Answer:
f(3) = -14
General Formulas and Concepts:
Pre-Algebra
Order of Operations: BPEMDAS
Brackets Parenthesis Exponents Multiplication Division Addition Subtraction Left to RightAlgebra I
Function NotationStep-by-step explanation:
Step 1: Define
f(x) = -2x² + x + 1
f(3) is x = 3
Step 2: Evaluate
Substitute: f(3) = -2(3)² + 3 + 1Exponents: f(3) = -2(9) + 3 + 1Multiply: f(3) = -18 + 3 + 1Add: f(3) = -15 + 1Add: f(3) = -14will mark brainliest! pls help
JKLM, what is the value of M
The line models the temperature starting at noon on an autumn day.
a. Find the y-intercept of the function.
b. What does the y-intercept represent?
please help! (i will insert a picture so you can see the graph)
Answer:
a) y-intercept (as can be seen) is 50 degrees
b) this means that, at the time the temperature began to be recorded, it was 50 degrees outside
Step-by-step explanation:
A seed company planted a floral mosaic of a national flag. The perimeter of the flag is Determine the flag's width and length if the length is ft greater than the width.
Answer:
Step-by-step explanation:
lag is Determine the flag's wlag is Determine the flag's wlag is Determine the flag's w this mena that the wiatgh
Answer:
I need help on this.
Step-by-step explanation:
n + 10 = 8 + 4
find the value of n.
Answer:
n=2
Step-by-step explanation:
8+4=12
12-10=n
n=2
a) y=(x+4)7-7)
Convert factored form to standard form
Answer:
[tex]y - 7x = 21[/tex]
Step-by-step explanation:
Given
[tex]y = (x + 4)7 - 7[/tex]
Required
Convert to standard form
[tex]y = (x + 4)7 - 7[/tex]
Start by opening the bracket
[tex]y = x*7 + 4*7 - 7[/tex]
[tex]y = 7x + 4*7 - 7[/tex]
[tex]y = 7x + 28 - 7[/tex]
[tex]y = 7x + 21[/tex]
Subtract 7x from both sides
[tex]y - 7x = 7x - 7x + 21[/tex]
[tex]y - 7x = 21[/tex]
Hence:
The standard form is: [tex]y - 7x = 21[/tex]
A zoo keeper wants to fence a rectangular habitat for goats. The length of the habitat should be at least 80 feet and the perimeter of the habitat should be no more than 300 feet
Write a system of linear inequality:___________
Please help!! It’s due within 20 minutes!! Please..
Answer:
Step-by-step explanation:
Let x ft be the length of the fence and y ft be the width of the fence.
1. The length of the habitat should be at least 80 feet, then
2. The perimeter of the habitat should be no more than 300 feet. The perimeter of the fences 2x+2y ft, then
3. The system of inequalities that represent the model is
The graph of these inequalities is attached.
Two possible solutions are
1. x=100 ft, y=20 ft (100≥80 and 2·100+2·20=240≤300);
2. x=110 ft, y=30 ft (110≥80 and 2·110+2·30=280≤300).
What is the measure (in radians) of central angle in the circle below?
5 cm
0
2 cm
radians
Answer:
2.5
Step-by-step explanation:
[tex] - 10 = 2x + 6[/tex]
how do I do this
At Bridgeview School, 7/10 of the total students are driven to school by their parents. Another 1/6 of the total students at Bridgeview School ride the school bus. The remaining students walk. What fraction of the students walk to school?
Answer:
a fraction
Step-by-step explanation:
a fraction
C
Step-by-step explanation:
Which is an example of a statistical question?
|
|How old am 1?
How old is the teacher?
How old will I be after my next birthday?
How old are the students ín math class?
Answer:
Question 4 is a statistical question aka answer D
Step-by-step explanation:
Correct on edge
Please help explain how to do this
Answer:
Any number that isn't 3.
Step-by-step explanation:
Any other number should work, so I'll just show you what happens if you use 3.
2(3x - 2) = 6x + 5
6x - 4 = 6x + 5
-4 ≠ 5
As you are aware, that would make it no solution hence why it can't be used.
Complete the similarity statement for the two quadrilaterals given.
Enter your answer in the box.
quadrilateral RBWZ∼quadrilateral
Answer: hi! the answer is in the picture below but in case you can’t see the answer is JPFS
have a wonderful day and stay safe!!!
Step-by-step explanation: (see picture :))
Answer:
JPFS
Step-by-step explanation:
Verified correct with test results.
(3x+15) (2x)
Help pls
Answer:
(
3
+
1
5
)
(
2
)
(3x+15)(2x)
(3x+15)(2x)
Simplify
1
Distribute
(
3
+
1
5
)
(
2
)
3
(
2
)
+
1
5
(
2
)
Solution
3
(
2
)
+
1
5
(
2
)
Step-by-step explanation:
Answer:
[tex]3x+15+2x=180\\5x=165\\x=33\\[/tex]
Hey guys p lease help!!
Answer:
24
Step-by-step explanation:
Using ratios, we know that PQ/PT = PR/PS = QR/TS
of course, we know this because of AA similarity.
PQ/PT = 1/2
so PR/PS = 1/2 => PS = 12*2 = 24
Answer:
24
Step-by-step explanation:
PQ is half of PT, therefore, if PR = 12, PS = 24
Standard Form: 3x+4y=−16
Answer:
i know the answer
Step-by-step explanation:
A shoe store uses a 38% markup to price their items. The store buys the
shoes from the wholesaler for $52. By how much will they mark up the price?
Answer:
They will Markup the price by $19.76.
Step-by-step explanation:
Markup percent = 38%
Wholesale Price = $52
Markup price can be calculated by simply multiplying the wholesale price by 38% or 0.38.
so
Markup price = 38% of 52
= 38/100 × 52
= 0.38 × 52
= $19.76
Therefore, they will Markup the price by $19.76.
Sally was painting an airplane on a canvas using a 1in.: 8ft scale. If her painting was 29 inches wide, what was the actual width of the airplane?
Answer:
232 inches or 19.33 feet
Step-by-step explanation:
232 feet is the actual width of the airplane.
What is Unit of Measurement?A unit of measurement is a definite magnitude of a quantity, defined and adopted by convention or by law, that is used as a standard for measurement of the same kind of quantity.
Sally was painting an airplane on a canvas using a 1in.: 8ft scale
1 inches = 8 ft scale.
Sally painting was 29 inches wide.
We have to find the actual width of the airplane.
Convert 29 inches to feet.
As we know 1 inche is 8 feet so 8 inches will be the multiple of 8 and 28.
29×8
232 feet.
Hence, 232 feet is the actual width of the airplane.
To learn more on Unit of Measurement click:
https://brainly.com/question/15402847
#SPJ5
brainly pls
What is the solution of x + 6 11
C. x –1
show your work pls
Answer:
C. x < –1
Step-by-step explanation:
What is the solution of x + 6 < 5?
A. x < 11
B. x > 11
C. x < –1
D. x > –1
-1+6<5
but you need less than 5 so
x<-1
At the start of the experiment substance is measured to be 90°C, and by the end of the experiment its temperature is measured as -50°C. How does the temperature change from the start to the end of the experiment? Represent a decrease in temperature with a negative number.
Answer:
-140C
Step-by-step explanation:
∆T = T2-T1
∆T = -50-90= -140C
Picture attached below
Answer:
it's answer is B. 4/5
Step-by-step explanation:
perpendicular (p) = 8
hypotenuse (h) = 10
sin < A
= p/h
= 8/ 10
= 4/ 5
Hope it will help :)
solve for w. 7w=-14
please help me with this one plz
Answer: w = -2
Step-by-step explanation:
7w = -14
Divide both sides by 7
w = -2
That was brief but hope it helps!
Answer:
W = -2
Step-by-step explanation:
7W÷7 -14÷7
W= -2
Samir spent $150 at Costco. He had a coupon that took 5% off the total bill, b. What was the bill before the discount?
Answer:
157.89 is the answer
one sixth multiplied by 42
Answer:
6/42 = 1/7
Step-by-step explanation:
1/6 x 42/1
1 x 42 = 42
6 x 1 = 6
simplify to 1/7 (6 divided by 6 = 1, 42 divided by 6= 7)
hope this helps :)
Answer:
7
Step-by-step explanation:
1/6 x 42 = 7
Matteo is following this recipe to make a cake.
He wants to make three of these cakes.
How much of each ingredient does he need?
Recipe: Makes 1 cake
8 ounces butter
7 ounces sugar
10 ounces of flour
4 eggs
1 teaspoon (tsp) baking powder
Answer:
30 ounces of butter
25 ounces of sugar
35 ounces of flour
15 eggs
10 tbps of baking powder
Step-by-step explanation:
All you do is multiple each quantity by 5 I think
we are learning about this in school but check the web to see if it is correct
What is the slope of the line that passes through the points (-9,8) and
(-21, 10)? Write your answer in simplest form.
Answer:
The slope is -1/6
Step-by-step explanation:
We simply use the slope formula here
Mathematically, we have this as;
m = (y2-y1)/(x2-x1)
thus;
m = (10-8)/(-21 + 9) = 2/-12 = -1/6
Carl earns $3.25 per hour walking his neighbor’s dogs. He walks them 1/3 of an hour in the morning and 1/2 of an hour in the afternoon.
a. How much time does Carl spend dog walking every day?
b. How much time does Carl spend dog walking in a week?
c. Ten minutes is equal to 1/6 of an hour. How many minutes does Carl work dog walking each week?
d. How much money does Carl earn each week?
a first number plus twice a second number is 4. twice the first number plus the second number totals 26. find the numbers
Answer:
a = 16
b = -6
Step-by-step explanation:
a + 2b = 4
2a + b = 26
2a + 4b = 8
2a + b = 26
3b = -18
b = -6
a + 2(-6) = 4
a - 12 = 4
a = 16
Use the graph above to determine which of the following ordered pairs is in quadrant II.
( (-5-2)
(3.2)
(4.-1)
(-4, 6)
hellppp!!
The top and bottom margins of a poster are each 6.5 cm and the side margins are each 4.5 cm. The area of printed material on the poster is fixed at 384 cm^2.
Answer:
384cm^2,
Step-by-step explanation:
The top and bottom margins of a poster are each 6 cm and the side margins are each 4 cm. If the area of printed material on the poster is fixed at 384 cm^2,
6 quarts =
gallons
Please i meed help answer fast
Answer:
1 2/4 or 1.5
Explanation:
There are 4 quarts in a gallon, and 2 left over add 1/2 to the full gallon. So, 1 gallon, plus 2 quarts, which is equal to 1/2 gallon, is 1.5 gallons :D
Hope this helped!
