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Ahat [919]
3 years ago
5

HELP ASAPPPPPPPPPPPPPPPPP

Mathematics
2 answers:
Illusion [34]3 years ago
5 0
B) Kilograms is the answer
eimsori [14]3 years ago
4 0

Answer:

b. Kilograms

Step-by-step explanation:

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Subtract (x² + 5x – 6) – (3x^2 – 7x + 1).<br> What is the difference?
Lorico [155]
1. Distribute the Negative Signs
2. Combine like terms
-2x^2 + 12x-7
4 0
3 years ago
Convert negative 31 degrees Fahrenheit to Celsius.
xeze [42]
Consider, pls, this option:
1. formula for conversion:
C= \frac{5}{9} (F-32);
2. according to the formula:
C=(-31-32)*5/9=(-7)*5=-35°
Answer: -35°C.
3 0
3 years ago
Hurryyyyyy!!! <br>which expression is equivalent to 7(1+3)? <br>a.1+21<br>b.7+21<br>c 7+3<br>d.7+4
n200080 [17]

Answer:

b. 7+21

Step-by-step explanation:

If you do 1+3=4 and then 4 times 7 that equals 28. When you do 7+21 that equals 28 too. So b is the answer

4 0
3 years ago
Lisa is 10 cm taller than her friend ian. Ian is 14 cm taller than jim. Every month, their heights increase by 2 cm. In 7 months
koban [17]

Answer:  Ian's height = x+14 = 69+14 = 83 cm

Explanation :

Let the height of Jim be x

Let the  height of Ian be x+4

Let the height of Lisa be x+4+10=x+14

Since their heights increase by 2cm every months

so after 7 months ,

Jim's  height = x+14

Ian's  height= x+4+14=x+18

Lisa's  height= x+14+14=x+28

According to question,

Sum of Ian's and Jim's height = 170cm

x+18+x+14 = 170\\2x+32 =170\\2x =170-32\\2x = 138

⇒x = \frac{138}{2}

⇒ x= 69cm

∴ Ian's height = x+14 = 69+14 = 83 cm

5 0
3 years ago
Read 2 more answers
I need help with this problem <br> x²﹣9x﹣15=﹣5
icang [17]

Move all terms to the left side and set equal to zero. Then set each factor equal to zero.

x=10,−1

7 0
3 years ago
Read 2 more answers
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