Find the circumference of the circle. Use 3.14 for π. Round to the nearest tenth if necessary.
A.
34.8 cm
C.
32.1 cm
B.
21.7 cm
D.
28.3 cm
Answer: D
Step-by-step explanation:
Multiply 2 times 3.14 times the radius, which is half the diameter. So divide 9 in half to get 4.5 as the radius. 2 times 3.14 times 4.5 equals 28.29. Round up to the nearest tenth equaling 28.3.
Is this relationship linear, exponential, or neither ?
Exponential
Step-by-step explanation:
So let’s start off by looking at how much x is growing by each time
X is growing by 8 each time
Next look at how much y is growing by
-6 to -24 is a difference of 18
-24 to -96 is a difference of 72
And lastly -96 to -384 is a difference of 288
So we can now say that it is not linear because a linear equation grows by a constant number (like adding)
To determine if it is exponential see if it is growing by a constant multiplier
24 divided by 6 is 4
96 divided by 24 is 4
384 divided by 96 is 4
It is exponentially growing by 4
There are 6 houses on a small street. Each house has
a family with 4 children, 2 cats and a dog.
1. How many children are there living on this street?
2. How many pets are there living on this street?
Answer:
There are 24 children living on the street. There are 18 pets living on the street.
Step-by-step explanation:
The answer is 24 chilren because you have to multiply the amount of children and the amount of houses in the street. When you do that you get 24.
There are 18 pets living on the street because in total 3 pets are living in EACH house. 6×3=18.
In ∆ABC, ∠A is a right angle and m∠B = 45°. Find BC.
3 sides of the triangle ABC and the side A is a right angle 11ft
11 ft
11/2 ft
/22 ft
2/11ft
Answer:
22ft
Step-by-step explanation:
Of the students at Grant Middle School, 63% are girls. The school newspaper is rendomly selecting a student to be interviewed. Describe the complement of selecting a girl and find the probability of the complement. Write the answer as a fraction, decimal, and percent
Answer:
The complement as fraction = 37/100
As decimal = 0.37
As percentage = 37%
Step-by-step explanation:
Please kindly see the attached for more
Question 5 (5 points)
(08.03 LC)
Determine the factors of x2 – 8x – 12. (5 points)
(X-6)(x + 2)
(x + 3)(x – 4)
Prime
(x + 6)(x - 2)
Answer:
[tex](x-9.291)\cdot (x + 1.292)[/tex]
Step-by-step explanation:
The factors of the given polynomial ([tex]x^{2}-8\cdot x - 12[/tex]) are derived from the General Formula for Second-Order Polynomials:
[tex]x = \frac{8 \pm \sqrt{64 - 4\cdot (1)\cdot (-12)}}{2\cdot (1)}[/tex]
[tex]x_{1} \approx 9.291[/tex] and [tex]x_{2} \approx -1.292[/tex]
The factors of the polynomial are:
[tex](x-9.291)\cdot (x + 1.292)[/tex]
Answer:
The answer is prime.
Step-by-step explanation:
x2 – 8x – 12
We need two numbers which are factors of 12 such that their product is -12 and their sum is -8. The factors are 1, 2, 3, 4 and 6 but no two numbers satisfy the requirements of summing up to -8 and product of -12.
Therefore the equation is a prime as it has no factor
We can also check if the equation has a factor using the formula for general quadratic equation of ax² + bx + c = 0, the formula is;
(b² - 4ac)
If the answer is a perfect square only then we can factorize the equation.
In the given equation x² - 8x - 12
b = -8 and c = -12
b²- 4ac = (-8)² - 4(1)(-12) = 64 + 48 = 112
Since 112 is not a perfect square number, we can say there is no factors for the given equation.
please help this is the last question then im done please i will gib branliyest please
If chord AB is congruent to chord BC, what is the measure of BOC?
O A. 86°
OB. 43
O C. 1330
O D. 470
Answer:
B
Step-by-step explanation:
The central angles determined by the congruent chords are equal in measure, thus
∠ BOC = ∠ BOA = 43° → B
The measure of BOC is 43°.
What is congruent?
In geometry, two figures or gadgets are congruent if they have identical shapes and sizes, or if one has an equal shape and size as the replicated picture of the alternative.
What is an example of congruent?The word 'congruent' method 'precisely same' in phrases of shape and length. Even if we turn, turn, or rotate the shapes, they stay identical. for example, draw two circles of the equal radius, then reduce them out and region them on one another.
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You are building a frame for a window. The window will be installed in the opening shown in the diagram. Determine whether the opening is a rectangle. Then give the length of the diagonals.
Part A
A.The opening is not a rectangle.
B.The opening is a rectangle.
Part B
AC= __in
BD= __in
The opening is a rectangle. The length of diagonal AC can be found using the Pythagorean theorem using the lengths of AB and BC. The length of diagonal BD can be found using the Pythagorean theorem using the lengths of BC and CD.
Explanation:To determine if the opening is a rectangle, we need to compare the lengths of the opposite sides. If the lengths are equal, then it is a rectangle. In the diagram, we can see that AB and CD are equal, as well as AD and BC. Therefore, the opening is a rectangle.
To find the length of the diagonals, we can use the Pythagorean theorem. The diagonal AC is the hypotenuse of triangle ABC, and the diagonal BD is the hypotenuse of triangle BCD. We can calculate the lengths as follows:
AC = √(AB2 + BC2)
BD = √(BC2 + CD2)
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The answer is 7 but does anyone know how to show the work ?
Answer:
uhh sorry man no can do
Step-by-step explanation:
Answer:
x = 7
Step-by-step explanation:
An inscribed angle represents half of its intercepting arc. So what I did was add [tex]19x + 13[/tex] and [tex]90[/tex] which comes to [tex]19x + 103[/tex]
Angle Q would be half of [tex]19x + 103[/tex].
[tex]Q = \frac{19x +103}{2}[/tex]
The opposite of Q is [tex]7x + 13[/tex].
I will call this angle "y" just to explain.
y + Q = 180
This means we just have to plug everything in.
[tex]7x + 13 +\frac{19x + 103}{2} = 180[/tex]
Solve for x.
[tex]7x +\frac{19x + 103}{2} = 167[/tex]
[tex]2(7x +\frac{19x + 103}{2}) = (167)2[/tex]
[tex]14x +19x +103 = 334[/tex]
[tex]33x = 231[/tex]
[tex]x = 7[/tex]
I haven't done geometry is forever so I really hope this makes sense and it helped you! :)
15 is 6% of what number?
Answer:
250
Step-by-step explanation:
If 15 is 6% multiplying it by 16.66666666666667 will make it 100%
15 x 16.66666666666667 = 250
Another way to do this is divide by 6 and multiply by 100
where is the maximum value for this quadratic function?
A) (1, 0)
B) (0, 3)
C) (–1, 4)
D) (–3, 0)
Answer:
The answer is C) (-1,4) ;)
Step-by-step explanation:
Can anyone help me with this please?
Answer:
2.5 right?
Step-by-step explanation:
what is the length of AB????
can some please help it’s due in 10 mins
The slope of a line that is perpendicular to a line whose slope is 3/8 is
О -8/3
o 3/8
оо
Answer:
-8/3
Step-by-step explanation:
We know that lines that are perpendicular have slopes that multiply to -1
m1 * m2 = -1
We know one slope is 3/8 and are looking for the perpendicular slope m2
3/8 * m2 = -1
Multiply each side by 8/3 to find m2
3/8*8/3 *m2 = -1*8/3
m2 = -8/3
Write the formula for absolute value function if its graph has the vertex at point ( 1/3 ,−3) and passes through the point (1,1).
Answer:
y=|6x-2|-3
Step-by-step explanation:
I can see y=|x-1/3|-3 is a tempting answer, it does have its vertex at (1/3,-3) but it doesn't go through (1,1). This graph needs to be steeper, so we need to multiply x and the -1/3 coefficient next to it.
We multiply x and -1/3 each by 6, and boom! The graph goes through (1,1) and the vertex is still maintained at (1/3,-3) The -3 outside of the function doesn't change because the vertex's y-coordinate is -3, so it must stay the same.
The formula for the absolute value function with the vertex at ([tex]\frac{1}{3}[/tex], -3) and passing through (1, 1) is f(x) = 6|x - [tex]\frac{1}{3}[/tex]| - 3.
To write the formula for an absolute value function with a given vertex and point, we can use the standard form of an absolute value function, which is f(x) = a|x - h| + k, where (h, k) is the vertex of the function. In your question, the vertex is at the point ([tex]\frac{1}{3}[/tex], -3) and the function passes through the point (1, 1).
We can start by substituting the vertex into the formula, which gives us f(x) = a|x - [tex]\frac{1}{3}[/tex]| - 3. To find the value of 'a', we use the fact that the function also passes through the point (1, 1). Substituting x = 1 into the formula gives us 1 = a|1 - [tex]\frac{1}{3}[/tex]| - 3 → 1 = a([tex]\frac{2}{3}[/tex]) - 3 → a = 6. So, the function formula is f(x) = 6|x - [tex]\frac{1}{3}[/tex]| - 3.
The cube root shown has been written as a product where one of the factors is a perfect cube. RootIndex 3 StartRoot 162 EndRoot = RootIndex 3 StartRoot 27 EndRoot times RootIndex 3 StartRoot 6 EndRoot The simplest form of RootIndex 3 StartRoot 162 EndRoot is a RootIndex 3 StartRoot b EndRoot, where a = b = .
Answer:
a=3 b=6
Step-by-step explanation:
The cube root of 162 has been factored into the cube root of 27 and the cube root of 6. The simplest form is thus 3 times the cube root of 6, so a = 3 and b = 6.
Explanation:The student is working on finding the cube root of 162 and has already correctly factored this into the cube root of 27 times the cube root of 6. To simplify this, we recognize that 27 is a perfect cube (3³), so the cube root of 27 is 3. Therefore, the simplest form of ∛162 can be written as:
∛162 = ∛27 × ∛6
This simplifies to:
3 × ∛6
Where the ∛ symbol represents the cube root. As such, in the form ∛a∛b, where 'a' is the cube root of a perfect cube and 'b' is the remaining factor, we have a = 3 and b = 6 for this equation.
162 was factored into a product of 27 (a perfect cube) and 6, which cannot be further simplified in terms of cube roots.
In the diagram of circle A, what is the measure of _XYZ?
35 70 75 140
Answer:
First Option is correct.
Step-by-step explanation:
Since we have given that
Measure of arc WZ = 175°
Measure of ∠XAZ = 105°
We need to find the measure of ∠XYZ.
As we know the angle subtended at the center is the average of the measure of arc intercepted by it angle and its vertical angles.
Hence, the value of ∠XYZ is 35°.
Hence, First Option is correct.
Answer:
35°
Step-by-step explanation:
8. Justin sells brownies for $2 each and
cupcakes for $3 each. Justin sells a total of
100 brownies and cupcakes for $240. Write
and solve a system of linear equations to find
the number of brownies and the number of
cupcakes Justin sold.
Answer:
2x + 3y = 240
x + y = 100
Step-by-step explanation:
hope this helps
April and May both took out loans to purchase a $25,000 car. April borrowed
$25,000 at 4% simple interest for 5 years. May borrowed $25,000 at 3.75% simple
interest for 6 years. What is the difference in the amount of interest owed?
Answer:
$625
Step-by-step explanation:
-This is a simple interest problem of the form:
[tex]I=Prt[/tex]
where:
[tex]I[/tex] is the total interest earned in time t[tex]P[/tex] is the principal amount[tex]r[/tex] is the simple rate of interest#The respective interests can then be calculated as follows:
[tex]I_{April}=Prt\\\\=25000\times \frac{4}{100}\times 5\\\\=5000\\\\I_{May}=Prt\\\\=25000\times \frac{3.75}{100}\times 6\\\\=5625\\\\\\\bigtriangleup I=I_{May}-I_{April}\\\\=5625-5000\\\\=\$625[/tex]
Hence, the difference in the amount of interest is $625
The isosceles triangle has a base that measures 14 units.
The value of y, the length of each leg, must be
equal to 7.
between 7 and 14.
greater than 7
between 14 and 28.
Answer:
Between 7 and 14
Step-by-step explanation:
please solve the highlighted question
Answer:
1, 3, 4, 2
Step-by-step explanation:
1 = 2.78
2 =3.78
3 = 2.8
4 =3.42
Solve the equation for y: -3y - 2 = 10
Ms. Wilson studied her biology students' homework and test scores. She found that students who completed more homework did not
to earn higher or lower scores on the test. What should she conclude?
A. There is no correlation
B. There is correlation, and probably also causation
C. There us a correlation, but may or may not be causation
Answer:
The Answer is the Number 2,
I mean Point #2!
I Hope this WORKS! 100%
Ayana and Tabitha recorded the amount of time spent on homework on ten school days. Graphs of their data are shown
yana's Time Spent on Homework
Tabitha's Time Spent on Homework
Which best explains who spends more time on homework?
Ayana, because she has a higher maximum time spent
Ayana, because she has more variability in her time spent
Tabitha, because she has a higher median time spent
Tabitha becauca che hae more
in her timo enant
plz help now!!!!!!
Answer:
c
Step-by-step explanation:
trust memememememme its right i know the pain of e d g e. its sad
Use the diagram to find the measures of all the angles, given that m∠2=159∘.
Answer:
m∠1=21°, m∠2=159°, m∠3=21°, m∠4=159°
Step-by-step explanation:
All of the angles added up = 360°
We know that angles 2 and 4 are the same, due to angle rules.
If all of the angles, added up, equal 360, and angles 2 and 4 are equal, we have an equation. Note: m∠2=159°
159+159+x+x=360 *x represents the measure of both angles 1 AND 3, since they are identical*318+x+x=360318+2x=360subtract 318 from BOTH sides2x=42divide BOTH sides by 2x=21m∠x represents the measure for angle 1, along with the measure of angle 3.HOPE THIS HELPED! Brainliest??
Given that m∠2=159∘, any vertical angle to it will also measure 159∘. Use the angle sum property of triangles to calculate any other angle in a triangle.
Explanation:To find the measure of all the angles in the diagram, you'll have to use your understanding of angle relationships. Since you've been provided that m∠2=159∘, you can use this to calculate the measures of the rest. When dealing with a pair of vertical angles, remember that they are equal. Therefore, if m∠2=159∘, then its vertical angle will also measure 159∘. Also, using the angle sum property of triangles, which states that the sum of all interior angles of a triangle sum to 180∘, you can calculate the missing angles if the diagram indicates a triangle.
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Which number below best represents a positive charge of 1,350?
A. -1,250
B. 1,350
C. -1,350
D. 1,250
Final answer:
The number that best represents a positive charge of 1,350 is B. 1,350. Positive charges are indicated by numbers without a negative sign and the magnitude of charge is always represented as a positive value.
Explanation:
The number that best represents a positive charge of 1,350 is B. 1,350. Positive charges are indicated by numbers without a negative sign. As the question specifies a positive charge, the correct choice is the one without a minus in front of the number, therefore, option B is correct. This choice directly corresponds with the charge being positive, as indicated in the options provided.
It is important to note that the magnitude of charge is independent of its type, meaning that the numerical value of a charge represents its magnitude and is always positive, irrespective of whether the charge itself is positive or negative. An example in physics would be the charge of an electron which is -1.602 × 10-19 C, whereas a proton has a charge of +1.602 × 10-19 C, both having the same magnitude of charge but different signs.
What is the value of the expression modeled by the decimal grids?
Answer:
The value of the expression modeled by the decimal grids is 4.13
Step-by-step explanation:
Question is incomplete (the decimal grids are missing; see attachment for complete question).
Few points to be noted when reading a decimal grid are.
1. The scale of the grid
2. The ratio of the shaded region to the whole region
3. A fully shaded grid represent 1.
The scale of the grids in this question is a 10 x 10 grid.
10 * 10 = 100
Meaning that there are 100 squares in a grid
Having said this, well proceed to getting the decimal value of each individual grids.
For grids before the addition sign (+)
The first grid is fully shaded; so, it'll be represented with 1
The second grid is also fully shaded; thus, it'll also be represented with 1
The third grid has some of its region shaded; 23 of the 100 squares are shaded.
So, the third grid = 23/100 = 0.23
The Summation of the grids before the addition is 1 + 1 + 0.23 = 2.23
We move to the grids after the addition sign.
The first grid is fully shaded; so, it'll be represented with 1.
The second grid has some of its region shaded; 90 of the 100 squares are shaded.
So, the second grid = 90/100 = 0.90
The Summation of the grids after the addition sign is 1 + 0.90 = 1.90
Now, we can properly represent the grids in decimal forms.
This will be represented as
2.23 + 1.90
And that's equal to
4.13
Hence, the value of the expression modeled by the decimal grids is 4.13
Jeff has $ 8 and he needs to pay his sister $ 3 . How much will he jeff have after paying his sister ?
Answer:
5
Step-by-step explanation:
if he has 8 and gives 3 to his sister he will be left with 5 later
The diameter of a circle is 24 centimeters. What is the circle's area?
Answer:
The diameter is 24 so the radius is 12 then we do pi*r^2 or pi*12^2
We can use our numbers and get pi*144 so the area of the circle is 144pi.
If they have given you what pi is
EX:( 22/7 or 3.14)
Just use that instead of pi and multiply 144 to that