Answer:
x = - 4
Step-by-step explanation:
Hi there !
if f(x) = 2x + 7 and f(x) = -1 =>
2x + 7 = - 1
2x = - 1 - 7
2x = - 8
x = - 8 ÷ 2
x = - 4
Good luck !
At the sixth-grade school dance, there are 132 boys, 89 girls, and 14 adults.
A. Write the ratio of the number of boys to the number of girls.
B. Write the same ratio using another form (A: B vs. A to B).
C. Write the ratio of the number of boys to the number of adults.
D. Write the same ratio doing another form. (I’m only 11 so I’m in sixth grade)
a. 132:89
b.132 to 89
c.132:14
b. 132 to 14
PLEASE ANSWER, I WILL MARK BRIANLEST
Pythagorean triples are specific combinations that occur frequently in right triangles and use only whole numbers. An example of a Pythagorean triple is __________.
Group of answer choices
3, 4, 5
8, 9, 10
5.5, 12.5, 13.5
7, 22, 25
Answer:
Answer is 3,4,5
I better see the brainliest now.
Answer:
A. 3,4,5Step-by-step explanation:
you can check each choices by using the Pythagorean theorem
√(3² + 4² ) = 5√(8² + 9² ) ≠ 10 -------- x
√(5.5² + 12.5² ) ≠ 13.5 -------- x
√(7² + 22² ) ≠ 25 -------- x
solve this
- 7x - ( - 15y) - ( - 2x) + ( - 6y)
Answer:
-7x+15y+2x-6y
-5x+9y
Step-by-step explanation:
Answer:
-7x - ( -15y ) - ( - 2x) + ( -6y )
=> -7x + 15y + 2x - 6y
=> ( -7x + 2x ) + (15y - 6y)
=> -5x + 9y
If my answer helped, kindly mark me as the brainliest!!
Thanks!!
Abbys mother is making treat bags for the 30 students in abbys class. She purchased bags at 5 for 1 candy bars at 10 for 0.50 and whistles at 3 for 0.75. If she puts 1 candy bar and 1 whistle I’m each bag how much will Abbys mother spend not including tax?
Answer:
Abby's mother spent $9.75 for the classroom not including tax.
Step-by-step explanation:
Know:
5 bags for 1 dollar
10 candy bars for 50 cents
3 whistles for 75 cents
5×6=30
10×3=30
3×10=30
5 times 6 is thirty. So find the product of 6 and 1 which is 6. 6 is the overall cost of bags.10 times 3 is 30. So find the product of 3 and .50 which is 1.50. 1.50 dollars is the overall cost of candy bars.3 times 10 is 30. You then find the product of 3 and .75. The product of this is 2.25 which is the total cost of whistles.Next you add all the values together which are 6.00 + 1.50 + 2.25 this equals $9.75Graph the line y=−3x+b if it is known that the graph goes through point:
A(−2, 4)
B(5, 2)
I WILL AWARD BRAINLIEST I’ve asked this for days so plz help
Answer:
А(0/6;-2) и B(-5.6;17)
Step-by-step explanation:
(-2;4) поставь координаты место (x;y)
Например: 4=-3*(-2)+b, найдите b, а затем нарисуйте график.
Я отправила вам фото. Там всё написано и график тоже
Divide the following and round to the nearest hundredth: 0.8931/3
what fraction is equal to 6
The fraction that is equal to 6 can be some of the following:
[tex]\mathbf{\dfrac{6}{1} \ ; \dfrac{12}{2} \ ; \dfrac{18}{3} \ ; \ \dfrac{24}{4}\ ; \ \dfrac{36}{6} }[/tex]
A fraction usually comprises a numerator and a denominator separated by a division line.
The factors of a given number are the numbers that can be divided in such a given number without a remainder.
From the given example, we are to determine the factors of 6, so we will think about a number that can be divided by 6 without leaving any remainder.
These numbers are:
1, 2, 3, 6, 12, 18, 24, 36From these numbers, we can pick two factors that when divided together, we get 6 as our result and without any remainder.
i.e.
The fraction that is equal to 6 are:
[tex]\mathbf{\dfrac{6}{1} \ ; \dfrac{12}{2} \ ; \dfrac{18}{3} \ ; \ \dfrac{24}{4}\ ; \ \dfrac{36}{6} }[/tex]
Learn more about fractions here:
https://brainly.com/question/6201432?referrer=searchResults
what's the answer? please help
Answer:
C. 35
Step-by-step explanation:
I just went through all the numbers, multiplied them by 2, because you start with x which is 50, and the goal is to get to 120 with 50 and a number multiplied by two, so I tried 35 which would be 70 when multiplied by two, then added 50, which would make 120.
PLEASE ANSWER STEP BY STEP
TRAVEL On a map of Texas, the distance between Dallas and Houston is 4.8 inches. If 1 inch = 50 miles, what is the distance between the two cities?
Multiple choice question.
A)
96 miles
B)
104 miles
C)
240 miles
D)
250 miles
The distance between the two cities Dallas and Houston is 240 miles
What is an equation?An equation is an expression that shows the relationship between two or more numbers and variables.
An independent variable is a variable that does not depends on other variable while a dependent variable is a variable that depends on other variable.
Given that:
1 inch = 50 miles
Hence:
4.8 inches = 4.8 inch * 50 miles per inch = 240 miles
The distance between the two cities Dallas and Houston is 240 miles
Find out more on equation at: brainly.com/question/2972832
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True or false to find the percent of a number we convert to a fraction or a decimal and then divide the number
true, when you convert to a decimal, you add a zero in the variable
What is the leading coefficient of the following polynomial?
5x2-3x+6
Answer:
The 3
Step-by-step explanation:
if freya makes 2 of her 5 free throws in a basketball game what is her free throw shooting percentage ?
a. 20%
b. 40%
c. 80%
d. 90%
Answer:
40
Step-by-step explanation:
100 /5 = 20
20*2= 40
40%
A box of books has 12 fiction and 14 nonfiction books in it. Determine the odds in favor of you selecting a fiction book from the box.
Answer:
Odds in favor(Fiction book) = 6 / 13
Step-by-step explanation:
Given:
Number of fiction books = 12
Number of non-fiction books = 14
Find:
Odds in favor(Fiction book)
Computation:
Odds in favor(Fiction book) = Number of fiction books / Total books
Odds in favor(Fiction book) = 12 / (12+14)
Odds in favor(Fiction book) = 12 / 26
Odds in favor(Fiction book) = 6 / 13
For every line there can exist a coplanar parallel line. true or false?
Answer:
T
Step-by-step explanation:
Celia writes the addition problem shown.she says she can tell which sum will be greater without adding.how does she know?
The sum of 5157 + 519 will be greater because she knows that 519 > 364.
What is summation?A summation, also abbreviated as a sum, is the outcome of adding two or more numbers or quantities. Here are always an integer number of terms in a summation. There could be only two terms, but there could be one hundred, thousand, or a million. There are summations with an infinite set of parameters.
In another word, the summation is to add or subtract any two or more terms by doing that operation we will get a new result which could be big or small depending upon the number.
Let's say two sum
x + y and x + z
If we want to calculate which is bigger then we need to look to y and z since x is common in both.
If y > z then x + y will be bigger and if z > y then x + z will be bigger.
Given the sum,
8157 + 364 and 8157 + 519
Now since 519 > 364 so (8157 + 519 ) > (8157 + 364)
Hence "The sum of 5157 + 519 will be greater because she knows that 519 > 364".
For more information about summation,
brainly.com/question/10777222
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The given question doesn't have a numeric value, The numeric values are
8157 + 364 and 8157 + 519
Can someone help me answer these
Answer:
question 7: irrational.
Question 8: rational.
Step-by-step explanation:
Select all polynomial expressions that are equivalent to 6x^4+4x^3-7x^2+5x+8
Complete question is;
Select all polynomial expressions that are equivalent to 6x⁴ + 4x³ – 7x² + 5x + 8.
A. 16x^(10)
B. 6x^(5) + 4x⁴ – 7x³ + 5x² + 8x
C. 6x⁴ + 4x³ - 7x² + 5x + 8
D. 8 + 5x + 7x² - 4x³ + 6x⁴
E. 8 + 5x – 7x² + 4x³ + 6x⁴
Answer:
Options C & E
C. 6x⁴ + 4x³ - 7x² + 5x + 8
E. 8 + 5x – 7x² + 4x³ + 6x⁴
Step-by-step explanation:
To find the polynomial expressions that are equivalent to 6x⁴ + 4x³ – 7x² + 5x + 8 simply means that both polynomials must have identical signs, identical number of terms and identical terms.
Now, by inspection of tall the options, we can see that options C & E are equivalent to the initially given polynomial.
For option C: 6x⁴ + 4x³ - 7x² + 5x + 8
This expression is the exact same thing as what was given in the question.
For option E: 8 + 5x – 7x² + 4x³ + 6x⁴
Rearranging this gives;
6x⁴ + 4x³ - 7x² + 5x + 8
Again this is exactly the same expression given to us in the question.
2. During typhoon Ambo, PAGASA tracks the amount of accumulating rainfall. For
the first three hours of typhoon, the rain fell at a constant rate of 25mm per
hour.
The typhoon slows down for an hour and started again at a constant rate of 20 mm
per hour for the next two hours. Write a piecewise function that models the amount
of rainfall as function of time.
Answer:
The answer is below
Step-by-step explanation:
Let t represent the time in hour and A(t) represent the amount of accumulating rainfall at time t.
In the first three hours the rain fell at a constant rate of 25mm per
hour, hence:
A(t) = 25t 0 ≤ t ≤ 3
The rain then slows down and remains constant at 75 mm [i.e. 25(3)] for an hour.
The rain increases at a rate of 20t from 4 ≤ t ≤ 6. Hence the piecewise equation is given as:
[tex]A(t)=\left \{ {{25t\ \ \ \ \ \ \ \ \ \ for\ 0\leq\ t\ \leq\ 3} \atop {75\ \ \ \ \ \ \ \ \ \ for\ 0\leq\ t\ \leq\ 6 \atop {75+20(t-4)\ \ for\ 4\ \leq\ t\ \leq\ 6}} } \right. \\\\\left[/tex]
plz help will mark brainlest if correct #7-8 plz
To test the impact performance of a 10 cm thick gymnastics mat, a 20 kg cylindrical
mass is dropped onto the mat from a height of 1 m above the mat. During the impact,
the cylinder’s vertical velocity reaches zero at the instant the mat has compressed to
only 4 cm thick.
a. How much kinetic energy does the cylinder have at the instant just before it
contacts the mat?
b. How much work does the mat do to stop the fall of the cylinder?
c. What average vertical force does the mat exert on the cylinder during the impact,
from contact until the cylinder’s vertical velocity is zero?
Answer:
A)196J
B)-208J
C)3467J
Step-by-step explanation:
We are given that a 20 kg cylindrical mass is dropped onto the mat from a height of 1 m above the mat. During the impact, the cylinder’s vertical velocity reaches zero at the instant the mat has compressed to only 4 cm thick.
So, The Mat gets compressed by : 10cm - 4 cm = 6 cm=0.06 m
a)
Using Conservations of energy
Potential energy at the top = Kinetic energy at the point before touching the surface
Kinetic energy = mgh= [tex]20 \times 9.8 \times 1 = 196 J[/tex]
b)
Work done by the mat do to stop the fall of the cylinder =[tex]-mg(h+0.06)=-20 \times 9.8(1+0.06)=-208 J[/tex]
C)
Work done=[tex]\text{Average force} \times \text{ Compression of mat}[/tex]
[tex]208=F \times 0.06[/tex]
F=3467J
Find the value of x. PLEASE HELP - test tomorrow
The answer is 62
I need to show my work.
THANK YOU!!!!!
Answer:
This is easy just like the other one you posted before
b+53+245=360
b+298=360
b=360-298
b=62
Answer:
62
Step-by-step explanation:
360 degrees is the total … You get the point.
360 degrees - 245 degrees
= 115 degrees
Now, we go onto the angle
The total measure of the angle is 115 degrees
The angle has been split into two angles. On of the angles measure is 53 degrees. To find the measure of the other angle, you have to subtract the measure of the angle that was given 53 degrees) by the total measure (115 degrees):
115 degrees - 53 degrees
= 62 degrees
Hope this helped you!
Do well on your test!!!
What number is the opposite from 6.8
A. -6.8
B. 8.6
C. 68
D. -8.6
The answer is A. -6.8
3x - 10x + 5 = 5x + 1
What is X?
Answer:
x=1/2
Step-by-step explanation:
give a verbal description of (7, ∞)
I need help PLEASE i will mark brainliest
Answer:
its b
Step-by-step explanation:
f(n)=3+4)2 find the 4 terms of the sequence
Answer:25 + 24 + 49 :)
Step-by-step explanation:
Hope this helped :)
Mrs.Baker bought some books at the book sale,including 12 paperback books.24%of all the books she got were paperbacks.how many books did Mrs.Miller buy in all
Answer:
50
Step-by-step explanation:
12books=24%of all books
12×2=24
100-24= 76
76÷2=38
38+12=50
Select three standard units of the metric system.
liter
meter
centimeter
cubic centimeter
gram
kilogram
liter, meter, and the last one is either gram or kilogram
Saige bought a slice of pizza for $2.75 and a side salad for $ 3.15.
How much did Saige spend on her lunch?
$ 0.50
$6.00
$5.90
$6.10
$2.75 + $3.15 = $5.90
C. $5.90
what is the answer for
Answer:
3: 38
4: 36
Step-by-step explanation: