Answer:
Another method to graph a line in the xy-axis or xy-plane is to use its intercepts. What are intercepts? These are points of the line that are found on the xx and yy axes. There are two kinds of intercepts.
The first one is called the x-intercept because it is the point of the line located on the horizontal axis (x-axis).
The second is the y-intercept which is the point of the line located on the vertical axis (y-axis).
Step-by-step explanation:
pls help me im really stuck
Answer:
10:1:5
Step-by-step explanation:
Let's mark names as their first letter:
Amy=A
Bill=B
Cara=C
The ratio should be like this A:B:C
A=10*B
C=A/2 or A*1/2
If it is the simplest, then Bill have to score 1 point.
10*1=10 (Amy's score)
10/2=5 (Cara's score)
If it is Amy:Bill:Cara then the ratio of points score by them is 10:1:5
I hope that I helped :)
CAN SOMEONE HELP PLEASE IM BEGGING YOU PLAS
Solve the system of equations algebraically show all work.
Y=-x^2+8x+11
Y=5x-7
Answer:
ummmm..... let's see..
Step-by-step explanation:
using "Almighty formula"
{Y = –x +/– √b^2 – 4ac / 2a}
so we name all the values behind the coefficients which are; –1^2, 8 and 11
so let's assign a,b,c to these values:
a =–1, b =8, c = 11
all you just do now is to add these values to the formula
you should be having Y =1 +/– √8^2 – 4×–1×11
———————————
2×–1
Y =1 +108
———— or Y = 1–108
–2 –––––
–2
now add and divide to get Y.
(your answer will be two)
An ecologist wants to know what percent of the 10,000 fish in a lake are cod. She conducts a study in which 50 fish are randomly caught. Of those 50 fish, 15 are cod. Based on this data, using a 95% confidence interval, the researcher can determine that the percent of fish that are cod in the lake is which of the following?
(1) Between 17% and 43%
(2) Exactly 30%
(3) Between 24% and 36%
(4) Between 20% and 40%
Answer:
3
Step-by-step explanation:
Because there are about 3,000 fish in the lake, 3,000 is 30 percent of 10,000. C or (3) gives the 6 percent each way around 30.
Patios can be made by mixing cubic meters of cement, gravel, and stones in the ratio 9:4:6. How much gravel is needed to make 209 cubic meters of patio?
Answer:
44 cubic meters
Step-by-step explanation
9 + 4 + 6 = 19
9/19 of the patio will be cement
4/19 of the patio will be gravel
6/19 of the patio will be stones
Work out the amount of gravel - 4/19 * 209 = 44 cubic meters
:)
Please help me solve ma
VW = 6
HOPE IT HELPS...!!!
two days of the year on which the noon sun is directly overhead at nearly 23.5 south or north December 21st and June 21
June 21st - summer solstice
December 21st - winter solstice
hope it helps...!!!
HELP PLEASE EXPLAIN HOW TO EVALUATE
Answer:
165
Step-by-step explanation:
The symbol [tex]\sum[/tex] is used to denote a sum of multiple terms.
The number below [tex]\sum[/tex] is the first term.
The number above [tex]\sum[/tex] is the last term.
Each term can be determined by using the given equation.
[tex]\begin{aligned}\displaystyle \sum_{n=3}^{8}5n & =5(3)+5(4)+5(5)+5(6)+5(7)+5(8)\\ & = 5(3+4+5+6+7+8)\\ & =5(33)\\ & = 165\end{aligned}[/tex]
So
[tex]\\ \rm\Rrightarrow \sum^8_{n=3}5n[/tex]
[tex]\\ \rm\Rrightarrow 5(3)+5(4)+5(5)+5(6)+5(7)+5(8)[/tex]
[tex]\\ \rm\Rrightarrow 15+20+25+30+35+40[/tex]
[tex]\\ \rm\Rrightarrow 165[/tex]
Use the method of elimination to solve the pair of simultaneous equation 2x+5y=4,2x-2y=18
[tex]2x+5y= 4~~~...(i)\\\\2x-2y = 18~~~...(ii)\\\\(ii) -(i):\\\\~~~~~2x-2y -2x -5y= 18 -4\\\\\implies -7y = 14\\\\\implies y = -\dfrac{14}7\\\\\implies y= -2\\\\\text{Substitute}~ y=-2~ \text{ in eq (i):}\\\\~~~~~~2x+5(-2) = 4\\\\\implies 2x-10 = 4\\\\\implies 2x = 10+4\\\\\implies 2x =14\\\\\implies x = \dfrac{14}2\\\\\implies x =7\\\\\text{Hence}~ (x,y) =(7,-2).[/tex]
Answer:
y = -2
x = 7
Step-by-step explanation:
Solving simultaneous equation
2x + 5y = 4 ---------------(I)
2x - 2y = 18 -----------(II)
Now, multiply equation (II) by (-1) and then add the equations. So that, 'x' will be eliminated and we can find the value of 'y'
(I) 2x + 5y = 4
(II)*(-1) -2x + 2y = - 18 {Now add}
7y = -14
y = -14/7 {on dividing both sides by 7}
[tex]\sf \boxed{y= -2}[/tex]
Now plugin y = -2 in equation (I)
2x + 5*(-2) = 4
2x - 10 = 4
2x = 4 + 10 {on adding 10 to both sides}
2x = 14
x = 14/2 {Divide both sides by 2}
[tex]\sf \boxed{x = 7}[/tex]
Bailey rolls a pair of dice 12 times, and the sum of 6 came up 5 times to calculate the experimental and theoretical probabilities of rolling a sum of six with a pair of dice
Answers:
Experimental probability = 5/12
Theoretical probability = 5/36
========================================================
Explanation:
The experimental probability, aka empirical probability, is what we observe to happen. The event of rolling a six happens 5 times out of 12 total rolls. That leads directly to the experimental probability of 5/12
----------------------------
The theoretical probability is based on predetermined odds, and can be done on paper rather than actually rolling the dice.
There are 6*6 = 36 ways to roll two dice. Of those 36 ways, we have these cases that add to 6
1+5 = 62+4 = 63+3 = 64+2 = 65+1 = 6There are five ways to add to 6, out of 36 outcomes total.
This means the theoretical probability of getting a sum of 6 is 5/36
a circle has a center at point C (2,2) and a point on the circle is located at point P (5,4). What is the diameter of the circle?
The centre C of the given circlee = (2, 2) P(5, 4) is a point on the circle. Join P to C and extend it to meet the circle at the other extremity Q of the diameter. Now PQ is a diameter of the circle with C as its midpoint. The the coordinates of Q be (x, y) The coordinates of midpoint are (2, 2) = [ (x +5)/2, (y + 4)/2] =%3E (x + 5)/2 = 2; =%3E x = 4 — 5 = —1 =%3E (y + 4) = 2; =%3E y = 4 — 4 = 0 The extremities of the diameter are (—1, 0) and (5, 4). Diameter² = [5 —(—1)]² + [ 4 —0]² = 6² + 4² = 36 + 16 = 52 Diameter = 2√13 We could have easily found the radius from the centre and the given point on the circumference. The radius r² = (5 — 2)² + (4 — 2)² = 9 +4 = 13 Radius r = √13 And diameter = 2 r = 2 √13
Hope i helped
-lukelaws
A triangular prism is 13 meters long and has a triangular face with a base of 12.6 meters and a height of 16.6 meters. What is the volume of the triangular prism?
Answer:
1359.54m^3
Step-by-step explanation:
The formula for the volume of a triangular prism is:
1/2([tex]b \times l )\times h[/tex]
b= base
l = length
h= height
Step 1: Plug the numbers into the formula
1/2(12.6*13)*16.6
Step 2: Simplify
163.8*16.6
1359.54
Step 3: Add units
The units used in the question were in meters, so the answer is also in meters.
Volume is always cubed, so it would be to the third power...1359.54m^3
If this answer helped you, I would greatly appreciate if you gave me brainliest :D.
NO LINKS!!
Find the volume of each sphere, both in terms of p and to the
nearest tenth. Use 3. 14 for p.
r = 6. 12 cm
d = 54 in
What equation is graphed in this figure?
y - 4 = -⅓(x+2)
y - 3 = ⅓ (x+1)
y + 2 = -3(x – 1)
y - 5 = 3(x - 1)
to get the equation of any straight line, we simply need two points off of it, let's use those two points in the picture below.
[tex](\stackrel{x_1}{0}~,~\stackrel{y_1}{2})\qquad (\stackrel{x_2}{1}~,~\stackrel{y_2}{5}) ~\hfill \stackrel{slope}{m}\implies \cfrac{\stackrel{rise} {\stackrel{y_2}{5}-\stackrel{y1}{2}}}{\underset{run} {\underset{x_2}{1}-\underset{x_1}{0}}}\implies \cfrac{3}{1}\implies 3 \\\\\\ \begin{array}{|c|ll} \cline{1-1} \textit{point-slope form}\\ \cline{1-1} \\ y-y_2=m(x-x_2) \\\\ \cline{1-1} \end{array}\implies y-\stackrel{y_2}{5}=\stackrel{m}{3}(x-\stackrel{x_2}{1})[/tex]
keeping in mind that for the point-slope form, either point will do, in this case we used the second one, but the first one would have worked just the same.
The length of Ruben's rectangular living room is 9 meters and the distance between opposite
corners is 10 meters. What is the width of Ruben's living room. Use Pythagorean theorem.
Consider the equation 3p – 7 p = 13. what is the resulting equation after the first step in the solution?
Answer:
-4p=13
Step-by-step explanation:
-3p-7p=13
-4p=13
p=-13/4
 Which of the following side lengths do not make up a right triangle?
A. 3,4,5
B. 5,12,13
C. 7,22,25
D. 8,15,17
Answer:
C. 7,22,25
Step-by-step explanation:
A. 3,4,5
=> p² + b² = h²
=> 3²+4² = 5²
=> 9+16 = 25
=> 25 = 25
B. 5,12,13
=> 5² + 12² = 13²
=> 25 + 144 = 169
=> 169 = 169
C. 7,22,25
=> 7² + 22² = 25²
=> 49 + 484 = 625
=> 533 ≠ 625
D. 8,15,17
=> 8² + 15² = 17²
=> 64 + 225 = 289
=> 289 = 289
so, the side that lengths do not make up right triangle is C. 7,22,25
Jorge finds that 56% of his 75 classmates like salsa music and 80% of his 60 relatives like salsa music. How many more of Jorge’s relatives, as compared to his classmates, like salsa music?
Answer: 6
Step-by-step explanation:
Classmate: 56/100 × 75/1 =42
relative: 80/100 × 60/1 = 48
Difference is 6
pls help me with this
Answer:
4 vertices6 edgesStep-by-step explanation:
A vertex is where three or more edges come together. All of the vertices are shown in the picture, so you can count them. There are 4 vertices.
An edge is where plane faces meet in a line. All of the edges except one are shown as solid lines in the figure. (The remaining edge is shown as a dashed line.) You can count them. There are 6 edges.
What are the least and greatest fractors of 45? of 36? of 60?
The GCF for 45,36,60 is 3
The LCM for 45,36,60 is 180
hope this helps
Preston needs to write an equation in slope-
intercept form to represent the relationship between x
and y in the table below. What will be the value of the
y-intercept in his equation? Record your answer on
the grid.
HELPS A GIRL OUT PLSSS
The line equation in its slope-intercept form is y = 1.5 · (x - 8), the slope and the y-intercept of linear function are 1.5 (according to the information of the table) and -12, respectively.
How to determine a linear function in slope-intercept form
By analytical geometry we know that linear functions can be constructed by know the location of two distinct points on a Cartesian plane and the slope-intercept form is described below:
y - y₁ = m · (x - x₁) (1)
Where:
x - Independent variabley - Dependent variablex₁, y₁ - Coordinates of the know point.m - SlopeAccording the table, the slope of the function is 1.5, as there a change in y of 3 for a change in x of 2. Lastly, we determine the line equation in slope-intercept form: m = 1.5, x₁ = 8, y₁ = 0
y = 1.5 · (x - 8)
And the y-intercept is found for x = 0:
y = 1.5 · (0 - 8)
y = -12
The line equation in its slope-intercept form is y = 1.5 · (x - 8), the slope and the y-intercept of linear function are 1.5 (according to the information of the table) and -12, respectively. [tex]\blacksquare[/tex]
To learn more on linear functions, we kindly invite to check this verified question: https://brainly.com/question/21107621
The surface area of a closed box is 2842 square meters. If the length is x m, the width is 6 M less than twice. The length and the height is 4 M more than the length. Calculate, the value of x
Kim is installing blue
white tile in her bathroom. She
made a diagram of
the layout showing the area of both colors. Write two
expressions that describe the area of the blue tile.
Answer:
4/9, 44.4%
Step-by-step explanation:
16 tiles are blue out of 36
16/36 = 4/9
4 ÷ 9 × 100 = 44.4%
A bakery sells mocha cupcakes and chocolate cupcakes. One day it sold 238 mocha and 42 chocolate. What percent of the cupcakes sold that day were mocha?
Answer:
35%
Step-by-step explanation:
The required percentage of the mocha cupcakes that were sold that day is 85%.
Given that,
A bakery sells mocha cupcakes and chocolate cupcakes. One day it sold 238 mochas and 42 chocolate. What percent of the cupcakes sold that day were mocha is to be determined.
The percentage is the ratio of the composition of matter to the overall composition of matter multiplied by 100.
Here,
Number of mocha cupcakes = 238
Number of chocolate cupcakes = 42
Total cupcakes = 238 + 42 = 280
Percentage of mocha sold = 238/280 = 0.85 or 85%
Thus, the required percentage of the mocha cupcakes that were sold that day is 85%.
Learn more about percentages here:
brainly.com/question/13450942
#SPJ5
help mah please I give dollar
Answer:
45 + X
Step-by-step explanation:
i didnt read it correctly sorry
P (-2, 4). 4 If P = (-2, 4), then find: 3 2 Ry=1 (P) y=1 1 2 3 4 5 -4 -3 -2 -1 0 -1 ([?], []) -2 -3 -4 Enter
Answer:
(-2, -2)
Step-by-step explanation:
A line of reflection is the perpendicular bisector of a point and its image. The given point is 3 units above the horizontal line of reflection. Its image will be 3 units below that line, at y = 1 -3 = -2.
The image coordinates are P'(-2, -2).
Find the 2 consecutive integers whose squares have a difference of 239
Answer:
119 and 120
Step-by-step explanation:
let the consecutive integers be n and n + 1 , then
(n + 1)² - n² = 239
n² + 2n + 1 - n² = 239
2n + 1 = 239 ( subtract 1 from both sides )
2n = 238 ( divide both sides by 2 )
n = 119
n + 1 = 119 + 1 = 120
the 2 integers are 119 and 120
as a check
120² - 119² = 14400 - 14161 = 239
There were 136 students and 34 adults at a concert in the auditorium. They filled 85% of the seats in the auditorium. How many seats are there in the auditorium?
Answer:
there are 200 seats and 170 of them were filled
136+34=170
= 170 is 85% of ?
? = 200
Write the equation of a line in slope-intercept form that passes through the point (0,-7) and has a slope of 3/4.
Answer:
y=3/4x-7
Step-by-step explanation:
(0,-7) is the y-intercept
3/4 is the slope
y=mx+b
m is the slope
b is the y-intercept
plug it in:
y=3/4x-7
please mark brainliest!
What’s the distance between 240 and 0
Answer:
The distance between 240 and 0 is 240
Step-by-step explanation:
You can find the distance between two values by getting it's absolute value.
You can setup the equation like this:
| 0-240 |
When you solve the equation you will find the absolute distance between 240 and 0.