Answer:
Its c,No, this is not a representative sample because each type of weed should be represented in proportion to the number of weeds actually present in the yard.
Step-by-step explanation:
Answer:
c
Step-by-step explanation:
Find the solutions for a triangle with a = 16, c =12, and B = 63º.
a. A = 71.6°; C = 52.89; b =12.0
C. A = 68.6° C = 45.40; b=12.0
b. A = 71.6°; C = 45.40; b =15.0
d. A = 68.6°; C = 52.89; b=15.0
Answer:
b. A = 71.6°; C = 45.40°; b =15.0
Step-by-step explanation:
The missing values can be found with the help of the Law of Cosine and properties of triangles:
Side b (Law of Cosine)
[tex]b = \sqrt{a^{2}+c^{2}-2\cdot a \cdot c \cdot \cos B}[/tex]
[tex]b = \sqrt{16^{2}+12^{2}-2\cdot (16)\cdot (12) \cdot \cos 63^{\circ}}[/tex]
[tex]b \approx 15.022[/tex]
Angle A (Law of Cosine)
[tex]\cos A = -\frac{a^{2} - b^{2}-c^{2}}{2\cdot b \cdot c}[/tex]
[tex]\cos A = - \frac{16^{2}-15.022^{2}-12^{2}}{2\cdot (15.022)\cdot (12)}[/tex]
[tex]\cos A = 0.315[/tex]
[tex]A= \cos^{-1} 0.315[/tex]
[tex]A \approx 71.639^{\circ}[/tex]
Angle C (Sum of internal angles in triangles)
[tex]C = 180^{\circ} - 63^{\circ} - 71.639^{\circ}[/tex]
[tex]C = 45.361^{\circ}[/tex]
Hence, the right answer is B.
What is the prime factorization for 36?
A. 22x32
B. 2x3x6
C. 6x6
Answer:
c. 6x6
Step-by-step explanation:
because 6x6 is =36
-1
(dont mind the circles on graph)
Answer:
-1 is the circle at in between -2 and 0
Step-by-step explanation:
bruh
Sam is transferring files from his friend's laptop into his flash drive. This is the formula for the size of the files on Sam's friends drive S (measured in megabytes) as a function of time t (measured in seconds): S(t)=5t+45
Use the above information to answer the following:
When the transfer began the drive had___ megabytes of files on it
Every 10 seconds, an additional___ megabytes are transferred into the drive.
Answer:
1. 45 megabytes
2. 50 megabytes
Step-by-step explanation:
Given
S(t) = 5t + 45
Required
Find S(t) when the transfer began
And find the additional transfer size at interval of 10 seconds
When the file transfer initially began, the value of t is 0.
Given that S(t)=5t+45.
Substitute 0 for t
S(0)=5 * 0 + 45
S(0) = 0 + 45
S(0) = 45.
Hence, the hard drive had 45 megabytes on it when the transfer started.
At every interval of 10 seconds. We take t to be 10, 20, 30...seconds
When t = 10
S(t)=5t+45 becomes
S(10) = 5(10) + 45
S(10) = 50 + 45
S(10) = 95 megabytes
When t = 20
S(t)=5t+45 becomes
S(20) = 5(20) + 45
S(20) = 100 + 45
S(20) = 145 megabytes
When t = 30
S(t)=5t+45 becomes
S(30) = 5(30) + 45
S(30) = 150 + 45
S(30) = 195 megabytes
Calculating the difference
Difference = S(30) - S(20) or S(20) - S(10)
Difference = 195 - 145 or 145 - 95
Difference = 50 or 50
See that the difference is the same.
So, at every 10 seconds interval, there's an additional 50 megabytes transferred
How to solve for x 2x + 3x -5 =20
Answer: x=5
Step-by-step explanation:
Simplify to 2x+ 3x -5 to 5x-5
5x- 5 = 20
Add 5 to both sides.
5x= 20+5
Simplify 20+5 to 25.
5x= 25
Divide both sides by 5.
x= 25/5
Simplify 25/5 to 5.
x=5
Which three-dimensional figures have lateral faces that are polygons? Check all that apply. cones cylinders hemispheres prisms pyramids spheres
Answer:
Prisms
Pyramids
Step-by-step explanation:
Lateral faces of a pyramid are triangles (3 sided polygon)
Lateral faces of prisms are rectangles (4 sides polygon)
Answer:
Cylinders, Prisms, Pyramids
Step-by-step explanation:
Hope this helps
Brainliest if correct pls
The square of 9 less than a number is 3 less than the number. What is the number?
-12 or 7
-12 or -7
- 7 or 12
7 or 12
Answer:
Let the number be x, then (x - 9)^2 = x - 3
x^2 - 18x + 81 = x - 3
x^2 - 19x + 84 = 0
(x - 12)(x - 7) = 0
x = 12 or 7
Step-by-step explanation:
can someone help me with (2/3 +1/4) • 5/6
Answer:
35/6
Step-by-step explanation:
add the fractions in parentheses by finding the common denominaters and adding. then multiply your answer by 5/6. :)
Answer:
The answer is 5/7 hope this helps
Step-by-step explanation:
what is the domaine of this function
Answer:
Step-by-step explanation:
The domain of a function is the complete set of possible values of the independent variable.
Simplify the following expression. 4^-11/3 divided by 4^-2/3
Answer:
Step-by-step explanation:
1
2 Simplify {4}^{11}4
11
to 41943044194304.
\frac{\frac{\frac{\frac{1}{4194304}}{3}}{{4}^{-2}}}{3}
3
4
−2
3
4194304
1
3 Use Negative Power Rule: {x}^{-a}=\frac{1}{{x}^{a}}x
−a
=
x
a
1
.
\frac{\frac{\frac{\frac{1}{4194304}}{3}}{\frac{1}{{4}^{2}}}}{3}
3
4
2
1
3
4194304
1
4 Simplify {4}^{2}4
2
to 1616.
\frac{\frac{\frac{\frac{1}{4194304}}{3}}{\frac{1}{16}}}{3}
3
16
1
3
4194304
1
5 Simplify.
\frac{\frac{1}{4194304}}{3\times \frac{1}{16}\times 3}
3×
16
1
×3
4194304
1
6 Use this rule: \frac{a}{b} \times \frac{c}{d}=\frac{ac}{bd}
b
a
×
d
c
=
bd
ac
.
\frac{\frac{1}{4194304}}{\frac{3\times 1\times 3}{16}}
16
3×1×3
4194304
1
7 Simplify 3\times 13×1 to 33.
\frac{\frac{1}{4194304}}{\frac{3\times 3}{16}}
16
3×3
4194304
1
8 Simplify 3\times 33×3 to 99.
\frac{\frac{1}{4194304}}{\frac{9}{16}}
16
9
4194304
1
9 Invert and multiply.
\frac{1}{4194304}\times \frac{16}{9}
4194304
1
×
9
16
10 Use this rule: \frac{a}{b} \times \frac{c}{d}=\frac{ac}{bd}
b
a
×
d
c
=
bd
ac
.
\frac{1\times 16}{4194304\times 9}
4194304×9
1×16
11 Simplify 1\times 161×16 to 1616.
\frac{16}{4194304\times 9}
4194304×9
16
12 Simplify 4194304\times 94194304×9 to 3774873637748736.
\frac{16}{37748736}
37748736
16
13 Simplify.
\frac{1}{2359296}
2359296
1
I need help.! ASAP PLEASE
Answer: The answer is 9
Step-by-step explanation:
It is 9 because 3x3x3x3 is basically 9x9 and 9x9 is 81, so 81 is the numerator. Then we gat to the denominator, which is 3x3 and 3x3 is 9. So the new fraction you get is 81/9, which is basically 81 divided by 9. 81 divided by 9 is 9.
Answer:
9
Step-by-step explanation:
Subtract 2 from the 4 exponents on the numeral, then multiply that exponent, which would be 3×3=9 .
Which describes the law of conservation of matter?
A. The total number of atoms cannot change during a reaction.
B. Chemical reactions cannot change reactants into products.
C. The reactants must have more atoms than the products.
D. A reaction has the same type of molecules before and after.
Answer: Choice A) the total number of atoms cannot change during a reaction
Matter cannot be created or destroyed. Instead, matter can be rearranged from one form to another. For example, boiling water turns the liquid into gas (steam) when it evaporates. The H2O molecules haven't been created or destroyed.
Please help, need an answer ASAP
Answer:
I think your answer is correct
How many ways can you plant 15 flowers from a group of 36 flowers?
Answer:
30.
Step-by-step explanation:
You could do 15 times the amount by 2 then add 6.
For the function y = log(x - 2)+1, which of the following statements is
true?
O A. The domain is (-2,-), and the range is all real numbers.
B. The domain is all real numbers, and the range is (1.).
C. The domain is (2,60), and the range is [1,0)
O D. The domain is (2.0), and the range is all real numbers.
SUBMIT
Answer:
Answer is A
Step-by-step explanation:
A P e X, didn’t just guess the answer like most people
(02.06)
A pair of parallel lines is cut by a transversal:
X
15
80
What is the measure of angle x? (4 points)
Use the data in the table to complete the statements.
Let x be the number of years since 1990. The year
2005 corresponds to an x-value of
The function that best models the data, with numerical
values rounded to the nearest hundredth, is f(x) =
x + 22.08.
Models have their limitations. For which year would this
model not make sense to use?
Answer:
Answer 1: 15
Answer 2: 11.55
Answer 3: 1985
Step-by-step explanation:
its the answers on edge 2020
What is the solution to log Subscript 5 Baseline (x + 30) = 3
x= -95
x= -5
x= 5
x=95
Answer:
95
Step-by-step explanation:
On Monday, a restaurant made $545 by selling 109 hamburgers.
If they sold 95 hamburgers on Tuesday, how much money did they make?
(Show your work below.)
Answer:
$475
Step-by-step explanation:
$545 / 109 = $5
$5 is the one hamburgers price
$5 x 95 = $475
$475 on Tuesday
Help!!!!!!
Describe the process you can use to solve a system of equations using a matrix.
Answer:
To solve a system of linear equations using an inverse matrix, let A be the coefficient matrix, let X be the variable matrix, and let B be the constant matrix.
Step-by-step explanation:
It just be that way sometimes
Which inequality is true for x = 2?
A) 6x + 20 < 29
B) 7x − 10 < 11
C) 14x + 10 < 37
D) 15x − 18 < 12
Answer: d.
Step-by-step explanation:
Add 18 to both sides.
15x<12+18
Simplify 12+18 to 30.
15x <30
Divide both sides by 15.
x < 15/30
Simplify 30/15 to 2.
x < 2
The inequality 15x − 18 < 12 is true for x = 2
What is inequality?A relationship between two expressions or values that are not equal to each other is called inequality.
Given that, are some inequalities, we need to find which of them is true for x = 2
a) 6x + 20 < 29
Solving for x,
6x + 20 < 29
6x > 9
x > 3
b) 7x − 10 < 11
7x < 21
x < 3
c) 14x + 10 < 37
14x > 27
x > 27/14
d) 15x − 18 < 12
15x < 30
x < 2
Hence, the inequality 15x − 18 < 12 is true for x = 2
Learn more about inequality, click;
https://brainly.com/question/30228778
#SPJ3
Math question down below
Answer:
4
Step-by-step explanation:
use the x's and y's in this...
y-y over x-x
to get answer.
Answer:
The answered is 4
Step-by-step explanation:
WHat is the value of 599 x (400+37) QUICKKKKKK!!
239,637
261,763
432,599
599,437
Answer:
b: 261,763
Step-by-step explanation:
do the parenthesis then mutiply the 2 #s
Option B is correct. The value of 599 x (400+37) is 261,763.
Given the values A, B and C. According to the distributive law:
A(B + C) = AB + AC
Applying the rule to the given question:
599 x (400+37)
= 599(400) + 599(37)
= 239,600 + 22,163
Adding up the result
= 261,763
Hene the value of 599 x (400+37) is 261,763.
Learn more here: https://brainly.com/question/12953263
PLEASE HELP 100 POINTS! D) How do you calculate the he residuals for a scatter plot?
E) calculate the residuals for you scatter plot in step 2d (the picture of the graph is attached) I’ll give brainliest if you answer both! :)
Answer:
PLEASE HELP 100 POINTS! D) How do you calculate the he residuals for a scatter plot?
E) calculate the residuals for you scatter plot in step 2d (the picture of the graph is attached) I’ll give brainliest if you answer both! :)
“To find the residual, you would subtract the predicted value from the measured value so for x-value 1 the residant would be” is how you would find the answer.
The legs of a right triangle measure 6 and sqrt(x). The
hypotenuse measures 10. Determine the value of x.
Answer:
The value of x is 64
Step-by-step explanation:
Given:
Length of the Legs of the triangle = 6 and √x
Hypothenus = 10
Required
Find x?
The legs of a rectangle is what is regarded to as the adjacent and the opposite sides of the triangle.
Assuming the following
Adjacent = 6 and Opposite = √x
We can then solve the given example using Pythagoras theorem as foloes;
[tex]Hyp^2 = Opp^2 + Adj^2[/tex]
By substituting 10 for Hyp; 6 for Adj and √x for Opp
[tex]10^2 = 6^2 + (\sqrt{x})^2[/tex]
Simplify
[tex]100 = 36 + z[/tex]
Collect Like Terms
[tex]x = 64[/tex][tex]x = 100 - 36[/tex]
Hence, the value of x is 64
Please Help Now Running out of time! In Sal’s sock drawer, there are 2 red, 2 blue, 2 yellow, 2 black, and 2 green socks. If he randomly picks one sock from the drawer, and then another, which fractions should Sal multiply to find the probability of choosing a pair of green socks?
Answer:
Step-by-step explanation:
C
Answer:
C
Step-by-step explanation:
2/10 1/9
Which residual plots indicate that the original data set has a linear relationship? Check all that apply
Answer: A, B and E
Step-by-step explanation:
A residual values should be equally and randomly spaced around the horizontal axis. If the plot looks like any of the images in C and D, then the data set is probably not a good fit for regression. A non-linear pattern is more appropriate.
Suppose that a teacher plans to give four students a quiz. The minimum possible score on the quiz is 0, and the maximum possible score is 10. What is the set of the four students scores that would make the standard deviation as large as it could be? A. 4,5,6,7 B. 0,0,10,10 C. 0,2,4,6 D. 1,4,9,10
Which 2 numbers have a least common multiple of 36?
Answer:
9 and 12,
Step-by-step explanation:
Answer:
nine and twelve (A)
Step-by-step explanation:
The Least Common Multiple of six and fifteen is thirty and the LCM of eight and eighteen is 72, this leaves only A which is correct.
Please help!!!
-9 is greater than
Answer:
Your answer would be D. -9
Step-by-step explanation:
Because the expression is already in decimal form.
Hope it's right!
Have a good day. =)
