Answer:
f(12) = - 20
Step-by-step explanation:
To evaluate f(12), substitute x = 12 into f(x), that is
f(12) = - 2(12) + 4 = - 24 + 4 = - 20
The required value of function at x = 12 is f(12) = -20.
Given that,
A function is given,
f(x) = -2x + 4
The solution of the function at x = 12 is to be determined.
Functions is the relationship between sets of values. e g y=f(x), for every value of x there is its exists in set of y. x is the independent variable while Y is the dependent variable.
What is simplification?The process in mathematics to operate and interpret the function to make the function or expression simple or more understandable is called simplifying and the process is called simplification.
Here,
the given function is,
f(x) = -2x + 4
At x = 12
put x = 12 in the function
f(12) = -2 * 12 + 4
f(12) = -24 + 4
f(12) = -20
Thus, the required solution of the function at x = 12 is -20.
Learn more about function here:
brainly.com/question/21145944
#SPJ2
The formula for the area of a triangle is, 1 А A= bh Calculate the height of a triangle when A= 24 m2 and b = 8 m.
I hope this helps you
A=1/2.b.h
given Area is 24 and base is 8
24=1/2.8.h
24=4.h (divide 4 both of sides)
h=6 (height)
there is a pattern (2,4) (4,6) (6,9) (8,12) what is the 8th group
Answer:
(2,4) (4,6) (6,9) (8,12)
First bracket : Add 2
Second bracket : Add 2
Third bracket : Add 3
Fourth bracket: Add 4
This is all I know
4. Bill Watson is the Swanton Village computer technician. He earns $22.22 per hour. What is his straight-time pay for a 36-hour week?
Answer:
$799.92
Step-by-step explanation:
To find his pay, multiply the number of hours he worked by his pay per hour:
22.22(36)
= 799.92
So, his pay was $799.92
Solve for x: the quantity of x plus 20 over 2 = 3x
Answer:
x = 4
Step-by-step explanation:
For this problem, we simply need to convert the words into the left hand side of the equation and solve for x:
The quantity of implies a grouping
x plus 20 is the quantity
And we want the quantity over 2 all equal to 3x:
( x + 20 ) / 2 = 3x
( x + 20 ) = 6x
20 = 5x
4 = x
And now we can check to see if x is correct by plugging back into the equation:
( x + 20 ) / 2 = 3x
( (4) + 20 ) / 2 ?= 3(4)
( 24 ) / 2 ?= 12
12 == 12
Therefore, we have shown the value of x to be equal to 4.
Cheers.
Answer:
x+20/2=3x.
6x=x+20.
6x-x=20.
5x=20.
x=4.
5. There are 2 green blocks, 3 blue blocks, and 5 yellow blocks in a bag. What is the
likelihood that if one block is randomly chosen it will be either green or blue?
A. Unlikely
B. Likely
C. Certain
D. Equally Likely or Unlikely
Answer:
D
Step-by-step explanation:
equally likely or unlikely because it is 50%
Answer:
It is D hope this helps bud :)
Step-by-step explanation:
y
A
B
4
Analyze the pre-image ABCD. What are the vertices of
the final image if T_1,-2y = x is applied to figure
ABCD?
A"
B"(3, 2)
C"
D"
2
D
с
<
*
-2
-2
Answer:
A"(3, 0), B"(3, 2), C"(1, 1), D"(1, -1)
Step-by-step explanation:
Coordinates of A,B,C and D are,
A(2, 4), B(4, 4), C(3, 2) and D(1, 2)
Rule for the reflection over a line y = x,
(x, y) → (y, x)
Therefore, new image of ABCD will be,
A(2, 4) → A'(4, 2)
B(4, 4) → B'(4, 4)
C(3, 2) → C'(2, 3)
D(1, 2) → D'(2, 1)
Rule for translation [tex]T_{-1, -2}[/tex],
(x, y) → (x - 1, y - 2)
By this rule image of A'B'C'D' will be,
A'(4, 2) → A"(3, 0)
B'(4, 4) → B"(3, 2)
C'(2, 3) → C"(1, 1)
D'(2, 1) → D"(1, -1)
Q1. Helen can collect 240 flowers in 20 minutes. How many flowers can
she collect in 35 minutes?
Answer:
420 flowers
Step-by-step explanation:
20 minutes = 240 flowers
1 minute =240/20 flowers
35 minutes = (240*35)/20 flowers
The answer is 420 flowers.
━━━━━━━━━━━━━━━ ♡ ━━━━━━━━━━━━━━━
Helen can collect 240 flowers in 20 minutes.
You need to find the number of flowers she can collect in 35 minutes.
━━━━━━━━━━━━━━━ ♡ ━━━━━━━━━━━━━━━
1: Find the unit rate of Helen collecting flowers. To find the unit rate, just divide 240 by 20, to see how many flowers she can collect per minute.
2: Multiply the number of flowers Helen can collect in 1 minute by 35 (since 1 times 35 is 35).
━━━━━━━━━━━━━━━ ♡ ━━━━━━━━━━━━━━━
1: 240 divided by 20 is 12. Helen can collect 12 flowers per minute. The unit rate of Helen collecting flowers is 12 flowers per minute.
2: Since Helen can collect 12 flowers per minute, you need to find out how many she can collect in 35 minutes. To get from 1 minute to 35 minutes, you multiply 1 by 35. So you need to multiply 12 by 35 as well. 12 times 35 is 420. So Helen can collect 420 flowers in 35 minutes.
━━━━━━━━━━━━━━━ ♡ ━━━━━━━━━━━━━━━
Idk how to do this!!?!?
Answer:
∠ AED = 130°
Step-by-step explanation:
CD is a straight line, thus
∠ AEC + ∠ AED = 180° , that is
50° + ∠ AED = 180° ( subtract 50° from both sides )
∠ AED = 130°
If 225 is the dividend and 15 is the divisor, then what is the quotient?
Answer:
The answer is 15.
Step-by-step explanation:
When dividing 225 by 15 you can multiply 15 by 15 and you will get 225.
Cora started her math homework at 3:39 P.M. She finished all the problems at 4:12 P.M. How long did Cora spend doing her math homework?
Answer:
She spent 33 minutes on her homework
Step-by-step explanation:
Answer:
33 minutesStep-by-step explanation:
An hour is 60 minutes.
Taking 39 away from 60...
39 - 60 = 21
and adding 12 to it.
21 + 12 = 33
We have our answer:
33 minutesI'm always happy to help :)Write an English phrase that would translate into the following mathematical expression. 7z-4
Answer: Four is less than seven times z
Step-by-step explanation:
what number set 1/2 belongs to? rational, irrational, integer, or natural
Answer:
Rational
Step-by-step explanation:
1/2 would be 0.5 and 0.5 goes into the Rational catagory.
Please solve #5 and show your work! Will give BRAINLIST!!
Answer:
damita
Step-by-step explanation:
erin: 2/12 = 0.1666667
damita: 4/16 = 0.25
jayden: 3/15 = 0.2
0.25 is the highest concentration
What value of x will make each equation below true? 4x-1=4x+7
Answer:
4X-1=4X+7
4x - 4x = 1 + 7
0 = 8
Step-by-step explanation:
Since there is no value of x that will make this true,
this has no solution and x is the empty set.
Answer:
Step-by-step explanation:
4x-1=4x+7
4x-1-4x=4x+7-4x
-1=7
1/3 + a + 5/4. what is A
Answer:
a = -1.58
Step-by-step explanation:
1/3 +a+5/4 =0
1/3+5/4= -a
4+15/12 = -a
19/12 = -a
1.58= -a
1.58/-1 = -a/-1
-1.58 = a
rose had $1000 in her bank account when she was 8 year old. each birthfay her grandma gave rose $20 until she turned 21
Answer:
1260
Step-by-step explanation:
Subtract 21 from 8,to get 13.Multiply 13 to the 20 dollars,when you do that you get 260.You add the 260 and the 1000 dollars together.
the hypothenus of a right angle triangle is 13cm. if one other side of the triangle is 1cm shorter than the hypothenus, calculate the third side of the triangle
Answer:
5 cm.
Step-by-step explanation:
Let the lengths of the other 2 sides be 13-1 = 12 and x cm.
Then by Pythagoras:
13^2 = 12^2 + x^2
x^2 = 13^2 - 12^2
x^2 = 169 - 144 = 25
x = √25
x = 5 cm.
Step-by-step explanation:
Hey, there!!
As per your question,
There is a Right angled triangle, whose hypotenuse is 13 cm, one side is (13-1)=12 cm.
another side = ?
Let ABC be a Right angled triangle, taking angle "theta" as a refrence angle.
Hypotenuse (h)= 13 cm.
base ( b) = x
perpendicular (p)= 12cm.
By Pythagoras relation we get,
[tex]b = \sqrt{ {h}^{2} - {p}^{2} } [/tex]
[tex]b = \sqrt{ {13}^{2} - {12}^{2} } [/tex]
[tex]b = \sqrt{169 - 144} [/tex]
Therefore, base is 5 cm. Or the third side is 5 cm.
Hope it helps...
Does anyone know this?
Answer:
[tex]\Huge \boxed{-2}[/tex]
Step-by-step explanation:
[tex]f(x)=-2x^2-2x+10[/tex]
For f(2), the input of the function is 2.
Let x = 2.
[tex]f(2)=-2(2)^2-2(2)+10[/tex]
Evaluate.
[tex]f(2)=-2(4)-2(2)+10[/tex]
[tex]f(2)=-8-4+10[/tex]
[tex]f(2)=-2[/tex]
Answer:
[tex]f(x) = - 2 {x}^{2} - 2x + 10[/tex]
put the value of x = 2
[tex]f(2) = - 2( {2}^{2} ) - 2(2) + 10[/tex]
[tex] f(2) = - 8 - 4 + 10[/tex]
[tex]f(2) = - 12 + 10[/tex]
[tex]f(2) = - 2[/tex]
hope it helps u
Solve the equation x/2-6=y for x
Answer:
x = 2y + 12Step-by-step explanation:
x/2 - 6 = y+6 +6
x/2 = y + 6×2 ×2
x = 2(y + 6) x = 2y + 12If (1,-1) is a point on the line 2x-(2a+5)y=5 then find the value of a
Answer:
a = - 1Step-by-step explanation:
Since ( 1 , -1) is a point on the line 2x-(2a+5)y=5 we can substitute it into the equation to find a
We have
2(1) - (-1)(2a + 5) = 5
Multiplying two negatives make a positive
That's
2 + 2a + 5 = 5
2a + 7 = 5
Group like terms
Send the constants to the right side of the equation
That's
2a = 5 - 7
2a = - 2
Divide both sides by 2
That's
[tex] \frac{2a}{2} = \frac{ - 2}{2} [/tex]We have the final answer as
a = - 1Hope this helps you
On Monday the temperature was 32° On Tuesday the temperature was -5°. What was
the change in temperature?
Answer:
37°
Step-by-step explanation:
Think of 0° as a reference point. Then 32° is above this reference by 32 degrees, and -5° is below it by 5 degrees. Summing up 32 and 5, we get 37. The change in temperature was 37°
Pls halp due today >_<. Thank you
Answer:
-√(1/4) is smaller
Step-by-step explanation:
Step 1: Evaluate -√(1/4)
-√(1/4) = -(0.5) = -0.5
Step 2: Evaluate -1/5
-1/5 = -0.2
Step 3: Align
-0.5 < -0.2
Find the slope of the line containing the points (-5,-4) and (-3,-6)
This year,a farm planted 400,000corn stalks.Last year,the farm planted 275,650cornstalks. How many more cornstalks did the farm plants this year than last year?
Answer:
The farm planted 124,350 more cornstalks
Step-by-step explanation:
Here in this question, we want to know how much more corn stalks did a farm plant this year compared to last year.
Let’s picture it this way;
Possibly due to expansion purposes, the farm planted more cornstalks this year than last year. So to find the difference in the cornstalks planter between the two years, what needs to be done is simply to subtract the number of corn stalks planted last year from the number of corn stalks planted this year.
From the question, the number of cornstalks planted last year was 275,650 while the number of cornstalks planted this year was 400,000; So the difference between the two will be ;
400,000 - 275,650 = 124,350 cornstalks
Last one, use trigonometry to help you solve for y given that one side is 4 and there is an angle of 50 degrees.
Answer:
y = 6.22
You can solve this in two ways.
1.) Use SOH CAH TOA:
I typically start off by labeling the sides of the triangle with H (hypotenuse), O (opposite), and A (adjacent). Because I need to figure out what y is when given an angle and 4, I will use CAH, or cosine.
[tex] \cos(angle) = \frac{adjacent}{hypotenuse} [/tex]
[tex] \cos(50) = \frac{4}{y} [/tex]
[tex] \cos(50) \times y = 4[/tex]
[tex]y = \frac{4}{ \cos(50) } [/tex]
[tex]y = 6.22[/tex]
2.) Use Law of Sines:
Solve for the last angle inside the triangle first.
[tex]180 - (50 + 90) = 40[/tex]
Then use the angle you found (40°) in the equation.
[tex] \frac{4}{ \sin(40) } = \frac{y}{ \sin(90) } [/tex]
[tex] \frac{4}{ \sin(40) } \times \sin(90) = y[/tex]
[tex]y = 6.22[/tex]
Mrs. Lawrie tried to write this number in standard form and made a mistake. What was Mrs. Lawrie's mistake? 600,000 + 8,000 + 500 + 70 + 3 = 68,573 what did she do wrong
Answer:
Mrs. Lawrie forgot the 600,000 in the equation. Answer = 608,573
Step-by-step explanation:
The equation was:
600,000 + 8,000 + 500 + 70 + 3 = 608,573
Mrs. Lawrie got 68,573, while the answer was 608,573
7(6+5n) + 5(7 + n) = 37
I need help please
Answer:
or, 42+35n+35+5n=37
or, 77+40n=37
or, 40n=40
so, n=1
Step-by-step explanation:
hope it helps you
Need help Only 5 questions
Answer:
for question no 5
answer is 1/10
Hailey divided 92 ÷ 5. Her work is shown below.
92 divided by 5. 5 goes into 9 1 time. 9 minus 5 = 4. 5 goes into 42 8 times. 42 minus 40 = 2. The answer is 18 R 2. There are 5 groups of 1 ten plus 8 ones.
Which statements are true about Hailey’s work? Check all that apply.
Hailey found the correct quotient.
The “1” in the quotient represents the number of tens in each of the 5 groups.
Hailey placed the dividend and divisor in the wrong places in the problem.
The “R2” represents the number of ones in each of the 5 groups.
Since only 5 tens could be divided evenly among the groups, Hailey subtracted 5 from 9 to find out how many tens were left over.
Answer:
The “1” in the quotient represents the number of tens in each of the 5 groups.
Since only 5 tens could be divided evenly among the groups, Hailey subtracted 5 from 9 to find out how many tens were left over.
Step-by-step explanation:
Given:
92÷5
Hailey's workings:
92 divided by 5.
5 goes into 9 1 time.
9 minus 5 = 4.
5 goes into 42 8 times.
42 minus 40 = 2.
The answer is 18 R 2.
The true statements about Hailey's work are:
The “1” in the quotient represents the number of tens in each of the 5 groups.
Since only 5 tens could be divided evenly among the groups, Hailey subtracted 5 from 9 to find out how many tens were left over.
HELPPPP please !!!!!,!!?
Mercury has the greater density than that of Venus .
Answer:
mercury has higher density than venus