Did I do this question right ?
If not explain why
I tried and but not sure .....
Answers
Answer:
almost
Step-by-step explanation:
-4 <= x < 0
at least includes the number, less than does not include the number.
Related Questions
(Unit 2 lesson 20). Solve the inequality 2x < 10.*
x < 10
O
x < 5
X = 5
O
X > 5
Answers
Answer:
x <5
Step-by-step explanation:
2x<10
Divide each side by 2
2x/2 <10/2
x <5
Decide whether each one of these sets of data is discrete or continuous.
a) the weight of a puppy
b) the number of puppies in a litter
c) a person's temperature
d) the dress sizes of women
Answers
Answer:
A set is continuos if the values of the set can be any value in the given ranges
A set is discrete if the values of the set are finite and separate.
Than:
a) The weight of a puppy.
The weight of a puppy can be any value between 0 kg and a given maximum weight, then this is a continuous set.
b) The number of puppies in a litter.
Here we can have only whole numbers, for example, we can not have 7.34321 puppies in the litter, so this is a discrete set.
c) A person's temperature.
Temperature can be any value in a given range, so this is a continuous set.
d) The dress sizes of women.
Normally, there is a given set of dress sizes like s, l, xl, etc.
So in general, this is a discrete set. (While the actual "size" of a dress can take a lot more values than those ones, but this still is a discrete set)
Ed's new car has a value of $23,500, but it is expected to depreciate at a rate of 7.5% per year. If you were to write an exponential decay function to represent this situation, what would the decay factor be?
Answers
Answer:
0.925 or 92.5%
Step-by-step explanation:
y=a(1-b)^x
decay factor is 1-b <- and the part we care about
b is 7.5%=0.075
1-0.075
=0.925
I'm a little rusty on exponential rates, but I hope this helps!
The decay factor for the car will be equal to 0.925 or 92.5%
What is an exponential expression?Powers can simply be expressed in concise form using exponential expressions. The exponent shows how many times the base has been multiplied. Since 2 is the "base" and 5 is the "exponent," it can be written as 2 x 2x 2 x 2=25 for the number 32. This phrase should be understood as "two to the fifth power."
Given that Ed's new car has a value of $23,500, it is expected to depreciate at a rate of 7.5% per year.
The decay factor will be calculated as,
[tex]y=a(1-b)^x[/tex]
b is 7.5%=0.075
Decay factor = 1-0.075
Decay factor = 0.925
To know more about exponential expression follow
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OLEASE HELP FAST I WILL MARK BRAINLIST
Answers
find the value of x.
Answers
Answer:
19 my friends
have a good day
Step-by-step explanation:
PLEASE GEOMETRY HELP WILL MARK BRAINLIEST!!!
Answers
Answer:
120
Step-by-step explanation:
First we can find the value of each exterior angle
The sum of the exterior angles is 360
because a hexagon has 6 congruent exterior angles we divide 360 by 6
360/6=60 so each exterior angle is equal to 60 degrees
the exterior angle and interior angles of any regular polygon are supplementary angles ( meaning the sum of the two is 180) so to calculate the interior angle we subtract 60 from 180
180-60=120 so each measure of the interior angle of a hexagon is 120 degrees
A rectangular rug measures 9 feet by 6 feet. The rug has two nonoverlapping yellow circles that each have a diameter of 3 feet. The
part of the rug not covered by the circles is blue. HELP HELP HELP
What percent of the rug is blue
54
65
74
89
Answers
Answer:
54%
Step-by-step explanation:
A Cd usually sells for 11 if the XD is 10% of abs sales tax are 6% What is the total price of the cd including tax
Answers
9514 1404 393
Answer:
$10.49
Step-by-step explanation:
Maybe $11 CDs are selling at a 10% discount with 6% sales tax. Then the total price is ...
$11.00 × (1 -10%) × (1 +6%) = $11.00(0.90)(1.06) ≈ $10.49
The price with discount and tax is $10.49.
Lydia invested $83,000 in an account paying an interest rate of 6.7% compounded
monthly. Assuming no deposits or withdrawals are made, how long would it take, to
the nearest year, for the value of the account to reach $210,100?
Answers
Answer:
14
Step-by-step explanation:
The required time for Lydia's account to reach $210,100 is 13.9 years.
What is compound interest?Compound interest is the interest on deposits computed on both the initial principal and the interest earned over time.
First, convert R as a percent to r as a decimal
r = R/100
r = 6.7/100
r = 0.067 per year,
Then, solve the equation for t
t = ln(A/P) / n[ln(1 + r/n)]
t = ln(210,100/83,000) / ( 12 × [ln(1 + 0.067/12)] )
t = ln(210,100/83,000) / ( 12 × [ln(1 + 0.0055)] )
t = 13.9 years
Thus, the required time for Lydia's account to reach $210,100 is 13.9 years.
Learn more about compound interest here: https://brainly.com/question/14295570
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What is the value of the expression 8 − (7 − 4) + 12 x 2? 29 11 14 19
Answers
Answer:
29
8-(7-4)+12x2
8-3+12x2
5+12x2
5+24
29
Answer:
29
Step-by-step explanation:
8-(7-4)+12x2
8-3+12x2
5+12x2
5+24
=29
please help this is TIMED!
Answers
Answer:
angle 1 = 51 degrees
angle 2 = 18 degrees
angle 3 = 123 degrees
angle 4 = 39 degrees
Step-by-step explanation:
angle 2 = 90-72 = 18
angle 3 = 180 - 57 = 123
angle 4 = 180 - 123 - 18 = 39
angle 1 = 90 - 39 = 51
Which of the following shows the extraneous solution to the logarithmic equation below?
2 log Subscript 5 Baseline (x + 1) = 2
x = negative 6
x = negative 4
x = negative 2
x = negative 1
Answers
Answer:
A.-6
Step-by-step explanation:
on edg
Answer:
A) -6
Step-by-step explanation:
In which quadrant is the coordinate pair (-11, 1) located?
Answers
Answer:
2nd quadrant
Step-by-step explanation:
:)!!!!!!!! ok
Betsy drove from london to wolverhampton.it took her 2.5 hours at an average speed of 56 miles per hour.Mac drove the same journy by motor bike.It took him 2 hours.Assuming that both took the same route,work out Mac's average speed in mph.
Answers
Answer:
44.8 mph
Step-by-step explanation:
Betsy drove from london to wolverhampton.it took her 2.5 hours at an average speed of 56 miles per hour.Mac drove the same journy by motor bike.It took him 2 hours.Assuming that both took the same route,work out Mac's average speed in mph.
The above question is solved using Proportion method
2.5 hours = 56 mph
2 hours = x mph
Cross Multiply
2.5 hours × x mph = 2 hours × 56 mph
x mph = 2 hours × 56 mph/2.5 hours
x mph = 44.8 mph
Therefore, Mac's average speed = 44.8 mph
Rearrange the equation so b is the independent variable..
a – 7 = 3(b +2)
a =
Answers
Answer:
a = 3b+13
Step-by-step explanation:
a=3b+6+7
a=3b+13
The ratio of the number of boys to the number of girls in a chior is 5 to 4. How many boys are in chior
Answers
Answer:
N/A
Step-by-step explanation:
There is not enough information to find the amount of boys in choir. You did not give us how many girls there are in choir or how many people were in choir in total. That could've helped us. Better luck next time!!!!!
factorise 16a^2 -9b^2
Answers
Answer:
it can't be factorised the variables should be same
solve for k
[tex] \frac{3}{2k} = 5[/tex]
I need help
Answers
Answer:
[tex]k = \frac{3}{10} [/tex]
Step By Step Explanations:
1) Multiply both sides by 2k.
[tex]3 = 5 \times 2k[/tex]
2) Simplify 5 × 2k to 10k.
[tex]3 = 10k[/tex]
3) Divide both sides by 10.
[tex] \frac{3}{10} = k[/tex]
4) Switch sides.
[tex]k = \frac{3}{10} [/tex]
Therefor, the answer is k = 3/10.
A tank that is 40% full contains 648 gallons of water. How much water is in the tank when the tank is at full capacity (100%)?
Answers
Answer: 1620 gallons of water
Step-by-step explanation:
Let the water that is in the tank when the tank is at full capacity be represented by x.
Therefore, 40% of x = 648
40% × x = 648
40/100 × x = 648
0.4 × x = 648
0.4x = 648
x = 648/0.4
x = 1620
The answer is 1620 gallons
what is the answer ????
Answers
Answer:
I think its joe
Step-by-step explanation:
c or b
The answer is c
Step-by-step explanation:
........
..........
..
.
.
EXTRA POINTS :)) find the volume - *multiple choice*
Answers
Answer:
the third one
Step-by-step explanation:
Answer:
The last one
Step-by-step explanation:
kk so the formula for this is
V=πr2h=π·42·3≈150.79645
SOMEONE PLEASE HELP ANSWER CORRECTLY !!!!! WILL MARK BRIANLIEST !!! HELPPPPPP MEEEEEEE !!!!!
Answers
Answer:
ABCDEFGHIJKLMNOPQRSTUVWXYZ
Step-by-step explanation:
abcdefghijklmnopqrstuvwxyz
Answer:
B(-7, -8)Step-by-step explanation:
Points given:
M(-5, -2) - midpoint A(-3, 4) - endpoint B(x, y) - endpointUse midpoint formula to find the coordinates of B:
x = (x1 + x2)/2, y = (y1+ y2)/2Substitute known values and solve for x and y:
-5 = (-3 + x)/2 ⇒ -10 = -3 + x ⇒ x = -10 + 3 ⇒ x = -7 -2 = (4 + y)/2 ⇒ -4 = 4 + y ⇒ y = -4 - 4 ⇒ y = -8Point B is:
(-7, -8)On a flight from San Diego to Baltimore 18 of 156 seats on empty. What is the ratio of filled seats to empty seats on the flight
Answers
Answer:
Step-by-step explanation:
A student is constructing a triangle with the following dimensions:
side length of 10 inches
side length of 30 inches
Which measurements could be the length of the third side? Select all that apply.
19 inches
21 inches
35 inches
45 inches
50 inches
Answers
Answer:
JKBUKKJHKK
Step-by-step explanation:
GYHBGKJHUJUGJ
Answer:
The answer would be 19inches, 50 inches.
i dont knw if its right or not,
but i hope this helps u.
Step-by-step explanation:
HELP DUE IN 10 MINS! Find the missing side measurement.
Your answer should be a simplified radical or a whole number. (no decimals allowed)
x=
Answers
Answer:
x = 3√7
Step-by-step explanation:
The Pythagorean theorem states that in a right triangle, the sum of the legs squared and added together is equal to the hypotenuse (the longest side and the one across the 90° angle)
If the legs are a and b, respectfully, and the hypotenuse is c, the equation would be:
a² + b² = c²
Let's apply this to the problem given.
9² + x² = 12²
Simplify.
81 + x² = 144
Subtract 81 from both sides.
x² = 63
Take the square root.
√(x²) = √63 = √(9 * 7) = √(3² * 7)
x = 3√7
Check the answer.
9² + (3√7)² = 12²
81 + 9 * 7 = 144
81 + 63 = 144
144 = 144
Thus, the answer is correct.
I hope this helps! Feel free to ask any questions! :)
1. Solve triangle ABC if A = 42.3º, b = 12.9 meters, and c = 15.4 meters.
this is trigonometry, you have to use the cosine law to solve it
Answers
Answer:
a = 10.36m
B = 47.7º
C = 90º
Step-by-step explanation:
we know the angle of A so we do the sin of A; Spoiler: its 0.67
0.67 = a / 15.4
0.67 * 15.4 = a
a = 10.36
----------
B = 90 - 42.3 = 47.7º
Betty bought a gift a friend. She in a box with the length of 9 inches, width of 13 inches, and the height of 8 inches. What is the surface area of the box?
Answers
Answer:
586
to find surface area you have to add the areas of each surface
2(13 × 8) + 2(13 × 9) + 2( 8×9)
586 inches squared
HELP HELP HELP HELP HELP HELP
Answers
Answer:
option D is correct answer. ( 2, 2)
Hope it helps!
PLSSS HELP!!!!!!!!
What is the y-intercept of the function and what does it represent?
Answers
Answer:
The y-intercept is $1000
Step-by-step explanation:
What this means is the the value of the antique when first found/created was 1000 dollars
please hurry I’m timed! :c Who were the forty-niners?
People who left California because of all the gold miners in 1849.
People who were born in California in 1849.
People who came to California looking for gold in 1849.
People who fought in the battle of California in 1849
Answers
Answer:
C: People who came to California looking for gold in 1849.
Step-by-step explanation:
Answer:
People who came to California looking for gold in 1849.