Answer:
23, - 46, 57, 10, 12
Step-by-step explanation:
(a)
2x + 5 = 2(9) + 5 = 18 + 5 = 23
(b)
4x - 2 = 4(- 11) - 2 = - 44 - 2 = - 46
(c)
x² + 21 = (- 6)² + 21 = 36 + 21 = 57
(d)
[tex]\sqrt{x}[/tex] - 1 = [tex]\sqrt{121}[/tex] - 1 = 11 - 1 = 10
(e)
[tex]\frac{x}{8}[/tex] + [tex]\sqrt[3]{x}[/tex] = [tex]\frac{64}{8}[/tex] + [tex]\sqrt[3]{64}[/tex] = 8 + 4 = 12
Solve for x
x+0.15x=3.45
Answer:
thanks for the points new comer you will get use to it
show that 296 not not a perfect number
Step-by-step explanation:
in which the sum of all it's factor are twice of that no... factor of 296 =1,2,4,8,37........A rectangle has an area of 1,450.8 square inches and a base of 37.2 inches. What is the height?
Answer:
39
Step-by-step explanation:
1450.8 / 37.2 = 39
Write the slope-intercept form of the equation of the line that has slope -9 and passes
through the point (4,6).
Answer:
y = - 9x + 42
Step-by-step explanation:
The equation of a line in slope- intercept form is
y = mx + c ( m is the slope and c the y- intercept )
Here m = - 9 , then
y = - 9x + c ← is the partial equation
To find c substitute (4, 6 ) into the partial equation
6 = - 36 + c ⇒ c = 6 + 36 = 42
y = - 9x + 42 ← equation of line
Can someone help me with this question? I've been stuck on it for a while :(
Answer:
f(x) = x³ -4x² -5x +20
Step-by-step explanation:
If the function is to have rational coefficients, each complex or irrational square root must have a matching conjugate. That is, both -√5 and +√5 must be roots. If there is a root p, then there is a factor (x -p). The factored form of the minimal polynomial is ...
f(x) = (x -4)(x +√5)(x -√5)
= (x -4)(x² -5)
f(x) = x³ -4x² -5x +20
25 + 100 = ?
Can You Answer
[tex] \: [/tex]
[tex] = 125[/tex]
Step-by-step explanation:
[tex]25 + 100 = ?[/tex]
need to add these numbers so we can get the solution[tex]25 + 100 = 125[/tex]
there you go , we have a solutionhope it helps[tex] \: [/tex]
The lines represented by the equations 2y - 3x = 14 and y - 3/2x= 7 are
Answer:
00000
Step-by-step explanation:
How do you solve for x
3x^2 = -24x
[tex]3x^2 = -24x \\\\\implies 3x^2 +24x =0\\\\\implies x^2 +8x = 0\\\\\implies x(x+8) =0\\\\\implies x =0~~ \text{or}~~ x = -8[/tex]
Step-by-step explanation:
3x² = -24x
Divide through by x
3x = -24
x = -24/3
x = -8
A candy store sells 25 types of candy. Out of these 25 types, 12 contain chocolate. What percent of the candy types sold contain chocolate?
Answer:
Step-by-step explanation:
[tex]Percentage of chocolate candy = \dfrac{12}{25}*100\\\\ = 12*4\\\\[/tex]
= 48%
Andrew measured a line to be 11 inches long. If the actual length of the line is 11.4 inches, then what was the percent error of the measurement, to the nearest tenth of a percent?
Answer:
3.5
Step-by-step explanation:
Error=11.4-11=0.4
Percentage error = (0.4/11.4) × 100 = 3.5 to the nearest tenth
The percent error in estimate is 3.5%
What is error?In practical mathematics, error is the distinction between a true value and an approximation, or approximate, representation of that value. A common example in statistics is the difference between the mean of the entire population and the mean of a sample picked from that population. An example of a round-off error in numerical analysis is the difference between an irrational number's actual value and the value of rational expressions.
Given
measured value = 11 inches
actual value = 11.4 inches
percent error = ((actual value - Estimate value)/actual value)100
percent error = ((11.4 - 11)/11.4)100
percent error = 0.03508 x 100
percent error = 3.508% = 3.5%
Hence the percent error is 3.5%.
Learn more about error;
brainly.com/question/19575648
#SPJ5
write the value of (2+root3)(2-root3)
Answer: 1
Step-by-step explanation: use foil and get 4-3.
Comparing credit and debit cards
Answer:
When you use a debit card, the funds for the amount of your purchase are taken from your checking account in almost real time. When you use a credit card, the amount will be charged to your line of credit, meaning you will pay the bill at a later date, which also gives you more time to pay.
Simplify square root of negative 49.
Answer
7 i i think
Step-by-step explanation:
Rachel has 16 chocolate bars . Tracy takes 4 and asks for the remaining quarter. what would she end up with?
Answer:
Rachel ends up with 9 chocolate bars.
Step-by-step explanation:
16 - 4 = 12
quater is 1/4, so
12 / 4 = 3
12 - 3 = 9
Answer:
9 chocolate bars
Step-by-step explanation:
Rachel had 16 chocolate bars and Tracy takes (minus) 4.Now she has 12.
Tracy asks for the remaining (12) quarter. A quarter is 1/4, and a quarter of 12 is 3.
That leaves Rachel with 9, because 12 - 3 is 9.
Lisa is ordering 5 bags of cat food from Canada. Each bag has a mass of 6 kg To determine the shipping costs, Lisa needs to know the total weight in pounds. What is the weight of the cat food in pounds?
Answer:
About 66 Lb
Step-by-step explanation:
Solve each system by elimination
7x + 8y = -29
-3x -8y = 17
Use the information given in the figure to find the length SU.
If applicable, round your answer to the nearest whole number.
The lengths on the figure are not drawn accurately.
Answer:
We'll calculate ru:
RU^2 = 65^2 - 52^2
RU^2 = 1,521
RU = 39
SU^2 = 89^2 -39^2
SU^2 = 7,921 - 1,521
SU^2 = 6,400
SU = 80
Step-by-step explanation:
One-fourth of a number increased by thirteen is less than two.
Answer: x < -44
Step-by-step explanation:
alright my fellow dude gamer, i want you to know that "a number" is basically just x
so lets do this
[tex]\frac{1}{4}x + 13 < 2[/tex]
ok now we are going to solve for x, no?
[tex]\frac{1}{4}x < -11[/tex]
i just subtracted 13 from both sides
now we divide -11 by 1/4
[tex]x < -44[/tex]
MAGIC! ABSOLUTELY FANTASTIC! OH MY GOODNESS AHHHHHHH
What are the zeros of the function what are their multiplicities?
PLEASE HELP!!!!
The graph below shows the time it takes Michael to solve 30 multiplication
flash cards over 7 attempts. In which attempts did he improve by more than 8
seconds from the previous attempt? Check all that apply.
Answer:
I think it's 2 and 5
Step-by-step explanation:
I hope this helps
Answer:
4,6,2,7
Step-by-step explanation:
solve for missing side of the right triangle, round to the nearest tenth .
three friends arrive at a party. their arrival increases the number of people at the party by 20%. in total,how many are there at the party now
Answer:
12
Step-by-step explanation:
a string 27.2 meters long is cut into shorter pieces, each measuring 3.4 meters long. How many pieces were cut from the 27.2-metres string ?
Answer:
There are 8 pieces of string cut
Explanation:
27.2 ÷ 3.4 = 8
What is the area of the shaded portion of the square?
Answer:
Maybe 34cm
Sana makatulong..
you and your friends are going to the movies.You bought 5 tickets and spent 12.50 for popcorn.Your total was $80.Write and solve an equation to calculate the cost of each ticket
80=5x+12.5
We just use the equation y=mx+b. Where 80 is our Y, 5 is our slope, or m, and 12.5 is our constant, or b.
For the giggles I'll also solve the equation.
80-12.5=5x
67.5=5x
67.5 / 5 = x
13.5 = x
This means that each ticket was $13.5. Wow, that's an expensive ticket.
I hope this helps! :)
Answer:
I will answer soon aim coming
X=
A. 30
B. 70
C. 110
D. 130
Answer:
Step-by-step explanation:
the answer is D)130 hope it helps
pls help with these, at least up to finishing question 2 or Question 3b
Answer:
For question 3b the answer is no because the common difference is 4
Step-by-step explanation:
6,10,14,18,22,26,30,34
It will be 34 not 33
4.) Mr. Lakey is a taxi cab driver. He earns $5.00 hour plus tips. One week he works 40
hours, receiving $287 in tips. Find his weekly gross income.
Answer:
87
Step-by-step explanation:
earning rate (R) = $5/hr
total (T) = $287
time (t) = 40 hr
tips = T - Rt
= $287 - $5*40
$87
A humpback whale can eat 4.4 x 10^3 plankton a day during feeding season. If the feeding season lasts 120 days, find the total number of plankton a humpback would eat by the end of feeding season. Write your answer in scientific notation
Answer:
An average-sized blue whale will eat 2,000-9,000 pounds (900-4100 kg) of plankton each day during the summer feeding season in cold, arctic waters ( about 120 days).
Step-by-step explanation:
I NEED THE ANSWER ASAP. IM BEING TIMED
The following information is known about a savings account.
Time = 6 years
Interest rate = 1.9%
Principal = $850
What amount of total interest will be earned at the end of year 6?
Answer:
96.90
Step-by-step explanation:
I = PRT
T = 6
P = 850
I = 1.9% = 0.019
I = (850)(0.019)(6) = 96.90 <==