Using a system of equations, it is found that Teresa's password in the 7th day of the month is of 98.
What is a system of equations?A system of equations is when two or more variables are related, and equations are built to find the values of each variable.
The rule for her password is defined as follows: A whole number that is equal to four times the fourth power of the day of the month divided by two times the square day of the month. Hence, considering n as the day of the month, the equation is given by:
[tex]P = \frac{4n^4}{2n^2} = 2n^2[/tex]
Hence, for the 7th day, the password is given by:
P = 2 x 7² = 98.
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The principal sent a message to 25 students to ask them to
help pick up litter after school. Only 8 of them showed up.
What percentage of the students came to pick up litter?
Answer: 32%
Step-by-step explanation:
100 / 25= 4
4 x 8 = 32%
PLEASE HELP WILL GIVE BRAINLEST! What is the amplitude of the function graphed below?
Answer:
The amplitude is the maximum displacement/highest peek
Which is in your case = 2
Find the length of the third side. If necessary, write in simplest radical form
Answer:
7.2
Step-by-step explanation:
(6)^2 + (4)^2
36 + 16
52
square root of 52 = 7.2
What is the volume of the following rectangular prism and the top of the shape 9 units squared and the hight is 3 2/3
Answer:
2x^3 + 5x^2 - 18x - 45 m
V = lwh
V = (x + 3)(x - 3)(2x + 5)
V = ((x)(x) + (x)(-3) + (3)(x) + (3)(-3))(2x + 5)
V = (x^2 - 3x + 3x - 9)(2x + 5)
V = (x^2 - 9)(2x + 5)
V = (x^2)(2x) + (x^2)(5) + (-9)(2x) + (-9)(5)
V = 2x^3 + 5x^2 - 18x - 45
The value of “p” in 1
3
+ p = 2
5
is .............
Answer:
p = 12
Step-by-step explanation:
13 + p = 25 ( subtract 13 from both sides )
p = 12
Answer:
the value of P is 12
Step-by-step explanation:
if 13+P=25 then P must be 12
subtract 13 from both sides
you're left with P=12
Options
3 - 2n
3 + 2n
2 + 3n
2 - 3n
Answer:
3 - 2n
Explanation:
Difference means we have to subtract integers.
Let the number be n. Twice of this number: 2n
Difference of 3 and twice this number: 3 - 2n
Can somebody help me with this
Probability = option(s) that we want / total number of possibilities
Options that we want = cash or credit card = 50 + 4 = 54
Total number of possibilities = cash, debit card, credit card = 50 + 2 + 4 = 56
54 / 56 = 0.96
Answer: 0.96
Hope this helps!
20. Factor the trinomial.
Factors of 40: (1, 40) (2, 20) (4, 10) (5, 8)
---Using these factors will help us find a pair that adds up to -13 and multiplies to equal 40
-5 + -8 = -13
-5 x -8 = 40
(v - 8)(v - 5)
The trinomial can be factored into the following expression (v - 8)(v - 5).
Hope this helps!
which clock shows 25 minuites after 4:00?
Answer: attached a picture
The fourth clock shows the time 25 minutes after 4:00.
The correct option is IV.
What is multiplication?Multiplication is a mathematical arithmetic operation. It is also a process of adding the same types of expression some number of times.
Example - 2 × 3 means 2 is added three times, or 3 is added 2 times.
Given:
There are four clocks.
To watch the time on the clock:
The small arrow line shows the time in hours.
And the large arrow shows the time in minutes.
At the first clock;
The time is 11:20.
At the second clock;
The time is 11:40.
At the third clock;
The time is 12:20.
At the fourth clock;
The time is 4:25.
25 minutes after 4:00 means the large arrow will be pointing towards 5.
Because 25 = 5 x 5.
Therefore, all the times on the clocks are given above.
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The complete question;
From the given choices,
which clock shows 25 minutes after 4:00?
The options are given in the attached image.
What is the area of the figure shown?
Check the picture below.
[tex]\textit{area of a circular ring}\\\\ A=\pi (R^2-r^2) ~~ \begin{cases} R=\stackrel{larger}{radius}\\ r=\stackrel{smaller}{radius}\\[-0.5em] \hrulefill\\ R=10.5\\ r=7 \end{cases}\implies \begin{array}{llll} A=\pi (10.5^2 - 7^2)\implies A=61.25\pi \\\\\\ A\approx 192.42~m^2 \end{array}[/tex]
Identifying the Graph of a
Function
Try It
Which graph represents the function h(x) = |x - 3|?
Answer: the one that passes through the y-intercept of -3
Step-by-step explanation:
Answer:
its c
Step-by-step explanation:
Right triangles below, find the values of the lengths d and h. Round your answers to the nearest tenth 
Answer:
Here is the answer...hope it helps
witch fraction correctly represents 0.6 A. 5/12 B. 7.11 C. 2/3 D. 9/13
please do this and help dont just do it for the points and please help asap thank u
PLSSS HELP IF YOU TURLY KNOW THISS
40 POINTS!!!
Find the volume of this irregular figure.
Hint: Find the volume of the whole rectangular prism, then subtract the volume of the missing piece, which is also a rectangular prism.
Answer:
470 cm³
Step-by-step explanation:
Volume of rectangular prism = width × length × height
⇒ Volume of whole rectangular prism = 9 cm × 10 cm × 8 cm
= 720 cm³
Side lengths of the missing piece:
width = 5 cmlength = 10 cmheight = 8 cm - 3 cm = 5 cm⇒ Volume of the missing piece = 5 cm × 10 cm × 5 cm
= 250 cm³
⇒ Volume of irregular figure = 720 cm³ - 250 cm³
= 470 cm³
What is the answer to this problem
Answer:
your answer is 242 in^2
A=22+52+168
What number is 90% of
140?
Answer:
126
Step-by-step explanation:
(see image) please help I need help with this math problem * i give brainlist
Trapezoid defg is dilated according to the rule do,4(x,y) to form the image trapezoid d'e'f'g', which is shown on the graph. on a coordinate plane, trapezoid d prime e prime f prime g prime has points (negative 8, 8), (negative 3, 8), (negative 5, 4), and (negative 8, 4). what are the coordinates of point g of the pre-image? (-2, 1) (-4, 2) (-12, 0) (-32, 16)
Since the figure is dilated by a factor of 4, the coordinates of point g of the pre-image is (-2, 1)
How to determine the coordinates of point g?The coordinates of the image are given as:
d' = (-8,8)e' = (-3,8)f' = (-5,4)g' = (-8,4)The dilation rule is given as:
(x,y) -> 4(x,y)
So, we have:
(-8,4) = 4 * g
Divide both sides by 4
g = (-2,1)
Hence, the coordinates of point g of the pre-image is (-2, 1)
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Answer:
A
Step-by-step explanation:
edge
A car with a cost price of $5200 is
sold at a profit of 15%. Calculate the
selling price
Answer:
We are given the initial price of a car and we are also told that the car sold for a 15% profit which means that the price that the car was sold for is 15% more than it's initial price. This is just a simple multiplication problem which we multiply the initial price by the total percentage plus 0.15
[tex]Sold\ Price = Initial\ Price *(Total\ Percentage+Profit\ Percentage)[/tex]
[tex]Sold\ Price = \$5200*(1+0.15)[/tex]
[tex]Sold\ Price = \$5200*(1.15)[/tex]
[tex]Sold\ Price = \$5980[/tex]
Therefore, our final answer is that the selling price was $5980
Hope this helps!
Mariana buys bottles of orange juice at the corner store. assume each bottle of juice is the same price. the proportional relationship between the number of juice bottles bought, j, and the total cost in dollars and cents, c, can be represented by the equation c=0.8jc=0.8j. what is the cost in dollars and cents of each bottle of juice?
By evaluating the function in j = 1, we conclude that each bottle costs 80 cents.
What is the cost in dollars and cents of each bottle of juice?We know that the total cost in dollars can be represented by the linear equation:
C(j) = 0.8*j
Where C is the cost, and j is the number of juice bottles bought.
Then to get the cost of each bottle, we can evaluate the function in 1, which means buying only one.
C(1) = 0.8*1 = 0.8
So each bottle costs $0.80 (or 80 cents).
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Write the quadratic equation in standard form:
5x^2+7+3x=-3x
Answer:
5x²+6x+7=0
Step-by-step explanation:
Yeah. I think it's the answer
Answer:
5x² + 6x + 7 = 0
Step-by-step explanation:
Standard form of quadratic equation :
Ax² + Bx + C = 0Solving :
5x² + 7 + 3x = -3x5x² + 7 + 3x + 3x = 05x² + 6x + 7 = 0what is 2 17/18 divided by 6 as a fraction
HELP ASAP PLEASE, this is the last question i promise T^T
WILL MARK BRAINLIEST AND GIVE POINTS
find the perimeter of a circular sector if the diameter of its circle equals 10cm and its arc length = 10cm. equals = ......... cm.
a) 10
b) 20
c) 30
d) 40
an explanation for future reference would be greatly appreciated, thank youuu <33
Answer:
A= 10
Step-by-step explanation:
[10 + 2/360˚(10)]
Sphere B is the image of sphere A after dilation by a scale factor of 44. If the volume of sphere A is 50 m^3
3
, find the volume of sphere B, the image.
Step-by-step explanation:
there is no image here. and we don't know, if B is smaller or lager than A.
anyway, the volume of a sphere is
4/3 × pi × r³ = 4/3 × pi × r×r×r
that means the scale factor applying to r (radius) has to be multiplied in 3 times (with every r). so, to compare the volumes, the volume scale factor is cubed the linear scale factor.
44³ = 85184
if B is smaller, then its volume is 50/85184 m³
if B is larger, then its volume is 50×85184 m³
since this a such a big number, you made possibly a typo with the scale factor.
The volume of sphere B, the image of sphere A after dilation by a scale
factor of 44, is approximately 1,223,762.42 cubic meters.
What is mean by Circle?The circle is a closed two dimensional figure , in which the set of all points is equidistance from the center.
Since, The volume of a sphere is given by the formula:
V = (4/3) pi r
where V is the volume, pi is the constant 3.14.., and r is the radius of the sphere.
Since, sphere A has a volume of 50 cubic meters, we can use this formula to solve for its radius:
50 = (4/3) pi r
r = (3/4) (50 / pi)
r = (3/(4pi) 50)^(1/3)
r = 2.67 meters
Note that we know,
The radius of sphere A, we can use the scale factor of 44 to find the radius of sphere B:
rₐ = 44 rₓ
rₐ = 44 × 2.67
rₐ = 117.48 meters
Finally, we can use the volume formula again to find the volume of sphere B:
V(B) = (4/3) pi rₓ
V (B) = (4/3) pi (117.48)
V (B) = 1,223,762.42 cubic meters
Therefore, the volume of sphere B, the image of sphere A after dilation by a scale factor of 44, is approximately 1,223,762.42 cubic meters.
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6. Andy scored 90 on the last history exam. He scored 81 this time. By what percent did his score decrease?
Answer:
His score decreased by 9 percent this time.
Step-by-step explanation:
From his first history exam he had a score of 90 percent. The difference between his first score and present score is given by
90 - 81 = 9
giving brainliest help asap
Answer:
12,30
Step-by-step explanation:
Hence the numbers can either be (6,60) or (12,30), but as both the numbers are greater than 6 so the answer is (12,30)
What transformation will prove that these two triangles are CONGRUENT.
Answer:
Reflection across the x axis
Step-by-step explanation:
When the triangle reflects across the x axis it will directly map over the other triangle and will appear to be congruent
Answer:
A reflection over the x - axis.
Step-by-step explanation:
The new position of a point, a line, a line segment, or a figure after a transformation is called its image. line y=x. A reflection is a type of transformation known as a flip. The figure will not change size or shape. Mathematical reflections are shown using lines or figures on a coordinate plane. The reason these two triangles are congruent is they reflect each other meaning that they are complete opposites reflecting. When mapped, they are completely reflecting.
Find the circumference and area of the circle to the nearest hundredth. Use 3.14 for π. Round to the nearest hundredth if necessary.
54 cm
The circumference of the circle is about
cm.
The area of the circle is about
cm2.
The circumference of the circle is about 339 cm.
The area of the circle is about 9, 156 cm∧ 2
NOTE :
The circumference of a circle is known to be the perimeter of the circle.
It is determined using ;
Circumference, C = 2 π r
The area of a circle is known to be the axis occupied by the circle in a two-dimensional plane.
It is determined using ;
Area, A = π r ∧2
How to determine the area and circumference of a circle
Parameters:
π = 3.14
radius, r =54 cm
Circumference, C = 2 π r = 2 × 3.14 × 54 = 339. 12 cm
Circumference , C in the nearest hundredth = 339 cm
Area, A = π r∧ 2 = 3. 14 × 54 × 54 = 9,156.24 cm∧ 2
Area, A in the nearest hundredth = 9,156 cm∧2
Thus, the circumference of the circle in the nearest hundredth is 339cm and the area of the circle in the nearest hundredth is 9, 156 cm∧2
Which of the following is a radical equation?
Ox√3=13
O x+√3=13
O√x+3=13
O x+3=√13
Answer:
The answer would be: √x+3=13
Step-by-step explanation:
A radical equation is an equation with at least one variable put on a radical form. In this question, there is only one kind of variable which is x. Then, you need to find the equation where x is in the radical form. The radical form can be expressed with square root symbol.
The option with √x would be only √x+3=13