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JulijaS [17]
3 years ago
8

I need help with these two questions please!

Mathematics
2 answers:
inysia [295]3 years ago
8 0
Rectangle is the answer!!








Novay_Z [31]3 years ago
6 0
The first one is rectangle
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Use the rule y = 3x + 1 to fill in the missing entries in the input-output tables.
zalisa [80]

Answer:

y=4, y =16, x=10, x=15

Step-by-step explanation:

Plug the x values in the x place and then solve from there and for y values plug em in and easy answer

6 0
3 years ago
A compnay has a spherical storage tank which is in need of painting. The radius of the tank is 36ft. The type of paint used will
Alexxandr [17]
The surface area of a sphere is:  4pr^2

(4p(36^2)ft^2)(gal/160ft^2)

(5184p ft^2)(gal/160ft^2)=32.4p gal which is approximately:

101.78 gal

So the company must purchase 102 gallons of paint.
7 0
3 years ago
I'm in a rush & I really need to solve these two problems:
Elenna [48]
1. 23.5 x 2.3 = 54.05
when you are multiplying decimals you have to line up the decimal point.
example:
23.5
2.3

2. 12.34 x 4.321 = 53.32114
once again you need to line up your decimals when multiplying two decimals.
example: however I had to add a zero to the number 12.34 so everything would line up correctly. I hope you understand that.
12.340
4.321
5 0
3 years ago
Solve 5x^2+2x=1 using either factoring, square root method, completing the square or quadratic formula.
wolverine [178]

Answer:

x = -1 ± √6 / 5

Step-by-step explanation:

Solve 5x^{2} + 2x = 1

move 1 to the left side of the equation by subtracting it from both sides.

5x^{2} + 2x - 1 = 0

Use the quadratic formula to find the solutions.

-b± \sqrt{b^2 - 4 (ac)}/ 2a

Substitute the values a = 5 , b = 2, and c = -1 into the quadratic formula and solve for x

-2±\sqrt{2^2 - 4(5 - 1)}/ 2 ⋅ 5

Simplify.

x = -2 ± 2 \sqrt{6}/ 10

x = -1 ± \sqrt{6}/ 5

Exact Form:

x = -1 ± \sqrt{6}/ 5

4 0
3 years ago
Can I get some help..please?​
krek1111 [17]

Answer:

-2 and 21/50

Step-by-step explanation:

PEMDAS says that paranthases go first, so we solve 2 and 1/5 minus 33/12. 2 and 1/5 simplifies to the improper fraction, 11/5. Then we find a common denominater between 11/5 and 33/12 to get 60. 11/5=132/60, and 33/12=165/60. (132/60)-(165/60)=-33/60. Then we multipl that by 4 and 2/5, which can simplify to the improper fraction, 22/5. (22/5)*(-33/60) is -726/300, and simplifies to -2 and 21/50. Hope this helps!

7 0
2 years ago
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