Answer:
402?
2+ 8(50)?
not sure
Step-by-step explanation:
if so mark the brainliest!
A city's population has increased 40% in the last 5 years and is now 53,782 people.
What was the population 5 years ago?
Given:
A city's population has increased 40% in the last 5 years and is now 53,782 people.
To find:
The population 5 years ago.
Solution:
Let x be the population 5 years ago.
A city's population has increased 40% in the last 5 years.
So, present population is
[tex]x+x\times \dfrac{40}{100}=x+0.4x=1.4x[/tex]
It is given that the present population is 53782.
[tex]1.4x=53782[/tex]
[tex]x=\dfrac{53782}{1.4}[/tex]
[tex]x=38415.7142857[/tex]
[tex]x\approx 38416[/tex]
Therefore, the population 5 years ago was about 38416.
if the slope of a line is 6, find y when given (5, -9) and (7, y)
what is two thirds of 80
Answer:
[tex]53\frac{1}{3}[/tex]
Step-by-step explanation:
[tex]\frac{2}{3} * \frac{80}{1} = \frac{160}{3}=53\frac{1}{3}[/tex]
hope this helps, good luck :)
Answer:
53.3 infinity
Step-by-step explanation:
$5.40 is what
percent of $4.50?
I
I will give braniest ❤️
In RTS s=93 inches, angle s=123 degrees and angle t= 28 degrees. Find the length of r, to the nearest 10th of an inch
Answer:
Step-by-step explanation:
In RTS s=93 inches, angle s=123 degrees and angle t= 28 degrees. Find the length of r, to the nearest 10th of an inch
you deposit $2,750 in a savings account. you can earn 25% interest each year. how much money will you have in your account after 4 years?
Answer:
5,500
Step-by-step explanation:
25% of 2,750 is 687.5
687.5 times 4 is 2,750
2,750 times 2 is 5,500
so you would have $5,500 in total in your account in 4 years
x^3 - x^2 + 5x – 5 = 0
Answer:
The final solution is x = i√5, − i√5
Step-by-step explanation:
(x−1)(x2+5)=0
If any individual factor on the left side of the equation is equal to 0, the entire expression will be equal to 0.
x−1=0
x^2+5=0
Set the first factor equal to 0 and solve.
x = 1
Set the next factor equal to 0 and solve.
The final solution is all the values that make (x−1)(x2+5)=0 true.
So, final solution is x = i√5, − i√5
an airplane descends 2.2 miles to an elevation of 5.95 miles. find the elevation of the plane before its descent.
Answer:
8.15 miles
Step-by-step explanation:
5.95+2.2=8.15
What is the b-value in the base exponential function stand for?
Answer:
the answer is slope be it give U just the formula
What is the multiplier for decreasing something by 3%?
Answer:
The answer is 0.03
Step-by-step explanation:
Please mark brainliest
Find the perimeter of the figure.
8 cm
10 cm
Answer:
12.565 + 8 + 10 + 10 = 40.565
Find the circumfrence of the circle and divide that by 2. Then add the other sides.
Nine people are going to share a 128-ounce bottle of soda. How many ounces will each person get to drink?
Select the correct answer.
If the zeros of a quadratic function are 3 and 8, what are the factors of the function?
ОА. .
(X + 8) and (x-3)
OB.
(x - 8) and (x + 3)
ОС.
(X + 8) and (x + 3)
OD
(x-8) and (x-3)
Answer:
Hello!The answer would be D-(x-8) and (x-3)
Step-by-step explanation:
Your welcome :)
The factors of the function, If the zeros of a quadratic function are 3 and 8 will be (x - 3) and (x + 8), i.e. option D.
What is quadratic function?
Quadratic function is one of the form f(x) = ax² + bx + c, where a, b, and c are numbers with a not equal to zero.
We have,
Zeros of a quadratic function are 3 and 8,
Now,
Let,
[tex]\alpha = 8[/tex] and [tex]\beta=3[/tex]
So,
Now,
Using sum of zeros and product of zeros,
i.e.
[tex]\alpha+\beta=8+3=11[/tex]
And,
[tex]\alpha *\beta =8*3=24[/tex]
So,
The quadratic equation will be in form of ,
[tex]x^2-(\alpha+\beta)x+\alpha\beta=0[/tex]
i.e.
[tex]x^2-(8+3)x+24=0[/tex]
i.e.
[tex]x^2-8x-3x+24=0[/tex]
taking common,
x(x + 8) - 3(x - 8) = 0
(x - 3) (x + 8) = 0
So,
The factor of the quadratic equation are (x - 3) and (x + 8).
Hence, we can say that the factor of the quadratic equation are (x - 3) and (x + 8), i.e. option D.
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I NEED HELP WITH THIS ASAP
Answer:
I think its AED19
Step-by-step explanation:
please give brainliest if correct
24=6(-x-3)
in class need help
Answer:
- 7
Step-by-step explanation:
6(- x - 3) = 24
-6x - 18 = 24
-6x = 24 + 18
-6x = 42
x = 42 ÷ - 6
x = - 7
Work out, giving your answer as a mixed number:
Answer:
1 11/20
Step-by-step explanation:
hope this helps! :)
Answer:
[tex] 1 \frac{11}{20} [/tex]
Step-by-step explanation:
[tex]3 \frac{3}{4} - 2 \frac{1}{5} \\ \\ = 3.75 - 2.2 \\ \\ = 1.55 \\ \\ = \frac{155}{100} \\ \\ = 1 \frac{55}{100} \\ \\ = 1 \frac{11}{20} [/tex]
What percent of 950 is 931
Answer:
100.
Step-by-step explanation:
Hope you get it right
What is the area of the figure?. Single choice.
(10 Points)
18 cm squared
26 cm squared
34 cm squared
18 cm squared
Answer:
34 cm squared
Step-by-step explanation:
Complete it to full rectangle and calculate the area by multiplying width and length then calculate the area of red area and subtract it from the full rectangle's area
9×6 - 5×4 = 34 cm^2
You could also explain if you want, it's optional
both is 0 i think but it could be anything
The slope of the linear model is 1.5. What does this
mean in terms of the maximum noise level and the
number of people?
Answer:
Noise level increase by 1.5 per unit increase in number of persons
Step-by-step explanation:
The slope, m of a linear model is the value which represents the unit change in the dependent variable due to a unit chahe in the independent dependent.
The maximum noise in decibel is the dependent variable while the number of persons is the independent variable. Hence, the Coefficient of the independent vatiabkw is the slope and gives the rate of change in the dependent variable per unit Change in the independent variable.
A bacteria is tripling every 10 days. If there is a 4 bacteria in a sample, how long with it take to reach 1 million bacteria?
PLZ HELP FAST I NEED IT RN
Answer:
16 units
Step-by-step explanation:
Answer:
16 units
Step-by-step explanation:
JM- 3 units long
JK- 5 units wide
KL-3 units long
ML-5 units long
Perimeter is the sum of all 4 sides meaning:
3+5+3+5=16
16 units is the answer
Increase 60 by 25%.
Answer:
75
Step-by-step explanation:
25% * 60 = 15
60 + 15 = 75
Answer:
the answer is 75
Step-by-step explanation:
i found out that that 25% of 60 was 15 because thats what i get when i divide it by 4. so then i added 15 ot 60 and it gave me 75
Solve for x Solver for x
Answer:
x = 4
Step-by-step explanation:
since it is an equilateral triangle, each angle is 60°. To find x, set up the equation 17x-8=60
17x = 68
x=4
[tex] \sin {}^{2} (a) + cos {}^{2} (a) = [/tex]
???
Answer:
sin^2a+ cos^2a=1
it is derived from Pythagoras theorem
Answer:
sin^2a+ cos^2a=1
Step-by-step explanation:
Shoes and hats are on sale. The expression 1/4(s + 24.80) can be used to determine the discount when you buy shoes with a retail price of s dollars and hats with a total retail price of $24.80. Write another expression that can be used to determine the discount.
Answer:
0.25s + 6.2
Step-by-step explanation:
Discount on sale expression : 1/4(s + 24.80)
Retail price of shoe = s
Retail price of hats = 24.80
From expression, we can conclude that there is a ; 1/4 = 0.25 = (0.25 * 100%) = 25% discount on each item ;
Hence, discount expression could be written as :
0.25s + 0.25(24.80)
0.25s + 6.2
Write down the mathematical name of the shape made by each net
The shapes that would be formed by the nets are:
a. Cuboid
b. square pyramid
What is the Net of a Cuboid?A cuboid is a shape that is formed by the net that has six (6) flat faces with angles that are right angles.
The net in figure a above would form a cuboid shape when joined together.
What is the Net of a Square Pyramid?A square pyramid is a thee-dimensional geometric shape that is formed by the net consists of a square base and four triangular sides which joined together at a common vertex.
The image attached below shows the shape that would be formed by the net in figure B, which would be a square pyramid.
Therefore:
a. Cuboid
b. square pyramid
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Ed buys a box of eggs costing £2.80, two packs of bacon for £2.40 each and two tins of baked beans.
He pays with a £10 note and gets 80p change.
How much does a tin of beans cost in pounds, £?
Answer:
Your answer is
0.8 pound.
If wrong, Sorry...
But remember to give me correct answer
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It took 5.5 hours to drive 154 miles. What was the average rate of speed?
Answer:
The average speed would be about 28 miles per hour.
Step-by-step explanation:
154 divided by 5.5 is 28.
A train travels a total of 42 km at a constant speed of 85 km/h.
How long is its journey? Give your answer in minutes and seconds, to the nearest seconds
Answer:
formula is speed equals distance/ time.
now, speed above is 85km/h and distance is 42km.
time therefore is 42/85 which is 0.494h
now, 0.494h× 60 minutes is 29.64minutes(which is your answer in minutes)
now,29.64minutes × 60secs is 1778.82 seconds to the nearest seconds is 1779 seconds( which is your answer in seconds)