Answer:
Graph.
y>−4x+5 and y>2x−7
Step-by-step explanation:
PLEASE HELP ME I'M FALLING PLSSS
Answer:
the value of x equals 11.25°
Step-by-step explanation:
6x + 2x =90°
8x=90°
---------
x=90/8
x=11.25°
Una micra (μm) es una milésima de milímetro. Si la densidad del agua es 1000 kg/m³, ¿cuál es la masa de 10⁹ μm³ de agua?
Answer:
La masa de 10⁹ μm³ de agua es 1 mg.
Step-by-step explanation:
La densidad del agua es:
[tex] d = \frac{m}{V} = 1000 kg/m^{3} [/tex]
En donde:
m: es la masa =?
V: es el volumen = 10⁹ μm³
Para encontrar la masa de agua debemos convertir las unidades del volumen de μm³ a m³:
[tex]V = 10^{9} \mu m^{3}*\frac{1 m^{3}}{(10^{6} \mu m)^{3}} = 10^{-9} m^{3}[/tex]
Ahora, la masa es:
[tex]m = d*V = 1000 kg/m^{3}*10^{-9} m^{3} = 10^{-6} kg = 10^{-3} g = 1 mg[/tex]
Por lo tanto, la masa de 10⁹ μm³ de agua es 1 mg.
Espero que te sea de utilidad!
If the m∠1=123° m ∠ 1 = 123 ° and m∠2= (2x+7)° m ∠ 2 = ( 2 x + 7 ) ° , determine the value of x that supports l∥m l ∥ m . Show your work to support your answer.
Answer:
25
Step-by-step explanation:
Let us assume that m<1 nad m<2 are supplementary. Since the sum of supplementary angles is 180degrees, hence;
<1 + <2= 180
123+2x+7 = 180
130+2x = 180
2x = 180 - 130
2x = 50
x = 50/2
x = 25
Hence the value of x is 25
2. A number cube is labelled 1 to 6
The cube is rolled 60 times.
Predict how many times each outcome will occur.
Explain each answer.
a) 1 is rolled.
b) An even number is rolled
c) A number greater than 3 is rolled.
d) 9 is rolled.
I
Answer:
a fair cube is expected to come up an equal number of times on each side
6 sides, 60 rolls
... each side is expected 10 times
a) 10 ... expected outcome
b) 30 ... expected outcome
c) 30 ... expected outcome
d) 0 ... only 6 sides
find the total cost if a pair of shoes cost $49.95 and the tax is 5.5%
Answer:
52.70
Step-by-step explanation:
49.95x.055=2.75 tax
49.95+2.75=52.70 total costs
help ASAP PLEASE look at it help plsease
Find the value of x.
Answer:
x = 16
Step-by-step explanation:
Angles in a triangle add up to equal 180
Hence, 9x - 8 + x + 10 + x + 2 = 180
^ ( note that we just created an equation that we can use
to solve for x )
We now solve for x using the equation created.
9x - 8 + x + 10 + x + 2 = 180
step 1 combine like terms
9x + x + x = 11x
-8 + 10 + 2 = 4
we now have 11x + 4 = 180
step 2 subtract 4 from each side
180 - 4 = 176
4 - 4 cancels out
we now have 11x = 176
step 3 divide each side by 11
176 / 11= 16
11x / 11 = x
we're left with x = 16
In a bag, there are 8 blue marbles, 4 yellow marbles, and 6 red marbles. First question: What is the probability of not selecting a blue or yellow marble? Second question: What is the probability of first selecting a red marble, then selecting a yellow marble? Third question: What is the probability of first selecting a blue or yellow marble, replacing the marble, then selecting a red or blue marble?
Answer:
Question 1
P(not b or y) = P(r) = 6 / (8 + 4 + 6) = 6 / 18 = 1/3Question 2
Assumed no replacement here
P(r then y) = 6/18 * 4/17 = 4/51Question 3
P(b or y) = (8 + 4) / 18 = 12/18 = 2/3P(r or b) = (6 + 8)/18 = 14/18 = 7/9P(b or y then r or b) = 2/3*7/9 = 14/27Shanice read a book that was 123 pages long. The first week, she read 67 pages. Then, she read the rest of the book over the next 7 days. Shanice read the same number of pages each of the 7 days. Over the 7 days, how many pages did she read each day?
Answer:
She read 8 pages each day
Step-by-step explanation:
123 - 67 = 56
56/7 = 8
PLEASE GIVE BRAINLIEST THANK YOU
Answer:
8 pages
Step-by-step explanation:
Alice draws a triangle and measures two of the angles with a protractor. The angle measures are 65 and 45. Cal says the measure of the third angle is 60. Explain why Cal's answer is incorrect.
Answer: Cal's answer must be incorrect because the sum of angles is incorrect.
Step-by-step explanation:
The sum of all interior angles of a triangle is 180 degrees.
According to Cal, the three angles of the triangle has magnitude 65, 45 and 60 respectively.
Sum of angles = 65+45+60
i.e. Sum of angles = 170 which is not equal to 180
Hence, Cal's answer must be incorrect because the sum of angles is incorrect.
Which of the following is a graph of x2 < 25?
А
2
3
4
5
5
1
-5
.
3
B.
3
6
2
4
s
5
.2
-4
-3
С
5
E
.5
3
- 1
2
0
D
0
1
.
1
3
5
4
6
5
.
E
1
2
4
6
-6
-4
5
F No Solution
A. Graph A
B. Graph B
Ở Granh
Answer:
why are you running
Step-by-step explanation:
why are you running
If the arc measure is 90 degrees and the diameter of the Circle is 10. what is the arc length?
Answer:
15.7 degrees.
Step-by-step explanation:
In circle E with m DEF 36 and DE = 3 units find area of
sector DEF. Round to the nearest hundredth.
E
Answer:
A ≈ 2.83 units²
Step-by-step explanation:
The area (A) of the sector is calculated as
A = area of circle × fraction of circle
= πr² × [tex]\frac{36}{360}[/tex]
= π × 3² × [tex]\frac{1}{10}[/tex]
= [tex]\frac{9\pi }{10}[/tex]
≈ 2.83 units² ( to the nearest hundredth )
When graphing the coordinates (2,1) you would....
A. first move two spaces on the x-axis and then up 1 space on the y-axis
B. first move two spaces up on the y-axis and then 1 space over on the x-axis
Answer:
The answer is A :)) hehe.
In ΔDEF, the measure of ∠F=90°, EF = 2.3 feet, and FD = 2.9 feet. Find the measure of ∠D to the nearest tenth of a degree.
Answer:
[tex]\theta=38.42 \textdegree[/tex]
Step-by-step explanation:
From the question we are told that:
Angle of F [tex]\angle F=90 \textdegree[/tex]
Length of [tex]EF = 2.3 feet,[/tex]
Length of [tex]FD= 2.9 feet,[/tex]
Generally the equation for Angle D [tex]\theta[/tex] is mathematically given by
Since [tex]\angle F=90[/tex].The triangle is a right angle Triangle
Therefore
[tex]tan \theta=\frac{EF}{FD}[/tex]
[tex]tan \theta=\frac{2.3}{2.9}[/tex]
[tex]\theta=tan^{-1} 0.793[/tex]
[tex]\theta=38.42 \textdegree[/tex]
What is the value of X?
Answer:
x=20
Step-by-step explanation:
First, find LJ
Angle L = 60 (180 - 30 - 90)
The cosine of an angle is equal to the ratio of the adjacent side to the hypotenuse.
cos(L)=adj/hyp
cos(60)=LJ/40√2
LJ = cos(60)*40√2
LJ = 20√2
Now you can use LJ to find x. You also know the value of each angle, 45
x=20√2⋅cos(45)
x=20
what is the probability that Edward is assigned to the Sioux Platoon
Answer:
Is there answer choices?
Step-by-step explanation:
Answer:
Is there answer choices?
Step-by-step explanation:
SOOO in math class today we learned more about algebra such as
X + 10 = Y should I care??
Like srsly miss teacher ???
lol
welp
that's lame!!
Hello there I hope you are having an great day :)
X + 10 = Y if you are trying to work out Y it would equal y = x + 10
If you are trying to work out X it would equal x = y − 10
Hopefully that helps You :)
A train travels a distance of 120 km at a constant speed of V kmh 1. If the speed
is reduced by 10kmh), then the time taken to the journey is increased by one
hour. Find the constant speed V of train.
Help me Please
Answer:
The speed of the train is 40 km/h.
Step-by-step explanation:
Since a train travels a distance of 120 km at a constant speed of V km / h, and if the speed is reduced by 10km / h, then the time taken to the journey is increased by one hour, to find the constant speed V of the train, the following calculations must be performed:
20 x 6 = 120
10 x 7 = 140
30 x 4 = 120
20 x 5 = 100
40 x 3 = 120
30 x 4 = 120
Therefore, the speed of the train is 40 km/h.
Please help me with this question!
Answer:
n=7
Step-by-step explanation:
If they are both increased by 7, you will have 12/18, which is equal to 2/3
please help with this question or I might fail.
How many leaves are 7 inches or longer
Answer:
7in = 4
8in = 3
9in = 1
4 + 3 + 1 = 8
HELP PLEASE I WILL MARK BRAINLIEST
Answer:for points
Step-by-step explanation:
Hsjsnsns.
What is Median?
I'm not going to be online for 3 weeks. No need to worry about me, okay :) <3 <3
Answer:
See below
Step-by-step explanation:
The median is the middlemost term in a numerically ordered data set.
For example, if I had for my data set {2,2,3,5,6,7,8} then 5 would be the median because it's the middlemost term.
PLEASE HELP ASAP ILL MAKE BRAINLIEST HURRY
The graph below shows the relationship between the number of tickets sold for a music concert and the amount of money collected from the sale of the tickets. (1 pt.)
Which equation represents the relationship between the tickets sold (t) and the money collected (c)?
A
c=3t
B
c=5t
C
c=10t
D
c=15t
Answer:
D
Step-by-step explanation:
I'm pretty sure its D but correct me if i got it wrong!
Tell whether the angles are complementary, supplementary, or neither.
Answer:they are supplementary
Step-by-step explanation:
Which statement is true about the local minimum of the graphed function? O Over the interval [-4. -2], the local minimum is 0 Over the interval [-2, -1), the local minimum is 25 o Over the interval [-1.4], the local minimum is 0 Over the interval [47], the local minimum is -7.
Answer:
Step-by-step explanation:
123
Lauren is given a 12% pay rise.Her new salary is £24,080. What was Lauren's salary before the pay rise?
Answer:
The base salary was £21,500.
Step-by-step explanation:
Giving the following information:
Increase rate (g)= 12%
New salary= £24,080
To calculate the base salary, we need to use the following formula:
Base salary= new salary / (1 + increase rate)
Base salary= 24,080 / (1.12)
Base salary= £21,500
The base salary was £21,500.
The perimeter, P, of a rectangle is equal to twice the sum of the length and width of the rectangle. Determine the width of a rectangle with a perimeter of 34 inches and a length of 5 inches. In your final answer, include all necessary calculations.
Answer:
12 inches
Step-by-step explanation:
5 + 5 = 10
34 - 10 = 24
24 ÷ 2 = 12
Therefore, the answer is 12 inches.
What is the first step you will use to solve this equation:
4x +2 = 7x - 13
1. Subtract 2 from both sides of the equation
4x + 2 = 7x - 13
4x + 2 - 2 = 7x - 13 - 2
2. Simplify
4x + 2 - 2 = 7x - 13 - 2 -----> 4x = 7x - 13 - 2 -----> 4x = 7x - 15
3. Subtract 7x from both sides of the equation
4x = 7x - 15
4x - 7x = 7x - 15 - 7x
4. Simplify
4x - 7x = 7x - 15 - 7x -----> -3x = 7x - 15 - 7x -----> -3x = -15
5. Divide both sides of the equation by the same term
-3x = -15
-3x/-3 = -15/-3
6. Simplify
-3x/-3 = -15/-3
x = -15/-3
x = 5
7. Solution
x = 5
Hope that helps! :D