Answer:
The answer would be 20 because 2x2=4 right so 10x2=20
Step-by-step explanation:
Select all x values that are solutions to the equation
Answer:
The answers are 3 and 5
The only thing u had to do is
x-5=0
x=5
7x-21=0
7x=21
x=3
Find the perimeter of a triangle 20cm and 29cm
Answer:
Unclear.
To find the perimeter you need all three sides of the triangle. You have only given two.
All you need to do is add up all three sides and you have your perimeter.
Formula: P=a+b+c
Answer:
Unknown unless you give the amount of cm for the last side
Hi can you pls help me pls yes do all
Evaluate geometric series
Answer:
7.50 (nearest hundredth)
Step-by-step explanation:
General form of geometric progression: [tex]a_n=ar^{n-1}[/tex]
(where [tex]a[/tex] is the initial term and [tex]r[/tex] is the common ratio)
Given progression:
[tex]5\left(\dfrac13\right)^{n-1}[/tex]
Therefore:
[tex]a=5[/tex][tex]r=\dfrac13[/tex]Sum of a geometric series:
[tex]S_n=\dfrac{a(1-r^n)}{(1-r)}[/tex]
Substituting a = 5, r = 1/3 and n = 10 to find the sum to n = 10:
[tex]\implies S_{10}=\dfrac{5(1-\frac13^{10})}{(1-\frac13)}[/tex]
[tex]\implies S_{10}=7.499873987...[/tex]
[tex]\implies S_{10}=7.50 \textsf{ (nearest hundredth)}[/tex]
. Express this number in standard form:
?
4.39 х 10^-7
Answer:
4.39e-7
Step-by-step explanation:
There are 73 red, blue and green marbles in a jar. There are twice as many red marbles as blue marbles. There are 19 more blue marbles than green marbles. How many green marbles are there?
HelP KE PLEASE HELP HELP
Answer:
C (14 aq units)
Step-by-step explanation:
Area of a triangle = 1/2 x base x height
Base = MY = 4 UNITS
Height = AM = 7 UNITS
Area = 4 x 7 x 1/2 = 14
Answer:
Area=1/2×base×height
But base=4 units and height=7 units
So the area is
1/2×4×7
which is 14 sq units
how many hours is 1/4 of a day
Answer:
6 hours.
Step-by-step explanation:
A day is 24 hours. So in this case, 3 quarters of a day will be 18 hours, half a day is 12 hours, and a quarter of a day will be 6 hours.
Answer:
6 hours
Step-by-step explanation:
1/4=6h
2/4=12h
3/4=18h
4/4=24h
THE SALES TAX ON A TABLE SAW IS $14.85 WHAT IS THE PURCHASE PRICE OF THE TABLE SAW BEFORE TAX IF SALES TAX IS 5.5%
Answer:$0.81675
55/1000*$14.85=$0.81675
Step-by-step explanation:
Raj has a stack of four boxes each box weighs 3/5 lb how much do the boxes weigh all together
Answer:
All the boxes together weigh 2 2/5 lb
Step-by-step explanation:
3/5 + 3/5 + 3/5 + 3/5
= 6/5 + 6/5
= 12/5
= 2 2/5
Have a good day!
Answer:
3 pounds.
Step-by-step explanation:
I also want to say you know what's funny Raj is my initials my name is Rileigh andrew johnson. But anyway 3 pounds.
Because times 3 by 5=15 so our fraction is now 15/5
And now wil times 5 tintil we get to 15 for our whole number so 5 x 3 =15 so 3 is our whole number/ our answer 3 pounds.
I hope this helps have a awesome day
You lose an online auction for an autograph. Your losing bid of $28 is 40% of the winning bid. How much less was your bid than the winning bid?
Answer:
My bid was $42 less than the winning bid.
Step-by-step explanation:
The winning bid is x.
$28 is 40% of x
0.4x = 28
x = 28/0.4
x = 70
The winning bid was $70.
$70 - $28 = $42
Answer: My bid was $42 less than the winning bid.
If it take 10 mins to walk 3/7mile.how many time will it to take the rest of the mile?
Answer:
[tex]10 \div \frac{3}{7} \times \frac{4}{7} [/tex]
[tex]10 \times \frac{7}{3} \times \frac{4}{7} [/tex]
40/3
13.33 min
por que la estadística es una ciencia ???
I would say that statistics is a mathematical subject that allows you to explain scientific data. In a similar fashion, you could use mathematics to explain the various idea in physics as you can use statistics to interpret the results of experiments and the data collected.
Hope that helped!
Simplify 3√8w - 3√216w + 3√216w
Answer:
6√2w
Step-by-step explanation:
3√8w - 3√216w + 3√216w
6√2w -18√6w +18√6w
6√2w +0
6√2w
Use the pythagorean theorem a + b = c to find the length of a triangle when a = 9 ft and b = 40 ft
Answer:
41
Step-by-step explanation:
a^2 + b ^2 =c^2
9^2 + 40^2 = c^2
81+ 1600 = c^2
1681= c^2
[tex]\sqrt{1681[/tex] = [tex]\sqrt{c^{2}[/tex]
41 = c
\boxed{ \rm{ \pink{ \displaystyle \: QUESTION....}}}
By what number must we multiply [tex]\boxed{162}[/tex] to make it a perfect square.
Answer:
[tex] \pink{ \rm{SOLUTION:-}}[/tex]
[tex] \pink{ \rm{Here,}}[/tex]
[tex]\boxed{162}[/tex] can be a perfect square if the factor [tex]\boxed{2}[/tex] is a paired.
Hence,[tex]\boxed{162×2}[/tex],will be a perfect square.
[tex]: \implies{324 = {3}^{2} \times {3}^{2} \times {2}^{2} }[/tex]
Hence,the square root is [tex]3×3×2,i.e. 18[/tex]
[tex]{\rm{162 \: must \: be \: multiplied \: by \: 2 \: to \: make \: it \: a \: perfect \: square.}}[/tex]
Answer:
2
Step-by-step explanation:
[tex]\\ \rm\Rrightarrow \sqrt{162}[/tex]
[tex]\\ \rm\Rrightarrow \sqrt{2\times 3\times 3\times 3\times 3}[/tex]
4 3's are there which will cancel out of root overNow there is one 2 left .
We need another 2
So we get
[tex]\\ \rm\Rrightarrow 2(3)(3)[/tex]
That perfect square is 18^2=324NO LINKS!! A blimp, suspended in the air of 500 feet, lies directly over a line from Soldier Field to the Adler Planetarium on Lake Michigan (see the figure). If the angle of depression from the blimp to the stadium is 32° and from the blimp to the Planetarium is 23°, find the distance between Soldier Field and the Adler Planetarium.
Answer:
1978 ft (nearest foot)
Step-by-step explanation:
Using the Alternate Interior Angles theorem, we can deduce that the left base angle of the triangle is 32° and the right base angle of the triangle is 23°.
The triangle can be divided into 2 right triangles, both with height of 500ft (see attached diagram).
Using the tan trig ratio, we can calculate the base of each triangle.
[tex]\mathsf{\tan(\theta)=\dfrac{O}{A}}[/tex]
where:
[tex]\theta[/tex] = angleO = side opposite the angleA = side adjacent the angleLeft triangle
let [tex]x[/tex] = the base length
[tex]\implies \tan(32)=\dfrac{500}{x}[/tex]
[tex]\implies x=\dfrac{500}{\tan(32)}[/tex]
Right triangle
let [tex]y[/tex] = the base length
[tex]\implies \tan(23)=\dfrac{500}{y}[/tex]
[tex]\implies y=\dfrac{500}{\tan(23)}[/tex]
To find the distance between the Soldier Field and Adler Planetarium, simply sum [tex]x[/tex] and [tex]y[/tex]:
[tex]\implies \dfrac{500}{\tan(32)}+\dfrac{500}{\tan(23)}=1978.093447...[/tex]
Therefore, the distance is 1978 ft (nearest foot)
Find the slope of the line that passes through(5,7) and (7,6)
Answer:
Equation: y = -0.5x + 9.5.
Answer:
-0.5 or -1/2
Step-by-step explanation:
The formula to find the slope of a line given two points if [tex]\frac{y_2-y_1}{x_2-x_1}[/tex].
[tex]\frac{(6)-(7)}{(7)-(5)}[/tex] [tex]\frac{-1}{2}[/tex] [tex]-0.5[/tex]Therefore, the slope is -0.5 or -1/2.
Helene spends 15% of her budget on transportation expenses. Enter this percent as a decimal and as a fraction in simplest form.
Answer:
15% = 0.15
15% = [tex]\frac{15}{100}[/tex]
Step-by-step explanation:
please answer the question
Answers:
A) 2,600 cubes (13 x 40 x 5 = 2,600)
B) 6,600 cubes (11 x 20 x 30 = 6,600)
C) Boxes A and C or boxes B and C
D) 11,200 cubes (13 x 40 x 5) + (11 x 20 x 30) + (8 x 10 x 25) = 11,200
2c+3a
c=6
a=3
Evaluate the expression
Answer:
21
Step-by-step explanation:
2c + 3a
= 2(6) + 3(3)
= 12 + 9
= 21
Evaluate
2x^ 2 + y^2/3 for x = 1.5 and y = 3. Show all of your work.
Answer:
7.50
Step-by-step explanation:
To evaluate an expression for particular values of the variables, put those variable values in place of the corresponding variable and evaluate the resulting numerical expression according to the Order of Operations.
[tex]2x^2 +\dfrac{y^2}{3}\qquad\text{for x=1.5 and y=3}\\\\=2(1.5)^2+\dfrac{3^2}{3}\\\\=2(2.25)+\dfrac{9}{3}=4.50+3=\boxed{7.50}[/tex]
PLEASE HELP WITH THIS
Answer:
A. 19.96.
I originally got: x = 19.957458 which I round up and got 19.96.
Graph the solution to the inequality x<-1 or x<3
Answer:
(number line is attached as a file)
Step-by-step explanation:
The blue indicates x<-1 and the red indicates x<3. The yellow indicates the solutions to this inequality. (Since this is an "or" problem, both areas of the red and blue can work)
HELP PLEASE NOW URGENT!
Answer:
How Can I answer this
Step-by-step explanation:
Read the example over and over again until u get it
32,8,83,88,58,58,66,11,34,23 calculate the range
Answer:
80
Step-by-step explanation:
After spending some time arranging the numbers in order, we get the sequential order as 8, 11, 23, 32, 34, 58, 58, 66, 83, 88.
Next, we need to find the range. The Range of a data set is the difference between the largest and smallest number.
Thus, 88 - 8 = 80 as the range.Please solve with explanation
Step-by-step explanation:
Since the ball is going upwards, then down, we have a parabola.
In the form of
[tex] - {x}^{2} + bx + c = 0[/tex]
The leading coeffeicent is negative because we are increasing then decreasing.
Let use t for seconds and h is height.
So we have a function
[tex]h(t) = - {t}^{2} + b(t) + c[/tex]
Since I'm have no information: I'm use calculus and physics to solve this.
All objects fall at the speed of
[tex] - 9.8 \frac{m}{ {s}^{2} } [/tex]
Which is the unit for acclereation.
Since we have are trying to a poisition versus time function, note that the anti derivative of acclereation will give us velocity. So let calculate that
[tex] \frac{d}{dx} (a) = - 9.8x[/tex]
Then note that the anti derivative of velocity is poistion.
[tex] \frac{d}{dx} (v) = - 4.9 {x}^{2} [/tex]
So we know our leading coeffeicent, is -4.9x^2.
The ball is initially launched at a speed of 15 m/s. So the first derivative of the function at x=0, should be 15.
[tex] \frac{d}{dx} (x) = - 4.9 {x}^{2} + bx[/tex]
[tex]v = - 9.8x + b[/tex]
Since 0 times anything is 0, b must be 15 in order to have a first derivative of 15.
Since 0,1 is the y intercept, c will be 1.
So our answer is
[tex] - 4.9 {x}^{2} + 15x + 1 = 0[/tex]
b). When x=1, we get a height of 11.1. Plug in 1 into the function, and we get 11.1
c). Set the function equal to zero and use quadratic formula to solve. You will get 3.13 seconds.
d. The max occurs when the velocity is 0. So we can first differentiate the function, which we will get
[tex] - 9.8x + 15 = 0[/tex]
Then we solve for x.
We get 1.5 seconds. Then plug in 1.5 into the function, we get 12.5. So the max height is 12.5 and this occurs at 1.5 seconds.
e).
Work out the surface area of this cylinder.
12 cm
25 cm
B is the midpoint of AC, D is the midpoint of CE, and AE = 11. Find BD.
A. 4.5
B. 5.5
C. 11
D. 22
Answer:
5.5
Step-by-step explanation:
B is the midpoint of AC, D is the midpoint of CE
This means that CE = 1/2 AE
CD = 1/2 ( 11)
CD = 5.5
Use a graphing tool to graph f (x) = StartFraction negative 4 x cubed + x Over x cubed minus 4 x EndFraction to identify:
Limit of f (x) as x approaches plus-or-minus infinity
Answer:
-4
negative infinity
negative infinity
Step-by-step explanation:
Answer:
-4
negative infinity
negative infinity
Step-by-step explanation: