Answer:
20 is a composite number.
Ways that can be arranged:
5 x 4
10 x 2
20 x 1
Answer:
Once upon a time, there was a flock of doves that flew in search of food led by their king. One day, they had flown a long distance and were very tired. The dove king encouraged them to fly a little further. The smallest dove picked up speed and found some rice scattered beneath a banyan tree. So all the doves landed and began to eat.
Suddenly a net fell over them and they were all trapped. They saw a hunter approaching carrying a huge club. The doves desperately fluttered their wings trying to get out, but to no avail. The king had an idea. He advised all the doves to fly up together carrying the net with them. He said that there was strength in unity.
Each dove picked up a portion of the net and together they flew off carrying the net with them. The hunter looked up in astonishment. He tried to follow them, but they were flying high over hills and valleys. They flew to a hill near a city of temples where there lived a mouse who could help them. He was a faithful friend of the dove king.
CEOLATIONS AND INEQUALITIES
Finding angle measures of a triangle given angles with variables
In the triangle below, suppose that m U=(x+9)°, m = (2x+1), and mW=(7x)".
Find the degree measure of each angle in the triangle.
Answer:
seventeen degrees(17⁰)
solve and recieve brain list I took a better picture
answer plz this is on khan academy
Answer:
A
Step-by-step explanation:
This graph represents the inequality x < 2. you may be confused as to why the answer is not x ≤ 2, but the circle at the start of the line is not shaded in. This tells us that an answer to this inequality cannot be x
random khan question and I haven't done this in a year, I'm struggling.
Answer:
Add maybe
Step-by-step explanation:
add the 500+400+200 try that hope it helps have a great day
Richie is planting a rectangular garden with a perimeter of 39 feet. The length is twice the width. Find the dimensions of the garden
Answer:
l=13 ft
w=6.5 ft
Step-by-step explanation:
a rectangular garden would have 4 sides
two of the sides are x feet long
and the other two sides are 2x feet long
therefore
x+x+2x+2x=39
which is the same as saying
6x=39
divide both sides by 6 to get
x=6.5
so the width is 6.5 feet and the length is twice that or 13 feet
Find the measure of CD.
Round to the nearest tenth.
mCD=[?]degrees
Answer:
m(arc CD) = 14.1 cm
Step-by-step explanation:
Measure of an arc of the circle = [tex]\frac{\theta}{360}(2\pi r)[/tex]
Here 'r' = radius of the circle
θ = Angle subtended by the arc at the center of the circle
From triangle OED,
sin(∠EOD) = [tex]\frac{ED}{OD}[/tex]
sin(∠EOD) = [tex]\frac{\frac{12.7}{2}}{9.06}[/tex]
= [tex]\frac{6.35}{9.06}[/tex]
= 0.7
m∠EOD = 44.498
≈ 44.5°
Angle subtended by the arc CD at the center = m∠COD
= 2(44.5)
= 89°
m(arc CD) = [tex]\frac{89}{360}(2\pi)(9.06)[/tex]
= 14.07
≈ 14.1 cm
Completely factor the following expression 2 2 - 7x + 12. (1 point)
O (2 + 4) (x - 3)
O (2 - 4) (2+3)
O (+4)(+3)
O (2-4) (
23)
Answer:
(x-4)(x-3)
Step-by-step explanation:
x^2 - 7x + 12
Find what will multiply to make 12 and add to -7
(x - 4)(x - 3)
Lindsay invest $250 in a bank account that pays 3% interest each year how much money will be in her account after one year?
Find the measure of angle KLH pls help
In a survey, 31 people were asked how much they spent on their child's last birthday gift. The results were roughly bell-shaped with a mean of $33 and a standard deviation of $16. Construct a confidence interval at a 98% confidence level.
Give your answers to one decimal place
Answer:
The margin of error is 5. 00
9/10 ÷ 4/10 = ???????????
Answer:
2 1/4 or 9/4
Step-by-step explanation:
9/10÷4/10= 9/10*10/4
now simplify the 10
9/1 * 1/4= 9/4
now turn it into a mixed number
2 1/4
Answer:
2.25, 9/4 or 2 1/4
Step-by-step explanation:
What is the measure of m∠A
Step-by-step explanation:
x+2x+6x=180
9x=180
x=20°
m<A = 20°
x = y+2
x+4y=7
Please help!
Solve the system of equations by substitution. 3/8x + 1/3y = 17/24
Answer:
this question is not complete. need another equation
Step-by-step explanation:
give another equation then I can solve
[tex] \frac{3}{8} x = \frac{17}{24} - \frac{1}{3} y \\ x = \frac{17}{9} - \frac{8}{9} y[/tex]
Help
Don’t use for points or will take it back
Answer:
134=2x
X= 67
hope it helps
Find the equation of the exponential function represented by the table below:
Answer:
[tex]y =5(3)^x[/tex]
Step-by-step explanation:
Given
The attached table
Required
Determine the equation of the table
The table represents an exponential function. So, we make use of
[tex]y = ab^x[/tex]
When x = 0, y= 5.
So:
[tex]y = ab^x[/tex] becomes
[tex]5 = ab^0[/tex]
[tex]5 = a*1[/tex]
[tex]5 = a[/tex]
[tex]a = 5[/tex]
When x = 1; y = 15
So;
[tex]y = ab^x[/tex] becomes
[tex]15 = a * b^1[/tex]
[tex]15 = a * b[/tex]
Substitute 5 for a
[tex]15 = 5 * b[/tex]
Divide both sides by 5
[tex]\frac{15}{5} = \frac{5 * b}{5}[/tex]
[tex]3 = b[/tex]
[tex]b = 3[/tex]
Substitute values for a and b in: [tex]y = ab^x[/tex]
[tex]y =5(3)^x[/tex]
Solve the inequality for x.
X-3/4>=-1/8
Simplify your answer as much as possible
[tex]x - \frac{3}{4} \geqslant - \frac{1}{8} [/tex]
Solve the Inequality for x-term.[tex]x \geqslant - \frac{1}{8} + \frac{3}{4} [/tex]
Make both fractions to have same denominators by multiply 2 in 3/4 for both numerator and denominator.
[tex]x \geqslant - \frac{1}{8} + \frac{3 \times 2}{4 \times 2} \\ x \geqslant - \frac{ 1}{8} + \frac{6}{8} \\ x \geqslant \frac{5}{8} [/tex]
Hence, the solution is, "x is greater or equal to 5/8."
Answer[tex] \large \boxed{x \geqslant \frac{5}{8} }[/tex]
True or false ; 3/4 > 0.65
true
oops, i read it wrong LOL, it's true. .65 is less than .75
What is the value of the expression
Зр divided by8 + 4 when p is 32?
Answer:
-4
Step-by-step explanation:
Divide each side by '-1'.
p = -4
Simplifying
p = -4
Give a list with six different numbers with median 24 where the mean is smaller than the median. State the
mean of your list of numbers.
If mZ1 is 68º and m23 is (3x - 7)º, what is x?
Answer:
im sooooo confused
Step-by-step explanation:
is 71.08 greater than 71.106
Answer:
no, 71.106 is greater
Step-by-step explanation:
71.08= 71 and 8/100
71.106= 71 and 10/100
71.106's fraction is larger
y -3 = x
Pls explain thank u so much!!
Answer:
Y = x+3
Step-by-step explanation:
You want to start by figuring out how to get Y alone.
So to get it alone so you add +3 on both sides
Y - 3 = x
+3. +3
Positive 3 and Negative 3 cancel out making it zero.
Visual: 3 - 3 = 0
Since you cant take or add anything from x you leave it as + 3 so the answer should be.
Y = x + 3
I hope I could help :)
Find all values of k, if any, that satisfy the equation (in attachment). Enter the exact answer(s).
Compute the rightmost product:
[tex]\begin{bmatrix}1&2&0\\2&0&4\\0&4&-1\end{bmatrix}\begin{bmatrix}2\\2\\k\end{bmatrix}=\begin{bmatrix}1\times2+2\times2+0\times k\\2\times2+0\times2+4\times k\\0\times 2+4\times2+(-1)\times k\end{bmatrix}=\begin{bmatrix}6\\4k+4\\8-k\end{bmatrix}[/tex]
Then
[tex]\begin{bmatrix}2&2&k\end{bmatrix}\begin{bmatrix}6\\4k+4\\8-k\end{bmatrix}=2\times6+2\times(4k+4)+k\times(8-k)=-k^2+16k+20[/tex]
Use whatever methods you like to solve the remaining quadratic equation:
-k ² + 16k + 20 = 0 → k = 8 ± 2√21
A 90-foot wire runs from the top of a cell phone tower to the ground 63 feet from the base of the tower. approximately how tall is the cell phone tower?
Answer:
Step-by-step explanation:
Height = √(90^2-63^2) = √4131 ≈ 64 ft
how many times the size of 0.81 is 810
Answer:
810 is 100 times the size of 0.81
1-5 PLEASE SHOW WORK!! I will mark brainliest and a lot of points!!
Answer:
Step-by-step explanation:
2. -x+4+3x+2=2x+6
3. -x-2-4x-3=-5x-5
4.-36-24=-60
5. 9+10-6-6=7
A screening test wished to improve the diagnostic ability to identify Zika-infected fetuses in pregnancy rather than after birth. A total of 330 pregnant women (carrying one baby each) in Miami were tested. A total of 36 babies had Zika; 24 of whom tested positive. A total of 300 babies tested negative for the virus. What is the sensitivity, specificity, positive predictive value, negative predictive value, and accuracy of the test?
a. 94.5%
b. 33.3%
c. 66.7%
d. 96.0%
e. 98.0%
f. 80.0%
Answer:
Sensitivity = 66.7% (C)
specificity= 98.0% (E)
positive predictive value = 80.0% (F)
Negative predictive value = 96.0% (D)
accuracy of the test = 94.5% (A)
Step-by-step explanation:
Given the data in the question;
Disease Present Disease Absent Total
Test Positive 24 6 30
Test Negative 12 288 300
Total 36 294 330
so A = 24, B = 6, C = 12 and D = 288
sensitivity = [A/(A+C)]×100 = [24/(24+12)]×100 = [24/36]×100
Sensitivity = 66.7% (C)
specificity= [D/(D+B)]×100 = [288/(288+6)]×100 = [288/294]×100
specificity= 98.0% (E)
positive predictive value = [A/(A+B)]×100 = [24/(24+6)]×100
= [24/30]×100
positive predictive value = 80.0% (F)
Negative predictive value = [D/(D+C)]×100 = [288/(288+12)]×100
= [288/300]×100
Negative predictive value = 96.0% (D)
accuracy of the test = [A+D/(A+B+C+D)]×100 = [24+288/(24+6+12+288)]×100
= [312/330]×100
accuracy of the test = 94.5% (A)
Nothing 33.3% (B)
A right triangle has side 32 and hypotenuse 68 use the Pythagorean theorem to find the length of the third side?
Answer:
Step-by-step explanation:
x is the third side
x² + 32² = 68²
x² = 68² - 32² = 3600
x = √3600 = 60
which expression is equivalent to 2(3 - x) - 12 + 4x
3x - 6
3x - 7
2x - 7
2x - 6