Answer:
9
Step-by-step explanation:
x^2 - 2 = 79
The first step is to get rid of the 2 on the left side. You do this by adding two on both sides. You should then get x^2 = 81.
Now, you have the just take the square root of 81, which is 9.
A geologist has ten rock samples in a bag and is going to use eight for class. What is the probability that the first three pulled out will be hematite, bauxite, and coal in that order, assuming all three are among the rock samples?
Answer:
1/56 chance
Step-by-step explanation:
3/8 x 2/7 x 1/6 = 1/56
Here answer dis ples
Answer: 152.07
Step-by-step explanation:
answer answer
Step-by-step explanation:
I think $ 152.07
original price is $150 markdown is 30% what is the retail price
Answer:
$105
Step-by-step explanation:
0.30×150=45
150-45=105
Find each variable find x and y
x and y are equal b/c the triangle is isosceles triangle
when we see the angles of the triangle we get 2 equal angles
so to find the value of each variable we've subtract the parallel sides from the angles which means x=180°-45° y=180°-45°
x=75° y=75
b/c of it's isosceles triangle the two sides and angles are equal
find the 9th term for 150,60,24
Answer:
a(9) = 150*(0.4)^8 = 0.098304
Step-by-step explanation:
This is a geometric sequence, because each new term is 0.4 times the previous term.
The general formula for a geometric sequence is a(n) = a(1)*r^(n - 1). Here, with a(1) = 150 and r = 0.4, we have:
a(n) = 150*(0.4)^(n - 1), and so
a(9) = 150*(0.4)^8 = 0.098304
PLEASE HELP ASAP!! PLEASE
Answer:
21 km
Step-by-step explanation:
I am not too sure if i did answer that correctly but the distance should not change even if it is in different directions
A shirt that normally costs $19.99 is on sale for 15% off. How much does the shirt cost after the discount? $22.99 $19.99 $16.99 $24.50
Answer:
C. $16.99
Step-by-step explanation:
The shirt cost after the discount will be $16.99. thus option C is correct.
How to calculate the third party discounts?Third party discount is the multiplication result of the maturity value of the original rate to the rate of interest and time period.
Thus, we get:
Third party discount = Maturity value × R × T (R in decimal form).
We have been given that a shirt that normally costs $19.99 is on sale for 15% off. we are asked to find the discount on the shirt.
Therefore,
19.99 x 15/100
19.99 x 0.15 = 2.99
Then subtract from the total amount;
19.99 - 2.99 = 16.99
Therefore, the shirt cost after the discount will be $16.99. thus option C is correct.
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Help? Giving brainly!!
Answer:
C
Step-by-step explanation:
Answer:
The answer is 17 - (-3) = 20
Step-by-step explanation:
Since the bird was already 17 feet above the water, and he dove 3 feet under, you add them to get the total distance. Anything minus a negative is equivalent to adding it, as the two negatives make a positve.
How many 1/4-cup servings are there in 10/4 cups of dried beans
Answer:
2 2/4
Step-by-step explanation:
40 tickets were sold for a concert, some at 75 cents and the rest at $1.25. if the total raised was $42, how many had the cheaper ticket. please i need this for an assignment
Answer:
34
Step-by-step explanation:
$1.25 = 125 cents.
$42 = 4200 cents
Tickets sold at 75 cents = x
Tickets sold at 125 cents = y
x + y = 40
75x + 125y = 4200
Multiply the first equation by 75
75x + 75y = 3000
75x + 125y = 4200
Subtract the the second equation from the first.
75x + 75y = 3000
- 75x + 125y = 4200
-------------------------------
0 - 150y = - 1200
Divide both sides by - 150
-150y/-150 = -1200/-150
y = 8
Substitute y = 8 into the first equation
x + y = 42
x + 8 = 42
x = 42 - 8
x = 34
34 tickets were sold for 75 cents
8 tickets were sold for $1.25
How to solve (x+1)/3 =(2(x-2))/5 .
Answer:
3x + 3 = (2x - 4)/5
3x + 3 = 10x - 20
13x - 17
Step-by-step explanation:
Answer: X = 17
Explaination:
If the cost of 12 pens is Rs.108, then what is the cost of 5 pens!!!
-Please write the full solution!
Answer:
45 rupees
Step-by-step explanation:
If the cost of 12 pens is 108 rs, then we need to find the cost for 1 pen. We can divide the 108 rupees by 12 to find the cost per pen. We get 9; now we know that each pen costs 9 rupees and we have 5 pens so 9 times 5 is 45 rupees.
The quadrilateral shown is a parallelogram. What is m<B?
A) 25°
B)55
C) 65
D) 115 degree
The answer is D. 115°
Answer:
The answer is also 115 on USA test prep.
There are 10 chocolates in a box.
7 of the chocolates have soft centres and 3 of the chocolates have hard centres. Kyla takes at random a chocolate from the box and eats it.
She then takes at random another chocolate from the box and eats it.
The probability of getting chocolates with harder center is 7/15.
What is the probability?Probability can be defined as the ratio of the number of favourable outcomes to the total number of outcomes of an event.
We know that, probability of an event = Number of favourable outcomes/Total number of outcomes
Given that, there are 10 chocolates in a box. 7 of the chocolates have soft centers and 3 of the chocolates have hard centers.
Probability of choosing first chocolate with hard center is
Total number of outcomes =10
Number of favorable outcomes =7
Now, probability is 7/10
Probability of choosing second chocolate with hard center is
Total number of outcomes =9
Number of favorable outcomes =6
Now, probability is 6/9
Probability of an event = 7/10 × 6/9
= 7/10 × 2/3
= 7/5 × 1/3
= 7/15
Therefore, the probability of getting chocolates with harder center is 7/15.
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"Your question is incomplete, probably the complete question/missing part is:"
There are 10 chocolates in a box. 7 of the chocolates have soft centers and 3 of the chocolates have hard centers. Kyla takes at random a chocolate from the box and eats it. She then takes at random another chocolate from the box and eats it. Find the probability that Kyla chooses both the chocolates with a hard center.
please answer correctly and quickly all question
Answer:
4) c
6) a, b
7) a
8) b, c
10) I'm not sure but I believe it is C.
Step-by-step explanation:
What is the range of f
Answer:
that is the range of f
Step-by-step explanation:
f is that ..that is f..f is that
What number should go in the box? 343834=300000+▢+3000+800+30+4
Answer:
40 000
Step-by-step explanation:
Find out what the numbers in the equation add up to excluding the box.
343834 - 300000 - 3000 - 800 - 30 - 4 = 40 000
Answer:
40000
Step-by-step explanation:
300000+3000+800+30+4 = 303834
So,
343834-303834 = 40000
Ans = 40000
A Sea-doo rental agency charges $100 as a flat rate, and $50 for every hour rented. Complete a table of values for this scenario. Then, draw a graph of this scenario with appropriate labels.
Answer:
so if it was one hour it would be 100+50
2 hours= 100+100
3=100+ 150
and so on
Step-by-step explanation:
Scott drove 754 miles in 13 hours how many miles would he drive in 8 hours
You would divide 13 by 754=58
Then 58 times 8= 464
So 464 miles
help I will give brainiest!!!!
Answer:
20.4 feet
Step-by-step explanation:
Name BOTH pairs of alternate interior angles. HELPPPPP PLEASE!!!!!!
Answer:
Angles 6 and 2
Step-by-step explanation:
They are in the "interior" of the figure, plus, ik how to do this
Hope this helped! Have a nice day! Plz mark as brainliest!!!
-XxDeathshotxX
Two waiters at a cafe each served 10 large fruit smoothies. The amount in each large smoothie is shown below. Witch Waiter's smoothies showed less variability
Answer:
Waiter’s B Large Smoothies showed less variability.
Step-by-step explanation:
First, we have to find the mean for Waiter A’s and Waiter B’s Large Smoothies.
1) Mean
Waiter A
19.1 + 20.1 + 20.9 + 19.6 + 20.9 + 19.5 + 19.2 + 19.4 + 20.3 + 20.9 = 199.9
199.9 / 10 = 19.99
Waiter B
20.1 + 19.6 + 20.0 + 20.5 + 19.8 + 20.0 + 20.1 + 19.7 + 19.9 + 20.4 = 200.1
200.1 / 10 = 20.01
Now, we have to use the Mean Absolute Deviation (MAD) to find which waiter’s smoothies showed less variability.
Waiter A
I19.99 - 19.1I = 0.89
I19.99 - 20.1I = 0.11
I19.99 - 20.9I = 0.91
I19.99 - 19.6I = 0.39
I19.99 - 20.9I = 0.91
I19.99 - 19.5I = 0.49
I19.99 - 19.2I = 0.79
I19.99 - 19.4I = 0.59
I19.99 - 20.3I = 0.31
I19.99 - 20.9I = 0.91
0.89 + 0.11 + 0.91 + 0.39 + 0.91 + 0.49 + 0.79 + 0.59 + 0.31 + 0.91 = 6.3
6.3 / 10 = 0.63
Waiter B
I20.01 - 20.1I = 0.09
I20.01 - 19.6I = 0.41
I20.01 - 20.0I = 0.01
I20.01 - 20.5I = 0.49
I20.01 - 19.8I = 0.21
I20.01 - 20.0I = 0.01
I20.01 - 20.1I = 0.09
I20.01 - 19.7I = 0.4
I20.1 - 19.9I = 0.2
I20.1 - 20.4I = 0.3
0.09 + 0.41 + 0.01 + 0.49 + 0.21 + 0.01 + 0.09 + 0.4 + 0.2 + 0.3 = 2.2
2.2 / 10 = 0.22
Now, we just have to compare those numbers.
0.63 > 0.22
So, Waiter B’s smoothies show less variability.
Evaluate the function. f(x)=-x^2+6x+4 Find f(−7)
Answer:
x=5.70156211,−0.70156211
Step-by-step explanation:
Answer:
-2054
Step-by-step explanation:
,,...................
What is the coefficient of x² -14x + 49=0 :
Wich one? :
A. a=2, b=-14, c=49
B. a=1, b=-14, c=49
C. a=-14, b=49, C=1
D. a=49, b=-14, C=1
E. a=1, b=49, C=-14
I need your help
What is the measure of 2U?
4
4
70°
O A. 70
O B. 74
O C. Cannot be determined
O D. 66
Answer:
A. 70°
Step-by-step explanation:
Since, TV = TU = 4
[tex] \therefore \: m \angle \: U = m \angle \: V \\(by \: isosceles \: \triangle \: theorem) \\ \because \: m \angle \: V = 70 \degree\\ \\ \therefore \: m \angle \: U = 70 \degree[/tex]
Help this is geometry! Help me please!
daniel is 1 1/5 times as tall as chris,if there total height is 341 cm what is chris height
To find the quotient of 8 ÷ 1/3 multiply 8 by (a 1/8 (b 1/3 (c 3 (d 8
Answer:
C
Step-by-step explanation:
To divide by fractions, we must multiply by the reciprocal of the fraction itself. 8 times 3/1 or just 8 times 3 is the answer
A bowling alley and a skating rink both offer birthday party rentals. The bowling alley costs $5 per person plus a $15 room rental fee. The skating rink costs $3 per person plus a $20 room rental fee. You have $50. If you want to invite as many people as possible, which location should you choose?
Follow the steps to decide on the party location.
1. Write an expression for the amount you would spend on a birthday party at the bowling alley. Let x represent the number of people you invite.
2. Write an expression for the amount you would spend on a birthday party at the skating rink.
3. How many people could you invite to the bowling alley? Please show how you found your answer.
4. How many people could you invite to the skating rink? Please show your work.
Answer:
The skating rink is better choice for more peopleStep-by-step explanation:
1. Expression for the amount you would spend on a birthday party at the bowling alley:
5x + 152. Expression for the amount you would spend on a birthday party at the skating rink:
3x + 203. Total amount is $50
5x + 15 = 505x = 35x = 77 people
4. Total amount is $50
3x + 20 = 503x = 30x = 1010 people
A new bank customer with $4,500 wants to open a money market account. The bank is offering a
simple interest rate of 1.9%.
a. How much interest will the customer earn in 30 years?
b. What will the account balance be after 30 years?
Ans
Step-by-step explanation:]\
To use the simple interest formula, I = Prt, we substitute in the values for ... The money you put in the bank is called the principal, P, and the bank pays ... of t years at an annual interest rate r, the amount of interest, I, earned is ... Nathaly deposited $12,500 in her bank account where it will earn 4% interes