Which method would be the best to solve the following system of equations?
Answers
Answer:
Graphing the equations and seeing where they intersect. Use DEMOS Graphing Calculator off of the internet. It works great. I even use it to check my work when I use algebra
This method also works well with quadratics and lines
Step-by-step explanation:
Related Questions
Find f(-4) if f(x)=-x-5
Answers
Answer: -1
Step-by-step explanation:
f(x)=-x-5
f(-4)=-(-4)-5
f(-4)=4-5
f(-4)=- 1
3a^2-7a+6=
( for a= -2 )
Answers
Answer:
32
Step-by-step explanation:
Substitute a = - 2 into the expression and evaluate
3(- 2)² - 7(- 2) + 6 = 3(4) + 14 + 6 = 12 + 14 + 6 = 32
Answer:
32
Step-by-step explanation:
a^2=4
3*4=12
3a^2=12
7a= -14
-7a=14
6=6
12+14+6=32
Terry has a box of craft beads.
• 11 are green
• 27 are yellow
• 24 are blue
• 38 are red
What percent of the beads are red?
Answers
Answer:
38% of the beads are red
what is the y intercept of 2y - 2x = 8
Answers
Answer:
Step-by-step explanation:
Write in y = mx + b form
here, b ----> y intercept
2y - 2x = 8
2y = 2x + 8 {Divide the equation by 2}
[tex]\frac{2y}{2}=\frac{2x}{2}+\frac{8}{2}\\[/tex]
y = x + 4
y-intercept = 4
Diameter of a beach ball is 3 feet what is the volume
Answers
v= (4/3)* pi *(d/2)^3 = (4/3) * pi * (3/2)^3 = about 14.14 cu ft Hope this helps you
Answer:
14.13
Step-by-step explanation:
[tex] v = \frac{4}{3} \pi \: {r}^{3} [/tex]
v=4/3×3.14×1.5^3
v=4/3×3.14×3.375
use calculator
v=14.13 feet^3
MARKING AS BRAINLIEST
Ethen is ‘x’ years old. Raj is 8 years older than Ethen. Find the sum of their ages in 6 years time.
Answers
Answer:
2x+20
Step-by-step explanation:
Given
Age of Ethen = x
If Raj is 8 years older than Ethen, then;
Raj = x + 8
6 years time
Ethen age = x+ 6
Raj = x+8+6 = x+14
Sum of ages in 6 years time = x+6+x+14
Sum of ages in 6 years time = 2x + 20
Hence the required sum of ages is 2x+20
A taxi company charges passengers $1.75 for a ride, no matter how long the ride is, and an additional $0.40 for each mile traveled. The rule c = 0.40m + 1.75 describes the relationship between the number of miles m and the total cost of the ride c.
a. What is the charge for a 1-mile ride?
b. What is the charge for a 2.7-mile ride?
A. $0.40; $5.13
B. $1.75; $2.15
C. $0.40; $1.08
D. $2.15; $2.83
Answers
Answer: THE ANSWER IS D. $2.15; $2.83
a taxi company charges passengers 1.75 for a ride,?
a taxi company charges passengers 1.75 for a ride, no matter long the ride is, and an additonal $0.40 for each mile traveled. the rule c=0.40m+1.75 describes the relationship between the number of miles M and the total cost of the ride c.
what is the charge for 2.7 mile ride
A. 5.13
B. 1.08
C. 2.15
D. 2.83
Favorite Answer
D 2.83
c = 0.4. * 2.7 + 1.75
=> c = 2.83
Step-by-step explanation: It Looks Like The Answer is D
c=0.40(2.7)+1.75=$2.83 so $2.83 is the answer
1.75+(2.7*.4)=
1.75+1.08=
2.83
The answer is $2.83
30 POINTS!! PLEASE HELP
What is the area of the shape below?
Answers
Answer:
168 square feet
Step-by-step explanation:
A = 18 x 8 + 8 x 6 x 1/2
A = 144 + 24
A = 168
Hope that helps!
Answer:
150
-i just learned that and you have to multiply lenght × width × height
18×8×6 and its 150
twice a number decreased by six is 32 use "x" for the variable
Answers
Hope that helpss
What is the slope of y=-4
Answers
Answer:
Zero
Step-by-step explanation:
Any equation that is y = a number, you have a horizontal line, with a zero slope, think of HOY, H(orizontal) O=zero Y=#
Help. look at the screenshot below.
Answers
Answer:
The third option
Step-by-step explanation:
Find the value of x.
Answers
Answer:
Step-by-step explanation: he standard form to find the value of X in multiplication operation is. Divisor × Dividend = Product. Let us take dividend = x, Divisor × x = Product. Then the formula to find the value of x is. X = product / Divisor
Answer:
x = 99
Step-by-step explanation:
4 sided polygon = 360 degrees
92 + 68 + 101 + x = 360
261 + x = 360
-261 -261
x = 99
Hope this helped! Have a nice day! Plz mark as brainliest!!!
-XxDeathshotxX
lenora spent 1/3 of her time studying. What percentage of her time did she spend studying?
Answers
Answer:
XD 175 + 25$ like they said would be 200. jake would still be behind $25, therfore being the wrong answer provided.
XD 175 + 25$ like they said would be 200. jake would still be behind $25, therfore being the wrong answer provided.
Step-by-step explanation:
Answer:
(33⅓)%
Step-by-step explanation:
A box of pasta contains 16 ounces of pasta. If on serving weighs 1/3 ounces, how many servings are in one box of pasta
Answers
Explanation: 3 servings for one ounce, so 3 x 16 ounces = 48
9) Find the value of two numbers if their sum is 17 and their difference is 1.
Answers
Answer: 9 and 8?
Step-by-step explanation:
can someone help pls pls pls ill give brainliest
Answers
Answer: x= - 3/4
Step-by-step explanation: too much to explain
Solve the equation -4p+9=-5
Answers
Answer:
p= 7/2
-4p+9=-5
-4p=-14
p=14/4
p=7/2
-4(8h-5)= -16 round to the nearnest hundreth
Answers
Answer:
h=9/8 or 1.125 but since yo said round it's 1.13
Step-by-step explanation:
8m+4m=12m...one solution.. two solutions.. no solutions.. infinite solutions.. which solution is it?
Answers
Answer:
One Solution
Step-by-step explanation:
Find the equation of the line shown.
Pls helllppp
Answers
Answer:
what side is it asking for ? right or left
I was never told how to do this, i need help
Answers
Answer:
nember 1: 2/7 as decimal
number 2: 2 1/6 as decimal
number 3: 3/16 as a decimal
number 4: 3/4 as a decimal
number 5: 5/10 as a decimal
number 6: 13 7/8 as a decimal
number 7: 8 10/15 as a decimal
number 8: 5/8 as a decimal
Mhanifa if you are online could you please help me. What is the value of X?
Answers
Answer:
A. x = 42.5°Step-by-step explanation:
AB is the diameter, therefore ACB is right angle
2x + 5° = 90°2x = 85°x = 42.5°Correct option is A
WILL GIBE BRAINLEST
The figure is made up of two cones and a cylinder. Both cones and the cylinder have a 10 mm diameter. What is the exact volume of this figure? What is the volume of this figure? A.250(pi)mm³
B.4007(pi)mm³
C.6257(pi)mm³
D.2500(pi)mm³
Answers
Answer:
Step-by-step explanation:
The answer choices don’t make sense. The volume of a cylinder of height 45mm and radius 5mm = π5²*45 = 1125π mm³.
Three of the answer choices are larger than 1125π.
:::::
volume of one cone = πr²h* ⅓
Volume of cylinder section = πr²h
Total volume = πr²h*⅔ + πr²h = πr²h*5/3 = π5²*15*5/3 = 625π
A,B,C, or D?
________
Answers
Answer: It is
D. Blue
!
Which system is represented by the graph shown here
Answers
Help me solve this problem please
Answers
Answer:
CD = 45
Step-by-step explanation:
CE = 180
( x + 6 ) + ( 4x - 21 ) = 180
5x - 15 = 180
5x = 195
x = 39
substitute x in CD
CD = x + 6
CD = 39 + 6
CD = 45
Find the missing length of the triangle 12 in and 35 in.
Answers
Answer:
37
Step-by-step explanation:
The answer is 37 I tried it and its right
ASAP PLEASE HELP I WILL GIVE BRAINEST!!!
What is x and y
Answers
Answer:
y = 9
x = 6
Step-by-step explanation:
what does r equal?pls help me
Answers
Answer:
r ≥ -49/11
Simplified versions: r ≥ -4.45 or r ≥ -4 5/11
Answer: [tex]r \ge -\frac{49}{11}[/tex]
r is greater than or equal to the fraction -49/11
==========================================================
Work Shown:
[tex]r + 5(-2r-10) \le -4r - 1 + 6r\\\\r - 10r - 50 \le -4r - 1 + 6r\\\\-9r - 50 \le 2r - 1\\\\-9r-2r \le - 1 + 50\\\\-11r \le 49\\\\r \ge \frac{49}{-11}\\\\r \ge -\frac{49}{11}\\\\[/tex]
Note how the inequality sign flips. This happens any time you divide both sides by a negative number.
Multiply. Express in simplest form. 3/6 x 4/5
Answers
Answer:
2/5
Step-by-step explanation:
Answer:
12/30 = 2/5
Step-by-step explanation:
numerator x numerator, denominator x denominator, 6 goes into both