Answer:
f(-3) = 22Step-by-step explanation:
f(x)=x² - 2x + 7
To find f(-3) substitute the value of x that's - 3 into f(x). That is for every x in f (x) replace it with - 3
We have
f(-3) = (-3)² - 2(-3) + 7
= 9 + 6 + 7
We have the final answer as
f(-3) = 22
Hope this helps you
The area of a square is given by A=s2, where s is the length of each side of the square. If the area of a square room is 81 square meters, what is the length of one side of the room in meters?
Answer: The length of one side is 9m.
Step-by-step explanation:
If area is 81 square meters, that means A = 81 m^2.
Since A = s^2, we can substitute s^2 for A. Then
(s^2) = 81 m^2
Take the square root of both sides to solve for s:
(s^2)^(1/2) = (81 m^2)^(1/2)
s = 9 m
Type the correct answer in the box. Use numerals instead of words. If necessary, use / for the fraction bar. Solve the following equation for x, and express its value in terms of c. 3(cx-7)=9
Answer:
x=10/c
Step-by-step explanation:
3(cx-7)=9
(cx-7)=3
cx=10
x=10/c
Answer:
x=10/c
Step-by-step explanation:
3(cx-7)=9
(cx-7)=3
cx=10
x=10/c
Which is a counterexample for the conditional statement shown?
If three distinct points lie in a plane, then the points can form a triangle.
The points form a different polygon.
The points form a circle.
The points form an open figure.
The points form a line.
Answer:
d
Step-by-step explanation:
If three distinct points lie in a plane, can also form a straight line. Therefore, option D is the correct answer.
Given that, if three distinct points lie in a plane, then the points can form a triangle.
We need to identify the counterexample for the conditional statement given.
What is a counterexample?A counterexample to a mathematical statement is an example that satisfies the statement's condition(s) but does not lead to the statement's conclusion. Identifying counterexamples is a way to show that a mathematical statement is false.
Now, if three distinct points lie in a plane, then the points always can not form a triangle.
If three distinct points lie in a plane, can also form a straight line.
Therefore, option D is the correct answer.
To learn more about the triangle visit:
https://brainly.com/question/2773823.
#SPJ2
Point E is between segment DF. The length of DE is 3x - 1, EF is 13 and DF is 6x, find DF.
Answer:
The correct answer to this problem is x = 4.
Step-by-step explanation:
To solve this problem, we can set up an equation using the given information. We know that Point E lies along the segment DF, so we can write:
DE + EF = DF
Now, we can substitute the values given into our equation.
(3x-1) + (13) = 6x
The next step is to eliminate the parentheses and combine like terms on the left side of the equation.
3x - 1 + 13 = 6x
3x + 12 = 6x
Next, we should subtract 3x from both sides to move all of the variable terms to the right side of the equation.
12 = 3x
Finally, we can divide both sides by 3, in order to completely isolate the variable x on the right side of the equation.
4 = x
Therefore, the correct answer is x = 4.
Hope this helps!
is it true or false for a, b and c?
Answers:
a) Trueb) Falsec) True====================================================
Explanations:
a) y = sin(theta) describes the height of the point (x,y). Because m = sin(theta), this means m is the height. b) Cosine is not positive in quadrants II and III, where x < 0. This is because x = cos(theta).c) Adding pi radians to the angle theta will rotate it 180 degrees to have it land in the fourth quadrant (southeast quadrant).(p- 11p' + 17p2 + 2p - 6) = (p – 2)
Answer:
p=(9+\sqrt(353))/(34),(9-\sqrt(353))/(34)
Step-by-step explanation:
what is 0.72 bar as a fraction
Answer:
0.72 is the same as 72100 (try putting both into a calculator!) as you can view 1.00 as 11 . Reducing the fraction gives you 72100 = 1825 .
what is the product of 3.5 and 1.82
Answer:
6.37
Step-by-step explanation:
Product means multiply.
3.5x1.82=6.37
The product of 3.5 and 1.82 is 6.37 after using the concept of arithmetic operation the answer is 6.37.
What is an arithmetic operation?It is defined as the operation in which we do the addition of numbers, subtraction, multiplication, and division. It has a basic four operators that is +, -, ×, and ÷.
It is given that:
The product of 3.5 and 1.82
To calculate the product of 3.5 and 1.82:
We have:
Product of the numbers 3.5 and 1.82
= 3.5 ×1.8 (this represents a number expression)
The expression can define as the combination of constants and variables with mathematical operators.
Product of the numbers 3.5 and 1.82 = 6.37.
Thus, the product of 3.5 and 1.82 is 6.37 after using the concept of arithmetic operation the answer is 6.37.
Learn more about the arithmetic operation here:
brainly.com/question/20595275
#SPJ2
Charmaine is on the swim team. Each week she swims a total of 6,000 meters. How many kilometers does she swim each week?
Answer:
1000m = 1 km
:. 6000m=6000/1000 =6km ans
hope it helps
plz mark as brainliest.
another maths question teehee
what is -6 over 3 divided by 2 over -9
Answer:
9
Step-by-step explanation:
1)First you want to write out your fractions:
-6 2
___ ÷ ___
3 -9
2)When you are dividing fractions, you will have to do the reciprocal (flipped version) of 2/-9 and multiply the two fractions instead.
This is how your equation should look like now:
-6 -9
___ • ___
3 2
3)Now you want to multiply the equation like this:
-6 -9 54
___ • ___ = ______ = 9
3 2 6
4)You should get an answer of 9.
HELP ME PLESE ,3 I NEED THIS
The measure of arc EF = 146 degrees because its central angle = 146 degrees.
Find (f+g)(x).
f(x) = 2x2 – 2x+7
g(x) = 4x2 – 2x + 9
Answer:
6x^2 -4x +16
Step-by-step explanation:
(2x^2 -2x +7) + (4x^2 -2x +9)
6x^2 -4x +16
Point A is at (-7,5) and point M is at (0.4). Point M is the midpoint of point A and point B. What are the coordinates of point B?
Answer:
The coordinates of point B is
( 7 , 3)Step-by-step explanation:
The midpoint M of two endpoints of a line segment can be found by using the formula
[tex]M = ( \frac{x1 + x2}{2} , \: \frac{y1 + y2}{2} )[/tex]
where
(x1 , y1) and (x2 , y2) are the points
Let the coordinates of B be ( x , y)
From the question the midpoint is ( 0 , 4) and A is (-7 , 5)
So we have
[tex](0 \: , \: 4) = ( \frac{ - 7 + x}{2} , \: \frac{5 + y}{2} )[/tex]
Next we compare the x and y coordinates of the midpoint to the x and y coordinates on the right hand side to find the missing coordinates
That's we equate them
So we have
For x[tex]0 = \frac{ - 7 + x}{2} \\ - 7 + x = 0 \\ \\ x = 7[/tex]
For y[tex]4 = \frac{5 + y}{2} \\ 8 = 5 + y \\ y = 8 - 5 \\ \\ y = 3[/tex]
So we have
x = 7 , y = 3
So the coordinates of point B is
( 7 , 3)Hope this helps you
Answer:
7,3
Step-by-step explanation:
Evaluate the indicated function for f(x) = x2 - 7 and g (x) = x+3
Answer:
-1 but your question doesn't make sense
Step-by-step explanation:
eric planted a seedling in his garden
Answer:
how is this a question......
If f(x) = x2 + 1 and g(x) = x – 4, which value is equivalent to (f circle g) (10)? 37 97 126 606
Answer:
A. 37
Step-by-step explanation:
(fxg) (10)
Step 1. G is the second letter, so we first use the equation g(x) = x-4
Step 2. Plug in ten for x. g(x) = 10-4
Step 3. ten minus four is six. g(x) = 6
Step 4. Now the new x is 6 and we use the second equation next.
f(x) = x^2 + 1
Step 5. Plug in six for x. f(x) = 6^2 + 1
Step 6. six to the power of two is 36. f(x) = 36 + 1
Step 7. 36 plus one is 37. f(x) = 37
Step 8. Answer is thirty seven!!!! Cheer!!!!
A';nswer:
a
Step-by-step explanation:
help I tried finding answers nothing showed so now I’m here asking y’all :)
Is -8.43 a integer whole number or a rational number ?
Answer:
rational number
Step-by-step explanation:
A whole number would be just 8. Nothing behind it.
Clare
1
3
4
7
8 9 10 11
3
Tyler rode his bike 43 1/8 miles in 5 3/4 hours. How many miles did Tyler ride his bike per hour?
Show Your Work
oood
7 1/2 miles per hour
8 4/5 miles per hour
7 1/6 miles per hour
8 3/5 miles per hour
The number of miles is 7 1/2 miles option (A) is correct if Tyler rode his bike 43 1/8 miles in 5 3/4 hours
What is a fraction?Fraction number consists of two parts, one is the top of the fraction number which is called the numerator and the second is the bottom of the fraction number which is called the denominator.
It is given that:
Tyler rode his bike 43 1/8 miles in 5 3/4 hours.
Let d is the number of miles Tyler ride his bike per hour
43 1/8 miles in 5 3/4 hours
345/8 miles in 23/4 hours
d miles in 1 hour
345/8 = 23d/4
345/2 = 23d
d = 345/46
d = 322/46 + 23/46
d = 7 1/2 miles
Thus, the number of miles is 7 1/2 miles option (A) is correct.
Learn more about the fraction here:
brainly.com/question/1301963
#SPJ2
!!!!Pls help me hurry !!!! I don’t know what I’m doing
Brad rode his bike 4 3/10 miles. Then he ran 2 9/10. How much farther did he ride than run?
Answer:
I believe 1 4/10 further
PLEASE HURRY 20 POINTS
A fabric store sells each yard of fabric for x dollars. Which situation can be represented by this inequality? 10x<8x+5 The cost of 10 yards of fabric is greater than the cost of 8 yards of fabric plus a $5 pack of buttons. The cost of 10 yards of fabric is less than the cost of 8 yards of fabric plus a $5 pack of buttons. The cost of 10 yards of fabric is less than the cost of 8 yards of fabric with a $5-off coupon. The cost of 10 yards of fabric is $5 greater than the price of 8 yards of fabric.
Answer:
The answer is 10x<8x+5 The cost of 10 yards of fabric is greater than the cost of 8 yards of fabric plus a $5 pack of buttons.
Step-by-step explanation:
When you multiply the sum and and the difference of 10x and 8x you will get the answer up there. I have done this test before when I was in middle school.
Answer:
It's The cost of 10 yards of fabric is less than the cost of 8 yards of fabric plus a $5 pack of buttons.
Step-by-step explanation: I took the test
Determine the equation of the line passing through the point ( − 5 , − 22 ) ,with a slope of m = 5 .
Answer:
The equation of the line is y = 5x + 3
Step-by-step explanation:
Use the point given to find the y-intercept.
y=mx+b
-22=5(-5)+b
-22=-25+b
3=b
expand using pascal triangle (3x+2)^4
Answer:
The answer is
81x⁴ + 216x³ + 216x² + 94x + 16Step-by-step explanation:
(3x + 2)⁴
Using the Pascal's triangle
For an exponent of 4 we have
( a + b)⁴ = a⁴ + 4a³b + 6a²b² + 4ab³ + b³
Using a = 3x and b = 2 we have
( 3x +2)⁴ = ( 3x)⁴ + 4 [ (3x)³(2) ] + 6[ (3x)²(2)²] + 4 [ 3x(2)³ ] + 2⁴
Expand and simplify
That's
➢ ( 3x +2)⁴ = 81x⁴ + 4[ (27x³)(2) ] + 6 [ (9x²)(4) ] + 4 [ 3x(8) ] + 16
➢ 81x⁴ 4( 54x³) + 6(36x²) + 4( 24x) + 16
We have the final answer as
81x⁴ + 216x³ + 216x² + 94x + 16Hope this helps you
1) Which expression has the greatest value
when x=3?
An expression is a way of writing a statement with more than two variables or numbers with operations such as addition, subtraction, multiplication, and division.
The expression that has the greatest value is 2x³
What is an expression?
An expression is a way of writing a statement with more than two variables or numbers with operations such as addition, subtraction, multiplication, and division.
Example:
2 + 3x + 4y = 7 is an expression.
2x + 4 - 5x is an expression.
3x = 4 is an expression.
We have,
We will find the value of the expression when x = 3.
2x³ = 2 x 3³ = 2 x 3 x 3 x 3 = 64
2x³ + 5 = 2 x 3³ + 4 = 64 + 4 = 68
(2x)³ = 2³ x 3³ = 8 x 27 = 216
(x - 1)³ = (3 - 1)³= 2³ = 8
We see that,
2x³ has the greatest value.
Thus,
The expression that has the greatest value is 2x³
Learn more about expressions here:
https://brainly.com/question/3118662
#SPJ5
how do i graph negative square roots on a number line
Answer:
see below
Step-by-step explanation:
On the real number line you can't
to graph them you have to make a Cartesian plane
with x= the real numbers
and y= the imaginary numbers
City Gym charges $30 per month and a membership fee of $20. Muscle Gym charges $28 per month and a membership fee of $36. For what number of months would you pay the same?
Answer:
8 months
Step-by-step explanation:
Kevin plant a total of 72 flowers in equal rolls. Can you plant six rolls of yellow flowers and two rows of my flowers. How many flowers are in each row?
Answer:
9
Step-by-step explanation:
72 flowers in 8 equal rows will have 9 flowers in each row.
__
72 = 8 × 9
Answer:
There are 9 flowers in each of the 8 rows
Step-by-step explanation:
Kevin plants a total of 72 flowers in equal rows he plants 6 rows of yellow flowers and 2 rows of red flowers how many flowers are in each row
Solution
Total flowers = 72 in Equal rows
Yellow flowers = 6 rows
Red flowers = 2 rows
Rows of yellow flowers + Rows of rec flowers = 6 + 2
= 8 rows
Flowers in each row = Total flowers / total rows
= 72 flowers / 8 rows
= 9 flowers
Flowers in each row = 9 flowers
How do I solve this? Please show your work.
Answer:
24 cm²
Step-by-step explanation:
Volume of a prism is equal to the area of the base times the height of the prism.
V = Ah
The volume is 120 cm³, and the height is 5 cm. Therefore, the area of the base is:
120 cm³ = A (5 cm)
A = 24 cm²
what is the range of the graph
Answer:
Range: [1, 5]
Step-by-step explanation:
The range of a graph is all the y-values that are outputted by x-value inputs.
We see that our range spans from 1 to 5, and since they are closed dots, they are included in our range. Therefore, our range is [1, 5].