Answer:
Solution:
(4x2 - 2x) - (-5x2 - 8x)
= 4x2 - 2x + 5x2 + 8x.
= 4x2 + 5x2 - 2x + 8x.
= 9x2 + 6x.
= 3x(3x + 2).
Answer: 3x(3x + 2)
i need help finding the answer for 5(3x2 + 9x) – 14
Answer:
15x2 + 45x - 14
Step-by-step explanation:
Equation at the end of step 1
(5 • (3x2 + 9x)) - 14
STEP 2:
STEP 3 :
Pulling out like terms
3.1 Pull out like factors :
3x2 + 9x = 3x • (x + 3)
Equation at the end of step 3 :
15x • (x + 3) - 14
STEP 4 :
Trying to factor by splitting the middle term
4.1 Factoring 15x2+45x-14
The first term is, 15x2 its coefficient is 15 .
The middle term is, +45x its coefficient is 45 .
The last term, "the constant", is -14
You pick a card at random. Without putting the first card back, you pick a second card at random. Card numbers are 2, 3, 4, and 5 What is the probability of picking a 2 and then picking a number greater than 3? (Write your answer as a fraction or whole number.)
Answer:
1/6
Step-by-step explanation:
When trying to calculate the probability of a sequence of events you need to multiply the probability of the first event happening by the probability of the second event happening. There are a total of 4 numbers (2,3,4,5) and only one is a 2. Therefore the probability of the first pick being a 2 is 1/4. Now there are only 3 cards left (3,4,5) and only 2 numbers are greater than 3 so the probability of picking one of these cards is 2/3. Now that we have both of these probabilities we simply multiply them together.
1/4 * 2/3 = 2/12 or 1/6
Therefore, the probability of picking a 2 and then picking a number greater than 3 is 1/6
Select the choice that has like terms.
1. 4y, 4xy, 4x
2. 6x, 1/2x, -5x
3. 10, 9, -1x
4. 3x, 3x^2, 3x^3
Manuel wants to earn at least $44 trimming trees. He charges $6 per hour and pays $4 in equipment fees. What are the possible numbers of hours Manuel could trim trees? Use (t) for the number of hours. Write your answer as an inequality solved for (t).
Given:
Manuel wants to earn at least $44 trimming trees.
He charges $6 per hour and pays $4 in equipment fees.
To find:
The possible numbers of hours Manuel could trim trees.
Solution:
Let t be the numbers of hours Manuel could trim trees.
Earnings of Manuel in one hour = $6
Earnings of Manuel in t hour = $6t
He pays $4 in equipment fees. So, we will subtract this from the income.
[tex]\text{Total earnings}=6t-4[/tex]
Manuel wants to earn at least $44 trimming trees. It means, total earnings must be greater than or equal to 44.
[tex]6t-4\geq 44[/tex]
[tex]6t\geq 44+4[/tex]
[tex]6t\geq 48[/tex]
Divide both sides by 6.
[tex]t\geq \dfrac{48}{6}[/tex]
[tex]t\geq 8[/tex]
Therefore, the required number of hours must be greater than or equal to 8 hours.
Point: (3,−4)
m: −1
Equation:
plz answer i need the equation will mark brailest answer in 1 hour
.................... :)) equation->>> y=-1-4
Answer: y = -7
Step-by-step explanation:
y = mx + b
y = -1(3) + -4
y = -3 - 4
y = -7
Mrs. Bach bought a used car for her son. She borrowed $8000 from Acme Auto at an interest rate of 8% for three years. What will be the total cost of the loan including the amout of interest that will need to be paid back to Acme Auto? A) $1,920 B) $9,920 C) $640 D) 8,640 a A b B c C d D
Answer:
d
Step-by-step explanation:
what is the power of x in this equation 2x + 9 = 21?
a.2
b.6
c.9
d.15
Answer:
X = 6
Step-by-step explanation:
Answer:
b. 6
Step-by-step explanation:
2x + 9 = 21
then you subtract 9 from each side
2x = 12
then you divide 2 from each side
x = 6
Hope this helps dude ! ^-^
In 12.86 which digit is in the hundredths place?
Answer:
6.
Step-by-step explanation:
Answer: The 6, in 12.86, is in the hundredths place.
Hope this helps!
We should know that 8 = 2. To see how this is equivalent to 8% = 2 we can solve the equation 8" - 2. To
do this, we can rewrite the equation as:
(2")" = 2
How can we now use this equation to see that 8 1/3=2
9514 1404 393
Answer:
show n = 1/3rewrite (2^3)^n as 8^(1/3)Step-by-step explanation:
By the rules of exponents, ...
(a^b)^c = a^(bc)
__
(2^3)^n = 2^1 . . . . . given
2^(3n) = 2^1 . . . . . . rule of exponents
3n = 1 . . . . . . . . . . . equate exponents
n = 1/3 . . . . . . . . . . divide by 3
Recognize that 2^3 = 8, and 2^1 = 2, then substitute into the given equation:
8^(1/3) = 2
mark is eating holiday rolls very quickly at 7 rolls per minute.He says he will eat 77 rolls in 12 minutes. is mark correct? if not what should the correct answer be?
Answer:No he is incorrect the correct answer would be 11
Step-by-step explanation: It would be 11 because since he eats 7 rolls per minute it would be like 7x1 so 7x11=77 and 11 would be the minutes.
What is the slope of the line?
Answer:
up 1 over 3
Step-by-step explanation:
A student has a business selling snowballs during the summer. For each snowball the student sells, they makes a profit of $1.50. On the hottest day of the summer, the student sold 125 snowballs and made a profit of $187.50. Create a model in point slope form to represent the profit the student makes, y, based on the number of snowballs sold, x. Use mathematics to justify your answer.
Answer:
y = $1.25x
Step-by-step explanation:
Given that :
Profit made per sale = $1.50
Number of sales made on hottest day of summer = 125 ; Profit made = $187. 50
Let profit Made = y
Number of snowballs sold = x
Profit made = profit made per snowball sold * Number of snowballs sold
y = $1.25x
$187.50 = $1.25(125)
The population of a town was 25,000 people. Then 3,200 people moved away. What was the percent of decrease?
Group of answer choices
Answer:
12.8%
Step-by-step explanation:
25000 - 3200 = 21800
21800/25000 = 87.2%
100 - 87.2 = 12.8
12.8%
Samuel is 4 1/6 feet tall. His dad is 5 3/4 feet tall.How much taller is Samuels dad then Samuel
Answer:
1 7/12
Step-by-step explanation:
Just subtract the fractions if you cant do it by head or paper use a calc so 5 3/4 - 4 1/6= 1 7/12 samuels dad is 1 7/12 taller than samuel.
Answer:
Step-by-step explanation:
idj
‼️GIVING BRAINILEST AND PLEASE DONT SCAM‼️
Janet wants to hire a catering company. The total cost includes a catering fee
(initial value) plus a charge for each attendee at the event (rate of change). The
total costs for three catering companies are summarized below. Use this
information for Questions 6 to 8.
Vector u has initial point at (6, 8) and terminal point at (3, –2). Vector v has initial point at (–4, –3) and terminal point at (1, –7).
What is u – v in component form?
⟨-8, -6⟩
⟨-2, -6⟩
⟨8, 6⟩
⟨12, 16⟩
Answer:
The answer is A. (-8,-6)
Step-by-step explanation:
I had guessed on my quiz and somehow got it right lol
u – v in component form and is (-8,-6).
We have given that,
Vector u has initial point at (6, 8) and a terminal point at (3, –2).
Vector v has initial point at (–4, –3) and a terminal point at (1, –7).
What is the component form?The component form of a vector is the ordered pair that describes the changes in the x- and y-values.
u – v in component form and is (-8,-6).
To learn more about the component form visit:
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Which statement illustrates the distributive property?
Answer:
3(4+5) = 3(4) + 3(5)
Step-by-step explanation:
in distributive property, you multiply the number outside the parenthesis by both of the numbers inside, but still keeping the sign the same.
Answer:
b
Step-by-step explanation:
A train from Chicago to
Cleveland is traveling
280 miles in 3.5 hours.
How many miles per
hour is the train
traveling?
Answer:
80 miles per hour
What is the volume of a sphere with a diameter of 32.5 m, rounded to
the nearest tenth of a cubic meter? (PLEASE ROUND)
Answer:
Step-by-step explanation:
Givens: d = 32.5 m
Formula: V = 4/3 pi r^3
Solution
r = d/2
r = 32.5/2
r = 16.25
V = 4/3 * 3.14 * (16.25)^3
V = 17965.05 to the nearest tenth is
V = 17965.1
Answer:
≈17974.2 m
Step-by-step explanation:
\text{Volume of a Sphere:}
Volume of a Sphere:
V=\frac{4}{3}\pi r^3
V=
3
4
πr
3
\text{radius} = \frac{\text{diameter}}{2} = \frac{32.5}{2}=16.25
radius=
2
diameter
=
2
32.5
=16.25
meters
\text{Plug in:}
Plug in:
\frac{4}{3}\pi (16.25)^3
3
4
π(16.25)
3
17974.1642186
17974.1642186
Use calculator
\approx 17974.2\text{ m}^3
≈17974.2 m
3
Round to the nearest tenth
help will mark brainlist owo
Answer:
[tex] \sqrt{50 } \times \sqrt{4} [/tex]
The weight of laboratory grasshoppers follows a Normal distribution, with a mean of 90 grams and a standard deviation of 2 grams. What percentage of the grasshoppers weigh between 86 grams and 94 grams?
A. 99.7%
B. 95%
C. 68%
D. 47.5%
E. 34%
Answer:
95%
Step-by-step explanation:
Do the math it's pretty easy.
When the weight of laboratory grasshoppers follows a normal distribution, with a mean of 90 grams and a standard deviation of 2 grams, 95% of grasshoppers weigh between 86 and 94 grams.
What is normal distribution?Normal distribution, also known as the Gaussian distribution, is a probability distribution that is symmetric about the mean, showing that data near the mean are more frequent in occurrence than data far from the mean.
Let W be the sample of weight of laboratory grasshoppers.
W follows N(90, 2)
To calculate P(86 < W < 94)
[tex]P ( 86 < W < 94 ) \\\\P ( \frac{86 - 90}{2} < \frac{W - 90}{2} < \frac{94 - 90}{2} )\\\\P(-2 < Z < 2)\\[/tex]
= 95% (approximately)
(using excel function NORM.S.DIST(2,TRUE)-NORM.S.DIST(-2,TRUE))
Learn more about normal distribution here
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Line M passes through the points (–5, 9) and (–1, 9). A coordinate plane. Which is true of line M? Line M is a vertical line with an undefined slope. Line M is a vertical line with a slope of zero. Line M is a horizontal line with an undefined slope. Line M is a horizontal line with a slope of zero.
Answer:
Option 4, Line M is a horizontal line with a slope of zero
Step-by-step explanation:
which friend is correct? Tyson or Tyra and why?
Answer:
The correct one is Tyson
Step-by-step explanation:
Because dealership B slope is lower than dealership A so that means, dealership A pays a higher commission than dealership B
Graph y= -2x + 5.
I don’t get this
Answer:
Step-by-step explanation:
Answer:
weewoo
Step-by-step explanation:
Use the simple interest formula. $5000 at 5% for 2 years. Find the amount of interest and the total amount (principal + interest)
Answer:
interest = $500, total amount = $5500
Sorry about the other person
Hope this helps!
Please help this is due today and I’m so stressed!I will mark Branliest!!!
Tanya performs two transformations on ABC to form A"B"C" as shown on the coordinate grid below.
True or False:ABC is similar to A”B”C”?
Clara and Toby are telemarketers. Yesterday, Clara reached 4 people in 10 phone calls, while Toby reached 3 people in 8 phone calls. If they continue at those rates, who will reach more people in 40 phone calls?
Answer:
clara will reach more than toby
Solve for X and Solve for Y please help due in the morning
Little bit of help 15 points!
Answer:
Step-by-step explanation:
it is a
A) Unlimited movie rentals from a video store costing $19 a month
B) Unlimited movie rentals from an online store costing $1.50 per movie
For this problem, assume that you rent an average of 10 movies a month.
Answer:
Store=$190 for 10 movies a month
Online=$15 for 10 movies a month
Step-by-step explanation:
times price by number of movies
