Answer:
x = 8; y = 5
Step-by-step explanation:
x + y = 13
x - y = 3
8 + 5 = 13
8 - 5 = 3
Answer: The two numbers are 8 and 5
8is first and 5 is second
Step-by-step explanation:
x-y=3
x+y=13
8-5=3
8+5=13
How many sides does a polygon have if each interior angle is 150 degrees?
The relationship between the intensity of sound((w)/(m^(2)))and the distance from the source of sound is represented by the equation (i)=((k)/(d^(2))).If you sit only one meter away from the stage at a rock concert the intensity of sound is about 0.1(w)/(m^(2)). If vanessa does not want the sound intensity to be more than 0.001(w)/(m^(2)) how close to the stage can she sit?
Answer:
10 m
Step-by-step explanation:
We are given that the relationship between intensity of sound and distance from the source is given by
Intensity (I)=[tex]\frac{k}{d^2}[/tex]
Where I=Intensity
d=Distance of sound from the source
If distance d=1m
Intensity, I=0.1[tex]w/m^2[/tex]
We have to find how close she can to the stage if vanessa does not want the sound intensity to be more than 0.001(w)/(m^(2)).
Using the formula
[tex]0.1=\frac{k}{1}[/tex]
[tex]k=0.1[/tex]
[tex]\frac{0.1}{d^2}\leq 0.001[/tex]
[tex]\frac{0.1}{0.001d^2}\leq 1[/tex]
[tex]\frac{0.1}{0.001}\leq d^2[/tex]
[tex]100\leq d^2[/tex]
[tex]10\leq d[/tex]
[tex]d=10 m[/tex]
Hence, she can sit 10 m away from the stage.
Soybeans have a conversion factor of 36.744 (bu/t). How much do 45 bushels weigh?
Answer:
the weight of 45 bushels is 1.22
Step-by-step explanation:
The computation is shown below:
As the soybeans has the conversion factor of 36.744
So the weight of 45 bushels be
= 45 ÷ 36.744
= 1.22
hence, the weight of 45 bushels is 1.22
Is this the answer to this question i need help
Answer:
No, A is
Step-by-step explanation:
You can tell by plugging in the numbers. 0 - 3(0) < 1 as 0 < 1.
============================================================
Explanation:
Let's check if choice C is the answer or not
We will plug in x = -2 and y = 1 into the inequality to get
y - 3x < 1
1 - 3(-2) < 1
1 + 6 < 1
7 < 1
That's a false statement since 7 is not smaller than 1. This means the first inequality is false when (x,y) = (-2,1). So we can rule out choice C. Choices B and D are similar stories.
---------------
It turns out that choice A is the answer because
y - 3x < 1
0 - 3(0) < 1
0 - 0 < 1
0 < 1
Which is a true statement. So (x,y) = (0,0) is one solution to this inequality.
I'll let you check the other answer choices. You should find them to be false
help please ............
PLEASE HELP ME OUT!!!!!!!
Answer:
2nd one
Step-by-step explanation:
Answer:
5y=45 if y=9
Step-by-step explanation:
5y=45 if y=9
5(9)=45
45=45
WILL GIVE 50 BRAINLY POINTS!!
PLEASEEE HELPPP ASAAPP WILL
Which equation justifies why ten to the one third power equals the cube root of ten?
A. to the one third power all raised to the third power equals ten to the one third plus three power equals ten
B. ten to the one third power all raised to the third power equals ten to the one third times three power equals ten
C. ten to the one third power all raised to the third power equals ten to the three minus one third power equals ten
D. ten to the one third power all raised to the third power equals ten to the one third minus three power equals ten
Answer:
B. (10^1/3)³ = 10 ^(1/3×3) =10
Step-by-step explanation:
I took the test on FLVS
Answer:
B
Step-by-step explanation:
What is the sum of the interior
angle measures of a polygon
that has 15 sides?
Sum = [?]°
Hint: Sum = (n-2)180
Enter
Corporation. All Rights Reserved
Find d.
(Please explain why it is the answer you picked, I’m having a hard time understanding, my teacher gives us lessons to teach ourselves but I don’t even know how to start)
Answer:
i dont know if its right since i havent done trig in ages but
[tex]3 \sqrt{3} [/tex]
Step-by-step explanation:
tan(30)x9?
put the opposite angle inside the () since were doing toa which is tan(sin)=opposite/adj
so if we rearrange the formula to make opposite the subjects its
opposite=tan x adj
this is probably wrong so u might want to check with someone else
can you let me know asap
Answer:
Y + 2
Step-by-step explanation:
Answer:
f(n)=0*2
Step-by-step explanation:
f(n) could be f(x), but f(n) makes more sense.
i hope this help, i'm learning this in school still :)
CAN SOMEONE HELP ME PLEASE
Answer
I think the answer is 5x^4
What is -3/8 ÷ (-1/2)?
Answer:
3/4
Step-by-step explanation:
-3/8÷(-1/2)
-3/8÷-1/2
-3/8÷2/-1
-3×2/-8
-6/-8
-(-6/8)
-(-3/4)
3/4
Answer:
3/4
Step-by-step explanation:
my teacher just told me that answer a few seconds ago
this is the question please help.
What is 0.27 written as a fraction? (A 27 100 B 27 99 c 2 7 D 277 999 քʟs ɦɛʟք asaք aռɖ tʏ
Answer:
27/100 because if u write the decimal out in word form it's 27 hundredths and its the same thing if u write 27/100 in word form
My son has an assignment, and he doesn't know what
l-3l means. Can someone explain what it is?
simplify 15 divided by 3 + 2 x 10
Answer:
5 + 20x
Step-by-step explanation:
Hey! Hope this helps!
Have a nice day♥
please help with geometry! #9!!
Answer:
6, 7, 8 are correct
9. 2) TU = 58Step-by-step explanation:
[tex]XV=\dfrac{RS+TU}2\\\\\\44=\dfrac{30+TU}2\\\\44\cdot2=30+TU\\\\88-30=TU\\\\TU=58[/tex]
Sarah has $25 to spend at the grocery store. She spends $18.77. How
much money does Sarah have left?
Answer:
x=$75
Step-by-step explanation:
The diameter of a circle is? So what does diameter mean?
Answer:
Its 2 x radius
Step-by-step explanation:
Answer:
Twice the radius length.
Step-by-step explanation:
Generally, the diameter is the length of a line that extends from one point on a circle to another point on a circle as long as that line passes through the center of the circle. Essentially, a diameter, in short, is twice the length of the radius of a circle.
Find the solution to the system: x=2y-7 and 4x+y=71
Select the expression equivalent to (4.8x−7)+(−3.8+1.2x)
Answer:
The answer is 6x−10.8 simplified
Step-by-step explanation:
What is the slope of the line shown below?
A. -3
B.-6
C.6
D. 3
Answer:
D.3
Step-by-step explanation:
We are going to use the Slope Formula --> (y2-y1)/(x2-x1)
(9-3)/(3-1)=6/2=3
1 1/2 divided by 2 1/4
Answer this question for 20 points.
Answer:
I believe the answer would be the option that says: "An elephant walks with a speed of 15 steps a minute. How long was the elephant walking if she walked without stopping for 480 steps?"
Answer:
C. An elephant walks with a speed of 15 steps a minute. How long was the elephant walking if she walked without stopping for 480 steps?
Step-by-step explanation:
C yields the equation of [tex]15x=480[/tex], because 15 stands for steps/minute, 480 for steps, so [tex]x[/tex] must stand for minutes.
For your entertainment:
A gives [tex]x = 480 \cdot 15[/tex].
B gives [tex]x=32-15[/tex].
D gives [tex]x=480+15[/tex].
What is the length of BD?
Answer:
C) 12
Step-by-step explanation:
It is 6x2
A photograph measures 10 cm by 18 cm
The photograph is enlarged by a scale factor of 1.5
(a)
Work out the new dimensions.
There are 63 marbles in a leather bag. Some of the marbles are blue, some are green, some are clear, some are gold, and some are red. Based on experimental probability, there is a 1 in 7 chance of pulling out a blue marble. About how many blue marbles might be in the entire bag?
Group of answer choices
7 blue marbles
13 blue marbles
9 blue marbles
6 blue marbles
Answer:9
Step-by-step explanation:1/7 of 63 =9
In this parallelogram, triangle K has an area of 29 square centimeters. What is the area, in square centimeters, of the parallelogram?
29
58
43.5
14.5
Answer:
58. cm^2.
Step-by-step explanation:
Area of parallelogram = 2 * area of triangle
= 2 * 29
=58.
Let f(x) = 5x – 4 and g(x) = x² – 1. Find each value.
(gºf)(-1)
(fºg)(2)
(gºf)(0)
f(g(16)
f(g(0))
g(f(4/5))
Answer:
35.) 80
36.) 11
37.) 15
38.) 21
39.) -9
40.) -1
Step-by-step explanation:
In simplified terms the question is asking
35.) g(f(-1)) =
g(-9) = 80
36.) f(g(2)) =
f(3) = 11
37.) g(f(0)) =
g(-4) = 15
38.) f(g(root6)) =
f(5) = 21
39.) f(g(0)) =
f(-1) = -9
40.) g(f(4/5)) =
g(0) = -1
5 STARS 20 foot ladder is leaning against the side of a building the bottom of the ladder is 4 feet from the wall the bottom of the ladder is 4 feet from the wall how many feet above the ground does the ladder touch the wall
Answer:
400
The ladder is the hypotenuse of a right triangle. The 2 feet from the wall on the ground is one side, the distance up the wall is another side.
In a right triangle, the square of the hypotenuse is the sum of the squares of the other two sides. This is called the Pythagorean Theorem. In equation form:
c^2 = a^2 + b^2
Substitute the known values:
20^2 = 2^2 + b^2
Square the numbers:
400 = 4 + b^2
Subtract 4 from both sides:
b^2 = 400 - 4 = 396
Take the square root:
b = sqrt(396) = 19.9 (rounded) feet
Check:
20^2 ?= 2^2 + 19.9^2
400 ?= 4 + 396.01
400 ?= 400.01 (off just a bit due to rounding)