Step-by-step explanation:
The equations with solution x = 1 and y = (-1) will intersect each other at (1,-1) .
Equation 1 :-
Say slope is 1 .→ y - (-1) = 1 ( x -1)
→ y +1 = x -1
→ x - y -2 = 0
Equation 2 :
Slope = -1→ y - (-1) = -1( x -1)
→ y +1 = -x +1
→ x + y = 0
Required answer
vol is always measured in square units true false
How many significant figures are in 0.0624000?
Answer:
Use notes and youll get an answer
Step-by-step explanation:
Someone help! What is 4 1/4-5/6?
Answer:
3 5/12
Step-by-step explanation:
Answer:
3 5/12
Step-by-step explanation:
4 1/4-5/6
Get a common denominator of 12
4 1/4 *3/3 - 5/6 *2/2
4 3/12 - 10/12
Borrow from the 4
3 + 12/12 + 3/12 - 10 /12
3 15/12 - 10/12
3 5/12
Solve the equation. Then check your solution.
StartFraction v Over 7 EndFraction = 3
a.
–21
c.
–4
b.
21
d.
10
Please select the best answer from the choices provided
A
B
C
D
the price p of an aluminum tube is jointly proportional to its radius r and the length l. if a 12-foot pipe with 5-inch radius costs 5250 pesos, how much will be the cost of a 9-foot pipe with a 6-inch radius?
Answer:
4725 pesos
Step-by-step explanation:
The price p of an aluminum tube is jointly proportional to its radius r and the length l.
For joint variation, we have the expression:
p ∝rl
Hence
p = krl
Step 1
Solving for k
if a 12-foot pipe with 5-inch radius costs 5250 pesos,
5250 = k × 12 × 5
5250 = 60k
k = 5250/60
k = 87.5
Step 2
how much will be the cost of a 9-foot pipe with a 6-inch radius
We make use of the expression:
p = krl
p = 87.5 × 9 × 6
p = 4725 pesos
Therefore, the cost is = 4725 pesos
Eddie needs to paint a fence which has 10,000 square feet of surface. One gallon of paint covers 600 square feet.
How many whole gallons of paint will he need?
Answer:
17
Step-by-step explanation:
10000/600=16.67
Edna has $900 in a savings account that earns 5% interest per year. The interest is not compounded. How much interest will she earn in1 a year?
Answer:
I= $45
Step-by-step explanation:
Giving the following information:
Edna has $900 in a savings account that earns 5% interest per year.
To calculate the interest earned, we need to use the simple interest formula:
I= P*r*t
P= principal= $900
r= interest = 0.05
t= time= 1
I= 900*0.05*1
I= $45
What is 6 1/12 - 3 6/12? Move numbers to the boxes to show the answer. If there is no whole number put a 0 in the first box
6/12
- 1/12
= 5/12
6 - 3 = 3
= 3 5/12
2.5x + 1 = 26 help hurryyyyyyyyy!!!!?!?!??!?!?!
Answer:
2.5x=26-1
x=25/2.5
x=10
Step-by-step explanation:
Answer:
I assume you're solving for x, so the answer is 10
Step-by-step explanation:
First you isolate the x, so you need to subtract one from both sides, which results in the equation 2.5x = 25, and then you divide 25 by 2.5, which gives you x = 10
pls help me , i need this
what is the value of the y-coordinate of point A?
Answer:
0.26
Step-by-step explanation:
A (x , y), radius of circle = 1
y/radius = y/1 = sin 15°
y = 0.26
Answer:
sin 165..........
Step-by-step explanation:
What does this mean <_ but the line under it
Answer:
it means less than or equal to :)
Step-by-step explanation:
HELP ME [QUESTION IN IMAGE AND NOT THAT HARD EITHER]
Answer:
Button #4. The last button. 8p = t.
Step-by-step explanation:
This is because there are 8 pieces of string, and p is equal to the length of one string, so one string times 8 is the total length of all the strings.
What is an equation of the line that passes through the points ( 3 , 1 ) and ( − 3 , − 7 ) ?
Answer:
y = 4/3x - 3
Step-by-step explanation:
Use this formula to find the slope first.
(y2 - y1) / (x2 - x1)
(x2, y2) --> (-3, -7)
(x1, y1) ---> (3, 1)
Now plug in:
(-7 - 1) / (-3 - 3) = -8 / -6 = 4/3
Now find the y intercept by plugging any points to y= 4/3x + b
I will use (3, 1).
1 = 4/3(3) + b
1 = 4 + b (subtract 4 on both sides)
-3 = b
So the formula is
y = 4/3x - 3
I need help with these question please help me!!
The correct answer is n - 7 = 30
The yearly profits of a company are shown in the table.
Which answer describes the average rate of change from Year 2 to Year 4?
A Profits increased by an average of $10,600 per year
from Year 2 to Year 4.
B Profits increased by an average of $21,600 per year
from Year 2 to Year 4.
C Profits decreased by an average of $21,600 per year
from Year 2 to Year 4.
D Profits decreased by an average of $10,600 per year
from Year 2 to Year 4.
Answer:
Step-by-step explanation:
Hi, Emily. The average rate of change can be calculated by adding all the profits together and dividing by the different profits (4 profits all together A to D) so 10,600+21,600+-21,600+-10,600= 0
0/4= 0
So we can best describe this as 0 or nothing at all as it hasnt changed from year 2 to 4.
Many Regards,
Abdelmumen Nakoa
A fellow 8th grader.
Find the reciprocal of the numbers below: a. 1/3 b. 4/5 c. 7
Answer:
a. 1/3 = 3 b. 4/5 = 5/4 c. 7 = 1/7
Step-by-step explanation:
Reciprocal means switching the numerator to the denominator and the denominator to the numerator. Whenever you have a whole number, there is an imaginary 1 as the denominator that is why the reciprocal of 7 is 1/7.
Simplify the expression. 16m - 3/5 + 4m - 2 2/5 + 4
A 20m-3
B 20m+1
C 12m+1
D 12m-3
Answer:
it is either B or C
Step-by-step explanation:
Combine Like Terms
You roll two six-sided dice. What is the probability that the sum will be even or a multiple of five? Round your answer to the nearest tenth of a percent.
Answer:
0.51
Step-by-step explanation:
Find y.
Write your answer in simplest radical form.
Answer:
y = 6
Step-by-step explanation:
in a 45-45-90 triangle, the hypotenuse is [tex]\sqrt{2}[/tex] multiplied by the side across from the 45° angle
Find the specified value for the arithmetic sequence with the given characteristics. & 16 =
52, d = -2 a1 =?
Answer:
i actually dont know the answer i just need
Step-by-step explanation:
points lol sorry shawty
If ABC is 160, what is DBC?
D
(X + 15)
A
(3x + 25)
B
A. 160
O B. 115°
C. 30
D. 45
Answer:
B is the answer
Step-by-step explanation:
12 inches
What is the circumference of the above circle? Use t = 3.14
inches (do not round your answer)
Answer:
37.68
Step-by-step explanation:
D=12
PI=3.14
C=(D)(PI)
C=(12)(3.14)
C=37.68
There are 5 questions on a multiple choice exam, each with five possible answers. If a student guesses on all five questions, what is the probability the student gets two questions correct? Express your answer as a percent rounded to the nearest tenth.
3.8%
18.7%
20.5%
16.9%
Answer:
[tex]20.5\%[/tex]
Step-by-step explanation:
Let's write out a case for two specific questions being correct and the rest being incorrect:
[tex]\frac{1}{5}\cdot \frac{1}{5}\cdot \frac{4}{5}\cdot \frac{4}{5}\cdot \frac{4}{5}[/tex],
The [tex]\frac{1}{5}[/tex] represents the chances of getting the question correct, as there are 5 answers and 1 correct answer choice.
The [tex]\frac{4}{5}[/tex] represents the chances of getting the question incorrect, as there are 5 answers and 4 incorrect answer choices.
The equation above does show the student getting two answers correct and three answers incorrect, but it only shows one possible case of doing so.
We can choose any two of the five questions to be the ones the student gets correct. Therefore, we need to multiply this equation by the number ways we can choose 2 from 5 (order doesn't matter): [tex]\binom{5}{2}=10[/tex].
Therefore, the probability the student gets two questions correct is:
[tex]\frac{1}{5}\cdot \frac{1}{5}\cdot \frac{4}{5}\cdot \frac{4}{5}\cdot \frac{4}{5}\cdot \binom{5}{2}=\frac{1}{5}\cdot \frac{1}{5}\cdot \frac{4}{5}\cdot \frac{4}{5}\cdot \frac{4}{5}\cdot 10=0.2048\approx \boxed{20.5\%}[/tex]
Dev has 9 shells. Zoe has 55 shells. Zoe gives some shells to Dev. Now Zoe has 3 times as many as Dev.
How many shells does Zoe give to Dev?
Answer:let the initial number of shells that dev has be A, and initial number of shells that zoe has be B. let the number of shells that zoe gives to dev be x. after giiving x shells zoe is left with 3 times the number of shell as that of dev. therefore number of shells with zoe = 3×number of shells with dev.
Step-by-step explanation:
Convert 3.12 mm into cm, m and km.
Step-by-step explanation:
to cm = 3.12×100 = 312
to m = 3.12×1000 = 3120
:) HOPE THIS HELPS YOU
HALP TELLL ME HOW!!!!!!!!!!!!
Answer:
V=82944
Step-by-step explanation:
FORMULA (Im guessing u just wanted answer but if u want formula there u go.
V= 1/3(a^2h)
Answer:
[tex]576 ~cubic ~centimeters[/tex]
Step-by-step explanation:
[tex]B=144cm^2[/tex]
[tex]h=12cm[/tex]
[tex]V=1/3~B*h[/tex]
[tex]=1/3(144)(12)[/tex]
[tex]=576 cm[/tex]
--------------------
hope it helps...
have a great day!!
According to the graph, what is the value of the constant in the equation below?
(0.5, 1) (2,4) (3,6) (5, 10)
A. 1
B. 2
C. 0.5
D. 5
Answer:
B.
Step-by-step explanation:
y = mx + b
y = 2x
What number makes the expressions equivalent?
12(−1.4+0.4)=?+0.2
1
2
(
-
1
.
4
m
+
0
.
4
)
=
?
m
+
0
.
2
–1.4
1.4
–0.7
0.7
Answer:
-11,8 or 11,8........both are correct
The system of linear equations Negative 2 x + y = 8 and Negative 3 x minus y = 7 is graphed below.
On a coordinate plane, 2 lines intersect at (negative 3, 2).
What is the solution to the system of equations?
Answer:
x= -3
y= 2
Hope it helps :D
Answer:
its A
Step-by-step explanation:
on edge 2021