Answer:
3 slices
Step-by-step explanation:
There is a pizza with ten slices. 1/5 of ten is 2 slices. 1/2 of ten is 5 slices. 2 +5 = 7. 10 - 7 = 3 slices. Three slices have not been eaten.
The diameter of a circle measures 8 cm. What is the circumference of the circle?
Use 3.14 for it, and do not round your answer. Be sure to include the correct unit in your answer.
Answer:
16π or 50.266
Step-by-step explanation:
Circumference formula is just 2πr ,and the radius is 8, so just sub into the formula
Answer: 25.12 cm
Step-by-step explanation:
The formula for the circumference of a circle is [tex]2\pi r[/tex], when r = the radius.
Diameter = 2 x radius = 8 cm. Therefore, the radius = 4 cm.
Plug r = 4 cm in to the circumference formula: [tex]2\pi (4)[/tex] = 8 x 3.14 = 25.12 cm.
'Ello there! 20 points and brainliest!!! FOR JOHAN!!
List 3 expressions that equal the number 12
List 2 expressions that equal the number 2
Wow this question is literally the hardest thing I have ever seen PLEASE HELP MEEE!!!
Answer:
for twelve: 4 x 3, 9 + 3, 24 / 2.
for two: 1 x 2, 1 + 1.
Step-by-step explanation:
4 x 3 = 12, 9 + 3 = 12, 24 / 2 = 12
1 x 2 = 2, 1 + 1 = 2.
which is a solution to the systen of equations. x+3y=18. x+2y=14 A) 6,4 B) 4,6 C) 6,-4 D) -4,6
Step-by-step explanation:
• Elimination (find y) :
x + 3y = 18
x + 2y = 14 _
y = 4
• Substitute y = 4 to one equation :
x + 3y = 18
x + 3(4) = 18
x + 12 = 18
x = 18 - 12
x = 6
• The set of equations :
{x, y} = {6, 4}
So, the solution to that system equation is 6, 4 (A)
Please give me the answer
Answer:
5.3
Step-by-step explanation:
pls help will mark as brainliest
Answer:
The measure of the hypotenuse is 25.
Step-by-step explanation:
To solve, we can use the Pythagorean theorem a² + b² = c² where,
a = 7
b = 24
(7)² + (24)² = 625
We have to take the square root of 625 to get our answer.
[tex]\sqrt{625} = 25[/tex]
Answer:
25
Step-by-step explanation:
This is a right triangle. This is because of the little square in the corner that indicates a right angle. Therefore, we can use the Pythagorean Theorem.
a^2+b^2=c^2
where a and b are the legs, and c is the hypotenuse.
We know that 7 and 24 are the legs, because they make up the right angle. We know c is the hypotenuse because it is opposite the right angle.
7^2+24^2=c^2
Evaluate the exponents on the left side.
49+576=c^2
Add 49 and 576
625=c^2
Since c is being squared, take the square root of both sides. This will cancel out the exponent, and leave c by itself.
√625= √c^2
√625=c
25=c
The measure of the hypotenuse is 25
In a football drill, Ron is standing 30 yards directly east of John, and Bill is standing 40 yards directly north of John. If the football is thrown from Ron to Bill and then from Bill to John, how many yards did the football travel?
Answer:
D, 90
Step-by-step explanation:
See image below.
To find the distance from Bill to Ron, we will use the Pythagorean Theorem, which is a^2+b^2=c^2.
(a and b being the legs of the triangle, they form the 90 degree angle. c=hypotenuse, or the side that is opposite from the 90 degree angle)
In this example, a=30 and b=40.
30^2+40^2=c^2
900+1600=c^2
2500=c^2
c=50.
Then, to find the yards thrown, we will add the distance from Ron to Bill and the distance from Bill to John. This can be written as 50+40, which equals 90 yards.
can someone help me please
One friend solves
7(x + 4) = 49 by dividing each side
by 7 and then subtracting 4 from
each side. Another friend solves it by
first distributing the 7 on the left side
of the equation, then subtracting 28
from each side, and finally dividing
each side by 7. Which friend uses the
correct method? Explain.
Answer:
the second friend
Step-by-step explanation:
Answer:
both methods are correct
Step-by-step explanation:
Given
7(x + 4) = 49 ( divide both sides by 7 )
x + 4 = 7 ( subtract 4 from both sides )
x = 3
---------------------------------------------------------
Given
7(x + 4) = 49 ← distribute parenthesis by 7
7x + 28 = 49 ( subtract 28 from both sides )
7x = 21 ( divide both sides by 7 )
x = 3
As shown both methods are equally valid
Need Help On This
simplify:
9a(-4a^3 b^5)(-2a^4 bc^6)
Answer:
72a^8b^6c^6
Step-by-step explanation:
I will give brainliest to the first person who answers.
Answer:
the answer is [tex]\sqrt{5\\}[/tex] , and - [tex]\sqrt{5\\}[/tex] which is C.
Step-by-step explanation:
well I got that answer by doing this
we have [tex]x^{2}[/tex]= 5
For [tex]x^{2}[/tex]= f (a) the solutions are x = [tex]\sqrt{f(a)\\}[/tex] , - [tex]\sqrt{f(a)\\}[/tex]
so in this case the solutions are [tex]\sqrt{5\\}[/tex], and - [tex]\sqrt{5\\}[/tex]
HOPE THIS HELPS :)
What is y=2(x+1)^2 in standard form
Answer:
[tex]y=2x^2+4x+2[/tex]
Step-by-step explanation:
[tex]y=2(x+1)^2[/tex]
[tex]y=2(x^2+2x+1)[/tex]
[tex]y=2x^2+4x+2[/tex]
Which expressions can never result in a negative real number when evaluated for any value of x? Select all that apply.
1) x^1/2
2)x^2/3
3)x^-3/5
4)x^-1/2
5)x^1/3
The expressions that can never result in a negative real number when evaluated for any value of x are x^1/2, x^2/3 and x^1/3
1) x^1/2
find the square root
[tex]= √x^1/2
[/tex]
[tex]= x^1[/tex]
= x
2) x^2/3
[tex]= 3√x^2/3[/tex]
= x²
3) x^-3/5
[tex]= 5√x^-3/5[/tex]
[tex]= x^-3[/tex]
[tex]= 1/x^3[/tex]
4) x^-1/2
[tex]= √x^-1/2[/tex]
,
[tex]= x ^-1[/tex]
[tex]= 1/x[/tex]
5) x^1/3
[tex]= 3√x^1/3[/tex]
[tex]= x^1[/tex]
= x
Therefore, the expressions that can never result in a negative real number when evaluated for any value of x are x^1/2, x^2/3 and x^1/3
Read more:
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PLEASE HELP ME I BEG
Answer:
x = 3
Step-by-step explanation:
Applying Pythagoras' identity to the right triangle.
The square on the hypotenuse is equal to the sum of the squares on the other 2 sides, that is
x² + x² = ([tex]\sqrt{18}[/tex] )², that is
2x² = 18 ( divide both sides by 2 )
x² = 9 ( take the square root of both sides )
x = [tex]\sqrt{9}[/tex] = 3
You are 64 inches tall and your shadow is 72 inches long. A tree casts a shadow of 144 inches. How tall is the tree? 100 in. 128 in. 136 in. 150 in.
Answer:
I think it's 136 inches...
Step-by-step explanation:
Answer:
128 in.
Step-by-step explanation:
right on test
PLS ANSWER ASAP 12 POINTS
Answer:
2/9
Step-by-step explanation:
its in the range to be 2/9
What is the average rate of change of g over the interval -8≤t≤2? Give an exact number.
Per the plot, looks like g(-8) = 1 and g(2) = -4. Then the average rate of change of g over [-8, 2] is
(g(2) - g(-8)) / (2 - (-8)) = (-3 - 1)/10 = -2/5
Enter the quotient.
6532 ÷ 23 =
Answer:
284
Step-by-step explanation:
10 over 13 as a decimal rounded to the nearest tenth
Answer:
0.7
Step-by-step explanation:
If you divide 10 by 13 you get 0.76923 which rounded to the nearest tenth is 0.7
Hope this helped!
Answer:
0.8
Step-by-step explanation:
To find the decimal form of [tex]\frac{10}{13}[/tex] you'll need to divide 10 by 13.
10 ÷ 13 = 0.76923076923
The tenths decimal place is one to the right of the decimal: 0.1
Because the number after the tenths place is greater than or equal to 5, we will round the 0.7 up to a 0.8
Identify the points corresponding to P and Q.
Answer:
the first one( even though it has an error : P is (-2,1) ) and because the Q is correct there too.
Use the values log 48 congruant to 1.68 and log 3 congruant to 0.48 to find the approximate value of log3 48.
Answer:log(48) = 1.68124
Step-by-step explanation:
After checking for the values of log 48 and log 3, then the approximate value will be 1.08.
What is an arithmetic operation?The four basic mathematical operations are the addition, subtraction, multiplication, and division of two or even more integers.
Among them is the examination of integers, particularly the order of actions, which is crucial for all other mathematical topics, including algebra, data organization, and geometry.
As per the given information in the question,
log(48) = 1.68
log(3) = 0.48
Then, the approximate value of log 3 and log 48 will be: 1.08
To know more about arithmetic operations:
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Doug believes that the function y=6 is linear, while Olga believes that it is not linear. Who is right, and why?
A
Doug is right, because the function cannot be written in the form y = mx + b.
B
Doug is right, because the function can be written in the form y = mx + b, with m = 0.
С
Olga is right, because the function cannot be written in the form y = mx + b
D
Olga is right, because the function can be written in the form y = mx + b. with m = 0
Answer:
A
Step-by-step explanation:
A linear equation is an equation of a straight line, which means that the degree of a linear equation must be 0 or 1 for each of its variables. In this case, the degree of variable y is 1 .
Here is an inequality: -2x>10.
1. List some values for x that would make this inequality true
2. How are the solutions to the inequality -2x≥10 different from the solutions to -x>10?
3. Explain your reasoning
Answer:
1)Any negative number above -5
2)it wouldn’t make sense since it’s a negative number unless you replace the dividend
Step-by-step explanation:
PLZ HELP I NEED IT ASAP!
Answer:
4
Step-by-step explanation:
Since it is going up four and over one you would just simplify 4/1 to just being 4.
Jack works at a local warehouse unloading boxes of material from trucks and then stacking them for distribution from the warehouse. Each box he unloads weighs 65 pounds. Each stack of boxes cannot exceed a total of 800 pounds. How many boxes can be in a stack?
Answer:
12 boxes
Step-by-step explanation:
800/65=12.307, since this is not a whole number, and the limit cannot exceed 800 pounds in a stack, you must round down to 12
2. Making sure your calculator is in DEGREE MODE, evaluate each of the following an
verify that they either match or are close to the ratios you found in #1.
(a) sin( 67 ) =
(b) cos(67 ) =
(c) tan (67") =
Answer:
a. 0.921
b. 0.391
c. 2.356
plz help!!! Drag the tiles to the correct boxes to complete the pairs.
Match each point of intersection with the system of equations whose solution is at that point. (look at image)
Answer:
Step-by-step explanation:
Each point of intersection with the system of equations was matched.
what is a linear equation?Any equation in the form [tex]ax+by+c=0[/tex] is called a linear equation where a,b,c∈R.
In the given diagram, to find the intersection of two lines, solve the equations of two lines.
1)[tex]\left \{ {{y=-2x-3} \atop {y=2x-1}} \right.[/tex]
The solution of the given system of equations comes to be x=-1/2 and y=-2.
So they will intersect at (-1/2, -2) i.e. same as the graph.
2)[tex]\left \{ {{y=x+4} \atop {y=-x+2}} \right.[/tex]
The solution of the given system of equations comes to be x=-1 and y=3.
So they will intersect at (-1,3)
Similarly, the other two systems of equations will intersect at (-7/3,5/3) and (-1,1) respectively.
Hence, each point of intersection with the system of equations was matched.
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convert the mixed number to an improper fraction. enter your answer below using the slash mark ( / ) as the fraction bar.
4/frac{1}{8}
What is the factored form of x2 - 4x – 5?
^
(x + 5)(x - 1)
(x + 5)(x + 1)
(x - 5)(x - 1)
(x - 5)(x + 1)
Answer:
(x - 5)(x + 1)
Step-by-step explanation:
[tex] {x}^{2} - 4x - 5 \\ = {x}^{2} - 5x + x - 5 \\ = x(x - 5) + 1(x - 5) \\ = (x - 5)(x + 1) \\ [/tex]
Answer:
I think that the answer is D
Aaron needs 24 inches of copper wire for an experiment. The wire is sold by centimeter. How many centimeters of wire does Aaron need? (1 inch= 2.54 cm)
Answer:
60.96 cm
Step-by-step explanation:
you do proportions
1 in = 2.54
24in= ?
you multiply 2.54 by 24
Answer:Hence, Aaron needs 60.96 centimeters of wire.
Step-by-step explanation: Multiply both sides by 2.54.
Multiply both sides by x.
x = 60.96
Consider the equation -2x+3y=6.
Write the equation in slope-intercept form.
Identify the y-intercept.
Identify the slope.
Answer:
y=2/3x+2
Step-by-step explanation:
Doing a test and timed so please help1
Answer:
20
Step-by-step explanation:
The hypotenuse is always the largest number and side length in a right triangle. We know the answer is 20 because it is the largest number.