Answer:
25/4 or 6.25
Step-by-step explanation:
Given that the general equation of a quadratic equation is given as ax^2 + bx + c = 0, to complete the square, we subtract c from both sides of the equation and add the square of (b/2a) to both sides.Hence given x^2-5x-19=0, to complete the square, we add (-5/2)^2 to both sides following the illustration given.This is 25/4 or 6.24
A truck requires 35 liters of petrol to travel a distance of
450km.Find
The amount that the truck owner has to pay to travel distance of
1050 km if a liter of petrol costs $2.95.
Answer:
$240.92
Step-by-step explanation:
From the question,
The distance traveled by the truck is directly proportional to the amount of petrol used.
I.e,
d ∝ v............... Equation 1
d = kv
d/v = k
d₁/v₁ = d₂/v₂............. Equation 2
Where d₁ and d₂ are initial and final distance respectively, v₁ and v₂ are initial and final amount of petrol used respectively.
Given: d₁ = 450 km, d₂ = 1050 km, v₁ = 35 liters
Substitute into equation 2 and solve for v₂
450/35 = 1050/v₂
v₂ = (1050×35)/450
v₂ = 36750/450
v₂ = 81.67 Liters.
If a liter of petrol cost $2.95,
Then,
81.67 liters will cost (81.67×$2.95) = $240.92
Jameson and Quincy each deposit $7,000 into accounts that earn 6% interest, but Jameson earns annual simple interest while Quincy earns annual compound interest. Assuming neither one of them makes any deposits or withdrawals for 60 months, who will have more money in their account after the 60 months?
Answer:
its B
Step-by-step explanation:
Which is the graph of the following inequality?
X^2 < 4
A. Graph A
B. Graph B
C. Graph C
D. Graph D
Answer:
D) graph D
Step-by-step explanation:
x² < 4
x < [tex]\sqrt{4}[/tex] which means x < 2 and x > -2
Tell whether each event is impossible, unlikely, as likely as not, likely, or certain. Rolling a number cube and getting a number that is less than 7.
Answer:
Certain
Step-by-step explanation:
The answer is certain because all the numbers on a cube are less than 7. So it's impossible to get a number more than 7, or equal to 7.
PLS HELP MEEEEE!!!!!! I will give the brain thingy!!!
Answer:
y=5
Step-by-step explanation:
16-11= 5.
So y must be 5
pls give brainiest
Answer:
answer y-5
Step-by-step explanation:
do 16-11
Find the volume of the figure.
Answer:
90 m³Step-by-step explanation:
Volume of the prism is the product of the base area and the height
Base area is:
A = 1/2*10*3.6 = 18 m²Volume is:
V = 18*5 = 90 m³Answer:
Required Answer :-The base is representing a trapezium.
So,
Area = ½ × 10 × 3.6
Area = 5 × 3.6
Area = 18 m²
Now,
Volume = 5 × Area
Volume = 5 × 18
Volume = 90 m²
[tex] \\ [/tex]
What are the solutions of ? = 8-52?
o s-ľ57 S + √57
O-5-57
5+57
Answer:
99,000
Step-by-step explanation:
A savings account starts with $980 at a simple interest rate of 5.5%. How much interest will the account earn in 3 years?
Answer:
Interest = $161.70
Step-by-step explanation:
Formula:
I = Prt
Given:
P = 980
r = 0.055
t = 3
Work:
I = Prt
I = 980(0.055)(3)
I = 53.9(3)
I = 161.7
2.
Which set of angle measures can be used to construct a triangle?
A. O 50°, 65°, 75°
B.
45°, 60°, 75°
C
45°, 650, 75°
DO 50°, 45°, 75°
ella deposits $8000 into an account that pays simple interest at a rate of 3% per year. How much interest will she be paid in the first 4 years?
What is the area of the following composite figure?
60 cm 2
52 cm 2
44 cm 2
36 cm 2
Answer:
60 is the correct answer
Answer:
44
Step-by-step explanation:
Wendy is helping her mom put candy in 217 giftbagd. Each bag has 7 pieces of candy. She already put 58 pieces of candy in the bags. How many more pieces of candy need to go in the giftbagd
Answer:
406 pieces. If you multiply 58 times 7 you get 406. 406 divided by 58 is 7.
Determine whether 5n2 or 3n will have the greater value when:
a. n = 1
Answer:
5n2 will have a greater value
Step-by-step explanation:
5n2
5x1x2=10
3n
3x 1= 3
Madison makes $1,800 per month at the salon, but 15% of that amount goes to her rent for her booth. What two numbers can you multiply to find out how much she has after paying her rent?
Answer:
well the answer is 120
Step-by-step explanation:
How many dollars, per candle, did the candle maker raise her price?
! EASY & CORRECT ANSWER GETS BRAINLIST!
Answer:
11 = Y+5
Step-by-step explanation:
Answer:
i could be B or A not sure tho
Will give brainlyest
Answer:
10 hours
Step-by-step explanation:
320 = 30x + 20
300 = 30x
x = 10
Answer:
10 hours
Step-by-step explanation:
We already have the equation, which is y = 30x + 20. Simply substitute 320 for y, and solve for x.
320 = 30x + 20
First, subtract 20 from both sides.
320 - 20 = 30x
300 = 30x
Now divide both sides by 30.
300/30 = x
10 = x
It will take about 10 hours for Robin to travel 320 miles.
Help ASAP I really need an answer I don't need links please and if you don't know that answer just don't answer
Answer:
113
Step-by-step explanation:
note: to find the circumference of a circle using the radius, you use this equation -- 2[tex]\pi[/tex]r. since the radius is 18, you make the equation 2[tex]\pi[/tex]18. that gets you 36[tex]\pi[/tex], which, if put into the calculator, is about 113.
daniel eats 2/10 of yogurt for breakfast each morning how much yogurt does daniel eats for 3 days
Answer:
6/10
Step-by-step explanation:
2/10 times 3/1=6/10
hope this helps:) plz mark me brainliest
Answer:
3/5
Step-by-step explanation:
alrighty, so this is a standard rate and multiplication problem. How do we know? Well, because there's a steady rate of 2/10 per day, and for 3 days so:
2/10 x 3 = 6/10
6/10 can be simplified:
6/10 ÷ 2 = 3/5
So Daniel eats 3/5 yogurt over the course of 3 days
hope this helps:)
PLZ HELP QUIK PLZ HELP PLZ
Answer:
(x,y) = (-2,7)
Step-by-step explanation:
7x+2y=0
9x+4y=10
y = -9x/4 + 5/2
7x+2 (-9x/4 + 5/2) = 0
5x/2 = -5
5x = -10
x = -2
use x and substitute to get y
y = -(9/4) (-2) +5/2 = 7
Thuli has 8 shells and Nandi has 24 shells.what is the ratio of Thuli 's shells to Nandis
PLEASE HELP I NEED THE POINTS FOR THIS QUESTION, ILL GIVE BRAINLIEST
To qualify as a contestant in a race a runner Has to be the fastest 16% of all applicants. The running times are normally distributed, with a mean of 63 minutes and a standard deviation of 5 minutes. to the nearest minute, what is the qualifying time for the race?
Answer:
it is within 5 minutes ahead or behind 5 minutes of 64 minutes
let me know if it´s wrong
Use the distributive property to expand (simplify): 3(4x - 12yz)
Answer:
12x -36yz
Step-by-step explanation:
hope this helps!
Hello!
In order to simplify this expression, all we have to do is multiply 3 times the terms inside the parentheses:
3(4x-12yz)
12x-36yz
That's the final answer, because there are no like terms here, so we cannot simplify this expression any further.
Hope everything is clear.
Let me know if you have any questions!
#KeepLearning
What is the value of x in this equation?
8x + 40 = 180
Answer:
17.5
Step-by-step explanation:
180 = 40+ 8x
140 = 8x
17.5 = x
Answer:
17.5 is the correct answer to the question
Step-by-step explanation:
8x+40=180
8x=180-40
8x=140
X=140/8
X=17.5
An electrician needs to know that the relationship between amps, volts, and resistance is
expressed in the formula V = IR where V is volts, I is amps, and R is ohms. How large a
resistance is needed to produce 8 amps from 184 volts?
Answer:
R = 23 ohms
Step-by-step explanation:
Start with V = I*R. Solve for R: R = V/I
Here I = 8 amps and V = 184 volts, and so
R = (184 volts) / (8 amps) = 23 ohms
ANYONE KNOW THISSS NEED HELP ASAPPP CANT FAIL THIS!!!
el 14 es primo ayuda es urgente
Answer:
no es primo
Step-by-step explanation:
El 14 es un número compuesto. Es divisible por 1, por 2, por 7 y por 14.
help please ........
Answer: C
In vertex form a(x - h)2 + k, values of a indicate the horizontal stretch/compression. From there just knowing that values less than 1 stretch the graph, while values greater than 1 compress it. Graphing it out on your own by simply inputting values into x will make this pretty clear.
Hope this helps!
what are the values of f and d ?
Answer:
Step-by-step explanation:
1. 6f+45+15=180
6f=180-45-15
6f=130
f=130/6=65/6=21.66666666666666....
2. d=6f=130/6=65/6=21.66666666666666....
(They are vertical angles, opposite angles)
Calculate the volume of the cylinder giving your answer to 1 decimal. Picture linked. Please I have a math test tomorrow I'll give extra points for explanation!!!
Answer:
549.5 cm³
Step-by-step explanation:
___________________________________________________________
FORMULA USED IN THE QUESTION :-
Volume of a cylinder whose height is 'h' and radius is 'r' = [tex]\pi \times r^2 \times h[/tex]
___________________________________________________________
According to the question ,
Height of cylinder (h) = 7 cm
Radius of cylinder (r) = 5 cm
Volume of cylinder = [tex]\pi \times 5^2 \times 7 = 3.14 \times 25 \times 7 = 549.5 \: cm^3[/tex]