Answer:
how should I help you with
Solve 6x + 3) = 21.
A. x = -3 and x = -4
O B. x = 3 and x = -3
C. X = -3 and x = 4
D. x = 3 and x = -4
Answer:
×=3
Step-by-step explanation:
6x +3) =21
6x=21 - 3
6x/6x=18/6
x=3
Which is the best estimate of 90 square root
Answer:
9.486
Step-by-step explanation:
the best estimate of 90 square root is 9.486
The inequality -9<21 is given. Write the inequality you get when you perform the following operation.
Divide both sides of the inequality by -3.
Answer:
3 > -7
Step-by-step explanation:
-9 < 21
/-3 /-3
------------
3 < -7
Now, whenever you divide or multiply by a negative, you will change the inequality sign.
So, 3 < -7 becomes 3 > -7
Answer:
3 > -7
Step-by-step explanation:
-9/ -3 = 3
21/ -3 = -7
3 = -7
3 > -7
what is the ep weight of banana
Answer:
Answer:
The number of chirps per minute is 72
Step-by-step explanation:
Here, using the formula given, we want to find the number N representing the number of chirps per minute.
To get this, we shall simply substitute the value of 58 for T in the equation;
Thus;
58 = 50 + (N-40)/4
58 -50 = (N-40)/4
8 = (N-40)/4
4 * 8 = N -40
32 = N -40
N = 40 + 32
N = 72
Step-by-step explanation:
If a = t and b=2 then find the value of - 2ab and - 3a+b
Step-by-step explanation:
Given,
a=t
b=2
-2ab=-2×t×2 = -4t
-3a+b=-3×t+2= -3t+2
The maximum point of the function f (x) = -2x2 + 4x + 6 is:
please help me
Step-by-step explanation:
By Completing the Square,
[tex]\begin{align}f(x)&=-2x^2+4x+6\\&=-2(x^2-2x)+6\\&=-2(x^2-2x+1)+8\\&=-2(x-1)^2+8 \end{align}[/tex]
Since the first tern is at most zero, the maximum value occurs when
[tex]x=1, f(x)=8[/tex]
4)Jose makes $17 an hour and works a 30 hour work week. He loses
20 % of his paycheck to Taxes and SSI. How much is does he keep
from his check?
Answer:
$408
Step-by-step explanation:
$17 x 30 = $510
100% = 510
20% = taxes
remaining amount = 80%
80% of 510 = 0.80 * 510
0.80 * 510 = $408
If my answer is incorrect, pls correct me!
If you like my answer and explanation, mark me as brainliest!
-Chetan K
Answer:
408
Step-by-step explanation:
I think so check with others
5/7-(-1/7) plz help I am confused
Answer:
[tex] \frac{6}{7} [/tex]
Step-by-step explanation:
[tex] \frac{5}{7} - ( - \frac{1}{7} )[/tex]
[tex] \frac{5}{7} + \frac{1}{7} [/tex]
[tex] = \frac{6}{7} [/tex]
The average price for a gallon of gas in the US went up from $2.92 in November 2010 to $3.70 in November 2011. What is the percent increase in the average price for a gallon of gas over this time period?
Answer:
(3.70 - 2.92) / 2.92 = about 0.27%.
please help i will give extra points!!!
Answer:
16
Step-by-step explanation:
solve expression using pemdas
(shown in image)
Answer:
16
Step-by-step explanation:
(-7+3^2)8
(-7+9)8
(2)8
16
Hope that helped! (Please mark brainliest)
You want to collect data on a random sample of products created on a production line. The company has
two types of products (A and B). For each of the scenarios described below, please name the sampling
method.
A. You randomly select the serial numbers of 50 products and collect information on each item selected.
B. You randomly select 20 products of type A and 20 products of type B.
c. You select every 20th product as they come off the production line.
Using sampling classifications, it is found that:
a) Cluster sampling.b) Stratified sampling.c) Systematic sampling.-----------------------
Samples are classified as:
Convenient: Sample drawn from a conveniently available pool. Random: Basically, put all the options into a hat and drawn some of them. Systematic: Every kth element is taken. For example, you want to survey something on the street, you interview every 5th person, for example. Cluster: Divides population into groups, called clusters, and each element in the cluster is surveyed. Stratified: Also divides the population into groups. However, then only some elements of the group are surveyed.-----------------------
Item a:
Products chosen, and then each is used. Thus, cluster sampling.-----------------------
Item b:
A number of elements from each group, not all, thus, stratified sampling.-----------------------
Item c:
Every kth element, in this case, every 20th, thus systematic sampling.A similar question is given at https://brainly.com/question/24188753
Y=5x8/2 Which graph correctly represents the line?
Answer:
the correct answer is 20 because 5x8=40/2=20 so Y=20
-2 17/18 as a decimal
17/18 as a decimal is 0.94444444444444.
pls answer correctly!
n - 6m = 8
solve for n
Hi there!
»»————- ★ ————-««
I believe your answer is:
[tex]n = 8 + 6m[/tex]
»»————- ★ ————-««
Here’s why:
⸻⸻⸻⸻
[tex]\boxed{\text{Solving for 'm'...}}\\\\n - 6m = 8\\------------\\\rightarrow n - 6m = 8 \\\\\rightarrow n - 6m + 6m = 8 + 6m\\\\\rightarrow \boxed{n = 8 + 6m}[/tex]
⸻⸻⸻⸻
»»————- ★ ————-««
Hope this helps you. I apologize if it’s incorrect.
2.86x10^8 scientific notation
[tex]\large \mathfrak{Solution : }[/tex]
Yes, 2.86 × 10⁸ is written in the scientific notation. it can be also expressed as expanded form :
286000000Answer:286 000000
Step-by-step explanation:Scientific notation can be used to represent very large or very small numbers. A number written in scientific notation will have a non-zero digit to the left of the decimal point, multiplied by a power
ten , with an exponent corresponding to the number of places the decimal will move.
HELP PLZ WILL MARK THE BRAINLIEST -Solve the compound inequality 6b < 24 or 4b + 12 > 4.
A) b < 4 or b > −2
B) b < 4 or b > 4
C) b < 4 or b > 2 D)b > 4 or b < −2
sin(60-theta)sin(60+theta)
Step-by-step explanation:
[tex] \sin(60 - \theta) \sin(60 + \theta) \\ = \{ \sin(60) \cos( \theta) - \sin( \theta) \cos(60) \} \{ \sin(60) \cos( \theta) + \cos(60) \sin( \theta) \} \\ = \{ \frac{ \sqrt{3} }{2} \cos( \theta) - \frac{1}{2} \sin( \theta) \} \{ \frac{ \sqrt{3} }{2} \cos( \theta) + \frac{1}{2} \sin( \theta) \} \\ \\ [/tex]
from difference of two squares:
[tex]{ \boxed{(a - b)(a + b) = ( {a}^{2} - {b}^{2} ) }}[/tex]
therefore:
[tex] = \{ {( \frac{ \sqrt{3} }{2}) }^{2} { \cos }^{2} \theta \} - \{ {( \frac{ \sqrt{3} }{2} )}^{2} { \sin }^{2} \theta \} \\ \\ = \frac{3}{4} { \cos }^{2} \theta - \frac{3}{4} { \sin}^{2} \theta[/tex]
factorise out ¾ :
[tex] = \frac{3}{4} ( { \cos }^{2} \theta - { \sin}^{2} \theta) \\ \\ = { \boxed{ \frac{3}{4} \cos(2 \theta) }}[/tex]
Please help me
I’ll mark brainiest
Answer:
which number
every of them?
To win a certain lotto, a person must spell the word big. Sixty percent of the tickets contain the letter b, 30% contain the letter i, and 10% contain the letter g. Find the average number of tickets a person must buy to win the prize. (30)
Answer:
30
Step-by-step explanation:
Convert 6% to a fraction in a simplest form
Answer:
[tex]\frac{3}{50}[/tex]
Step-by-step explanation:
6% = [tex]\frac{6}{100}[/tex]
= 0.06
= [tex]\frac{0.06}{1}[/tex] × [tex]\frac{100}{100}[/tex]
= [tex]\frac{6}{100}[/tex]
= [tex]\frac{3}{50}[/tex]
c. When measuring the dimensions of a room a carpenter uses a tape measure that only displays a number of feet, L, on the metal tape.
(The carpenter's tape measure does not display inches).
i. Write an expression to determine the length of the room in yards.
Preview
ii. Write an expression to determine the length of the room in units of 3 feet (yards).
Preview
iii. Write an expression to determine how many times as long the room is than 3 feet.
Preview
The dimension of a room is the length and width of the room.
The length of the room in yard is L/3An expression for the length of the room in unit of 3ft is 3LThe room is longer than 3 feet, in L timesFrom the question, we have:
[tex]L \to[/tex] Number of feet
(a) An expression for the length of the room in yards
In standard unit of conversion
[tex]1ft = \frac{1}{3} yd[/tex]
Multiply both sides by L:
[tex]L \times 1ft = L \times \frac{1}{3} yd[/tex]
[tex]L\ ft = \frac{L}{3} yd[/tex]
Hence, the length of the room in yard is L/3
(b) An expression for the length of the room in unit of 3ft
In (a), we have:
[tex]L \to[/tex] Number of feet
To calculate the length in units of 3 feet, we simply multiply L by 3
[tex]Unit = 3 \times L[/tex]
[tex]Unit = 3L[/tex]
An expression for the length of the room in unit of 3ft is 3L
(c) How many times longer the room is, than 3ft.
In (b), we have:
[tex]Unit = 3L[/tex]
The number of times (n) the room is longer than 3 ft is:
[tex]n = Unit \div 3[/tex]
[tex]n = 3L \div 3[/tex]
[tex]n = L[/tex]
The room is longer than 3 feet, in L times
Read more about dimensions at:
https://brainly.com/question/3194540
Answer:
a. L/3
B. L/3
C. L/3
Step-by-step explanation:
trust me, just answered it
The quotient of three more than a number and six is nine.
The quotient of three more than a number and six is nine.
[tex] \underline{ \boxed{ \large{ \sf{ \frac{(3 + n)}{6} = 9}}}}[/tex]
The value of the unknown number is 51
From the given statement we can form the following equations;
let the unknown number = x
Three more than a number:
= 3 + x
The quotient of three more than a number and six:
[tex]= \frac{x+ 3}{6}[/tex]
The result of this division is 9;
[tex]\frac{x+ 3}{6} = 9[/tex]
The value of this unknown number is calculated as;
[tex]\frac{x+ 3}{6} = 9\\\\x+3 = 54\\\\x = 54 - 3\\\\x = 51[/tex]
Thus, the value of the unknown number is 51
Learn more here: https://brainly.com/question/603134
in 5abc what is the number of term
Answer:
5
Step by step explaination
Find the quotient. Write the remainder as a decimal.
Answer:
1. 2.8 2. 1.24 3. 1.75 4. 2.375
Step-by-step explanation:
brainliest pls
POINTS!!!!!!!!!!!!!!!!!!!!!!!!!!HELP!!!!!!!!!!!!!plz...........
[tex](\frac{2^5}{3^2})^4=\frac{2^{5\cdot4}}{3^{2\cdot4}}=\frac{2^{20}}{3^8}\\\\\text{Answer: A)}[/tex]
16. -4x+3x=2
Please help
Answer:
x= -2
-------
7
Step-by-step explanation:
<1. combine like terms.>
<2.divide both sides of the equation by same terms.>
<3.Simplify.>: then Answer while come x= -2
------
7
Pls help I need this by tonight :)
Answer:
1. 6- (-3)
= 9°C
2. 7-(-7)
=14°C
3.-5-(-1)
= 4°C
4. 5-(-2)
=7°C
5. 130 - (-110)
=240°C
12 subtracted from a negative number is 16. Write as an equation
Step-by-step explanation:
(-x)-12=16
-x=28
x=28
plss mark brainliestttt
If a ramp has a slope less than 1 but greater than 0, is it steeper than a ramp with a slope of 1
No the larger the number the steeper the slope. 1 would be a steeper slope than a number less than 1.
The accompanying bar graph shows the percentage of adults in a certain city who smoked cigarettes for selected years from 1970 through 2010.
The mathematical model p + x/2 = 33 describes the percentage, p, of adults who smoked cigarettes x years after 1970. Use this information to answer questions (a) and (b) below.
Does the mathematical model underestimate or overestimate the percentage of adults who smoked cigarettes in 2010? By how much? Select the correct choice below and fill in the corresponding answer box to complete your choice.
Using function concepts, we have that:
The actual percentage of smokers in 2010 was of 23%, while the estimated was of 13%, thus, the model underestimated the percentage by 10%.
-----------------------------
The function is:
[tex]p + \frac{x}{2} = 33[/tex]
In which
p is the percentage of smokers.x is the number of years after 1970.The percentage can be written as a function of the number of years, that is:
[tex]p(x) = 33 - \frac{x}{2}[/tex]
-----------------------------
2010 is 2010 - 1970 = 40 years after 1970, thus, the estimate of the percentage in 2010 is:
[tex]p(40) = 33 - \frac{40}{2} = 33 - 20 = 13[/tex]
The actual percentage of smokers in 2010 was of 23%, while the estimated was of 13%, thus, the model underestimated the percentage by 10%.
A similar problem is given at https://brainly.com/question/24481455
