Answer:
5/14Step-by-step explanation:
There are 5 red marbles out of 8.
The probability of the first red:
P(r1) = 5/8Now we have 7 total marbles and 4 of them are red.
The probability of the second red:
P(r2) = 4/7The probability of two red is:
P(rr) = 5/8*4/7 = 5/14help please thank you
the answer of this question is B
Pls help on this question 30 POINTS!!
Answer:
The Noble gases are the least reactive of any elements on the periodic table.
Explanation:
All of the elements in Group Zero are noble gases. The list includes helium, neon (Ne), argon (Ar), krypton (Kr), xenon (Xe), and radon (Rn). They are also called inert gases because they do not react with other elements of periodic table. The reason behind their inertness is that their outermost shell is complete and they do not have the tendency to lose or gain electrons.
Answer:
The Halogens form acidic compounds with hydrogen
Explanation:
The non metals in group 7 of the periodic table are known as the halogens. When they react wit hydrogen their respective acid is formed For example, hydrogen chloride (HCl)is produced when hydrogen combines with Chlorine and in the same way Hydrogen Bromide is produced when Bromine reacts with hydrogen.
Answer:
The halogens are the most reactive among all the non metals
Explanation:
The non-metal elements in Group 7 are known as the halogens which consist of five chemically related elements: fluorine (F), chlorine (Cl), bromine (Br), iodine (I), and astatine (At). They get less reactive as we go down the group. This is the opposite trend to that seen in the alkali metals in Group 1 of the periodic table which are reactive among metals.
The chandlers are moving across the country. Mr.Chandler leaves 4.5 hours before Mrs.Chandler. If he averages 35 mph and she averages 65 mph, how many hours will it take Mrs.Chandler to catch up to Mr.Chandler
it will take about 4.7 hours since u dont know what time she left so the time will be shown as x and if they are averagely going the same speed then it will take around the same time or.about 4.5 or 4.6 around this time she will catch up to him since he's cruising and she's in a sport race just some difference
Answer:5.25
Step-by-step explanation:
Rate×Time=Distance
Drive Rate Time Distance
Mr. Chandler's drive 35 4.5+x 35(4.5+x)
Mrs. Chandler's drive 65 x 65x
35(4.5+x)= 65x
157.5 + 35x= 65x
157.5 = 30x
5.25 = x
Use the point and the slope to graph each line. Write the equation of the line. The line passes through point (2,-2) and is parallel to a line that has slope -1.
Answer:
y= -x
Step-by-step explanation:
slope- intercept form
y= mx +c, where m is the slope and c is the y-intercept.
Given that the slope is -1, m= -1.
Substitute m= -1 into the equation:
y= -x +c
To find the value of c, substitute a pair of coordinates into the equation.
When x= 2, y= -2,
-2= -2 +c
c= -2 +2
c= 0
Thus, the equation of the line is y= -x.
Please Help with number 28
Answer:
Step-by-step explanation:
[tex]\dfrac{\dfrac{2}{7}*9}{\dfrac{2}{7}}= 9[/tex]
2/7 in the numerator and denominator will get cancelled
Determine whether the equation 4x + y =6. If so graph the function
Answer:
4x + y = 6 is a function. The graph will cross the y-axis at point (0, 6) and crosses the x-axis at point (1.5, 0)
Step-by-step explanation:
Solve for y: 4x + y = 6
y = -4x + 6
Slope is -4 and the y-intersect is 6.
Now solve for x when y = 0. This action will give you the x-intersect.
4x + y = 6
4x + 0 = 6
4x = 6
x = 6/4 or 1.5
The graph will cross the y-axis at point (0, 6) and crosses the x-axis at point (1.5, 0)
There is a proportional relationship between a volume measured in cups and the
same volume measured in tablespoons. 3 cups is equivalent to 48 tablespoons, as
shown in the graph.
A. Plot and label at least two more points that represent the relationship
B. Use a straightedge to draw a line that represents this proportional relationship.
C. For which value y is (1, y) on the line you just drew:
D. What is the constant of proportionality for this relationship?
E. Write an equation representing this relationship. Use c for cups and t for tablespoons.
please help me with this I’m in 7th grade
Answer:
32
Step-by-step explanation:
I think the answer is b use a straight edge to draw a line that represents this proportional relationship
If varies directly as y and y = 15 when = 25. If = 155 then y is
Answer:
y = 93
Step-by-step explanation:
I assume the other variable is x.
"If x varies directly as y and y = 15 when x = 25. If x = 155 then y is"
Direct variation:
x = ky
25 = k * 15
k = 25/15
k = 5/3
The direct variation equation is
x = (5/3)y
155 = (5/3)y
y = 155 * 3/5
y = 93
may y’all help me<33……..
Answer:
68
Step-by-step explanation:
Hope this helps! Pls give brainliest!
Answer:68
Step-by-step explanation:
5+9*7=68
Graph the line with slope 1/2 and y-intercept −4.
Answer:
Check out the image below.
Step-by-step explanation:
Write an equation of the line that passes through the given point and has the given slope.
(1,-5); slope -3/2
Answer:
y – y 1 = m ( x – x 1 ) m = your slope ( x 1 , y 1 ) = your point y – ( − 5 ) = − 3 2 ( x – 1 ) y + 5 = − 3 2 ( x – 1 ) Now we need to do a little algebra to get the equation in standard form: A x + B y = C , where A, B and C are relatively prime integers. y + 5 = − 3 2 x + 3 2 3 2 x + y = 3 2 − 5 now let's multiply through with 2 to get rid if the fractions: 2 ( 3 2 x + y = 3 2 − 5 ) 3 x + 2 y = 3 − 10 3 x + 2 y = 7
Step-by-step explanation:
the opposite number of 1/2
Answer:
0.5?
Step-by-step explanation:
hello there
im looking for help here. giving brainliest if im able to.
Find the volume of a box with the following measurements:
l=7cm
w=3cm
h=10 cm
Answer:
210cm cubed
Step-by-step explanation:
Width x length x height
3x7x10
Given: AD, What statements are true regarding the given statement and diagram? EB bisects LAEC IZCED is a right angle. ZCEA is a right angle. a mZCEA = 1 2 (mZCEB) C mZCEB = m_BEA B mZ DEB = 135° MZAEB = 35° A E
The option first, option second, option fourth, and option fifth are correct.
What is an angle?When two lines or rays converge at the same point, the measurement between them is called a "Angle."
We have:
AD
EB bisect angle AEC
From the figure:
Angle CED is a right-angle triangle
So,
Angle CEA is also a right-angle triangle
Angle CEB = Angle BEA = 90/2 = 45 degrees
Angle DEB = Angle CED + Angle CEB = 90 + 45 = 135 degrees
Thus, the option first, option second, option fourth, and option fifth are correct.
Learn more about the angle here:
brainly.com/question/7116550
#SPJ1
Help help please please
Answer: 3/20
Step-by-step explanation:
0.150 is equal to 150 thousandths. You can write this in its fractional form, which is:
150/1000
More simplification:
(150/50)/(1000/50)=3/20.
One end of a wire is attached to the top of a 24-foot pole; the other end of the wire is anchored to the ground
18 feet from the bottom of the pole. If the pole makes an angle of 90° with the ground, find the length of the
wire.
Answer:
30 feet
Step-by-step explanation:
We can use Pythagorean theorem for this question because the pole and the wire that is anchored to the ground forms an right triangle because the pole makes an angle of 90 degrees.
One side of the right triangle formed is equal to 24 feet, and because the wire that is anchored to the ground is 18 feet from the bottom of the pole, another side is 18 feet.
Pythagorean theorem states that [tex]a^{2} +b^{2} =c^{2}[/tex]. With a and b being the sides of the right triangle and c being the hypotenuse. In this problem, the length of the wire is equal to the hypotenuse of the triangle.
a=24 and b =18. 24 squared is equal to 576, and 18 squared is equal to 324. We add 576 and 324, which is 900. This means that [tex]c^{2}[/tex] =900. To find c, we find the square root of 900, which is 30. Therefore, the length of the wire is 30 feet.
Answer:
30 feet
Step-by-step explanation:
1. The 24-foot pole and the 18 feet from the bottom of the pole form a right angle, meaning that when you add the length of the wire, a right triangle forms.
2. "24-foot pole" is the height, and "18 feet from the bottom of the pole" is the base. The length of the wire is the hypotenuse.
3. To find the hypotenuse of a right triangle, we can use the Pythagorean theorem to solve it: [tex]a^2 + b^2 = c^2[/tex], where a = leg of triangle, b = leg of triangle, and c = hypotenuse (or in this case, the wire).
4. Now, let's apply the formula:
[tex]18^2 + 24^2 = c^2[/tex]Step 1: Simplify both sides of the equation.
[tex](18*18)+(24*24)=c^2[/tex] [tex]324 + 576 = c^2[/tex] [tex]900 = c^2[/tex]Step 2: Take square root of both sides.
[tex]\sqrt{900} =\sqrt{c^2}[/tex] [tex]30 = c[/tex]Step 4: Check if solution is correct.
[tex](18*18)+(24*24)=(30*30)[/tex] [tex]324 + 576 = 900[/tex] [tex]900 = 900[/tex]Therefore, the length of the wire is 30 feet.
Express 8mm as a percentage of 4mm
Find x. Round to the correct number of decimal places.
Step-by-step explanation:
Using Trigonometry,
Let the height be AD, angle containing 90° be B and the angle containing 65° be C, respectively.
cos 30° = AD/40
AD= 40√3/2 = 20√3.
<DAC = 25°.
cos 25° = AD/AC
0.90 = 20√3/AC
AC = 38.49. is the value of x.
please try to understand the marking accordingly.
hope this helps you.
What is the height of a triangle that has an area of 24 in.2 and a base with a length of 8 in.?
Answer:⬇️⬇️⬇️⬇️
Step-by-step explanation: Area of a triangle = ½base times height⇒ A = ½bh
Given that the area is 24 and the base is 8, we would have this equation
24 = ½(8)h
24 = 4h divide both sides by 4
6 = h So the height of the triangle is 6 feet
CHECK
A = ½bh
24 = ½(8)(6)
24 = 4(6)
24 = 24√
The label of a bag of trail mix says it has 180calories per 15ounces. What is the rate of calories per ounce?
Answer:
12calories per 1ounce
Step-by-step explanation:
Is y-1/x=11 linear on non linear
Answer:
It is linear you can even go to desmos graphing line.
Pls help. Pls pls pls
Answer:
idj
Step-by-step explanation:
hope this helps
Evaluate the following linear equation for the given values y= -3x+1 and x is -5, -2, -1 and 4.
Write root 3 x root 6 in the form b root 2 where b is an integer.
3 root 2
root 3 x root 6 = root 18
to write it in its simplest form, we have to reduce the number to a situation, where we have a product that includes a perfect square and and another number
let me break that down
let us use another example;
root 8
we think of the largest perfect square that is also a factor of 8
then, we conclude to our answer; 4
next, we think of the number that multiplies with 4 to give is 8 and that is 2
so, we bring the 4 outside by square rooting it and everything gives us
2 root 2
to open this, we just square the 2 outside and multiply it by the 2 inside to give us root 8
if we apply this example to our question,
root 18 = root 9 * 2
this is because 9 is the largest square and factor of 18 and 2 multiplies with 9 which gives us root 9 * 2
then, we square root 9 to give us 3 and we bring this 3 out to give us
3 root 2
hope this helps.
if you do not understand, just send me a message
thank you
If you had a 5 ft piece of wood. How many 1/2 ft pieces could you get from your 5 ft piece of wood?
Answer:
10 pieces
Step-by-step explanation:
1/2 times 10=5
Please help with geometry
Answer:
m∠2 = 68°, m∠3 = 112°, m∠4 = 68°
Step-by-step explanation:
m∠3 = m∠1 ( Vertically opposite angles )
m∠3 = 112°
m∠2 = 180 - m∠1
m∠2 = 180 - 112
m∠2 = 68°
m∠4
Solution 1:
m∠4 = m∠2 (Vertically opposite angles)
m∠4 = 68°
Solution 2:
m∠4 = 180 - m∠1
m∠4 = 180 - 112
m∠4 = 68°
Hope this helps
Which graph shows y = x2 + 3x – 4?
IN
vu
Help??? Thank youu!!!
Answer:
The time on the clock is 9:18
Answer:
The clock shows the time of 09:18.
The figure below shows parallel lines cut by a transversal. Which statement is true about angles 1 and 2?
A. Angles 1 and 2 are complementary because they are a pair of corresponding angles.
B. Angles 1 and 2 are congruent because they are a pair of corresponding angles.
C. Angles 1 and 2 are complementary because they are a pair of alternate interior angles.
D. Angles 1 and 2 are congruent because they are a pair of alternate interior angles.
Answer:
The answer is B. they are congruent because they are a pair of corresponding angles.
Answer:
B)
Step-by-step explanation:
Angles 1 and two are corresponding angles, because if you were to move the top line down, the two angles would be in the exact same spot.
What is the value of 55 x 2 ÷ 11 - 10
A) 0
B) 1
C) 9
D) 27.5
Answer: 0
Explanation: Divide 2 and 11, and you get 2/11 and multiply that with 55 you get 10 and 10 - 10 equals 0! ^^