Answer: -8 (use a website called demos graphs, it helps)
In Exercises 1-6, tell whether the ordered pair is a solution of the system of linear
equations.
1. (3,1); x + y = 4
2. (1,3); x - y = -2
3. (2,0); y = x - 2
2x - y = 3
2x + y = 5
y = -3x + 6
Answer:
Step-by-step explanation:
help me pretty please <3 (brainliest)
Answer:
The value is 0.025
Step-by-step explanation:
We get the z-score that is equal to the given value
Mathematically we have this as:
z-score = (x-mean)/SD
x = 93
mean =79
SD = 7
So we have the z-score as;
z-score = (93-79)/7 = 14/7 = 2
So we want to calculate the probability equal to the calculated z-score value of 2
Using the standard normal distribution table, we have this value as;
1 - 0.975= 0.025
Factor completely x2 − 12x +36
(x + 6)(x + 6)
(x + 6)(x − 6)
(x − 6)(x − 6)
(x − 18)(x + 2)
Answer:
(x−6)(x−6)
Step-by-step explanation:
MathPapa algebra calculator, thank me later
Answer:
c
Step-by-step explanation:
(3RD TIME POSTING THIS)
9.Solve the inequality
-9.1 < x -6.3
Answer:
is that the whole math question? I need a number after the < to solve this
Bethany has $3.10 in nickels and dimes. She has a total of 44 coins. What is the value of the nickels Bethany has?
$0.90
$1.30
$1.80
$2.60
Answer:
b
Step-by-step explanation:
Answer:
B. $1.30
Step-by-step explanation:
HELP ME ASAP !!!!
The two arc lengths shown on the circles are equal, but the circles are different sizes. 2 circles. One circle has a radius of 8 inches and a shaded sector with an angle measure of 90 degrees. The second circle has a shaded sector with an angle measure of 120 degrees. One circle has a radius of 8 in. What is the radius of the other circle? Arc length circle 1 = Arc length circle 2 StartFraction 90 degrees over 360 degrees EndFraction (2 pi (8)) = StartFraction 120 degrees over 360 degrees EndFraction (2 pi (4)) One-fourth (16 pi) = one-third (2 pi r) 4 = two-thirds r r =
Answer:
Do you have a diagram to follow?
It will much help, and easier for answering.
The radius of the other similar circle is, 6 inches
What is a circle?In mathematics, the circle is a two dimensional rounded figure which has no corner edges.
Standard form = (x - a)² + (y - b)² = r²
Angle = Arc / Radius
Given that,
The two arc lengths for the circles are equal
One circle has a radius of 8 inches and a shaded sector with an angle measure of 90 degrees
The second circle has a shaded sector with an angle measure of 120 degrees
The radius of second circle = ?
α = 90°
It is known that,
π radian = 180°
1° = π/180 radian
Now,
α = 90 × π/180
= π/2
β = 120°
= 120 × π/180
= 2π/3
In Circle 1,
Angle = Arc / Radius
π/2 = Arc/8
Arc = 4π
In both the circles, length of arc is same,
In Circle 2,
Angle = Arc / Radius
2π/3 = 4π/Radius
Radius = 6
Thus, the radius of second circle is 6 inches
To know more about circle check:
brainly.com/question/17357009
#SPJ6
can u help me with my warm up
Answer:
Look below.
Step-by-step explanation:
From looking at this figure we could break it up into 3 different shapes and find the area of each giving us the area of the shape by adding.
Area of a square formula: A=LW
Area of a triangle formula: A=1/2bh
Rectangle:
A=8 x 4
A=32
Triangle 1:
A=1/2bh
A=1/2(3)(2)
A=3
Triangle 2:
A=1/2bh
A=1/2(3)(3)
A=4.5
Now add them all together to get your area of the figure.
32+3+4.5=39.5
Area=39.5
5+2(w-6) how do i rewrite as addition and solve?
Answer:
[tex]2w - 7[/tex]
Step-by-step explanation:
1) Expand by distributing terms.
[tex]5 + 2w - 12[/tex]
2) Collect like terms.
[tex]2w + (5 - 12)[/tex]
3) Simplify.
[tex]2w - 7[/tex]
Therefor, the answer is 2w - 7.
Find the inverse function in slope-intercept form
f(x)=4/5x-16
Solve: -2(2x+6)= -3x
hope you find this helpful. :D
Answer:
below
Step-by-step explanation:
-2(2x+6)=-3x
1. distribute
-4x-12=-3x
2. add 3x to both sides
-x-12=0
3. add 12 to both sides
-x = 12
4. divide both sides by -x or -1
-x/-1 = 12/-1
ANSWER : x = -12
help pls!!! im not sure on this
Answer:
10
Step-by-step explanation:
Is this correct? Please help! It’s multi solution
Answer:
-3, -1, and 0.
Step-by-step explanation:
Anything from -4 and lower makes it false. So, -8 would have to be unselected. And -3 would have to be selected.
Francesca is growing 1/2 inch in each year. How many years will it take for her to grow 6 inches
Answer:
The number of years it will take for Francesca to grow 6 inches is 12 years
Step-by-step explanation:
The height to which Francesca is growing, Δh/Δt = 1/2 inch per year
The number of years, 'Δt', it will take her to grow 6 inches given as follows;
Δh/Δt = 1/2 inch/year
Δh = 1/2 inch/year × Δt
When Francesca grows 6 inches, we have;
Δh = 6 inches
∴ Δh = 6 inches = 1/2 inch/year × Δt
6 inches = 1/2 inch/year × Δt
Δt = 6 inches/(1/2 inch/year) = 12 years
The number of years it will take for Francesca to grow 6 inches, Δt = 12 years
Can the sides of a triangle have lengths 3, 16, and 19?
The answer is no. The Triangle Inequality Theorem states that the sum of the lengths of any two sides of a triangle must be greater than the length of the third.
Answer:
No
Step-by-step explanation:
Because you have to add the smallest ones which are 3 and 16 if u add them up it = 19 and you cant have 19 , 19 you have to have the smallest numbers ADD UP Greater Than the biggest number, when its equal to itself it doesn't form a triangle because the lengths are short by 1 please tell me if u need more help
find the values of the variables
Answer:
x = 31 and y= 11
Step-by-step explanation:
Since sum f angles on a straight line is 180°, hence;
2x+8+3x+17 = 180
Collect like terms
5x+25 = 180
5x = 180-25
5x = 155
x = 155/5
x = 31°
Similarly;
3x+17+5y+15 = 180
Substitute x = 31 into the equation
3(31)+17+15+5y = 180
93+32+5y = 180
125+5y =180
5y = 180-125
5y = 55
y = 55/5
y = 11°
Hence x = 31 and y= 11
the model represents the equation x - 1 < -4. What is the solution for the inequality?
Answer:
any number equal to or less than -4
Step-by-step explanation:
x - 1 < -4
< represents that -4 is a larger number than x - 1. we know that -4 is a negative number, so anything below -4 would be less. x = -4 would be a good solution, but the reality is that any number equal to or less than -4 is the correct answer. I hope this helps!
An isosceles triangle has the angle measures mares in the diagram?
Answer:
In isoceleus triangle Both angles are equal
In Triangle sum of all angles are eual to 180
∘
Step-by-step explanation:
Solve 4x+2−−−−−√3+6=18
SOMEBODY PLEASE HELP ME. ANSWER THIS QUESTION RIGHT.Use the quadratic equation x^2+10x+38=4 to complete the following statement drag and drop an answer choice into the empty box below.
Answer:
stop cheating on a pma 480
Step-by-step explanation: true story
Kyle held a balloon 8 feet off the ground, straight above his head. Ava is standing 15 feet directly to the right of Kyle.
Complete Question:
Kyle held a balloon 8 feet off the ground, straight above his head. Ava is standing 15 feet directly to the right of Kyle.
Write an equation using the Pythagorean Theorem to find the value of x.
How far are Ava's feet from the balloon?
Answer:
Ava's feet is 17ft away from the balloon
Step-by-step explanation:
Given
[tex]height = 8ft[/tex]
[tex]distance = 15ft[/tex]
The attached image represents the scenario
Using Pythagoras theorem (from the attachment), we have:
[tex]x^2 = 8^2 + 15^2[/tex]
[tex]x^2 = 64 + 225[/tex]
[tex]x^2 =289[/tex]
Take square roots of both sides
[tex]x = \sqrt{289[/tex]
[tex]x = 17[/tex]
Find the volume of each sphere. Round to the nearest tenth.
Answer:
267946.7
Step-by-step explanation:
here's the formula
V=4 /3πr3
Will mark brainliest hi! Pls answer only if you know <3
Answer:
(6, - 1 )
Step-by-step explanation:
Given the 2 equations
2x + y = 11 → (1)
[tex]\frac{1}{2}[/tex] x - 5y = 8 ← (2)
Multiplying (2) by - 4 and adding to (1) will eliminate the x- term
- 2x + 20y = - 32 → (3)
Add (1) and (3) to eliminate x
0 + 21y = - 21
21y = - 21 ( divide both sides by 21 )
y = - 1
Substitute y = - 1 into either of the 2 equations and solve for x
Substituting into (1)
2x - 1 = 11 ( add 1 to both sides )
2x = 12 ( divide both sides by 2 )
x = 6
solution is (6, - 1 )
What did the boy tree say to the girl tree: please show full worksheet answers. :) thank you
Answer:
I PINE FIR YEW
Step-by-step explanation:
What value of x makes this equation true? -90= -100+x
A. -190
B. 190
C. -10
D. 10
The measure of ⏜ is 161°, and the measure of ⏜ is 107°.
What is the measure of ∠ ?
Answer:
m<AEB = 46°
Step-by-step explanation:
Given:
Arc AD = 161°
Arc BC = 107°
Required:
m<AEB
Solution:
Vertex angle = ½(sum of intercepted arcs) => Theorem for angle inside a circle and its intercepted arcs)
This:
m<AED = ½(AD + BC)
m<AED = ½(161 + 107) => Substitution
m<AED = ½(268) = 134°
✔️m<AEB = 180° - m<AED => Linear pair theorem
m<AEB = 180° - 134° => substitution
m<AEB = 46°
3[tex]3x^{2} (2x^{3} + 4x[/tex]
I will give brainliest Sal's Sandwich Shop sells wraps and sandwiches as part of its lunch specials. The profit on every sandwich is $2 and the profit on every wrap is $3. Sal made a profit of $1,470 from lunch specials last month. The equation 2x + 3y = 1,470 represents Sal's profits last month, where x is the number of sandwich lunch specials sold and y is the number of wrap lunch specials sold.
Suppose Sal's total profit on lunch specials for the next month is $1,593. The profit amounts are the same: $2 for each sandwich and $3 for each wrap. In a paragraph of at least three complete sentences, explain how the graphs of the functions for the two months are similar and how they are different.
Answer
Sal's Sandwich Shop sells wraps and sandwiches as part of its lunch specials. The profit on every sandwich is $2 and the profit on every wrap is $3. Sal made a profit of $1,470 from lunch specials last month. The equation 2x + 3y = 1,470 represents Sal's profits last month, where x is the number of sandwich lunch specials sold and y is the number of wrap lunch specials sold.Change the equation to slope-intercept form. Identify the slope and y-intercept of the equation. Be sure to show all your work. Describe how you would graph this line using the slope-intercept method. Be sure to write using complete sentences. Write the equation in function notation. Explain what the graph of the function represents. Be sure to use complete sentences. f(x)=-2/3x+490
1. A rectangular room measures 13 feet by 15 feet. It is going to be carpeted 1 point with carpeting that sells for $31.50 per SQUARE YARD. (A square yard is 3 feet by 3 feet, or 9 square feet)... So, this carpet sells for 31.50/9 or $3.50 per square foot. b. If the room is drawn to 1/4 inch represents 1 foot scale, give the dimensions of the room in inches on the scale drawing."
Answer:
The dimensions of the room in inches on the scale drawing is
[tex]3\frac{1}{4}[/tex] inches by [tex]3\frac{3}{4}[/tex]inches OR 3.25 inches by 3.75 inches
Step-by-step explanation:
From the question, the dimension of the room is 13feet by 15feet.
Now, if the room is drawn to 1/4 inch represents 1 foot scale, i.e 0.25 inch represents 1 foot, then the dimension of the room in inches on the scale drawing can be determined as follows
Since 1 foot = 0.25 inch
∴ 13 feet on the scale drawing will be 13 × 0.25 = 3.25 or 3 1/4 inches
and 15 feet on the scale drawing will be 15 × 0.25 = 3.75 or 3 3/4 inches
Hence, the dimensions of the room in inches on the scale drawing is
[tex]3\frac{1}{4}[/tex] inches by [tex]3\frac{3}{4}[/tex]inches OR 3.25 inches by 3.75 inches.
Question in pic! ANSWER ASAP! will give brainliest!
Answer:
3,-4
Step-by-step explanation:
A balloon lifts off the ground and reaches a height of 200m. The total mass of the balloon is 1000 kg. What is the GPE of the balloon?
Answer:
1,960,000Joules
Step-by-step explanation:
Gravitational Potential Energy is expressed as;
GPE = mgh
m is the mass
g is the acceleration due to gravity
h is the height
Given
m = 1000kg
h = 200m
g = 9.8m/s
Substitute;
GPE = 1000 * 9.8 * 200
GPE = 9800 * 200
GPE = 1,960,000Joules
Hence the GPE of the balloon is 1,960,000Joules