Answer:
the length of the longer piece of cable is 24 ft
Step-by-step explanation:
shor piece = s
Long piesce = s+9
s + s+9= 39
2s = 30
s = 15
short = 15
15 +9 = 24
long = 24
15+24 = 39
Answer:
24 feets
Step-by-step explanation:
let the shorter cable be x feets
so the longer cable will be 9 plus the shorter cable which is (9 + x) feets
Total length = Longer cable + shorter cable 39 = (9 + x) + x 39 = 9 + 2x2x = 39 - 9 2x = 30[tex]x \: = \: \frac{30}{2} \\ x = 15feets[/tex]
But the longer cable is (9 + x)So longer cable = 9 + 15 Longer cabl = 24 feetsAnswer this please i am stuck
Answer:
no one knows i think
Step-by-step explanation:
Answer:
junkijunki
Step-by-step explanation:
what is the next step in solving this equation
a. -5x-8=9
b. -13x=9
c. 11x-24=9
d. -21x-24=9
I've got 5 questions and I'm very stuck so I yall can pls HELP and answer them for me pls, thank you
Answer:
1. 11cm
2. 31.2cm
3. 20m
4. 11cm
5. 314feet
Step-by-step explanation:
1. 5.5 × 2 = 11cm
2. 15.6 × 2 = 31.2cm
3. 40m ÷ 2 = 20m
4. From the centre of a circle to the edge is the radius of a circle.
5. Circumference = πD
D = 2r = 2 × 50 = 100
π × 100 = 314feet
Suppose a sample of 256 was taken from a population with a standard deviation of 64 centimeters. What is the margin of error for a 68% confidence interval?
A. 6
B. 8
C. 10
D. 4
The correct margin of error for a 68% confidence interval is option D 4 centimeters.
Let's calculate the margin of error correctly for a 68% confidence interval.
To calculate the margin of error, we need to determine the critical value associated with a 68% confidence interval. For a normal distribution, the critical value is approximately ±1 standard deviation.
Given that the standard deviation is 64 centimeters, the margin of error can be calculated as:
Margin of Error = 1 * (Standard Deviation / √Sample Size)
= 1 * (64 / √256)
= 1 * (64 / 16)
= 1 * 4
= 4
Therefore, the correct margin of error for a 68% confidence interval, based on the given information, is 4 centimeters. The correct answer is option D.
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Answer:
D
Step-by-step explanation:
Just took the test
100 points / please help! i have no idea what im doing...
In the following diagram, what is the ratio of orange squares to white squares?
a) 11:5
b) 5:16
c) 5:11
d) 16:5
Answer:
b) 5:11
Step-by-step explanation:
count the orange squares and the white squares
HELP BRAINISET TO WHOEVER RIGHT
Answer:
A: 171.75
B: 170
Step-by-step explanation:
The mean (or average) can be found by...
- add all the numbers together (we will call this y)
- divide the total sum (or y) by the total amount of numbers used to add
Formula:
(x₁ + x₂ + x₃ + ... + xₙ) ÷ n
For A:
(172 + 130 + 173 + 212) ÷ 4 = 171.75
For B:
(136 + 184 + 168 + 192) ÷ 4 = 170
Which is equivalent to 12 - 5x?
-12x+5
-5x+12
5x-12
12x -5
The equivalent expression to 12 - 5x is -5x+12. The correct option is B.
What is an expression?The mathematical expression combines numerical variables and operations denoted by addition, subtraction, multiplication, and division signs.
Mathematical symbols can be used to represent numbers (constants), variables, operations, functions, brackets, punctuation, and grouping. They can also denote the logical syntax's operation order and other properties.
Given that the expression is 12 - 5x. The equivalent expression will be calculated as,
-5x+12 = 12 - 5x
Hence, the correct option for the given expression will be B.
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If you place a 40-foot ladder against the top of a building and the bottom of the ladder is 17 feet from the bottom of the building, how tall is the building? Round to the nearest tenth of a foot.
Answer:
no se ingles pero, alguien me puede ayudar?
Answer:
The building is 36.2 ft tall.
Step-by-step explanation:
i got it right on the deltamath
Two decimals numbers, to the thousandths, that have a sum of about 5 and a difference of about 3. Then do the math to prove it works.
Answer:
The numbers are approximately: 4.000 and 1.000
Step-by-step explanation:
The given parameters can be expressed as:
[tex]\frac{x}{1000} + \frac{y}{1000} \approx 5[/tex]
[tex]\frac{x}{1000} - \frac{y}{1000} \approx 3[/tex]
Required
Determine the numbers
In each of the equations, multiply by 1000
[tex]1000 * [\frac{x}{1000} + \frac{y}{1000} \approx 5][/tex]
[tex]x + y \approx 5000[/tex]
[tex]1000 * [\frac{x}{1000} - \frac{y}{1000} \approx 3][/tex]
[tex]x-y \approx 3000[/tex]
So, we have:
[tex]x + y \approx 5000[/tex]
[tex]x-y \approx 3000[/tex]
Add the two equations
[tex]x + x + y - y \approx 5000 + 3000[/tex]
[tex]2x \approx 8000[/tex]
Solve for x
[tex]x \approx 8000/2[/tex]
[tex]x \approx 4000[/tex]
Substitute [tex]x \approx 4000[/tex] in [tex]x + y \approx 5000[/tex]
[tex]4000 + y \approx 5000[/tex]
[tex]y \approx 5000 - 4000[/tex]
[tex]y \approx 1000[/tex]
Using:
[tex]\frac{x}{1000} + \frac{y}{1000} \approx 5[/tex]
We have:
[tex]\frac{4000}{1000} + \frac{1000}{1000} \approx 5[/tex]
[tex]4.000 + 1.000 \approx5[/tex]
This implies that, the numbers approximates to 4.000 and 1.000, respectively.
Select the correct answer. Which is the minimum or maximum value of the given function?
A. The function has a maximum value of -3.
B. The function has a minimum value of -3.
C. The function has a maximum value of -4.
D. The function has a minimum value of -4.
Answer:
The answer is D I believe
Step-by-step explanation:
If you look at the lowest point it lands on -4
If the degree of a term is negative, the term is still a monomial.
A. True
B. False
Answer:
a
Step-by-step explanation:
Answer:
B) false
Step-by-step explanation:
degree cant be negative because if it was then the trioxians of the neutrino would implode to a sub zero quantum ordinate and the multiverse would incenerate itself and turn into a meca black hole...and that is why we dont want monomials to have a negative degree
Is 4.53 a real number?
yes or no
Answer:
yur
Step-by-step explanation:
Answer:
yeah it's a decimal so yes
Which are possible employers in the Financial career cluster? Check ALL that apply.
-private company
-government
-nonprofit organization
-bank
-stock market
Answer:
pretty sure its
government
nonprofit organization
bank
Step-by-step explanation:
doing exam thingy
Answer:
hes right
Step-by-step explanation:
Pythagorean theorem level 2 delta math
The third side is [tex]\sqrt{42}[/tex]
So Pythagorean's theorem is the following
[tex]Short^2 + Long^2 = Hypotenuse^2[/tex]
From here we can input the following information that we know
[tex]Short^2 + 4\sqrt{3}^2 = 8^2\\Short^2 + 12 = 64\\Short^2 = 64 - 12\\Short^2 = 42\\Short = \sqrt{42}\\[/tex]
From the set {7, 15, 18), which of the values can be substituted for c to make the
equation true.
90 - 2c = 60
A. 7
B. 18
C. none of these
D. 15
Answer:
7-2=5
18-2=16
15-2=13
90-20=70
The first play in a football game starts at the
50-yard line and results in a gain of 25 yards for
Team A. On the next play, Team B has a gain of
25 yards in the opposite direction. Where is the
ball after the second play?
Use the law of sines to find the value of a.
B
95°
D
40°
a
4.7 cm
С
sin(A)
a
sin(B)
Law of sines:
sin(C)
C
Answer:
Step-by-step explanation:
''he Law of Sines is the relationship between the sides and angles of non-right (oblique) triangles . Simply, it states that the ratio of the length of a side of a triangle to the sine of the angle opposite that side is the same for all sides and angles in a given triangle.''
The best approximation value of a by using sine rule is 3.0cm. so option C is correct.
What is sine rule?The sides and angles of non-right triangles are related according to the Law of Sines.
The relationship between the angles and lengths of the sides:
a/sinA = b/sinB = c/sinC
We know according to law of sines:
a/sinA = b/sinB = c/sinC
by putting the values we can write,
a/sin40° = 4.7/sin95°
a = (4.7 ×sin40°)/sin95°
= 3.032
by putting the value of Sin40° and Sin95°.
we get a = 3.03cm.
Approximation value of a is 3.0cm.
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The complete question:
what is the best approximation of the value of a?
2.4 cm
2.7 cm
3.0 cm
3.3 cm
Given triangle ABC with ∠BAC=40°, ∠ABC=95°,AC = 4.7cm, BC = a cm.
Directions: Select all the correct answers.
Yvette needs 5/8 of a teaspoon of salt, 2/3 of a tablespoon of baking soda, and 3/4 of a cup of sugar to bake a cake.
The order of the measurements from least to greatest are 5/8 < 3/4 < 2/3.
The order of the measurements from least to greatest are 5/8 < 2/3 < 3/4.
The numbers 5/8 and 3/4 are terminating decimals while 2/3 is a non-terminating decimal.
The numbers 5/8 and 2/3 are terminating decimals.
The number 5/8 is a terminating decimal while 3/4 and 2/3 are non-terminating decimals.
The number expands to 0.75 while expands to 0.6.
The number 5/8 expands to 0.625 while 3/4 expands to 0.75.
The order of the measurements from least to greatest are 2/3 < 5/8 < 3/4
Answer:
The order of the measurements from least to greatest are 5/8 < 3/4 < 2/3.
Step-by-step explanation:
Answer:
The numbers 5/8 and 2/3 are terminating decimals.
The order of the measurements from least to greatest are .
2/3<,5/8,<3/4
Step-by-step explanation:
study island
Algebra 2 functions. Will mark Brainliest!
Answer:
f-1(x) is just the opposite of f(x) therefore -x(x-2) =f-1(x)
Step-by-step explanation:
In circle J with mZHLK = 21°, find the angle measure of minor arc HK .
K
H
L
Answer: m HK
Submit Answer
attempt 2 out of 2
PLZ HELP
Answer:
HK=42°
Step-by-step explanation:
because the arc of HK is two time bigger than HLK measurement
HLK=1/2HK
21°=1/2HK cross production
HK=2×21°
HK=42°
Mike wants to pull as much juice as possible in his cup.His cup is 10.2 inches tall and has a 2.6 inch radius. How much juice can mike pour in his cup
Answer: [tex]V=216.64\ in.^3[/tex]
Step-by-step explanation:
Given
Height of cup [tex]h=10.2\ inch.[/tex]
radius of cup [tex]r=2.6\ inch.[/tex]
assume the cup is in the shape of a cylinder
The volume of the cylinder is [tex]\pi r^2h[/tex]
Put the values
[tex]\Rightarrow V=\pi \times 2.6^2\times 10.2\\\Rightarrow V=216.64\ in.^3[/tex]
can someone please help me with this question??
Answer:
90
Step-by-step explanation:
radius = 6/2 = 3
(3x3x3x10)/3 = 270/3 = 90
5 tons of fertilizer cost $14,100.00. What is the price per pound?
Answer:
$2,820
Step-by-step explanation:
$14,100.00 / 5= $2,820
Please answer correctly
KLJ= 125º
Hope this helps!!
please help it's the last question
Answer:
1 is the answer
hope this helps
have a good day :)
Step-by-step explanation:
Answer:
option 1!
Step-by-step explanation:
it started at 15 and ended at 23. also when u look at the sequence, 19 is in the middle. which shows in the graph that 19 is matching the line. but u might be confused since option 2 also has 19 matching the line... but look carefully. the square started at 17, but the sequence does not have 17 in it.
i hope this helped :D
TIME REMAINING
43:34
A department store is hiring for the positions of manager, associate manager, and assistant manager. If 15 people have applied for all the positions and are equally qualified for each position, in how many ways can the positions be filled?
Answer:
The positions can be filled in 2730 ways
Step-by-step explanation:
The number of all posible ways is equal to the number of possibilities of who can become the manager, times the number of possibilities of who can become the associate manager, times the number of possibilities of who can become the assistant manager.
Now...
The number of possibilities of who can become the associate manager = 15
The number of possibilities of who can become the associate manager = 14
(it decrease by one because one person already got the position of manager)
The number of possibilities of who can become the assistant manager = 13
(based on the same logic as for the number of who can become the associate manager)
So now we know the number of ways equals...
15 x 14 x 13 = 2730
Factorise using the sum and product method with all the steps!
British curriculum
No links or websites please !
Answer:
(2x+3)(x-5)
Step-by-step explanation:
Given the expression 2x²-7x-15
Factorize
2x²-10x+3x-15 =0
2x(x-5)+3(x-5)
(2x+3)(x-5)
Hence the factored form of the expression is (2x+3)(x-5)
HI thts way tooo much to answer but ye
Find the are of the triangle below in square units
(The triangle is in the picture, please help! :,))
Answer:
252
Step-by-step explanation:
14 x 6 x 12 = 1008/2 = 504/2 = 252
It takes Lauren 13 minutes to walk 1 mile. How many miles can
Lauren walk in 52 minutes?
Answer:
4
Step-by-step explanation:
if it takes her 13 mins to walk 1 mile and we need to know how many miles she can walk in 52 mins than the equation for this word problem would be: 52÷13=4
for brainiest:):):):):):):):):):):):)
Answer:
P: 15 Area: 8
Step-by-step explanation:
Use the line to split the shape. For P add all the numbers and add a 4 and a 1 too. For the area, you have to multiply 2 by 2 because of the cube, then mulitply 4 by 1 because 2+2=4 and the other number is one. REMEMBER TO SHOW YOUR WORK AND DOUBLE-CHECK!