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OLga [1]
3 years ago
10

An eccentric math teacher told his class that he would assign one problem on the first day of school, two

Mathematics
1 answer:
maks197457 [2]3 years ago
4 0

N is the day it is, so since we are trying to find the number of problems for the 10th day, n will equal 10. The quantity of problems is doubling each day, so you will create this rule:

2^n - 1

Now, to plug in the numbers:

2^10 - 1

Then we simplify:

2^9

And now we solve this equation:

2^9 = 512

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Angles one and two are supplementary. angle one measures 64 degrees more than angle two What is angle 2?
FinnZ [79.3K]

Answer:

angle 2 = 122

Step-by-step explanation:

we can substitute the angles for x and x+64

since they are supplementary, we know the some is 180

so we can form the equation x + x + 64 = 180

solve for x and we get 58

so angle 2 is 122

3 0
3 years ago
5x2 + 34x – 7 = 0<br> solve by factoring
likoan [24]

Answer:

x=\frac{1}{5} , -7

Step-by-step explanation:

Hope this helps!

3 0
3 years ago
How many minutes will it take the school bus to complete the 52-km trip back to the school at an average speed of 1.0 km/min?
Virty [35]

Answer:ddgftuewdsvgasvdgvfchxcbncbhua

Step-by-step explanation: ME NEED POINTZ

6 0
3 years ago
Jenny is going to tile her kitchen floor. She has taken out all the furniture and appliances. Jenny wants to know if she has got
Pavlova-9 [17]

Complete Question:

Jenny is going to tile her kitchen floor of area 30 m^2. She has taken out all the furniture and appliances. Jenny wants to know if she has got enough money to buy the tiles.The tiles are sold in packs, which cover 2m2 Jenny has a discount card which gives her 25% off any marked price at the DIY shop. The tiles are marked at £9.60 Jenny has £100 to spend on the tiles. How much extra does Jenny need to buy the tiles? Give your answer in pence.

Answer:

Extra amount needed by Jenny to buy the tiles = £8

Step-by-step explanation:

Floor area = 30.0 m^2

Area covered by a pack of tiles = 2.0 m^2

Number of packs needed = 30/2

Number of packs needed = 15

Price of a pack of tiles = £9.60

Discount = 25%

Jenny will pay 75% of the marked price

Amount Jenny will pay for a pack of tiles = 75% of 9.60 = 0.75*9.60

Amount Jenny will pay for a pack of tiles = £7.20

Amount Jenny will pay for 15 packs of tiles = 7.20 x 15

Amount Jenny will pay for 15 packs of tiles = £108

The amount of money Jenny currently has = £100

Extra amount needed by Jenny to buy the tiles = £108 - £100

Extra amount needed by Jenny to buy the tiles = £8

5 0
3 years ago
Sum of one-half of a number and 4 is -16. find the number
Lady_Fox [76]
X is the number
sum means add

sum of half a number and 4 means
(x/2)+4
result is -16

(x/2)+4=-16
minus 4 both sides
x/2=-20
times 2 both sides
x=-40
the number is -40
5 0
4 years ago
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