Answer:
Step-by-step explanation:
number of neutrons is 192-76 = 116
number of electrons is 76
How many 1/8 are in 13/16?
9514 1404 393
Answer:
13/2 or 6 1/2
Step-by-step explanation:
We can write the question in the form of an equation:
13/16 = n×1/8
Multiplying by 8 gives ...
8×13/16 = n
13/2 = n = 6.5
The number of 1/8 in 13/16 is 6 1/2 or 13/2.
What is the value of this expression 3x[(7+8)x2+6]
Answer:
96 or 108
Step-by-step explanatio
Find the perimeter of the polygon above.
Answer:
perimeter=sum of all sides
=7x - 6 + 3x + 4 + x
=7x + 3x + x + 4 - 6
=11x - 2
Step-by-step explanation:
once again pls pls help thx so much to the ppl who take there time and help me with this ill mark you brainliest, send a thank you, and mark star5 :)
Answer:
1/3 for a.
2/3 for b.
[character limit pass]
Find the equation of the
line that passes through
(-2,8) and (4,-9)
Answer: y=-17/6x+7/3
Step-by-step explanation:
Assume the 72-gon is a regular polygon. The measure of one interior angle is how many
degrees, and the measure of one exterior angle is how many degrees?
9514 1404 393
Answer:
interior: 175°exterior: 5°Step-by-step explanation:
The sum of exterior angles is 360°, so the exterior angle can be easiest to find first.
exterior angle = 360°/72 = 5°
The interior angle is the supplement of this.
interior angle = 180° -5° = 175°
The measure of one interior angle is 175°; one exterior angle is 5°.
Simplify the following monomials
Answer:
4) b^10
5) 15x^11y^6
6) 8y^5x + 3x
Step-by-step explanation:
b^6 + b^4 = b^10 because this is multiplication. So you have to add the degrees
(3x^3y^5)(5x^8y^1) = 15x^11y^6. This is because
3 *5 = 15.
x^3 +x^8 = x^11
y^5 + y^1 = y^6.
You have to add the degrees since this is also multiplication.
(2y^2)(4xy^3) + 3x = 24y^5x^2. This is because
2 * 4 = 8
y^2 + y^3 = y^5
x + 0 = x
Therfore, it is (8y^5x) + 3x as the final answer.
The difference of a number and 12 is 34. Find the number
Answer:
46
Step-by-step explanation:
Set up the equation:
x-12=34
Undo subtraction by addition
x-12+12=34+12
-12+12 cancels and 34 plus 12 is 46
x=46
What is the value of 7643 +6437 +4376 +3764?
A computer software vendor wants to estimate the number of times a computer will crash with its new operating system over the course of a year. A system administrator installs the operating system on a random sample of 34 computers. At the end of a year, the sample mean number of crashes is 5.6, with a standard deviation of 2.2. Find the confidence interval at a 90% confidence level for the mean number of crashes a computer will have with the new operating system over the course of a year.
Answer:
(4.9793, 6.2207)
Step-by-step explanation:
Given the data:
Sample size, n = 34
Sample mean, m = 5.6
Standard deviation, s = 2.2
Confidence interval = 90%
Using the relation :
m ± Zcritical * s/√n
Zcritical at 90% confidence interval = 1.645
Confidence interval ;
5.6 ± (1.645 * 2.2/√34)
5.6 ± 0.6206533
Lower boundary = 5.6 - 0.6206533 = 4.9793
Upper boundary = 5.6 + 0.6206533 = 6.2207
You
Graph 3x + 4y = 12.
Answer:
The graph is the equation 3x + 4y = 12 is attached below.
Step-by-step explanation:
Given the equation
3x + 4y = 12
First,
We need to determine the y-intercept:
We know that the value of the y-intercept can be determined by setting x = 0 and determining the corresponding value of y.
substitute x = 0 in the equation 3x + 4y = 12
3x + 4y = 12
3(0) + 4y = 12
0 + 4y = 12
4y = 12
divide both sides by 4
4y/4 = 12/4
y = 3
Thus, the y-intercept is: (0, 3)
Now, check the attached graph below.
Determining the y-intercept of the equation from the graph
From the graph, it is clear
at x = 0, y = 3
Thus, the y-intercept is (0, 3)
Determining the x-intercept of the equation from the graph
From the graph, it is clear
at y = 0,
3x + 4(0) = 12
3x = 12
x = 4
Thus, the x-intercept is (4, 0)
The graph is the equation 3x + 4y = 12 is attached below.
A class has 45 students. The probability of choosing at random a student
whose age is 10 or less is 2/3. How many students in the class
are 11 or older?
Can you divide an odd number into two equal groups
Answer:
No you can not it would come out as a decimal form.
Step-by-step explanation:
3 divided by 2 is 1.5 or 1 1/2
This is not divided evenly between each other
This proves that (no) anything that is a odd number can not be divided equally
Hope that helps
Jose wants to prove that the base angles of an isosceles triangle are congruent. Help!
Answer:
Last option
Step-by-step explanation:
That is your best choice because that is the option that tells you the angles are congruent and not the sides. I could be wrong tho.
The hypothesis to proof that the base angles of the isosceles triangle are congruent will be AC≅AB
An isosceles triangle is a triangle that has at least 2 congruent sides. The congruent sides are the legs of the triangle while the remaining side is called the base. The angles on the base is called the base angles.
The base angles of an isosceles triangle are congruent. The base angles are
∠BCA and ∠CBA and they are congruent. The sides AC and AB are congruent. AC≅AB.
Therefore, the hypothesis to proof that the base angles of the isosceles triangle are congruent will be as follows:
AC≅ABread more: https://brainly.com/question/11802289?referrer=searchResults
PLEASE EEEEE !!!!!!!!!!!! I NEED IT
In ABC, m∠A measures twice m∠B. if exterior angle at C measures 126°, find m∠A
.
2: in abc the measure of the exterior angle at b 100° if m∠A is 4 times larger than m∠C find m∠C.
someone pleaseeeeeeeeeee
Answer:
1) ∠A=84°
2) ∠C=20°
Step-by-step explanation:
1)
First, find ∠C:
(I'm assuming the exterior angle of 126° makes a straight line with ∠C)
The angles on a straight line always add up to 180. Therefore:
∠C+126=180
∠C=180-126
∠C=54
Then find ∠B:
We also know that all the angles in a triangle add up to 180. Therefore:
∠A+∠B+∠C=180
∠A+∠B+54=180
∠A+∠B=126
(we know ∠A=2(∠B))
2(∠B)+∠B=126
3(∠B)=126
∠B=42
Now, find ∠A:
∠A=2(∠B)
∠A=2(42)
∠A=84°
2)
First, find ∠B:
(Again, I'm assuming the exterior angle of 100° makes a straight line with ∠B)
The angles on a straight line always add up to 180. Therefore:
∠B+100=180
∠B=180-100
∠B=80
Then find ∠A:
We also know that all the angles in a triangle add up to 180. Therefore:
∠A+∠B+∠C=180
∠A+80+∠C=180
∠A+∠C=100
(we know ∠A=4(∠C))
4(∠C)+∠C=100
5(∠C)=100
∠C=20°
Expression equivalent to 5(4x+5)
Answer:
20x+25
Step-by-step explanation:
We can use the distributive property to distribute the 5 out. This is equivalent of 5*4x + 5*5 which would give us 20x+25.
Answer:
(4x+5)=9x)
Step-by-step explanation:
++++++++(+±±±+++++++
In the equation 4u - 6 = 24, what is the next step in the equation solving sequence?
Identify and move the coefficient and variable.
Move all numbers without a variable.
Isolate the variable using inverse operations.
Combine like terms.
Answer:
Move all numbers without a variable
Step-by-step explanation:
you want to get the variable by itself so you'll add 6 to both sides of the = sign making it 4u = 30 then you'll divide both sides by 4 making u = 7.5
surface area of a cuboid 1cm by 10cm by 3cm
Answer:
2lw + 2lh+2hw
Step-by-step explanation:
Answer:
If Im right you had to multiple 1 by 10 and 3
Step-by-step explanation:
Your answer will be 30 but dont forget to add the centimeter at the end
30cm
Hope this helps (:
Choose the two rectangles that have an area of 18 square centimeters.
6 cm
9 cm
OA
D.
3 cm
2 cm
9 cm
7 cm
B
E
9 cm
2 cm
5 cm
C
4 cm
Answer:
Rectangle ARectangle DStep-by-step explanation:
To find the answer, calculate the area of the rectangles.
Area of rectangle = Length * Width
Rectangle A Rectangle B Rectangle C
= 6 * 3 = 9 * 9 = 5 * 4
= 18 cm² = 81 cm² = 20cm²
Rectangle D Rectangle E
= 9 * 2 = 7 * 2
= 18 cm² = 14 cm²
The two rectangles are therefore A and D.
if anyone can help me go on!!
the base is ?
the value of the expression is ?
Answer:
The base is 5
The exponent is 4
[tex]5\cdot 5\cdot 5\cdot 5=5^4[/tex]
And the value is 625
Step-by-step explanation:
Exponentials
If a number is multiplied by itself n times like shown below:
[tex]x\cdot x\cdot x\cdot ...x[/tex]
It can be written in exponential form:
[tex]x\cdot x\cdot x\cdot ...x=x^n[/tex]
Where x is the base and n is the exponent.
In the expression:
[tex]5\cdot 5\cdot 5\cdot 5[/tex]
The base is 5
The exponent is 4
Writing the expression using an exponent:
[tex]\mathbf{5\cdot 5\cdot 5\cdot 5=5^4}[/tex]
And the value is 625
Find the slope Show me
Answer:
the slope is
-3/2
I GIVEEEEE BRAINLILSTE
Answer:
Answer: 39
Step-by-step explanation:
Volume of a Pyramid
Given a pyramid of triangular base area Ab and height H.
The volume of the pyramid is calculated by the formula:
[tex]\displaystyle V=\frac{1}{3}A_b\cdot H[/tex]
The perfume bottle is in the shape of a triangular pyramid with a height of H=9 inches. The area of the base is Ab=13 (square) inches.
Calculating the volume by substituting the given values:
[tex]\displaystyle V=\frac{1}{3}13\cdot 9[/tex]
[tex]\displaystyle V=39 \ in^3[/tex]
Answer: 39
Natalie went to the store to buy some cherries. The price per pound of the cherries is $6.25 per pound and she has a coupon for $2.75 off the final amount. With the coupon, how much would Natalie have to pay to buy 5 pounds of cherries? Also, write an expression for the cost to buy pp pounds of cherries, assuming at least one pound is purchased.
Answer: 6.25(5) - 2.75 = X
Step-by-step explanation:
Each pond costs 6.25 and she buys 5 pounds so multiply 5.25 and 5. Then subtract 2.75 which is the coupon to get your answer.
The expression is 6.25x - 2.75 = P
P being the total cost
13 out of 25 people agreed to help at a charity event. What percentage is
this?
21 out of 40 children arrived on time. What percentage were late? *
Find the percentage
A French test is out of 48 marks.
Simone scores 30 marks.
What is Simone's score as a percentage?
Answer:
Hi! The correct answer is 3.25, 7.6 and 0.3!
Step-by-step explanation:
Two cuboid-shaped metal bars are the same size. They are 12.4 cm long, 5.6 cm wide and 2.5 cm thick.
One bar is iron with a density of 7.9 grams/cm3 and the other is copper with a density of 9.0 grams/cm3.
a Calculate the difference in their masses to the nearest gram.
Answer:
191 grams
Step-by-step explanation:
12.4×5.6×2.5=173.6
7.9×173.6=1371.44
9.0×173.6=1562.4
1562.4-1371.44=191
10 points :)
Square OABC is drawn on a centimetre grid.
O is (0,0) Ais (3,0) Bis (3, 3) C is (0, 3)
Write down how many invariant points there are on the perimeter of the square when
OABC is reflected in y = x
Answer:
No invariant point
Step-by-step explanation:
Yo!
When we translate a form, in this case a polygon We must observe the direction of the vector. Since our vector is:
1) Let's apply that translation to this polygon, a square. Check it below:
2) The invariant points are the points that didn't change after the transformation, simply put the points that haven't changed.
Examining the graph, we can see that no, there is not an invariant point, after the translation. There is no common point that belongs to OABC and O'A'B'C' simultaneously. All points moved.
I hope you understood !
What are the solutions to the absolute value inequality |x − 70| ≤ 3?
Remember, the inequality can be written as −3 ≤ x − 70 ≤ 3
or as x − 70 ≤ 3 and x − 70 ≥ −3.
Answer:
67 ≤ x ≤ 73
Step-by-step explanation:
The absolute value of a real number x is the non negative value of x. Therefore the absolute value of x (|x|) = x for x ≥ 0 and -x for x < 0.
An expression |x - a| = b signifies that x - a = b or -(x - a) = b
Given that |x − 70| ≤ 3, hence:
|x − 70| ≤ 3
x - 70 ≤ 3 or -(x - 70) ≤ 3
x ≤ 3 + 70 or x - 70 ≥ -3
x ≤ 73 or x ≥ -3 + 70
x ≤ 73 or x ≥ 67
67 ≤ x ≤ 73
Hence the solution of |x − 70| ≤ 3 is 67 ≤ x ≤ 73
What is 3x – 7y = 9 in slope-intercept form?
Hey there!
The answer to your question is y = -3/7x - 9/7
To answer this, we need to get y by itself on one side, so we need to solve for y:
3x - 7y = 9
-7y = 3x + 9
y = -3/7x - 9/7
Hope it helps and have an amazing day!
3. The Lions scored 11 runs in a baseball game. The Tigers scored 7 runs. Did the Tigers score 3 fewer runs than the Lions? Explain.
Answer:
no
Step-by-step explanation:
if you subtract 11-7 you get 4 not 3
Instructions: Find the measure of the missing angles in the kite.
Please help!
:)
Answer
1)90°. 2)51°. 3)39°.
Step-by-step explanation:
1) it is straight so it is 90°
2)51° because the kite is symmetrical so it should be the same as the other side
3)90+51=141
180-141=39° so it is 39°
Hope this helps :) good luck