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denis23 [38]
3 years ago
6

I need help with these two

Mathematics
1 answer:
Alika [10]3 years ago
4 0

Answer:

19. A

20. A

Step-by-step explanation:

19. tan(53)=15/x

x(tan(53))=15

x=15/(tan53))

x=11.3 feet


20. tan(60)=12/x

x(tan(60))=12

x=12/(tan(60))

x=6.93, or 4sqrt3

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Katie is getting her laundry done it cost $2.25 per square foot of flowers added to the yard if she wants 12.4 ft.² of flowers h
7nadin3 [17]

Answer:

Katie needs to pay $27.9.

Step-by-step explanation:

Given;

Cost of per foot = $2.25

Number of  flowers in her yard = 12.4 square foot

We need to find how much she needs to pay.

Solution:

Now we know that;

1\ ft^2 = \$2.25

So for 12.4 ft^2 = Cost for 12.4 ft^2 .

By using Unitary method we get;

Cost for 12.4 ft^2 = 2.25\times12.4= \$27.9

Hence Katie needs to pay $27.9.

5 0
3 years ago
Estimate the quotient by rounding the expression to relate to a one-digit fact. Explain your thinking in the space below. a. 432
erastovalidia [21]

Answer:

5 remainder 50 and 2 remainder 100

Step-by-step explanation:

432 /73

432=400

73=70

70/400 = 005 Remainder 50

1275=1300

588=600

1300/600=2 remainder 100

8 0
3 years ago
And items are for $40 plus sales tax on the item is 8% what is the sales tax on the total cost
Setler79 [48]

Answer:

43.20 for the total cost of the item

6 0
3 years ago
Please help me answer this
yarga [219]

80,000going up by 10% you just add the 10% on

6 0
3 years ago
I need help on this and a few more i have been busy lately
BaLLatris [955]

Answer:

ok so we have to make it so we can get rid of one of the varibles by adding or subtracting

so lets multiply the first one by 4

120x+16y=4160

minus the second one so

108x=2160

divide by 108

x=20

then we just plug in

12(20)+16y=2000

240+16y=2000

-240

16y=1760

divide by 16

y=110

(20,110)

Hope This Helps!!!

8 0
3 years ago
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