46 coins
D=30
p=10
Q=6
30+10+6=46
The total amount of coins is 46 coins
Let x represent the number of quarters, y represent the number of dimes and z represent the number of pennies.
Each quarter is worth $0.25, each dime is worth $0.1 and each penny is worth $0.01
Since Victor has three times fewer pennies than dimes, hence:
y = 3z
y - 3z = 0 (1)
Victor also has 4 fewer quarters than pennies, hence:
x = z - 4
x - z = -4 (2)
The total worth of the coin is $4.60, therefore:
0.25x + 0.1y + 0.01z = 4.60 (3)
Solving equations 1, 2 and 3 simultaneously gives:
x = 6, y = 30, z = 10
Total coins = 6 + 30 + 10 = 46
Therefore there are 6 quarters, 30 dimes and 10 pennies
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What does the correlation coefficient of -0.975 on a linear regression indicate?
A.
The slope is positive.
B.
One variable causes the other.
C.
The scatterplot shows no association of the variables.
D.
One variable has a strong relationship with the other.
A correlation coefficient of -0.975 on a linear regression indicates: D. One variable has a strong relationship with the other.
What is Correlation Coefficient?Correlation coefficient, r, is a measure of how strong the relationship between two variables is.
A correlation coefficient, r, that is closer to 1 or -1 signifies a strong relationship between two variables and vice versa.
Therefore, a correlation coefficient of -0.975 on a linear regression indicates: D. One variable has a strong relationship with the other.
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Someone pls help???????????????????????????????
Answer:
1/4
Step-by-step explanation:
quartered pie
Answer:
1/4
Step-by-step explanation:
there's four total triangles and only one is shaded purple. that is one of the four triangles.
A certain country has 878.24 million acres of forest. Every year, the country loses 9.98million acres of forest mainly due to deforestation for farming purposes. If this situation continues at this pace, how many years later will the country have only 399.2 million acres of forest left? (Use an equation to solve this problem.)
After_______ years, this country would have 399.2 million acres of forest left.
Answer:
48
Step-by-step explanation:
878.24 - 399. 2 = 479.04
479.04 / 9.98 = 48
Find the measure of each
exterior angle of regular polygonof a 9sides.
Answer:
40
Step-by-step explanation:
Any regular polygon has exterior angles = to 360 / number of sides.
so a 9-gon has 9 sides. The exterior angle = 360 / 9 = 40
Each exterior angle will be 40 degrees.
Try it with simpler n-gons. A triangle has 3 sides. The exterior angle is 360 / 3 = 120
A square has 4 sides. Each exterior angle is 360 / 4 = 90
What is f multiplied by -4 is -84
Answer:
f=21
Step-by-step explanation:
The equation you could write is -4f=-84. Solving this (dividing by -4 on both sides), your answer is that f=21.
Answer:
f = 21
Step-by-step explanation:
Hope this helps!
I tried to write an explanation but it wouldn't let me for some reason
pls help lots of points!
Answer: the answer is number 4
Step-by-step explanation:44444
\444444444444444444444
Answer: its the third one
Step-by-step explanation: im preety sure thats it
The solid below is dilated by a scale factor of . Find the surface area of the solid
created upon dilation. Answer in terms of t.
9
9
The surface area of the cylinder after dilation is: 36 units².
What is the surface Area of a Cylinder?Surface area of a cylinder = 2πrh + 2πr²
Find the surface area of the cylinder before dilation:
Surface area = 2πrh + 2πr² = 2(π)(9)(9) + 2(π)(9²)
Surface area = 324π units²
Surface area of the cylinder after dilation = 324π × (1/3)²
= 324π × 1/9
= 36 units²
Thus, the surface area of the cylinder after dilation is: 36 units².
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5.03, 5.00, 4.97, 4.94, __, 4.88 description
Norma has 9 pies to divide equally among 4 friends.how many pies will each friend receive?
Answer:
2.25 pies
Step-by-step explanation:
8/4 = 2
1/4 = 0.25
2+0.25=2.25
or
9/4 = 2.25
y=2x^2+2x-4 find the vertex and explain why
Answer:
[tex]( - 0.5 , - 4.5 )[/tex]
Step-by-step explanation:
Rewrite the equation in vertex form.
Complete the square for
[tex]2 {x}^{2} + 2x - 4[/tex]
Use the form
[tex]a {x}^{2} + bx + c[/tex]
to find the values of a, b, and c.
a = 2
b = 2
c = −4
Consider the vertex form of a parabola.
[tex]a(x + d) ^{2} + e[/tex]
Find the value of d using the formula
[tex]d = \frac{b}{2a} [/tex]
[tex]d = \frac{1}{2} [/tex]
Find the value of e using the formula
[tex]e = c - \frac{ {b}^{2} }{4a} [/tex]
[tex]e = - \frac{9}{2} [/tex]
Substitute the values of a, d, and e into the vertex form
[tex]2(x + \frac{1}{2} ) ^{2} - \frac{9}{2} [/tex]
Set y equal to the new right side.
[tex]y = {2(x + \frac{1}{2}) }^{2} - \frac{9}{2} [/tex]
Use the vertex form,
[tex]y = a(x - h) ^{2} + k[/tex]
to determine the values of a, h, and k.
a = 2
h = -1/2
k = -9/2
Find the vertex (h,k).
[tex]( - \frac{1}{2} , - \frac{9}{2} )[/tex]
what is 5 divided by (-3)?
but in long division
Answer:
-1.6666...... ( -1.6 recurring)
Step-by-step explanation:
1.666 < Quotient
------------------------------
3 ) 5.000
3 0
20
18
20
18
20
18
The 6 is recurring so the answer is 1,666..... * -1 = -1.666.....
From the following figures, find the values of 'a', 'b', 'c': 'd', 'e' and 'f':
Answer:
a=110 b=35 c= 10 d=55 e=14 f=10
Step-by-step explanation:
a = 11c , 180-70=110
b=2*35 =70
c= 11*10=110
2d=110 , d=55
e=5*14=70
7f=70 , f=10
The ratio of gold beads to black beads on a Mizzou necklace is 2:3. If the necklace has 28 gold beads, how many black beads does it have?
A three dimensional figure is cut by a plane parallel to its base resulting in the given shape
Answer:
a cross section
Step-by-step explanation:
duhh who did not know that
6. Which bag of potatoes is the better value:
Bag A, 6 kg for $4.14 or
Bag B, 2.5 kg for $1.80?
Answer:
[tex]Bag \: A, \: 6 \: kg \: for \: \$4.14 \: : is \: the \: better - value.[/tex]
Step-by-step explanation:
[tex]at \: the \: rate \: of \: 6 kg \: for \: \$4.14 \\ 2.5kg \: will \: cost \to \\ \frac{2.5 \times 4.14}{6} = 1.725 \\ hence \: \$1.725 \: is \: less \: than \: \$1.80 \\ therefore \: the \: first \: bag \: has \: \\ the \: better \: value.[/tex]
♨Rage♨
Your family has decided to put a rectangle patio in your backyard similar to the shape of your backyard. Your backyard has a length of 40 feet and a width of 20 ft the length of your patio is 12 feet. Find the perimeter of your new patio.
Answer:
The answer is 80, give me brainliest answer:)
100 POINTS!!!
Is the point (7,-3) on the line given by the equation
A. Yes
B. No
EXPLAIN
Answer:
A. Yes
Step-by-step explanation:
Hi there!
We are given the equation of the line [tex]y=\frac{1}{7}x-4[/tex], and we want to see if the point (7, -3) is on that line.
If the point is on the line, then it means that the point is a solution to the equation, meaning that if we plug its values into the equation, it will make a true statement.
This is because a line is made up of an infinite number of points, and they go on forever (there are no endpoints on a line), and so many, many points will belong to that line. The equation of the line simply shows how we can manipulate x and y to find points that belong to that line.
Anyway, in order to figure out if the point is a solution to the equation, we can substitute its values into the equation and see if the statement it makes is true or not
So substitute 7 as x and y as -3
[tex]-3=\frac{1}{7} (7)-4[/tex]
Multiply
-3=1-4
Simplify
-3=-3
This is an identity, which is true.
Therefore, the answer is A, which would be yes.
Hope this helps!
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Can someone pleaseeee help meeee
Answer:
1. put an open circle going left on 4
2.put a closed circle going right on 1
3.put a closed circle going left from -5
4.put an open circle going right at 10
Step-by-step explanation:
I am learning this right now in math class
Select all the quadrilaterals that have diagonals which cross at right angles. Please help..
Answer: C and D
Step-by-step explanation:
We need to find all the figures that are rhombuses. These figures are C and D.
The quadrilaterals C and D are those for which the diagonals cross at right angles.
What is a Quadrilateral?Quadrilateral are closed geometrical shapes having four sides, four angles and four vertices. Some of the common quadrilaterals include rectangles, square, parallelogram and the rhombus.
Interior angles of any type of quadrilateral always sums up to 360°.
Diagonals of a quadrilateral is the straight line formed by joining opposite vertices.
For every quadrilateral, there are two diagonals.
Figure A is a rectangle. The diagonals of a rectangle bisects each other, but is not perpendicular bisector. This means that diagonals of figure A does not cross at right angles.
Figure B is a parallelogram. Properties of diagonals are almost same in rectangles and quadrilateral. Diagonals bisect each other, but is not perpendicular. So diagonals of figure B also does not cross at right angles.
Figure C is rhombus. Diagonals of a rhombus perpendicularly bisect each other. Therefore diagonals of figure C cross at right angles.
Figure D is square. Again the diagonals of a square perpendicularly bisect each other. Therefore diagonals of figure D cross at right angles.
Hence diagonals of figures C and D cross at right angles.
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1x2x3x4x5x6x7x8x9x10
first to answer gets brainliest
Answer:
3628800
Step-by-step explanation:
The product of the numbers 1 x 2 x 3 x 4 x 5 x 6 x 7 x 8 x 9 x 10 is 3,628,800.
1 x 2 x 3 x 4 x 5 x 6 x 7 x 8 x 9 x 10
Step 1: Multiply 1 by 2:
1 x 2 = 2
Step 2: Multiply the result by 3:
2 x 3 = 6
Step 3: Multiply the result by 4:
6 x 4 = 24
Step 4: Multiply the result by 5:
24 x 5 = 120
Step 5: Multiply the result by 6:
120 x 6 = 720
Step 6: Multiply the result by 7:
720 x 7 = 5040
Step 7: Multiply the result by 8:
5040 x 8 = 40,320
Step 8: Multiply the result by 9:
40,320 x 9 = 362,880
Step 9: Multiply the result by 10:
362,880 x 10 = 3,628,800
Therefore, the product of the numbers 1 x 2 x 3 x 4 x 5 x 6 x 7 x 8 x 9 x 10 is 3,628,800.
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Evaluate the composite function, where g(x) = x^2 – 7x and h(x) = 7 - 4x^2.
(hºg)(0)
Answer:
7
Step-by-step explanation:
Find (h°g)(0) can also be expressed as h(g(0)). Begin by calculating g(0). To evaluate the function g at 0, replace each x with 0. g(0) = (0)²-7(0). (0)²-7(0) is equal to 0 so now 0 becomes the input for h. Evaluate h(0) by replacing each x with 0 in the h function. h(0) = 7 - 4 (0)² = 7 - 0 = 7.
Why, when packing a shopping bag, you will not put the detergent, baked chicken and frozen meats in the same bag?
Answer:
i think people do that so the products don't get destroyed. like, you wouldn't put bread and canned foods in the same bag. or maybe it's to organize them by category, etc. so when you get home to put up the groceries, they're all in the same place. like all the fridge items are in this bag. i don't know honestly. just my opinion.
Step-by-step explanation:
hope it helps?
If the probability of writing the correct answer to a question on an exam is 2/5, what are the odds against
writing the correct answer?
Please help me with this- 20 pts!
Answer:
the pic is hard to see...
Answer:
[tex]part \: a. \\ ans \: is \: x = log_{2}( \frac{5000}{300} )[/tex]
[tex]part \: b. \\ ans \: is \: x = log_{2}( \frac{50}{3} ) = 4.1 \: min[/tex]
3. A trail mix recipe asks for 4 cups of raisins for every 6 cups of peanuts. There is
proportional relationship
between the amount of raisins, r cups), and the amount of
peanuts, p (cups), in this recipe.
a. Write the equation for the relationship that has constant of proportionality
greater than 1. Graph the relationship.
b. Write the equation for the relationship that has constant of proportionality less than 1. Graph the relationship.
Answer:
r = 2/3p
A trail mix recipe asks for 4 cups of raisins for every 6 cups of peanuts.
There is proportional relationship between the amount of raisins, r (cups), and the amount of peanuts, p (cups), in this recipe.
The ratio of raisins and peanuts = 4:6 or 2:3
It would be same for every mixture.
If r cups of raisins and p cups of peanuts then their mixture ratio is r:p
Step-by-step explanation:
pls heart and give brainliest
The equation where the constant of proportionality is greater than 1 is [tex]\mathbf{p = 1.5r}[/tex], and the equation where the constant of proportionality is less than 1 is [tex]\mathbf{r = 0.67p}[/tex]
(a) Constant of proportionality greater than 1
Represent peanuts with p, and raisins with r.
So, the ratio is given as:
[tex]\mathbf{p : r = 6 : 4}[/tex]
Express as fraction
[tex]\mathbf{\frac pr = \frac 64}[/tex]
Multiply both sides by r
[tex]\mathbf{p = \frac 64r}[/tex]
[tex]\mathbf{p = 1.5r}[/tex]
(b) Constant of proportionality less than 1
In (a), we have:
[tex]\mathbf{p = 1.5r}[/tex]
Divide both sides by 1.5
[tex]\mathbf{r = \frac{1}{1.5}p}[/tex]
[tex]\mathbf{r = 0.67p}[/tex]
The graphs of [tex]\mathbf{p = 1.5r}[/tex] and [tex]\mathbf{r = 0.67p}[/tex] are the same.
See attachment for the required graph
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Can someone help me with this? The teacher assigned this for homework even though we haven't learned about this yet...... it's about functions in math.
Here are the drop-down menu answer choices for "The domain of f is":
*the final exam scores
*the history classes in the school
*the students in Mr. Well's history class
*the real numbers
Here are the drop-down menu answer choices for "The range of f is":
*the final exam scores
*the history classes in the school
*the students in Mr. Well's history class
*the real numbers
ALSO:
Please fill in the blanks for "f_____ a function because each student, each element of the_______, corresponds to ________ element of the _______.
I have attached pictures of the answer choices for this question below:
Answer:
f is a function because each student, or each element of the domain, corresponds to one element of range.
Step-by-step explanation:
function is each input has one output. input is domain, output is range
A car rental company charges a daily rate of $ 24 plus $ 0.10 per mile for a certain car. Suppose that you rent that car for a day and your bill (before taxes) is $ 37.00. How many miles did you drive?
_________miles
A family paid $29,600 as a down payment for a home. If this represents 16% of the price of the home, find the price of the home.
Answer:
$185,000
Step-by-step explanation:
29600 / 16 = 1850 (which is 1%)....1850 X 100% = $185,000.
27:6= 4r3
O A. Incorrect
O B. Correct
B. Correct
Step-by-step explanation:Hi there !
27 : 6 = 4 r3
27 = 6×4 + r3
27 = 24 + 3
27 = 27
(correct)
Good luck !
15. Mr. Ryan at Ryan's Sporting Goods plan
to order 1344 baseballs. Baseballs are
packaged in cartons that each contain
24 baseballs. How many cartons should
Mr. Ryan order?
A 60 RA
BG 56
CO 54
DO 51 R20
Answer:56
Step-by-step explanation: Since there are 1344 baseballs and 24 baseballs in each carton. You divide 1344 by 24 and get 56.
Hope I helped! :)