinates of Point [tex]D'[/tex] are [tex](42, 0)[/tex]
[tex]\text{Algebraic Representation: } (x,y) \to (7x,7y)[/tex]
2.4(0.81)
what do i do to solve this problem?? do i multiply and what are the steps
Answer:
1.944
Step-by-step explanation:
if the problem was written just like the 2.4(0.81) then yes you multiply
Please help as soon as possible.. I don5 understand..
Answer:
slope is -3Hope it helps ..
why you posting same type of questions continuously
can uh help me sloving me thesequestion step by step
Answer:
12/2 38 92/5a 2b
Step-by-step explanation:
Solve the equation for x: x/3+7=-5
A. -36
B. -22
C. -6
D. -4
Answer:
x = -36
Step-by-step explanation:
x/3+7=-5
Subtract 7 from each side
x/3+7-7=-5-7
x/3 = -12
Multiply each side by 3
x/3*3 = -12*3
x = -36
Answer:
A
Step-by-step explanation:
[tex]\frac{x}{3}[/tex] + 7 = - 5 ( multiply through by 3 to clear the fraction )
x + 21 = - 15 ( subtract 21 from both sides )
x = - 36 → A
If a block has a volume of 216 cm³ in length and width of sides respectively 12 cm and 6 cm. What is the height of the cuboid?
Step-by-step explanation:
I hope it helped U
For a project in her Geometry class, Madelyn uses a mirror on the ground to measure
the height of her school's flagpole. She walks a distance of 8.75 meters from her
school, then places a mirror on flat on the ground, marked with an X at the center.
She then steps 1.7 meters to the other side of the mirror, until she can see the top of
the flagpole clearly marked in the X. Her partner measures the distance from her eyes
to the ground to be 1.65 meters. How tall is the flagpole? Round your answer to the
nearest hundredth of a meter.
1.65 m
1.
1.7 m
-8.75 m
An image is always formed at the back of a mirror. Thus, the appropriate option is D. -8.75 m. The flagpole is 8.75 m tall.
Let the angle of depression from Madelyn's point of view be represented by θ. Then applying the required trigonometric function, we have;
Tan θ = [tex]\frac{opposite}{adjacent}[/tex]
= [tex]\frac{1.65}{1.7}[/tex]
Tan θ = 0.9706
θ = [tex]Tan^{-1}[/tex] 0.9706
= [tex]44.2^{o}[/tex]
θ = [tex]44.2^{o}[/tex]
Let the height of the flag be represented by h. And for a given mirror, the angle of incidence is equal to that of reflection. Then;
Tan θ = [tex]\frac{opposite}{adjacent}[/tex]
= [tex]\frac{h}{8.75}[/tex]
0.9706 = [tex]\frac{h}{8.75}[/tex]
h = 0.9706 x 8.75
= 8.49275
h = 8.5 m
Since the image is formed at the back of the mirror, then the flagpole is 8.5 m.
Therefore the appropriate answer is option D. -8.75 m
Visit: https://brainly.com/question/14374661
Answer:
10.77
Step-by-step explanation:
i did it
Solve to find the variable 8t+4(20.55-t)=138
The diagram shows a rectangle ABCD. The point A is (2, 14), B is (−2, 8) and C lies on the x-axis. Find
(i) the equation of BC,
(ii) find coordinates of C and D
Answer:
Step-by-step explanation:
since AB and BC are perpendicular so AB.BC=0, (scalar product)
AB=(-4, -6), and BC=(xc+2, yc-8)
AB.BC= -4x-8-6y+48 =0
so the equation of BC is 2x+3y-20=0
C is on the line BC, so 2xc+3yc-20=0, but yc=0, so xc=20/2=10
AB and CD are parallel, so det(AB, CD)=0
AB and AD are perpendicular so AB.AD=0
AB=(-4, -6) and CD =(x-10, y), AD= (x-2, y-14)
det(AB, CD)=0
x-10-y = 0 equivalent to x-y = -10
AB.AD=0
-4x+8-6y+84=0 equivalent to 2x+3y=44
let's solve
x-y = -10
2x+3y=44
-5y = -64, y = 64/5, x= -10+64/5=14/5
finally D(14/5, 64/5)
Write this expression in its most simplified, factored form.
12x2y − 32xy + 8y
Answer:
[tex]4y(3x^2-8x+2)[/tex]
Step-by-step explanation:
Factor [tex]4y[/tex] out of [tex]12x^2y-32xy+8y[/tex]
Answer:
4y(3x^2-8x+2)
Step-by-step explanation:
need some help please
Answer:
-0.83 is the answer
Step-by-step explanation:
hope it was useful
point G of a line segment GF is at coordinate (2,5). The midpoint for line GF is at (5,1). What are the coordinates of point F
Answer:
5 and 1
Step-by-step explanation:
GF GF
2;5 5;1
the number that is straight to F are its coordinates .
5 and 1.
what is the Domain of this?
Answer: The domain is 3/7, -6, and 4.
Step-by-step explanation:
In the case of rational expressions, we can input any value except for those that make the denominator equal to 0 (since division by 0 is undefined). In other words, the domain of a rational expression includes all real numbers except for those that make its denominator zero.
As the other answer mentioned, x = -6 and x = 4 are not in the domain, since they both make the denominator equal to zero, and thus the overall expression undefined. But x = 3/7 is allowed, since f (3/7) = 0.
Every other real number is also acceptable.
In interval notation, the domain is then
[tex](-\infty,-6) \cup (-6,4) \cup (4, \infty)[/tex]
Find the value of DE.
Answer:
9
Step-by-step explanation:
DE = AE-AD
= 27-18
= 9
THANKS
What fraction of 2 cubic yards is 4 cubic feet?
Answer:
27 cubic feet
Step-by-step explanation:
se know that because one yard is 3x3x3 27
Find the value of x
(look at screenshot below)
Answer:
x = 25
Step-by-step explanation:
120 = 70 + 2x
120 - 70 = (70 - 70) + 2x
50 = 2x
50/2 = 2x/2
x = 25
Answer:
Answer:
x = 25
explanation:
120 = 70 + 2x
120 - 70 = (70 - 70) + 2x
50 = 2x
50/2 = 2x/2
x = 25
hope this helps :)
-3+8=-10 solve for x 9th grade math plz help
Answer:
x/3+8 = 10 // - 10
x/3-10+8 = 0
1/3*x-2 = 0 // + 2
1/3*x = 2 // : 1/3
x = 2/1/3
x = 6
x = 6
Step-by-step explanation:
hope that helps>3
An angle measuring 60 degrees is measured as 62 degrees. What is the percentage error correct to 3 significant figures?
Answer:
3.33%
Step-by-step explanation:
60 = theoretical/actual degree measure
62 = experimental/calculated degree measure
% error = (|actual - calculated|/actual)*100
In words, the absolute value of the actual value minus the calculated value is first calculated. Then, divide the difference by the actual value that you should have obtained. Since you want this converted to a percent, multiply the decimal value of your quotient by 100.
Three significant figures is 3.33 because none of these numbers are leading or trailing zeros. If you count how many numbers (that are not leading or trailing zeros) the value 3.33 has, you'll find 3 significant figures, which is why your final answer should be 3.33%.
Perform the indicated operation. 7 1/8 x 5 2/3
[tex]7 \frac{1}{8} \times 5 \frac{2}{3} \\ \\ \frac{57}{8} \times \frac{17}{3} = \frac{969}{24} \\ \\ = \frac{323}{8} = 40.375 = 40 \frac{3}{8} [/tex]
I hope I helped you^_^
Hit link will take you to my question, I have been stuck on it for about 30 minuets as I know I have the right answer but its not taking it.
Answer:
The link is not attached
Which inequality represents the solutions to 15 + 3x > 6?
A. O x<0
B.Ox<-3
C. O x>-3
D. O x>-5
[tex]15+3x\gt6[/tex]
[tex]3x\gt-9[/tex]
[tex]x\gt-3[/tex]
The answer is C.
Hope this helps :)
Answer:
C. x>-3
Step-by-step explanation:
3x> 6-15
x> -9/3
x>-3
Are points C,G, and H collincar or noncollincar?
Answer:
not co linear
Step-by-step explanation:
co linear means on the same straight line. CG is on one line. HG is on another. The might be at right angles,, but they are not colinear.
