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Lady_Fox [76]
4 years ago
11

Helppppppppppp me asap

Mathematics
2 answers:
Eduardwww [97]4 years ago
6 0

Answer:

-6

Step-by-step explanation:

Since the temperature was -13 and the temperature change was 7 degrees, you have to add 7 to -13. Since -13 is a negative number you could subtract 7 from -13 and get the same answer. Basically subtract 7 from 13 and add a negative sign in front of it.

AfilCa [17]4 years ago
3 0

Answer:

17 degrees at 9

Step-by-step explanation:

i dont know how i got it

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Which of the following statements is true?
IrinaVladis [17]

Answer:

option C is correct.

Step-by-step explanation:

Checking equation A

(9x^3 + 12x) + (16x^3 -4x+1)= 24x^3 +16x-1\\9x^3+16x^3+12x-4x+1=24x^3+16x-1\\25x^3+8x+1\neq 24x^3+16x-1

Checking equation B

(3x+2x^2-4)-(x^2+x-5)=2x+x^2-9\\3x-x+2x^2-x^2-4+5=2x+x^2-9\\2x+x^2+1\neq 2x+x^2-9

Checking equation C

(10x^3+2x^2-11)+(9x^2+2x-2)=10x^3+11x^2+2x-13\\10x^3+2x^2+9x^2+2x-11-2=10x^3+11x^2+2x-13\\10x^3+11x^2+2x-13=10x^3+11x^2+2x-13

Checking equation D

(-7x^2+12)-(5-4x^2)=11x^2-17\\-7x^2+4x^2+12-5=11x^2-17\\-3x^2+7\neq 11x^2-17

Hence, only option C is correct.

6 0
4 years ago
On November 1st, Halloween candy is discounted 60%. If the original price of a bag of candy corn was $5, what is the final price
Svetllana [295]

Answer:

$2.20

Step-by-step explanation:

Original price (before discount and before tax): $5

Discount is 60%.

Amount of discount is: 60% of $5 = 0.6 × $5 = $3

Price after 60% discount: $5 - $3 = $2

Tax is 10%.

Amount of tax is: 10% of $2 = 0.1 × $2 = $0.20

Final price = price after discount + tax = $2.00 + $0.20 = $2.20

7 0
2 years ago
Bella has $540 to spend at a bicycle store for some new gear and biking outfits. Assume all prices listed include tax.
Norma-Jean [14]

Step-by-step explanation:

$540 - $353.59 = $186.41

$186.41 - $4.98 = $181.43

$181.43 - $38.67 = $142.8

She has $142.8 left and if she want to buy the outfits for $49.20 she is going to have $93.6 left

5 0
3 years ago
3-4(2x-5)=-2(-11+3x)-2x
poizon [28]
45-16x is the answer
5 0
4 years ago
Read 2 more answers
The equation of a circle is given below.
Nataliya [291]

Answer:

(h,k) = (32,-4)

r = 32

Step-by-step explanation:

The general equation for a circle is given by:

(x-h)^2+(y-k)^2=r^2   (1)

where (h,k) is the center of the circle and r is the radius.

You have the following equation:

x^2+(y+4)^2=64x   (2)

You first need to complete squares in order to obtain an equation of the form (1). Thus, you have that the second term must be in a perfect square trinomial:

2b = 64

b = 32

Then, you have to sum 32^2 and also subtract the same number in the expression (2):

x^2-64x+(y+4)^2=0\\\\(x^2-64x+32^2)+(y+4)^2-32^2=0\\\\(x-32)^2+(y+4)^2=32^2

you compare the last result with expression (1) and obtain that the raiuds of the circle is r = 32

Furthermore, the center of the circle is (h,k) = (32,-4)

5 0
4 years ago
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