Answer:
90% chance that it's not yellow
Step-by-step explanation:
Since there is 1 yellow that mean that 9/10 marbles are a different color
9/10 as a percentage is 90%
Hope this helps and have a blessed day!
are any two regular polygons similar. The area of the smaller figure is about 390 cm^2. choose the best estimate of the area of the larger figure
Answer:
The best estimate of the area of the larger figure is [tex]693\ cm^{2}[/tex]
Step-by-step explanation:
step 1
Find the scale factor
we know that
If two figures are similar, then the ratio of its corresponding sides is equal to the scale factor
Let
z----> the scale factor
x-----> the corresponding side of the larger figure
y-----> the corresponding side of the smaller figure
so
[tex]z=\frac{x}{y}[/tex]
we have
[tex]x=12\ cm[/tex]
[tex]y=9\ cm[/tex]
substitute
[tex]z=\frac{12}{9}=\frac{4}{3}[/tex] -----> the scale factor
step 2
Find the area of the larger figure
we know that
If two figures are similar, then the ratio of its areas is equal to the scale factor squared
Let
z----> the scale factor
x-----> the area of the larger figure
y-----> the area of the smaller figure
so
[tex]z^{2}=\frac{x}{y}[/tex]
we have
[tex]z=\frac{4}{3}[/tex]
[tex]y=390\ cm^{2}[/tex]
substitute and solve for x
[tex](\frac{4}{3})^{2}=\frac{x}{390}[/tex]
[tex](\frac{16}{9})=\frac{x}{390}[/tex]
[tex]x=390*16/9=693.33\ cm^{2}[/tex]
Solve the equation. x^2 − 6x − 7 = 0
A) x = 7
B) x = 1
C) x = 1 or x = −7
D) x = −1 or x = 7
x equals 7,-1 :)))))))))))
Answer:
D
Step-by-step explanation:
given x² - 6x - 7 = 0 ← in standard form
To factor the quadratic
Consider the factors of the constant term ( - 7 ) which sum to give the coefficient of the x- term ( - 6)
The factors are - 7 and + 1, since
- 7 × 1 = - 7 and - 7 + 1 = - 6, thus
(x - 7)(x + 1) = 0 ← in factored form
Equate each factor to zero and solve for x
x - 7 = 0 ⇒ x = 7
x + 1 = 0 ⇒ x = - 1
The solution to the equation is D
the area of a parallelogram is 36x^6y^5. if the base of the parallelogram is 3xy^2,what is the height of the parallelogram asap
Answer:
h = 12x^5y^3
Step-by-step explanation:
The area of a parallelogram is found using A = b*h. Substitute the values given and solve for h.
A = b*h
36x^6 y^5 = 3xy^2 * h
36x^6 y^5 ÷ 3xy^2 = h
12x^5y^3 = h
Help please! 8th grade math! ASAP
17. 1lb is the better deal
18. about $17
19. 1.5lbs I think
20. 7000lbs
using the area model 8,708÷28
Answer:
311
Step-by-step explanation:
the poduct of 10 and a number is 3 less than the number
Answer:
Step-by-step explanation:
10 x = x - 3 Subtract x from both sides
10x - x = - 3 Combine like terms on the left
9x = - 3 Divide both sides by 9
9x/9 = -3/9
x = - 1/3 or x = - 0.333333
Complete the equation 1 2/3mi = ? ft
A- 8,800
B- 9,600
C- 10,560
D- 13,200
Answer:
A. Hope this helps.
(12 × 6) × 10 Which of the following is equal to the expression listed above? A. (12 × 6) + 10 B. (12 × 6) × (6 × 10) C. 12 × (6 × 10) D. 10 × 12 + 10 × 6
algebraic expression for x subtracted from 15
Answer:
15-x
Step-by-step explanation:
x subtracted from 15 - key word is subtracted from
that means flip it when it is written so it is 15-x
♫ - - - - - - - - - - - - - - - ~Hello There!~ - - - - - - - - - - - - - - - ♫
➷ The algebraic expression for x subtracted from 15 is:
15-x
This is because it says x subtracted from 15, meaning x is taken out of 15.
✽
➶ Hope This Helps You!
➶ Good Luck (:
➶ Have A Great Day ^-^
TROLLER
(06.04 MC)
What is the approximate equation of this line of best fit in slope-intercept form?
Answer:
The equation of the line of best fit is y = (-9/7)x + 13.
Step-by-step explanation:
The y-intercept of this straight line is (0, 13); we could also say that b = 13.
Two points on the graph are (0, 13) and (7, 4). As we go from x = 0 to x = 7, x increases by 7; at the same time, y decreases by 9.
From this observation, we can easily calculate the slope of this line:
m = rise / run = -9/7.
Then the equation of the line of best fit is y = (-9/7)x + 13.
The equation which represents the line that best fits the given data points is [tex]\[ y = -\frac{3}{2}x + 15 \][/tex]
Certainly! Let's go through the steps to find the equation of the line using the points (0, 15) and (10, 0).
1. Calculate the Slope [tex](\(m\))[/tex]:
The slope of a line [tex](\(m\))[/tex] is given by the formula:
[tex]\[ m = \frac{y_2 - y_1}{x_2 - x_1} \][/tex]
Using the points [tex]\((0, 15)\)[/tex] and [tex]\((10, 0)\)[/tex]:
[tex]\[ m = \frac{0 - 15}{10 - 0} \][/tex]
[tex]\[ m = \frac{-15}{10} \][/tex]
[tex]\[ m = -\frac{15}{10} \][/tex]
This can be simplified further by dividing the numerator and denominator by 5:
[tex]\[ m = -\frac{3}{2} \][/tex]
So, the slope[tex](\(m\))[/tex] is [tex]\(-\frac{3}{2}\).[/tex]
2. Find the Y-Intercept [tex](\(b\))[/tex]:
The y-intercept [tex](\(b\))[/tex] is the y-value when (x = 0). We are given the point [tex]\((0, 15)\),[/tex] so the y-intercept is 15.
3. Write the Equation of the Line:
The equation of a line is in the form (y = mx + b), where (m) is the slope and (b) is the y-intercept.
Now we substitute the slope [tex]\(-\frac{3}{2}\)[/tex] for (m) and the y-intercept 15 for (b) in the equation (y = mx + b):
[tex]\[ y = -\frac{3}{2}x + 15 \][/tex]
So, the equation of the line of best fit in slope-intercept form using the points [tex]\((0, 15)\)[/tex] and [tex]\((10, 0)\)[/tex] is:
[tex]\[ y = -\frac{3}{2}x + 15 \][/tex]
This equation represents the line that best fits the given data points.
Question
(06.04 MC) Dennis drew the line of best fit on the scatter plot shown below: A graph is shown with scale along x axis from 0 to 10 at increments of 1 and scale along y axis from 0 to 15 at increments of 1.The ordered pairs 0, 15 and 0.5, 14 and 1, 13 and 2, 12 and 3, 11 and 4, 9 and 5, 8 and 6, 6 and 7, 4.5 and 8, 2.3 and 9, 2 and 9.8, 0.5 are shown on the graph. A straight line joins the ordered pairs 0, 15 and 10, 0. What is the approximate equation of this line of best fit in slope-intercept form?
Is it independent or dependent?
Answer: I would say Independent
Step-by-step explanation:
PLEASE HELP ME! Thanks! Brett is making a fruit salad. The recipe calls for 1 1/2 cups of apple, 3/4 cup of
oranges, and 2/3 cup of grapes. How many cups of fruit salad will Brett’s recipe make?
Answer:
2 11/12
Step-by-step explanation:
first we need to convert 3/4 and 2/3 to even denominators. I used the number 12.
9/12 + 8/12 = 17/12
1/2 = 6/12
17/12 + 6/12 = 23/12
23/12 = 1 11/12
But we still have 1 from the 1 1/2 so add that
1 + 1 11/12 = 2 11/12
2 11/12
Hope this helps! Please mark as brainliest! Thanks!
Abigail has 16 apples she eats 2 apples per day.let y be the apples remaining as a function of the number of week,x
Answer:
8 days
Step-by-step explanation:
question
how much apples remaing as a function of the number of week ? so Abigail has 16 apples she eats 2 apples per day
1 st how long before all her apples Finnish
8 days how
count by twos until u reach 16
so x= 8
Final answer:
Abigail has 16 apples, and by eating 2 per day, she consumes 14 per week. The function for remaining apples after x weeks is y = 16 - 14x.
Explanation:
Abigail has 16 apples and eats 2 apples per day. To express the remaining apples, y, as a function of the number of weeks, x, we first need to determine how many apples are eaten in one week. Since there are 7 days in a week and Abigail eats 2 apples per day, she will eat 14 apples in one week.
The function describing the remaining apples after x weeks can be constructed as follows:
Start with the total number of apples Abigail has, which is 16.
Calculate the total apples consumed in x weeks: Apples eaten per week × Number of weeks (x), which is 14x.
Subtract the total apples consumed from the initial amount to get the remaining apples: y = 16 - 14x.
This equation represents the remaining apples as a function of the number of weeks.
solve y^2+7y+12=0 by completing the square.
Answer:
y = -3, -4
Step-by-step explanation:
Formula is (b/2)^2
So...
(y+7/2)^2 - 1/4 = 0
Add 1/4 to each side
(y+7/2)^2 = 1/4
Square root...
y+7/2 = +-1/2
Add
y = -3, -4
Assuming a 90% confidence level, the margin of error is approximately?
Answer:
0.3
Step-by-step explanation:
The margin of error is calculated as ...
(standard deviation)/√(sample size) × (z*-score)
where the z*-score is chosen based on the desired confidence level.
Here, you have ...
standard deviation = 2.7√(sample size) = √225 = 15z*-score for 90% confidence level = 1.645Putting these values in the above expression for margin of error gives ...
2.7/15·1.645 = 0.2961 ≈ 0.3
Answer:
0.3.
between 20.3 and 20.9
Step-by-step explanation:
Tan 64 degrees = height / 75 ft
Answer:
176.08952318965774 or 176.1
Step-by-step explanation:
Tan(64) = h/75
Tan(64) * 75
= 176.08952318965774
Can somebody help me answer these plz?
Answer:
At = 27.225 ft2
Step-by-step explanation:
Hello
The triangle area is:
At = (b*h)/2
At = (9.9*5.5)/2
At = 27.225 ft2
Best regards
The width of a rectangle is 8 inches and the length is 5 inches. What is the perimeter of the rectangle? 13 in. 26 in. 40 in. 21 in.
The perimeter is the total outside dimensions.
There are 2 sides that are 8 inches and 2 sides that are 5 inches.
Perimeter = 8+8+5+5 = 26 inches.
The required perimeter of the rectangle is 26 inches
What is a rectangle?A rectangle is a four sided quadrilateral, having all the internal angles equal to 90 degrees and opposite sides are equal and parallel.
What is perimeter?A perimeter of a figure is the sum of all the sides that bounds the figure.
How to find the perimeter of a rectangle?The perimeter of a rectangle can be found by the formula : 2(length + breadth)In the given problem,
Length of the rectangle is 5 inchesBreadth of the rectangle is 5 inches.∴ Perimeter of the rectangle = 2(8 + 5) inches
= 26 inches
Find out more details about "Rectangle" here: https://brainly.com/question/25292087
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Write an equation in point-slope form of the line through point (4, -4) with slope, m=4
Answer:
y + 4 = 4(x-4)
Step-by-step explanation:
Use the point slope form of a line to write the equation by substituting m = 4 and the point (4,-4).
[tex]y - y_1 = m(x-x_1)\\y --4=4(x-4)\\y + 4 = 4(x-4)[/tex]
Find the output, k, when the input, t, is -7
K = 10t - 19
K= ?
Answer:
k= -89
Step-by-step explanation:
k = 10t - 19 and t = -7
k=10 (-7) - 19
k= -70 - 19
k= -89
Answer:
-89
Step-by-step explanation:
Helping my son with math homework. How do you do these types of questions?
7a/10 = 77/60
You want to find out what a is.
7a / 10 = 77 / 60
Put your equation into the form Ax = B, where x = a
You can multiply both sides by 10 to get rid of the denominator.
7a / 10 * 10 = 77 / 60 * 10
7a = 77 / 6
Put your equation into the form x = B, where x = a
You can get a on it's own by dividing both sides by 7.
7a ÷ 7 = 77 / 6 ÷ 7
a = 77 / 6 ÷ 7
When dividing fractions:
Convert 7 to a fraction: [tex]\frac{7}{1}[/tex]
Flip the second fraction and multiply.
[tex]\frac{77}{6}[/tex]*[tex]\frac{1}{7}[/tex]=[tex]\frac{77}{42}[/tex]
a = 77 / 42
Simplify the fraction by dividing be a common factor - 7.
77 ÷ 7 = 11
42 ÷ 7 = 6
a = 11 / 6The value of a is 11/6
Step-by-step explanation:see the image
what is the lateral and surface area of a cone with a radius of 3 and height of 3
[tex]\bf \textit{lateral area of a cone}\\\\ LA=\pi r\sqrt{r^2+h^2}~~ \begin{cases} r=radius\\ h=height\\[-0.5em] \hrulefill\\ r=3\\ h=3 \end{cases}\implies LA=\pi (3)\sqrt{3^2+3^2} \\\\\\ LA=3\pi \sqrt{2(3^2)}\implies \boxed{LA=9\pi \sqrt{2}} \\\\[-0.35em] ~\dotfill[/tex]
[tex]\bf \textit{total surface area of a cone}\\\\ SA=\pi r\sqrt{r^2+h^2}+\pi r^2~~ \begin{cases} r=radius\\ h=height\\[-0.5em] \hrulefill\\ r=3\\ h=3 \end{cases}\implies SA=\boxed{9\pi \sqrt{2}}+\pi 3^2 \\\\\\ SA=9\pi \sqrt{2}+9\pi \implies SA\approx 68.26[/tex]
I need help solving for this
Answer: 12/15 = 0.8
Step-by-step explanation: There are 12 donuts and 15 teachers, just divide the amount of donuts by the amount of teachers. Hope that helps.
Find the distance between (-3,2) and (5, -6) using the distant formula.
[tex]\bf ~~~~~~~~~~~~\textit{distance between 2 points} \\\\ (\stackrel{x_1}{-3}~,~\stackrel{y_1}{2})\qquad (\stackrel{x_2}{5}~,~\stackrel{y_2}{-6})\qquad \qquad d = \sqrt{( x_2- x_1)^2 + ( y_2- y_1)^2} \\\\\\ d=\sqrt{[5-(-3)]^2+[-6-2]^2}\implies d=\sqrt{(5+3)^2+(-8)^2} \\\\\\ d=\sqrt{8^2+8^2}\implies d=\sqrt{2(8^2)}\implies d=8\sqrt{2}[/tex]
The distance between (-3, 2) and (5, -6) is [tex]\(8\sqrt{2}\)[/tex] units.
The distance between two points [tex]\((x_1, y_1)\)[/tex] and [tex]\((x_2, y_2)\)[/tex] in a two-dimensional Cartesian plane can be found using the distance formula:
[tex]\[ d = \sqrt{(x_2 - x_1)^2 + (y_2 - y_1)^2} \][/tex]
In this case, the points are (-3, 2) and (5, -6). Let's plug in these values into the formula:
[tex]\[ d = \sqrt{(5 - (-3))^2 + ((-6) - 2)^2} \][/tex]
Simplify the expression inside the square root:
[tex]\begin{aligned}& d=\sqrt{(5+3)^2+(-8)^2} \\& d=\sqrt{8^2+64} \\& d=\sqrt{64+64} \\& d=\sqrt{128} \\& d=8 \sqrt{2}\end{aligned}[/tex]
Explain the difference between multiplying by powers of 10 when the exponent is a positive number and when the exponent is a negative number
Answer:
a negative number makes fractions. a positive one makes bigger number
Step-by-step explanation:
Answer:
a negative number makes fractions. a positive one makes bigger number
Step-by-step explanation:
Write the following decimal number in its equivalent fraction form. Show all work for full credit. 0.255
the function h(x)=x^2+3 and g(c)=x^2-6. if g(x)=h(x)+k, what is the value of k?
i am so confused and i really need this answer soon someone please help
ANSWER
k=-9
EXPLANATION
The given function is
[tex]h(x) = {x}^{2} + 3[/tex]
and
[tex]g(x) = {x}^{2} - 6[/tex]
We want to rewrite g(x) in terms of f(x).
[tex] {x}^{2} - 6 = {x}^{2} + 3 + - 9[/tex]
This implies that,
[tex]g(x) = h(x) + - 9[/tex]
When we compare, we realize that
[tex]k = - 9[/tex]
Which point represents the center of the circle below ?
D.
If you look at the circle the point O is most is obviously in the center .
Answer:
D) Point O is the center.
Step-by-step explanation:
Given : Circle.
To find : Which point represents the center of the circle below.
Solution : We have given Circle.
The center of a circle is the point which is equidistant from all points on the circle.
Point O is equidistant from point R and S and A.
So, Center of the circle is O.
Therefore, D) Point O is the center.
Plz help Needed for graduation!!
Answer:
[tex]\large\boxed{25^\frac{5}{2}=3,125}[/tex]
Step-by-step explanation:
[tex]a^n\cdot a^m=a^{n+m}\\\\a^\frac{m}{n}=\sqrt[n]{a^m}\\\\======================\\\\25^\frac{5}{2}=25^{2\frac{1}{2}}=25^2\cdot25^\frac{1}{2}=625\sqrt[2]{25^1}=625\sqrt{25}=625(5)=3,125[/tex]
Camille collects stickers. Her sticker book holds 5 stickers in each row. When a page is full, it holds 65 stickers. How many rows of stickers are on a full page?
118,437 stickers. Trust me. I am REALLY good at math.