Answer:
170
Step-by-step explanation:
2{5[7+4(8) -22]}
2{5[7+32 - 22]}
2{5[39 - 22]}
2{5[17]}
2{85}
170
If f(x) = x2 - 2x, find:
f(6) = [?]
Answer:
f(6) = 24
Step-by-step explanation:
f(x) = x^2 - 2x
Let x = 6
f(6) = 6^2 - 2(6)
= 36 - 12
= 24
[tex]\text{Plug in 6 to x:}\\\\f(6) = (6)^2-2(6)\\\\\text{Solve:}\\\\f(6) = (6)^2-2(6)\\\\f(6) = 36-2(6)\\\\f(6) = 36-12\\\\\boxed{f(6)=24}[/tex]
please look at the image provided.
So the value of X is 3.
look at the attached picture
Hope it will help you
Good luck on your assignment
Answer:
[tex]x = 3[/tex]
hope this helps
brainliest appreciated
good luck! have a nice day!
56. If 6 men plough a field in 10 hours, how many hours will it take 4 men to do the same work? (Assuming they are
working at the same rate).
A 8 B. 15 C. 20 D. 25 E. 27
Answer:
15 hours, or B
Step-by-step explanation:
6 men - 10
12 men - 5
4 men - 15
Please mark as brainliest
Answer:
15 hours
Step-by-step explanation:
10/6 ≈ 3.7
4 * 3.7 = 14.8
-round it up-
14.8 ≈ 15
The system of equations
(xy)/(x+y)=1, (xz)/(x+z)=2, (yz)/(y+z)=3 has exactly one solution. What is $z$ in this solution?
Answer:
z = -12
Step-by-step explanation:
Rewritting the equations, we have:
x + y = xy (eq1)
2x + 2z = xz (eq2)
3y + 3z = yz (eq3)
From the first equation:
x = y/(y-1) (eq4)
From the third equation:
y = 3z/(z - 3) (eq5)
Using the value of y from (eq5) in (eq4), we have:
x = [3z/(z - 3)] / [3z/(z - 3) - 1]
x = [3z/(z - 3)] / [(3z - z + 3)/(z - 3)]
x = 3z / (2z + 3) (eq6)
Using the value of x from (eq6) in (eq2), we have:
6z / (2z + 3) + 2z = (3z / (2z + 3))*z
(6z + 4z^2 + 6z) / (2z + 3) = 3z^2 / (2z + 3)
12z + 4z^2 = 3z^2
z^2 = -12z
z = -12
answer both, please. and explain
Answer:
4. [tex]\frac{13}{23}[/tex]
5. [tex]\frac{4}{7}[/tex]
Step-by-step explanation:
4. The relative frequency is how often it happens divided by the whole number of outcomes.
In this case it would be [tex]\frac{13}{23}[/tex]
5. Find the relative frequency again:
[tex]\frac{12}{28}=\frac{4}{7}[/tex]
What is the name of the relationship between ∠1 and ∠4?
alternate exterior angles
adjacent angles
corresponding angles
alternate interior angles
Answer:
they are corresponding angles
Step-by-step explanation:
Two buses are moving towards each other, one at a speed of 40 mph and the other at a speed of 50 mph. How much closer to each other will they be in two hours?
Answer:
180 miles
Step-by-step explanation:
The are moving towards each other at 50 mph and 40 mph which is the same as 90 mph. They are moving 90 mph closer to each other every hour so in 2 hours it would be 180 miles.
If $3,000 is deposited at the end of every six months into an account that earns 10% semiannually, find the amount after 10 years.
Answer:
7959.83
Step-by-step explanation:
A = P ( 1+r/n)^ nt
Where A is the amount in the account
P is the principal
r is the rate
n is the number of compoundings per year
t is the years
A =3000 ( 1+.10/2)^ 2*10
A =3000 ( 1+.05)^ 20
=7959.83
Answer:
$66,000
Step-by-step explanation:
if they earn 6,000 every year and another $600 through interest, add 6,000 + 600 = 6,600 x 10 = $66,000.
Will mark brainliest for the answers. the 'try this' question.
Answer:
6%
Step-by-step explanation:
you do 2,700/45,000 to get .06
multiply by a 100 to get the percent
Angles L and M are supplementary. If m ∠ L = (x+2)° and m ∠ M = (x-6)°. What is the value of x?
The value of X is 92.
please see the attached picture for full solution
Hope it helps
In circle o, diameter ADB and chord AC are drawn. Find the measure of arc BC. Please help
Answer:
Arc BC is 64°
Step-by-step explanation:
The parameters given are;
∠CAB = 32°
We note that the measure of arc BC = ∠CDB
∠DCA = ∠CAB = 32° (Base angles of an isosceles triangle)
∠ACB = 90° (Angle subtended at the center = Twice angle subtended at the circumference)
∠ACB = ∠DCB + ∠DCA
∴ ∠DCB = ∠ACB - ∠DCA = 90° - 32° = 58°
∠DBC = ∠DCB = 58° (Base angles of an isosceles triangle)
∴ ∠CDB + ∠DBC + ∠DCB = 180° (Sum of interior angles of a triangle)
∠CDB = 180° - (∠DBC + ∠DCB) = 180° - (58° + 58°) = 64°
∠CDB = Arc BC = 64°
Please help me with this question
Find the product of (6-10i) and it’s conjugate.
Product = ?
FYI: the answer is not 6-10i or 6+10i
Answer:
136
Step-by-step explanation:
(6-10i)(6+10i)
36 +60i - 60i - 100i²
36 - 100i² (i² = -1)
36 + 100
136
Answer: 136
Step-by-step explanation:
First, we need to find the conjugate before we can find the product of the conjugate and 6-10i.
The conjugate is the binomial with an opposite sign.
6+10i
Now that we have our conjugate, we can find the product.
(6-10i)(6+10i) [distribute the factors, FOIL method]
36+60i-60i-100i² [combine like terms]
36-100i² [i²=-1]
36-100(-1) [multiply and subtract]
36+100=136
Our product is 136.
Which statement is true about the green,orange,and gray triangles show in the textile pattern below?
A. They are congruent obtuse triangle
B. They are congruent right triangle
C. They are acute right triangle
D. They are similar right triangle
Answer:
b
Step-by-step explanation:
the triangles are all the same so they are congruent. They are also right triangles so they must be a right triangle the only answer that combine this is b
The green, orange and gray triangles are congruent and right triangles. Thus option B is correct.
What are congruent triangles and right triangle?Two triangles are congruent triangles if they are of same size and shape.
Right triangle is a triangle with one of angle 90°.
The given triangles of green, orange and gray triangles are of same shape and size . Therefore we can say that they are congruent triangles
Also we can see that they all have right angle on the left corner therefore they are right triangles . If they are right triangles then they will be also acute triangles too as the some of other two angles of each triangle will be 90 it means they both are less than 90 and congruent means they are similar too as similar triangles have same shape.
Therefore the most appropriate option is Option B , that given triangles are congruent right triangles.
Also, Learn more about the congruent triangles from the given below link:
https://brainly.com/question/22062407
#SPJ5
Amanda is running a mile in gym class. She runs at a pace of 5 minutes per mile. What's the dependent variable in the situation?
How many solutions does the following system of equations have?
2y= 5x+4
y= 3x+2
Α. Two
B. One
C. Zero
D. Infinitely many
Answer:
B. One
Step-by-step explanation:
The lines have different slopes, so they must intersect at exactly one point.
There is One solution to this system.
_____
If you solve the first equation for y, you get ...
y = (5/2)x +2
This has a different slope (x-coefficient) than the second equation does, but it has the same y-intercept. That y-intercept is the point of intersection of the lines, hence the solution: (x, y) = (0, 2).
PLZ HURRY ILL GIVE BRAINLIEST
Simplify. 6(5p^3 − 6p)
ALSO, HOW WAS YOUR DAY?
Answer:
p = {0, -1.095445115, 1.095445115}Step-by-step explanation:
Answer:
30p^3-36p. Also, my day was niceeeee.
Step-by-step explanation:
To simplify this, we have to use the distributive property. First, you do 6 times 5p^3, and then you get 30p^3. Then you do 6 times 6p, which gives you 36p. So, the final answer would be 30p^3-36p.
Line CD contains points A (4, −7) and B (4, 8). The slope of line CD is
Answer:
Undefined
Step-by-step explanation:
Slope of CD
[tex] = \frac{8 - ( - 7)}{4 - 4} = \frac{8 + 7}{0} = \infty \\ [/tex]
Hence, Slope of CD is undefined.
which inequality matches the graph?
Solve by taking the square root of both sides.
3 (x +3)^2 – 81 = 0
a. X = -3 -3 sqrt 3 or -3 + 3 sqrt 3 c. 3 sqrt 3 or 3 + 3 sqrt 3
b. X = -3 -6 sqrt 3 or -3 + 6 sqrt 3 d. 3 sqrt 3 or -3 + 3 sqrt 3
Answer:
a
Step-by-step explanation:
Given
3(x + 3)² - 81 = 0 ( add 81 to both sides )
3(x + 3)² = 81 ( divide both sides by 3 )
(x + 3)² = 27 ( take the square root of both sides )
x + 3 = ± [tex]\sqrt{27}[/tex] = ± 3[tex]\sqrt{3}[/tex] ( subtract 3 from both sides )
x = - 3 ± 3[tex]\sqrt{3}[/tex]
x = - 3 - 3[tex]\sqrt{3}[/tex] or x = - 3 + 3[tex]\sqrt{3}[/tex] → a
Answer:
a
Step-by-step explanation:
Calculate the sum of the first 50 terms in the sequence.
18, 21, 24, 27, ...
Answer:
hope this is correct
The sum of the first 50 terms in the sequence 18, 21, 24, 27, ... is 4575.
What is the sum of the sequence?The sum of the sequence can be calculated by the formula
[tex]S_n = n/2(2a +(n-1)d)[/tex]
where a is the first term, d is the common difference
To find the sum of the first 50 terms in the sequences: 18, 21, 24, 27, ...
[tex]S_n = n/2(2a +(n-1)d)[/tex]
here, a = 18
d = 21 - 18 = 3
n = 50
[tex]S_{50} = 50/2(2(18) +(50-1)3)\\S_{50} = 25(36+147)\\S_{50} = 4575[/tex]
Thus, the sum of the first 50 terms in the sequence is 4575.
Learn more about sequence ;
https://brainly.com/question/21961097
Mrs. Sloane has $500 to buy a video game console and some video games for her family. Including tax, the video game console costs $280, and a video game costs $25.
*please help asap!!! kind of being timed here:(
-must haves:)…
right answer.
step-by-step.
makes sense.
^ I will mark someone the brainiest if they help me :)
Answer:
1 console and 8 games because
Step-by-step explanation:
one console cost 280 and each game costs 25 so do 500-280=220 so, u have 220 dollars left basically. 220/25=8.8 so 8 games u can buy and the tax will be $20 because 0.8 * 25 = 20 so theres ur tax and u have to answer my question
The maximum number of video games Mrs. Sloane can buy is,
⇒ 8
What is Inequality?A relation by which we can compare two or more mathematical expression is called an inequality.
Given that;
Mrs. Sloane has $500 to buy a video game console and some video games for her family.
And, Including tax, the video game console costs $280, and a video game costs $25.
Now, Let the maximum number of video games = x
Hence, We can formulate;
⇒ 25x + 280 ≤ 500
⇒ 25x ≤ 500 - 280
⇒ 25x ≤ 220
⇒ x ≤ 8.8
Hence, The maximum number of video games Mrs. Sloane can buy is,
⇒ 8
Learn more about the inequality visit:
https://brainly.com/question/25944814
#SPJ6
Complete question is this,
Mrs. Sloane has $500 to buy a video game console and some video games for her family. Including tax, the video game console costs $280, and a video game costs $25. Drag and drop three numbers and one inequality symbol to show the inequality that can be used to determine the maximum number of video games, x, Mrs. Sloane can buy?
Overestimate the grocery bill with items that cost: $8.56, $5.34, $34.25, and $6.80.
A. $55.00
B. $57.00
Answer:
B. $57.00
Step-by-step explanation:
The totals add up to just under $55.00, so an overestimate would be $57.00
I WILL MAKE BRAINLIEST AND 30pts. FAST AND HELP ME
Answer:
3rd,5th,6th
Step-by-step explanation:
complementary angles has 90 degree angles and 5x+40 = 5x10+40 = 50+40 = 90 and adjacent angles are angles that add up to a complementary or supplementary angle and do not overlap.
Hope this helps!
Answer:
Step-by-step explanation:
3rd option
x=10
angle ABD + angle DBC = 90
ie 5x + 40= 90
5x=90-40
5x=50
x=10
5th option
both are complementary angles
as they are sum is 90 degree
hope this helps you and dont forget to make me as the brainliest......
Ramp Learning
Consider the expression 2(−2y+8).
Identify the equivalent expression below that demonstrates distributive property.
Which of the following represents 1% of 300
•1
•3
•3/100
•30
Answer:
it's •3
Step-by-step explanation:
1/100 × 300/1 =3
100 into 300 is 3
then equal to 3/1
any number over one is it self
Which matrix represents the system of equations shown below?
8x-3y = 9
2x + 5y = -7
Answer:
The correct answer is D.
Step-by-step explanation:
hope it works out !!
Answer:
its A
Step-by-step explanation:
i just did it
A boy sent a telegram which contains 36 words to his mother if the first 12 words cost $20 and each additional word cost 2$ per word how much did he pay ?
Answer:
(d) 60 kobo
Step-by-step explanation:
36 divided by 12 = 3
3 x 20 = 60
Hope this helps!
What is the measure
Step-by-step explanation:
73+x=90 (right angled triangle)
x=90-73
x=17
Help!!due today help as quickly plz
Answer:
Step-by-step explanation:
The answer will be
2/16 + 5/8 = 3/4
In a group of 60 students, 18 students take Algebra I, 20 students take
Algebra II, and 10 students take both subjects. How many students don't take
either of these subjects?
A. 34
B. 36
C. 32
D. 12
Answer
D (12)
Step-by-step explanation:
60-20=40
40-18=22
22-10=12
