Answer:
A - 1:6
Step-by-step explanation:
find the p(2) for each of the following functions 1.p(x) = -2x³ + 4x - 1 ?
Answer:
p(2) = -9
General Formulas and Concepts:
Pre-Alg
Order of Operations: BPEMDASStep-by-step explanation:
Step 1: Define
p(x) = -2x³ + 4x - 1
p(2) is x = 2
Step 2: Solve
Substitute: p(2) = -2(2)³ + 4(2) - 1Evaluate: p(2) = -2(8) + 4(2) - 1Multiply: p(2) = -16 + 8 - 1Add: p(2) = -8 - 1Subtract: p(2) = -93.1/3÷2.3/5
I Mark brainlies
Answer:
1.11/39
Step-by-step explanation:
6. A shopkeeper buys a stove from a manufacturer
for $860.
Calculate:
(a) the selling price if he makes a profit of 15%
Answer:
129
Step-by-step explanation:
google 15% off 860$ and which equals 731 and then do 860-731
Owen owns Ultra Iceez, an ice cream stand. On Tuesday morning, he withdrew $120 from the
stand's bank account to pay for new door locks. On Tuesday afternoon, he deposited $315
from the day's sales.
What was the total change in the ice cream stand's bank account relative to where it started?
Answer:
$95
Step-by-step explanation:
315-120=95
Answer:
195
Step-by-step explanation:
A new bank customer with $3,000 wants to open a money market account. The bank is offering a simple interest rate of 1.1%. How much will the customer earn in one year?
Given:
Principal amount = $3000
Rate of simple interest = 1.1%
To find:
The amount that the customer will earn in one year.
Solution:
Formula for simple interest is
[tex]I=P\times r\times t[/tex]
where, P is principal, r is rate of interest and t is time in years.
Substituting P=3000, r=0.011 and t=1, we get
[tex]I=3000\times 0.011\times 1[/tex]
[tex]I=33[/tex]
Therefore, the customer will earn $33 in one year.
Select all the statements about the figure that MUST be true. Р Q 6n + 3 S 4n + 11 R PR=15 QS=21 QP=13 n=7 SR=27 QR=54
Answer:
Options (5) and (6)
Step-by-step explanation:
From the picture attached,
In right triangle ΔPSQ and ΔPSR,
PS ≅ PS [By reflexive property]
PQ ≅ PR [Given]
ΔPSQ ≅ ΔPSR [By HL property of congruence]
Therefore, QS ≅ SR [CPCTC]
(6n + 3) = (4n + 11)
6n - 4n = 11 - 3
2n = 8
n = 4
QS = (6n + 3)
= 6×4 + 3
= 27
SR = (4n + 11)
= 4×4 + 11
= 16 + 11
= 27
QR = QS + SR
= 27 + 27
= 54
Therefore, Options (5) and (6) are the correct options.
Please someone help me
Answer:
D
Step-by-step explanation:
Answer:
uhh what kinda symbols r those
Step-by-step explanation:
How many solutions does this system have?
y =-3x. -9x-4y=21
one
two
an infinite number
no solution
Answer:
one or seven READ DESCRIPTION
Step-by-step explanation:
y =-3x. -9x-4y=21
-9x+12x=21
3x=21
3*7=21
if you didn't mean to do a double negative then it would be one, but otherwise it's seven
Answer:
one
Step-by-step explanation:
right on edge
There is a new kids movie out that everyone is seeing. On the first night the theater sold 200 tickets total. Adult tickets are $8.50, child tickets are $3.50, and they made $1,500 dollars that night. How many adults and how many children saw the movie?
9514 1404 393
Answer:
160 adults40 kidsStep-by-step explanation:
Let 'a' represent the number of adult tickets sold. Then (200-a) is the number of child tickets sold. The total revenue is ...
8.50a +3.50(200 -a) = 1500
5a = 800 . . . . . . . . . . . . . . . . . . . subtract 700 and collect terms
a = 160
(200-a) = 40
160 adults and 40 children paid to see the movie.
Answer:
160 adults and 40 children saw the movie on the first night.
Step-by-step explanation:
Total number of tickets sold = 200
Let the total number of adults be 'x'
So, Total number of children = 200 - x
Cost of adult tickets = $8.50
Cost of child tickets = $3.50
Total sum made on first night = $1,500
Total sum made on first night is equal to total cost of adult tickets + total cost of child tickets
[tex] \longrightarrow [/tex] 8.50x + 3.50(200 - x) = 1500
[tex] \longrightarrow [/tex] 8.5x + 700 - 3.5x = 1500
[tex] \longrightarrow [/tex] 8.5x - 3.5x = 1500 - 700
[tex] \longrightarrow [/tex] 5x = 800
[tex] \longrightarrow [/tex] x = [tex] \sf \dfrac{800}{5} [/tex]
[tex] \longrightarrow [/tex] x = 160
[tex] \therefore [/tex] Total number of adults = 160
Total number of children = 200 - 160 = 40
Question Progress
73%
b)
The table shows information about the numbers of hours 30 children
spent on their tablets one evening.
Number of hours (h) Frequency
0 << 1
6
1
13
2
7
3
4
a) Find the class interval that contains the median.
b) Work out an estimate for the mean number of hours.
Answer=
a= 2<h<3
b=2.2
a) The class interval that contains the median. is 1 ≤ h ≤ 2.
b) The mean number of hours is, 1.8 h
What is mean and median?The arithmetic mean is found by adding the numbers and dividing the sum by the number of numbers in the list. And, The median is the middle value in a list ordered from smallest to largest.
Now,
a) First find the median as,
Median = 30/2
= 15
Now, 6 + 13 = 19 > 19
So, The class interval that contains the median be 1 ≤ h ≤ 2.
b) Let us take the middle of the range as the average;
⇒ (6 × (1 - 0)/2 + 13 × (2 + 1)/2 + 7 ×(2 + 3)/2 + 4 × (3 + 4)/2 ) / 30
⇒ (3 + 19.5 + 17.5 + 14) / 30
⇒ 54/30
⇒ 1.8 hours
So, The value of mean is 1.8.
Learn more about mean and median visit:
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Stan evaluated a function with a value and got 3 as the result. He wrote the entire process as a sentence: The function , when evaluated with , gives the value 3.
The function f(x) = x^2-1 when evaluated with 2, gives the value 3.
What is a function?A function can then be defined as a set of ordered pairs. Function is an expression, rule, or law that defines a relationship between one variable (the independent variable) and another variable (the dependent variable).
For the given situation,
Stan evaluated a function with a value and got 3 as the result.
For this statement, we can frame many functions with different inputs.
Let us consider the function,
(1) [tex]f(x)=2x-3[/tex]
Now substitute x = 3,
⇒ [tex]f(3)=2(3)-3[/tex]
⇒ [tex]f(3)=6-3\\[/tex]
⇒ [tex]f(3)=3[/tex]
(2) [tex]f(x)=x^{2} -1\\[/tex]
Now put x = 2,
⇒ [tex]f(2)=2^{2}-1[/tex]
⇒ [tex]f(2)=4-1[/tex]
⇒ [tex]f(2)=3[/tex]
Similarly we can make many functions that has the value 3 as the result.
Hence we can conclude that the function f(x) = x^2-1 when evaluated with 2, gives the value 3.
Learn more about functions here
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PLEASEEE HELP!!!!!
Name the congruent triangles and justify the reason for congruence.
AABC - AFDE by HL
AABC - AEDF by ASA
AABC - AFED by HL
AABC - AFED by ASA
Answer:
b
Step-by-step explanation:
i just took the test
The solution is, ΔABC ≅ ΔFDE by SAS congruence rule.
The correct option is (1).
What are congruent triangles?Congruence is a phrase used frequently in mathematics to refer to a harmonious connection, comprehension, or correlation. A geometric figure is said to be congruent or to be in the relation of congruence if it is feasible to superimpose it on another so that their whole surfaces match. Two triangles are said to be congruent when two sides and their included angles in one triangle are equal to two sides and their included angles in the other.
here, we have,
As per the given data:
In ΔABC :
∠A = 63°
AC = 2.2
In ΔFED :
∠F = 63°
FE = 2.2
By using the distance formula, we can find AB and FD.
From the coordinates, as we can see in the diagram
FD = 2 units
Similarly,
AB = 2 units
Now from SAS congruence rule:
AB = FD (Both are 2 units)
∠A = ∠F (given)
AC = FE (given)
Hence, ΔABC ≅ ΔFDE by SAS congruence rule.
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What is 12 11/48 rounded to the nearest half A.12 B.12 1/2 C.13 D.13 1/2
Answer:
A.12
Step-by-step explanation:
The reason is that 11/48 is equal to 0.2239..., so when you round that answer, it is closer to 12.
State the slope and y intercept of this Y= -5x -1
Answer:
Slope: -5
y-Intercept: -1
Step-by-step explanation:
In the equation y = mx + b (its the form of a linear equation) the slope is m and the y-intercept is b. Comparing that to the problem, we can see that m = -5 and b = -1. So, the slope is -5 and the y-intercept is -1.
Answer:
y= -5x -1
y=mx+b
b- is y intercept
m-is slope
Step-by-step explanation:
Ridah has a triangular garden with the sides 28m, 15m and 41m. She has planted rose and marigold plants in her garden. She used two-third of area of the garden for planting rose plants and the rest of the area for marigold. How much area has been used for planting marigold?
Answer:
Step-by-step explanation:
Trevon made 24 of the 40 free throws he attempted last season. What percent of his attempted free throws did Trevon make?
Answer:
60%
Step-by-step explanation:
24/40=0.6
0.6=60%
Answer:
60
Step-by-step explanation:
24:40×100=
(24×100):40=
2400:24=60
Ms. Lai loves soup. This weekend she visited each of her family member’s house to drink their soup. She drank 2 cups of soup at her aunt’s place, 4 pints of soup at her uncle’s place, and 2 quarts of soup at her dad’s place. Can you find out how many ounces of soup she drank this weekend???? Give explanation this is due in 15 min HELPP pleaseee
Answer:
112 Ounces
Step-by-step explanation:
2 Cups + 4 Pints + 2 Quarts = 14 Cups
14 Cups = 112 Ounces
Answer:
144 ounces of soup
Step-by-step explanation:
2 cups= 16 ounces
4 pints= 64 ounces
2 quarts= 64 ounces
64+64+16=144
You are locked out of your villa in Dubai and the only open window is on the second floor to get inside. You need to borrow a ladder from your neighbour. So you will have to propped up ladder against villa, since there is a bush along the edge of the house find the interior angles of the triangle formed to reach window and exterior angles on the ground. Justify your answer.
pls answer pls pls
Answer:
You are locked out of your villa in Dubai and the only open window is on the second floor to get inside. You need to borrow a ladder from your neighbour. So you will have to propped up ladder against villa, since there is a bush along the edge of the house find the interior angles of the triangle formed to reach window and exterior angles on the ground. Justify your answer.
pls answer pls pls
what is 0.2 as a fraction
Answer:
That is 1/5.
Step-by-step explanation:
It is also 20%(if you need that too.)
PLEASE PLEASE HELP ME OUT ITS URGENT
What are the solutions to the quadratic equation?
Answer: Choice C) [tex]x = 4\pm2\sqrt{10}[/tex]
This is the same as saying [tex]x = 4+2\sqrt{10} \ \ \text{ or } \ \ x = 4-2\sqrt{10}[/tex]
=============================================================
Explanation:
First get everything to one side
x^2 + 13 = 8x + 37
x^2 + 13 - 8x - 37 = 0
x^2 - 8x - 24 = 0
Here we have a quadratic in the form ax^2+bx+c = 0
Note how a = 1, b = -8, c = -24
Those values are plugged into the quadratic formula below
[tex]x = \frac{-b\pm\sqrt{b^2-4ac}}{2a}\\\\x = \frac{-(-8)\pm\sqrt{(-8)^2-4(1)(-24)}}{2(1)}\\\\x = \frac{8\pm\sqrt{160}}{2}\\\\x = \frac{8\pm\sqrt{16*10}}{2}\\\\x = \frac{8\pm\sqrt{16}*\sqrt{10}}{2}\\\\x = \frac{8\pm4*\sqrt{10}}{2}\\\\x = \frac{2(4\pm2\sqrt{10})}{2}\\\\x = 4\pm2\sqrt{10}[/tex]
This shows the answer is choice C.
The plus minus breaks down that equation these two solutions
[tex]x = 4+2\sqrt{10} \ \ \text{ or } \ \ x = 4-2\sqrt{10}[/tex]
6TH GRADE MATH - WILL GET 69 POINTS FOR ANSWERING
A movie theater is located on a map of a city represented by a coordinate plane. The location of the movie theater is at (−3, −4). Which map shows the correct location of the movie theater?
1; A coordinate grid with a point at 3 units to the right and 4 units down from the origin labeled movie theater.
2; A coordinate grid with a point at 3 units to the left and 4 units down from the origin labeled movie theater.
3; A coordinate grid with a point at 3 units to the right and 4 units up from the origin labeled movie theater.
4; A coordinate grid with a point at 3 units to the left and 4 units up from the origin labeled movie theater.
Answer:
The 1st choice
Step-by-step explanation:
Let a point is defined as P(a,b).
If a>0, then point is a units right from origin and if a<0, then then point is a units left from origin.
If b>0, then point is b units up from origin and if b<0, then then point is b units down from origin.
It is given that the location of the movie theater is at (2, −3).
In the given point a=2>0 and b=-3<0.
A coordinate grid with a point at 2 units to the right and 3 units down from the origin labeled movie theater.
Solve the equation. a4−56=−12 a=
PLEASE ANSWER THESE 4 QUESTIONS WILL MARK BRANLIEST I AM TIMED :)
Answer:
its 3.
Step-by-step explanation:
HOpe that helped
Twice the difference of a number and ten is fifty-four. Find the number,
Answer:
37
Step-by-step explanation:
2(x-10)=54
2x-20=54
2x=74
x=37
price of 1 kg sugar is rupees 104.25 find the price of 50 kg
Answer:
5,212.5 rupees
Step-by-step explanation:
If price of 1 kg is 104.25
multiply 50 by 104.25
equals 5,212.5 rupees
Answer:
5212.50 rupees
Step-by-step explanation:
We can use a ratio
1 kg 50 kg
----------- = ---------------
104.25 x
Using cross products
1x = 50 * 104.25
x =5212.50 rupees
How do I solve this
Thanks
Answer:
-8
Step-by-step explanation:
-8 * (-2) - 4 * (6) =
16 - 24
0
f(1) = -2
g(4) = 6
im not having a good day so maybe this will make someone elses a little bit better :) Heres 100 points.
Answer:
yo thank you man your the best
Tysm have a good day :)
solving two step inequalities word problems
Answer:
Sylvia needs to work at least 19 hours.
Step-by-step explanation:
Inequality: 10x + 120 ≥ 310
Subtract 120 from both sides;
10x ≥ 190
Divide both sides by 10;
x ≥ 19
two angles complementary to the same angle are congruent to each other True/False
Answer: true
Step-by-step explanation:
m_DUL+ m_LUG=
MZDUG
Completing measure proofs
