Step-by-step explanation:
f(x)=4x+5
f(-3)=-12+5=-7
Answer:
-7
Step-by-step explanation:
f(x) = 4x + 5
write - 3 inplace of x
f(-3) = 4*-3 + 5
=-12 + 5
=-7
Who answered the most questions correctly
Is this a function? Or is it not a function ? I’ll give brainlist.
Answer:
its a function something to remember is if anything on the y line (up and down) touches its not a function otherwise it is
Step-by-step explanation:
PLEASE HELP I NEED THE ANSWER THANK YOU
Answer:
B
Step-by-step explanation:
Maeve and Jonathan painted part of a wall.
• Maeve painted 25% of the wall.
•Jonathan painted 1.5 times as much of the wall as Maeve painted.
What fraction of the entire wall did Maeve and Jonathan paint?
Answer:
um this was on the 7th grade mcas hahahhhhah
Step-by-step explanation:
I WAS STUCK ON THIS TO BAE
I need help with this one
Answer:
4
Step-by-step explanation:
44 rounded to nearest tenth is 40
:) ur welcome
Answer:
It's 4
Step-by-step explanation:
44 rounded to the nearest tenth is 40
what is the answer to 3/4(2a − 6) + 1/2 = 2/5(3a + 20)
[tex]is \: it \: \frac{3}{4(2a - 6)} \: \: or \: \frac{3}{4} (2a - 6)[/tex]
??
PLS HELP! 20 POINTS!
PLEASE HELP WILL GIVE YOU BRAINLIEST!!!!!!
Jamal flips a coin. The function h(t) = -16? + 20+ + 5 models the height of the coin, in feet above the ground,
t seconds after Jamal flips the coin. A graph of the function is given.
the most important part of the quadratic function is its vertex. ... Graph the function by finding the vertex and two points on each side of the ... A ball was kicked into the air from a balcony 20 feet above the ground, and the ball's height above the ground, in feet, t seconds after the ball was kicked was h(t) = 20 - 16t2 + 32t.
For what value of k is the expression x^4 + kx^2+36 a perfect square
A.36
B. 6
C. 72
D. 12
Answer:
B) 6
Step-by-step explanation:
We need to figure out the value of k in x⁴+kx²+36 -> (x²+a)(x²+b) where a+b=k and ab=36 as a=b. Therefore, k needs to be 6 because 6*6=36 and 6+6=12 given a=b.
find value of y step by step hope you will help
Answer:
y = 20 degree
Step-by-step explanation:
angle EOA = 5y (being vertically opposite angles)
angle COE + angle EOA + angle AOD = 180 degree (being linear pair)
2y + 5y + 2y = 180 degree
9y = 180
y = 180/9
y = 20 degree
Answer:
y = 20
Step-by-step explanation:
Angles COE and DOF are vertical angles and are congruent.
m<COE = m<DOF = 2y
<BOA is a straight angle and measures 180 degrees.
m<BOF + m<DOF + m<DOA = 180
5y + 2y + 2y = 180
9y = 180
y = 20
Tracey paid $374.25 for a new iPad. What was the original cost if the iPad was on sale for 25% off
Answer:
$467.8125
Step-by-step explanation:
Percentage increase = 25% × 374.25
New value = 374.25 + Percentage increase
New value =
374.25 + Percentage increase =
374.25 + (25% × 374.25) =
374.25 + 25% × 374.25 =
(1 + 25%) × 374.25 =
(100% + 25%) × 374.25 =
125% × 374.25 =
125 ÷ 100 × 374.25 =
125 × 374.25 ÷ 100 =
46,781.25 ÷ 100 =
467.8125 ≈
467.81
Coffee is sold in two different-sized canisters. The smaller canister has a diameter of 9 cm and a height of 12 cm. The larger canister is double the size of the small canister. Calculate the volume and surface area of each canister and compare the results of doubling the dimensions.
Answer:
Step-by-step explanation:
Smaller Canister:
Height, h = 12cm
Diameter = 9cm
Radius, r = 4.5 cm
[tex]Volume = \pi r^2h\\[/tex]
[tex]=\pi \times 4.5^2 \times 12\\\\=243 \pi \ cm^3[/tex]
[tex]Surface \ area = 2 \pi r(r + h)\\[/tex]
[tex]=2 \times \pi \times 4.5 ( 4.5 + 12)\\\\= \pi \times 9(16.5)\\\\=148.5 \ cm^2[/tex]
Larger Canister:
Measures double the smaller canister, that is
height, H = 24 cm
Diameter = 18cm
Radius, R = 9cm
[tex]Volume = \pi R^2 H\\[/tex]
[tex]= \pi \times 9^2 \times 24\\\\= \pi \times 81 \times 24 \\\\= 1944 \pi[/tex]
[tex]Surface \ area = 2 \pi R(R+ H)[/tex]
[tex]= \pi \times 2 \times 9 ( 9 + 24) \\\\= \pi \times 18(33)\\\\=594 \pi \ cm^2[/tex]
Comparing results :
[tex]Volume_{small} = \pi r^2 h\\\\Volume_{large} = \pi R^2 H = \pi(2r)^2(2h) = \pi(4r^2)(2h)= 8 \pi r^2h = 8 \times volume_{small}[/tex]
Therefore, volume of larger canister is 8 times the volume of smaller canister.
[tex]Surface\ area _{larger} = 2 \pi R(R + H) = 2 \pi(2r)((2r+2h))\\\\[/tex]
[tex]=2 \ pi \times 2r \times 2 (r+ h)\\\\= 4 \times 2\pi r(r+ h) \\\\= 4 \times surface\ area_{smaller}[/tex]
Therefore, surface area of larger canister is 4 times the surface area of smaller canister.
f (x) =x^2-6x+4 how do i find the vertex ?
Answer:
(3, -5)
Step-by-step explanation:
So, there are three steps in finding the vertex.
We need to first find a, b and c. a is the x^2 coefficent, b is the x cofficent, and c is the number value. In this case:
a=1, b=-6, and c=4
To find the x value of the vertex, plug in a and b into the formula:
-b/2a = x coord of vertex:
-*-6/2*1
=
6/2
=
3
So the x coordinates of the vertex is 3.
To find the y cooridnates, plug in 3 into the orginal equation:
[tex](3^2)-(6*3)+4[/tex]
=
[tex]9-18+4[/tex]
=
[tex]-5[/tex]
So -5 is the y coordinates of the vertex.
Answer:
(3, -5)
Hope this helps!
Going over steps:
Step 1 - Find values a b and c: a=x^2 coefficent. b=x coefficent. c=number
Step 2 - Plug in a and b into -b/2a
Step 3 - Plug in x into equation
State whether height is a function of weight for the six students and explain.
a.
Yes, height is a function of weight because two students weigh 165 pounds but have different heights.
b.
No, height is not a function of weight because two students weigh 165 pounds but have different heights.
c.
Yes, height is a function of weight because for each weight there is a corresponding height.
d.
No, height is not a function of weight because there is not enough data to determine a function.
Answer:
Correct answer is B) No, height is not a function of weight because 2 students weigh 165 pounds but have different heights.
What is 0.00931 in standard form
Answer: 9.31*10^-3
Step-by-step explanation:
The decimal number 0.00931 written in standard form is 9.31•10^-3
Estimated is 9•10^-3
Heart it if it helps!
on the first play of a game , a football team gained 23 yards and then lost 10 yards due to penalty during the second play the team gained 8 yards, on the third and fourth play the team lost 11 yards in each play? how many yards in total did the tram gain or lose during the four plays?
Having ____ siblings is just as common as having____
Answer:
1 ; 3
Step-by-step explanation:
Hope this answer helps you :)
Have a great day
Mark brainliest
HELP ASPA WILL GIVE BRAINLISET
A pizza delivery man makes $50.00 a shift. If he makes $3.00 on each delivery he makes, how much will he make if he makes 22 deliveries in one shift? Create an equation to represent this situation. Write the equation in function notation. State the ordered pair for 22 deliveries and explain your solution.
Answer:
f(x) = 3x + 50 is the equation in function notation.
(22, 116) is the ordered pair for 22 deliveries.
Step-by-step explanation:
First, create the equation. Let x represent how many deliveries he makes.
Since he makes $3 on each delivery, the total amount he makes from deliveries can be represented by 3x.
He also makes $50 a shift, so add this to 3x in the equation:
f(x) = 3x + 50 is the equation in function notation.
Find how much he will make if makes 22 deliveries. Plug in 22 as x:
f(x) = 3x + 50
f(22) = 3(22) + 50
f(22) = 66 + 50
f(22) = 116
So, he will make $116.
As an ordered pair, the solution is (22, 116).
Answer:
f(x) = 3x + 50
Step-by-step explanation:
If he makes $50.00 a shift, and $3.00 for each delivery, and he makes 22 deliveries in one shift then the equation (in function notation) would be f(x) = 3x + 50. and the solution to the equation is 116.
What is the solution to the system of equations below?
CU
y=-x+6 and y=-30
A. (45, -30)
B. (-30, 30)
C. (-30, 45)
D. (30, -30)
Answer:
(36,-30)
Step-by-step explanation:
y = -30
Solve for x
y = -x+6
-30 = -x+6
Subtract 6 from each side
-36 = -x
Multiply each side by -1
x = 36
Answer:
A. (45, –30)
Step-by-step explanation:
trust me<33
find the missing number in the factor tree
for 20 points
i hope you will help
Answer:
see below
Step-by-step explanation:
80 = 4* 20
2*2 2 * 10
2 *5
We are breaking the numbers into primes
2*2*2*2*5
A.) A family spends an average of $3000 on a local vacation, how much money was spent on gas? Gas 4%
divide 3000 by 100. multiply. that by your percentage (4%)
3000 ÷ 100 = 30. 30 x 4 = 120$
The members of a golf team contributed a total of $14.30 for a party to be held after their practice. Each member contributed the same amount of money in dimes only. How many members are in the team and how much money did everyone contribute? Give all possible answers.
Answer:
each teammate contributed 1.43 sorry but i do not know how many members they have because my head hurts
Triangle ABC is similar to triangle EFD. What scale factor is required to dilate triangle ABC so that it's image, A'B'C' , is congruent to triangle EFD
HELPP WILL GIVE BRAINLEST !!!!!!!!
Answer:
8.06
Step-by-step explanation:
(can someone please answer this question for me i will make you brainliast )
a computer part costs 200 tpa in techtopia
Answer:
ea
Step-by-step explanation:
Can someone help me with this? Will Mark brainliest.
The answer should be diameter.
Answer:
diameter
Step-by-step explanation:
The wheely fast co. Makes custom skateboards for professional riders. They model their profit with the relation P=-2b^2 + 14b - 20, where b is the number of skateboards they produce(in thousands) and P is the company's profit in hundred thousands of dollars. When does wheely fast break even?
Answer:
The answer is below
Step-by-step explanation:
Breakeven point is the point of balance where their is neither a loss or a profit. At the breakeven point, the revenue gotten from the sell of goods is equal to the cost of production of the goods, hence the profit is zero.
Given the profit function:
P=-2b² + 14b - 20
At breakeven P = 0, hence:
0 = -2b² + 14b - 20
-2b² + 14b - 20 = 0
-2b² + 10b + 4b - 20 = 0
-2b (b - 5) + 4(b - 5) = 0
(b - 5)(-2b + 4) = 0
b - 5 = 0; or -2b + 4 = 0
b = 5; or b = 2
Since b is in thousands, hence the company breaks even when the number of skateboards produced is either 2000 or 5000
which inequalities are truth, select the 4 correct answers.
Answer:
square the number in the middle to solve
it's easier than calculating the roots
1) true
2) true
3) false (obviously)
4) false (3² = 9, not less than 9)
5) true
6) true
Answer:
Step-by-step explanation:
True 2.23<2.3<2.44
True 2.23<2.4<2.44
True
False 2.82<3<3
True 2.82<2.9<3
False 2<4.5<2.23
Which long division problem can be used to prove the formula for factoring the difference of two perfect cubes?
Answer:
The answer would be D
Step-by-step explanation:
Got it right on Edge 2021