9514 1404 393
Answer:
100
Step-by-step explanation:
4 = 2² . . . case 1
9 = 3² . . . case 2
16 = 4² . . . case 3
The number of blocks is the square of the number 1 greater than the case number. For case 9, the number of blocks is (9+1)² = 10² = 100.
100 blocks are needed for the 9th case.
Solve each single-step equation. Show your work. a -2 + 3 = -2
Answer:
a=−3
Step-by-step explanation:
a−2+3=−2
Step 1: Simplify both sides of the equation.
a−2+3=−2
a+−2+3=−2
(a)+(−2+3)=−2(Combine Like Terms)
a+1=−2
a+1=−2
Step 2: Subtract 1 from both sides.
a+1−1=−2−1
a=−3
can someone help please!
Answer:(6, 5)
Give me brainliest
Hlw to find ghe area of a parallelogram
Answer:
Hope this helps! :')
Step-by-step explanation:
Opposite sides are equal in length and opposite angles are equal in measure. To find the area of a parallelogram, multiply the base by the height. The formula is: A = B * H where B is the base, H is the height, and * means multiply
bag contains 8 yellow marbles and 24 blue marbles. If a representative sample contains 2 yellow marbles, then how many blue marbles would you expect it to contain? Explain
Mona needs to photocopy a 14.5 centimeters wide by 15 centimeters long picture. She wants to enlarge the picture so that its length will be
37.5 centimeters. How wide will the enlarged picture be?
O a
38.8 cm
Ob
37 cm
ос
93.75 cm
Od
36.25 cm
Answer:
The enlarged picture will have a width of 35.8 cm
Step-by-step explanation:
We can solve this question by proportions, using rule of three.
When the length is of 15 centimeters, the width will be of 14.5 centimeters. What is the width when the length is 37 centimeters?
15 cm - 14.5 cm
37 cm - x
Applying cross multiplication
[tex]15x = 14.5*37[/tex]
[tex]x = \frac{14.5*37}{15}[/tex]
[tex]x = 35.8[/tex]
The enlarged picture will have a width of 35.8 cm
Answer:
36.25 cm
Step-by-step explanation:
37.5 divided by 15 is 2.5 then multiply 14.5 by 2.5 and your answer will be 36.25 cm.
I hope this helps the last answer you got was close but incorrect. I really hope I get brainlyiest. :)
5. 7 is 1/4 of which number?
Answer:
22.8
Step-by-step explanation:
5.7 multiplied by 4 is 22.8 as 5.7 is 1/4 or 22.8
In the number 6.172 the digit 2 represents 2 in the whats place?
The decrease in price of an article is 5% of the original price. If the new price is $ 285, what was
the original price?
hi, i need these answers quickly. i will do the last 3. you don’t have to do those.
Answer:
1. x = 15; acute
2. x = 120; obtuse
3. x = 41; right
4. x = 104; obtuse
5. x = 25; right
6. x = 64; acute
7. x = 72; acute
8. x = 32; obtuse
9. x = 40; right
HELP ME PLZ ITS DUE SOON THX
Acetaminophen is a common pain reliever and fever reducer. Here is a graph showing the amount of acetaminophen, in milligrams, in an adult's body at different times after they take a normal dose.
1. What is the vertical intercept? What does it mean in this situation?
2. What fraction of the medicine remained after one hour?
3. Write an equation that represents the amount of medicine, a, after t hours.
Answer:
1.1000
2.3/4
3.f(x)=1000(1/4)^X
Step-by-step explanation:
Angelo the Alligator is laying out next to a perfectly circular pond. He is 25 feet from the edge of the pond and 45 feet from the point of tangency. Determine the radius of the pond.
9514 1404 393
Answer:
28 feet
Step-by-step explanation:
Let r represent the radius of the pond. Then the Pythagorean theorem gives us the relation ...
(25+r)² = r² + 45²
625 +50r +r² = r² +2025
50r = 1400 . . . . . . . . . . . . . subtract r²+625 from both sides
r = 28 . . . . . . . . . . . divide by 50
The radius of the pond is 28 feet.
Find 50% of 36:
Find 25% of 36:
Find 75% of 36:
Answer:
18, 9, 27
Step-by-step explanation:
36 ÷ 2 = 18. Dividing by 2 is the same as multiplying by 50%.
36 ÷ 4 = 9. Dividing by 4 is the same as multiplying by 25%.
Since 25% • 3 = 75%, you can do 9 (from previous) • 3 to get 27.
this is what i have so far, but i’m not sure what i need to fix.
Answer:
it looks good
Step-by-step explanation:
Rita charged $126 for a DVD player at an interest rate of 15.9%. How much will Rita have to pay for the DVD player after 3 years if she makes no payments?
Answer:
$ 129.34 will be the total payment made after two months if she made no initial payment
Step-by-step explanation:
annual interest rate = 15.9 %
initial charge = $126
to get the annual interest paid = 15.9% of $126
= 0.159 * $126 = $20.03
monthly interest paid would be = annual interest / 12 months
= 20.03 / 12 = $1.67
hence in 2 months Rita will pay = initial charge + monthly interest * 2
= $126 + $ 1.67 *2 = $ 126 + $3.34
= $ 129 .34
Interest rates are always given an annual interest rate.
Your Welcome :D
(P.S Brainliest Would Be Appreciated)
WILL GIVE BRAINLIEST Stefan is making new cushion covers for a chair. There are three sizes of
cushions on the chair. What is the surface area of the seat bottom cushion?
A. 990 square inches
B. 846 square inches
C. 320 square inches
D. 756 square inches
Answer: 990
Step-by-step explanation:
(18 x 21) + (3 x 18) + (21 x 18) + (2)(21x3) + (3 x 18) = 990
Answer:
A. 990
Step-by-step explanation:
Find P(5) when p = 0.10.
Suppose that mean retail price per gallon of regular grade gasoline is $3.45 with a standard deviation of $0.10 and that the retail
price per gallon has a bell-shaped distribution.
NOTE: Please use empirical rule approximations for this problem.
a. What percentage of regular grade gasoline sells for between $3.35 and $3.55 per gallon (to 1 decimal)?
Lololo
%
b. What percentage of regular grade gasoline sells for between $3.35 and $3.65 per gallon (to 1 decimal)?
%
c. What percentage of regular grade gasoline sells for less than $3.55 per gallon (to 1 decimal)?
%
The percentage of regular grade gasoline sells for between $3.35 and $3.55 per gallon is 64%
The percentage of regular grade gasoline sells for between $3.35 and $3.65 per gallon is 81.5%
The percentage of regular grade gasoline sells for less than $3.55 per gallon is 84%
Given :
Mean retail price is $3.45
Standard deviation is 0.10
Empirical rule states that 99.7% of data is observed in normal distribution that lies within 3 standard deviations.
68% of data lies under 1 standard deviation
95% lies under 2 standard deviations
99.7% lies under 3 standard deviations
there are 3 standard deviations on the left and right of mean . The graph is attached below
Mean is 3.45. standard deviation is 0.1
3.45+0.1=3.55
3.45-0.1=3.35
So 3.35 and 3.55 lies under first standard deviation
The percentage between $3.35 and $3.55 is 68%
3.45 +0.1+0.1=3.65
3.35 lies on 1 standard deviation on left and 2 deviations on the right of mean
So , 34+34+13.5=81.5%
The percentage between $3.35 and $3.65 is 81.5%
For gasoline sells for less than 3.55 , there are 3 standard deviation on the left of mean and 1 standard deviation on the right
0.15+2.35+13.5+34+34=84%
Learn more : brainly.com/question/14433254
PLEASE HELP ASAP 20 POINTS
The newly proposed city park is rectangle shaped. Blake drew a scale drawing of the park and used a scale of 1 cm: 20 ft
1) If the width on the scale drawing of the city park is 25 centimeters, what is the actual width of the park?
A) 250 feet
B) 400 feet
C)500 feet
D)750 feet
2) If the width on the scale drawing of the city park is 25 centimeters and the length is 30 centimeters, what is the actual area of the park?
A) 75,000 ft^2
B) 110,000 ft^2
C) 300,000 ft^2
D) 750,000 ft^2
Answer:
1.A
2.B
Step-by-step explanation:
I hope it helps...........
Answer:
1:A
2:B
Step-by-step explanation:WELCOMEEEE HAVE A GREAT DAY :)))((()()(
Lorraine threw a football 9.89 meters. Belinda threw the football 12.20 meters. How many meters farther did Belinda throw the football than Lorraine?
Answer:
Belinda threw the ball 2.31 meters farther than Lorraine.
Step-by-step explanation:
To find how many meters farther Belinda threw the ball, we subtract Belinda's distance from Lorraine's distance.
We have that:
Lorraine threw a football 9.89 meters.
Belinda threw the football 12.20 meters.
12.20 - 9.89 = 2.31
Belinda threw the ball 2.31 meters farther than Lorraine.
The given equation has been solved in the table.
Step
Statement
2
1
Źr – 9 = –13
2
- 9 + 9 = -13 + 9
3
= -4
4
ယ်
NICO
=
5
r = -6
In which step was the addition property of equality applied?
A.
step 2
B.
step 3
OC.
step 4
D.
The addition property of equality was not applied to solve this equation.
Answer:
step 2
Step-by-step explanation:
Answer:
A
Step-by-step explanation:
step 2
FCDEF is congruent to MNPQ, then angle P is congruent to
Answer:
The angles of both figures are listed in the same order. The first angle of the first one is congruent to the first angle of the second, and the second angle of the first one is congruent to the second angle of the second figure, and so on.
Step-by-step explanation:
You have a repeated 'F' in naming the first figure, so I think you made an error. But the rule in my answer is true and you can apply it.
Luis and Erin are playing a game. They each start with 0 points.At the end of the game, Luis has 250 points, and Erin has
-250 points.
(A) Erin has lost 250 points.
(B) Luis has 250 more points than Erin.
(C) Erin and Luis have a total of 500 points.
(D) Erin and Luis have an equal number of points.
Answer:
A) Erin has lost 250 points.
Step-by-step explanation:
The reason A is correct is because Erin has -250 points, which means he went down or lost them.
In the cone below, the height of the cone is 17 cm and the radius is 8 cm.
Determine the slant height, h, of the cone. Round your answer to the nearest
tenths of a centimeter.
17 cm
8 cm
Answer: 18.8cm
Step-by-step explanation:
Your gonna use the equation (a^2)+(b^2)=(c^2), then you want to square root the number you get.
So (17*17)+(8*8)= 353
So then square root of 353 is 18.8
What is the data correlation in the scatter plot below?
Negative
No correlation
Positive
You have a bag with 10 pennies, 10 quarters, and 10 dimes. You draw 2 coins without replacement. Which action, performed before the draws, increases the probability of drawing 3 quarters in a row? O removing pennies and dimes from the bag O adding dimes to the bag O adding pennies to the bag o adding pennies and dimes to the bag
Answer:
Removing pennies and dimes from the bag
Step-by-step explanation:
From the beginning, we have a 1 in 3 chance of drawing a quarter. If we were to add dimes and/or pennies to the bag, this would make us more likely to draw a dime or a penny, and less likely to draw a quarter. Proportionally, we want the most quarters in the bag to get the highest probability of drawing a quarter from the bag.
expanded -8(-2x-5)
please give answer
Answer:
-80
Step-by-step explanation:
We have to do the parentheses first because it's part of PEDMAS.
-2x-5= 10
Next, we take 10 times -8
-8 x 10= -80
There you go! Hope this helps!
The sum of the areas of all the faces of a 3D object is called:
(a) Area
(b) Surface Area
(c) Volume
(d) Perimeter
( i dont know why its hard for me but welp-)
Answer:
Surface area
Step-by-step explanation:
The sum of the areas of all the faces of a 3D object is called Surface Area
Answer:
Step-by-step explanation:
C=Volume
WRITE YES IF THE EQUATION IS RIGHT AND NO IF ITS WRONG PLS!
22.) If point C(8,4) is reflected over the the x-axis. Where is point C! located ? ( )
Answer:
Step-by-step explanation:
Since you are reflecting about the x axis you keep the x coordinate the same and multiply the y coordinate by -1 so you have point (8,-4)
Find the missing length.
C =
✓ [?]
9
4
Pythagorean Theorem: a2 + b = c2
Enter
Answer:
Roughly 9.85 Exact: 9.848857081796105
Step-by-step explanation:
4^2 = 16
9^2 = 81
81 + 16 = 97
√97=9.848857081796105