A class has 16 boys and 20 girls. A prefect is to be chosen from the class. If
each student is equally likely to be chosen, calculate the probability that the
selected prefect is:
(a) a boy (b) a girl
Answer:
a) 16/36 b)20/36
Step-by-step explanation:
16 + 20 = 36
36 = how many people are in the class all together
Sorry if it is wrong
3f=-2x-4 pls help with this
Answer:
I think it will be f= -2/3x-4/3
I think that is correct I wasn't sure what you were looking for
Step-by-step explanation:
I need help quick. ASAP.
Find each angle or arc measure
Answer:
17
Step-by-step explanation:
34/2 because the measure of the arc is half of what it would normally be because it touched the other side
Question 5 (1 point)
Calculate the area of this composite shape. Use the ti key on the calculator. Round answer
to tenths.
10 yd
12 yd
13 yd
13 yd
Area =
yd2
HELP!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
Answer:
3)
[tex] - |10| = - 10[/tex]
4)
[tex] |15| = 15[/tex]
5)
[tex] |7 - 4| = |3| = 3[/tex]
find the slope for (3,-6)(-1,4)
show the steps
Answer:
y= -5/2x + 3/2
Step-by-step explanation:
(3,-6). y=mx+b or -6=-5/2 × 3+b, or solving for b: b=-6-(-5/2)(3). b=3/2.
(-1,4). y=mx+b or 4=-5/2 × -1+b, or solving for b: b=4-(-5/2)(-1). b=3/2.
Plugging in the two points, hence y= -5/2x + 3/2
Please help me on this :) I will give brainleast
Answer:
B. 6 cans for 5.16
Step-by-step explanation:
A. 0.89$ for 1 can
B. 0.86$ for 1 can
C. 0.88$ for 1 can
D. 0.90$ for 1 can
Answer:
b
Step-by-step explanation:
store a - 0.89 each can
store b - 0.86 each can
store c - 0.88 each can
store d - 0.90 each can
Robert invested $7,600 in an account paying an interest rate of 1.9% compounded continuously. Assuming no deposits or withdrawals are made, how long would it take, to the nearest year, for the value of the account to reach $8,600?
Answer:
the answer is 7
Step-by-step explanation:
Compounded Continuously:
A=Pe^rt
A=8600
P=7600
r=0.019
8600=7600e^0.019t
[tex]\frac{x}{y} 8600\\ 7600[/tex] =[tex]\frac{x}{y} 7600e^0.019t\\7600[/tex]
1.1315789=e^0.019t
In(1.1315789)=e^0.019t
ln(1.1315789)=
\,\,0.019t
0.019t
6.5059977=t
t=7
thxxxx byee
what does standard devitation mean?
Answer:
a quantity calculated to indicate the extent of deviation for a group as a whole.
Step-by-step explanation:
t1ts
How would I get the slope of this triangle?
Answer:
-4/3
Step-by-step explanation:
if the triangle is anchored at (0, 0) you come down
from point ( 0, 48) to point ( 36, 0) so the slope is
y= rise/run = -48/ 36 = -4/3
HELP I NEED HELP ASAP HELP I NEED HELP ASAP HELP I NEED HELP ASAP HELP I NEED HELP ASAP
HELP I NEED HELP ASAP HELP I NEED HELP ASAP HELP I NEED HELP ASAP HELP I NEED HELP ASAP
Answer:
B
Step-by-step explanation:
Obviously the population is increasing.
(3297.44-2568.05)/2568.05 = .284... = 28.4% increase
(4234-3297.44)/3297.44 = .284 ... = 28.4% increase
B is the answer
-8 + 9 · 2 ÷ -3. please explain it to me step by step.
Answer:
-14
Step-by-step explanation:
Type it in a calculator
Answer:
-14
Step-by-step explanation:
positive 9 × 2 = 18 ÷ 3 = -6
negative 6 + negative 8 = - 14
a negative plus a negative always equals a negative
Hope this helps or if you don't understand you can use photo math <3
What is the range for
Answer:
In statistics, the range of a set of data is the difference between the largest and smallest values.
Step-by-step explanation:
Easy as pie
Answer and explanation
Answer: c
Step-by-step explanation: because you add the x's and then add the fractions
12345678910112131415161718192021212223242526272829303132333435363738394041424344454647484950
Answer: what what! Confused
Step-by-step explanation:
Answer:
yes
Step-by-step explanation:
If 3/4=x/16, then x =
Answer:
12
Step-by-step explanation:
We can try and get both sides to have a common denominator. If we multiply the left side by 4, we get 12/16=x/16. Here, it is clear that x=12.
Answer:
x is equal to 12/16
Step-by-step explanation:
If you divide 12/16 by 4 you will realize that it is equal to 3/4. Therefore x is equal to 12. That is a really explanation, but hope it helps!
If the ratio of grapes to walnuts to oranges is 6:6:12, how many grapes are there if the total number of fruits is 192?
Answer:
48
Step-by-step explanation:
6+6+12 = 24
192/24 = 8
8*6 = 48
(Ratio is 48:48:96)
Answer:
48
Step-by-step explanation:
48
Step-by-step explanation:
6+6+12 = 24
192/24 = 8
8*6 = 48
(Ratio is 48:48:96)
sorry I copied you harpsickle213 but i needed the 7 points
kim rented skates for h hours.The rental free was $2.50 per hour. she paid a total a 2.5h=20 b 1.5h=10 c 1.5h=20 d 2.5h=10l of $20
Answer:
2.5h=20
Step-by-step explanation:
:D
Find the product of 6* V12
O 36/2
O 65
0 5/6
04/18
Answer:
6√2
Step-by-step explanation:
√6 x √12 = √72
= 6√2
OR
6 x √12 = √72
= 8.485281374238570
Answer:
b
Step-by-step explanation:
Make the expression below a perfect square by adding in a constant value: x^2+14x+_
Help pleaseeeeeeeeee
9514 1404 393
Answer:
47 -6√10
Step-by-step explanation:
As you know, the area of a square is the square of the side length. It can be helpful here to make use of the form for the square of a binomial.
(a -b)² = a² - 2ab + b²
(√2 -3√5)² = (√2)² - 2(√2)(3√5) + (3√5)²
= 2 - 6√10 + 3²(5)
= 47 -6√10
__
Check
√2-3√5 ≈ -5.29399 . . . . . . . . note that a negative value for side length makes no sense, so this isn't about geometry, it's about binomials and radicals
(√2-3√5)² ≈ 28.02633
47 -6√10 ≈ 28.02633
PLEASE HELP NOT WILL HELP ME :,(
I'll make brainliest and give extra points
The following cone has a height of 4 inches and a volume of 12π. 4 in. What is the radius of the cone?
Answer:
3 in.
Step-by-step explanation:
volume = ⅓πr²h
⅓πr²h=12π
r²h=36
r²=9
r = 3 inches
PLEASE IM BEGGING YOU
Which is closest to the number of hot chocolates the owner would expect
to sell when the temperature is 38°F?
19
15
23
Answer: the answer is 19
Step-by-step explanation:
Giving brainliest awnser if you help me with this
What is the percent of increase from 4,000 to 10,000?
Answer:
150%
Step-by-step explanation:
Percent change = [tex]\frac{New - Old}{|Old|}[/tex] × 100%
=> [tex]\frac{10000-4000}{4000}[/tex] × 100
=> [tex]\frac{6000}{4000}[/tex] × 100 = 150% (increase)
someone, please help !! these are direct and inverse variations, algebra 2. i need them asap !
Answer:
3, 20, 2, and 2.5
Step-by-step explanation:
For each question, they gave you an x and y value. If you substitute them into the equation and then solve for k, you get your answer.
On the first one, x is 12 and y is 1/4. If you put those into the equation they gave you y = k/x, you get 1/4 = k/12
3/12 is 1/4 so the first k is 3.
Second one y = k/x. x is 4 and is 5. So 5 = k/4
20/4 is 5, so the second k is 20.
Carl's class is collecting canned food for a food drive. If the class collects 3 2/3 pounds on the first day and 4 1/4 pounds on the second day, how many pounds of food have they collected so far?
Answer:
7 11/12
Step-by-step explanation:
3 2/3 + 4 1/4 = 3 8/12 + 4 3/12 = 7 11/12
1.35b = 40.5
what is the value of b ?
Answer:
b=30
Step-by-step explanation:
If the fifth term of an arithmetic sequence is 11 and the common difference is 4, then the sixth term of the sequence is _______.
Answer:
15Step-by-step explanation:
11+4=15
The sixth term of an arithmetic sequence with fifth and common difference of 11 and 4 respectively is 15
Arithmetic sequence formulaaₙ = a + (n - 1)d
where
a = first termd = common differencen = number of termsTherefore,
11 = a + 4d
d = 4
Hence,
11 = a + 4(4)
11 = a + 16
a = 11 - 16
a = -5
Therefore, the sixth term is as follows
a + 5d = a₆
-5 + 5(4) = a₆
a₆ = -5 + 20
a₆ = 15
learn more on arithmetic sequence here: https://brainly.com/question/11242271