Answer:
3[tex]\sqrt{5}[/tex] which is approx 6.71
Step-by-step explanation:
[tex]\sqrt{45}[/tex] = [tex]\sqrt{9}[/tex]·[tex]\sqrt{5}[/tex] = 3[tex]\sqrt{5}[/tex]
A creature on the moon throws a rock off a cliff. The height of the rock above the surface of the moon, in meters, t seconds after it is thrown is given by h(t) = −t 2 + 8t + 10. When does the rock hit the surface of the moon?
Answer:
9.099 seconds
Step-by-step explanation:
The rock hits the surface of the moon when is t is 0.
[tex]-t^2 + 8t + 10 = 0\\t^2 - 8t - 10 = 0[/tex]
Use the quadratic formula
t = -1.099 and 9.099
Since time can't be negative, the answer is t = 9.099
At a restaurant last week, 4 times as many hot dogs were sold as hamburgers. The
restaurant sold a total of 588 hot dogs last week. Which equation can be used to find
how many hamburgers were sold at the restaurant last week?
4*n-588; n = 147 hamburgers
4xn-588; n = 122 hambungers
4x588 = n;n= 2,352 hamburgers
04x588 - nn- 2,022 hamburgers
Answer:
4×588= n;n=2,352 hamburgers
The equation
5
w
+
16
=
61
models how many weeks,
w
, it takes a puppy to reach a weight of
61
ounces after being born. If the puppy gains the same amount of weight each week, how many weeks does it take the puppy to reach
61
ounces?
Answer:
9 weeks
Step-by-step explanation:
5w+16=61
Subtract 16 from both sides of the above equation.
5w+16-16=61-16
5w = 45
w = 9
-9 = X / -6 what does the variable
Answer:
x= 54
Step-by-step explanation:
-9=x/-6
x-6 on both sides
54= x
The volume of a cylinder with radius r and height his v = 7h
A barrel in the shape of a circular cylinder is 30 inches in diameter and 42 inches tall.
Approximately what is the volume of the barrel in gallons?
(Use 1 gal - 231 in)
Answer: 128.5 gallons
Step-by-step explanation:
V= πr²h
V=π15²42
V= 29688.05058in³ ÷ 231 ≈ 128.5 gallons
Note- It would mean the world to me if you could mark me brainliest!
y varies Directy with
the square
of x. if
y=24 when x=2
Find y when
X= 5
Answer:
When X=5, Y=60
Step-by-step explanation:
24 | 2
36 | 3
48 | 4
60 | 5
Plsss help plssssssss
Answer:
x = 2
y = 6
Step-by-step explanation:
We have a system of equations and are asked to solve for x and y.
y = -2x + 10
y = 3x
Since both equations start with y, we can subtitute.
3x = -2x + 10
Solve for x :
Add 2x to both sides :
5x = 10
Divide 5 from both sides :
x = 2
Now substitute x in the second equation because it's more easier :
y = 3(2)
3(2)
6
y = 6
Increase 60 by 25%.
Answer:
75
Step-by-step explanation:
25% * 60 = 15
60 + 15 = 75
Answer:
the answer is 75
Step-by-step explanation:
i found out that that 25% of 60 was 15 because thats what i get when i divide it by 4. so then i added 15 ot 60 and it gave me 75
(8b+12)+(3n+6)+(9b-4)
Answer:
17b+3n+14
Step-by-step explanation:
no any step
okk
finished
Answer:
Step-by-step explanation:
(8b+12)+(3n+6)+(9b-4)
Remove the parentheses:
8b+12+3n+6+9b-4
Group like terms:
8b+9b+3n+12+6-4
Add the similar element:8b+9b=17b
=17b+3n+12+6-4
add/subtract the numbers:12+6-4=14
=17b+3n+14
PLZ HELP FAST I NEED IT RN
Answer:
16 units
Step-by-step explanation:
Answer:
16 units
Step-by-step explanation:
JM- 3 units long
JK- 5 units wide
KL-3 units long
ML-5 units long
Perimeter is the sum of all 4 sides meaning:
3+5+3+5=16
16 units is the answer
For which inequality is .r = 5 a solution?
А х<2
в. х> 9
ОО
) с. х< 18
OD. x> 42
Answer:
The answer is C x<18 indirectly saying 5<18 the other options has no match for it
A certain bacteria triples in a Petri dish every hour. Which formula should be used to determine the bacteria after x hours assuming uninhibited growth and there was initially 500 colonies.
a
500\ \left(1.03\right)^x
b
500\ \left(3\right)^x
c
500\ \left(2\right)^x
d
500\ \left(1.02\right)^x
Answer:
500(3)^x
Step-by-step explanation:
Got it right on edge
The distance Jane jogs in 20 minutes is 8 miles. At this rate, how many miles will he run in 60 minutes?
Answer: the answer is 24 miles
Step-by-step explanation:
Answer:
24 miles
Step-by-step explanation:
the ratio is 20:8
If we wanna find the ratio for 60 mins, you have to multiply both sides by three.
Then, we get 20/8 = 60/24
So, Jane jogged 24 miles in sixty minutes
please help and show work
9514 1404 393
Answer:
h = 12 m
Step-by-step explanation:
Sides of the triangle are proportional.
(3.6 m)/(1.2 m) = h/(1.2 m + 2.8 m)
(4 m)(3.6/1.2) = h . . . . . multiply by 4 m
h = 12 m
Hope has driven 19 miles. She averaged 47 miles per hour. How many more hours must she drive to travel a total of 739 miles?
Pls help I only have until 11:59
Compute the average rate of change of f(x) = 2x - 1 from x1 = 1 to X2 = 3.
Answer:
i hope this help you
What is the value of x2?
(5x)
0 14
110
110
017
70
Answer: 14
Step-by-step explanation:
110 + 110 + 70 + 5x= 360 ( total number of angles in a quadrilateral is 360 degrees)
290+5x= 360
5x= 360 - 290= 70
x= 70/5= 14
Marcie Bruno received a 4.2% merit increase and a 2.75% cost-of-living increase
after her quarterly review. Her new weekly salary was $788.92. What was her
weekly salary prior to the increases?
Answer:
734.1
Step-by-step explanation:
100%=788.92
4.2%=33.13
2.75%=21.69
33.13+21.69=54.82
788.92-54.84=734.1
8 less a number is less than or equal to 17
Answer:
less than
Step-by-step explanation:
8 is less than 17
Answer :n ≤ 25
Step-by-step explanation:
n - 8 ≤ 17
n - 8 (+8) ≤ 17 (+8)
n ≤ 25
n ≤ 25 is your answer
help me
18 meters= how many centimeters
Answer:
1800
Step-by-step explanation:
can i have brainliets, please? hee hee
18m
to convert into cm;
=18x100
=1800cm
The average length of the dragon used in the performance is 12 feet. The dragon is divided into 9 sections. How long is each sections
Answer:
do it urself sorry i letterely dont know
Step-by-step explanation:
6
Divide 2m in the ratio 9-1
Answer:
Step-by-step explanation:
First, add up the two numbers in the ratio to get 8. Next divide the total amount by 8, i.e. divide £40 by 8 to get £5. £5 is the amount of each 'unit' in the ratio.
To calculate the ratio of an amount we divide the amount by the total number of parts in the ratio and then multiply this answer by the original ratio. We want to work out $20 shared in the ratio of 1:3.
Convert [tex]\p\frac{5\pi }{18}[/tex] radians into degrees.
Answer:
50
Step-by-step explanation:
Formula: 1rad × 180/π = 57.296°
Nine people are going to share a 128-ounce bottle of soda. How many ounces will each person get to drink?
An online game store charges a $20 membership fee and $2.50 for each downloaded game. Write an
equation to model this situation Ifa new member paid the store $67.50 in the last three months, how
many gentes were downloaded?
Answer:
3?
Step-by-step explanation:
First I added 20 dollars to 2.50 and I got 22.50 than I divided 67.50 / 22.50 which gave me 3, so I guess the answer is 3. Hope this helped!
Can someone please help me I really need help
Answer:
2
Step-by-step explanation:
common sense
Solve for xxx in each of the figures below and mark the correct value.
Assume that the lines are parallel.
Answer:
Picture 1:
12x+1=109
12x=108
x=9
Picture 2:
2x-3=57
2x=60
x=30
Let me know if this helps!
a new computer comapny has its sales increasing by 3% each week. A second computer company has its sales decreasing by $100 each day. the first company had $500 in sales when the second company had $7000 in sales. after approximately how many weeks will the sales for the two companies be the same?
A. 9
B. 13
C. 49
D. 63
Answer:
49
Step-by-step explanation:
evaluate x2 when x=-2
Answer:
-4
Step-by-step explanation:
x2 is x*2.
If x=-2, then the equation would be -2*2 which is -4.
Answer:
-4
Step-by-step explanation:
x2 when x=-2
-2 (2)
-2 · 2
-4
What is the median of the data set?
38, 65, 72, 67, 80
A
67
B 64
C
72
D 65
Answer:
A) 67
Step-by-step explanation:
Answer:
Answer is A.67
Step-by-step explanation:
I hope it's helpful!