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zalisa [80]
2 years ago
5

Find the variable for number 7.

Mathematics
2 answers:
Fofino [41]2 years ago
5 0

Answer:

16

Step-by-step explanation:

nikklg [1K]2 years ago
5 0

Answer:

x= 16

Step-by-step explanation:

The two angles are equal so set them equal to each other.

5x-7 = 8x- 55

-7 = 3x - 55

3x= 48

x= 16

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Please help and please give explanation
Yuki888 [10]

Answer:

cylinder surface area = 201.06in²

surface area of cone = 56.56in.²

Step-by-step explanation:

cylinder surface area formula = 2πrh + 2πr²

refer the pic

cone surface area formula = πr ( r + √h² + r² )

refer the sec pic

surface area of the solid

= ( 201.06 + 56.56 ) in.²

= 257.62in.²

= 258in.²

4 0
2 years ago
Lisa uses her hair dryer daily dryer uses 1500 watts. it take 10 mintes to dry her hair each time she uses it. how much would it
Volgvan

Answer:

Step-by-step explanation:

The answer is $11.55 for the week.

1) Since 1 watt is 0.001 kilowatts, 1500 watts is 1.5 kilowatts.

2) Multiply that by 7 for the week and that equals 10.5.

3) It takes her 10 minutes each day, so it takes 70 minutes per week, that is also 1.1 hours.

4) Multiply 10.5 kilowatts by 1.1 hours and you get 11.55.

5) The answer is $11.55 per week to dry Lisa's hair.

3 0
3 years ago
4,11,22,37<br> Find an expression, in terms of n, for the nth term of this sequence.
Ivanshal [37]

Step-by-step explanation:

4+7=11

11+(7+4)=22

22+(7+8)=37

Every step 7+4n you must add

4 0
3 years ago
HELP ME PLEASE I NEED HELP​
Olin [163]

Step-by-step explanation:

You should prolly subtract 2 from both sides first.

So you get, -|2/5x + 3| > -1 2/5

  • Add three to both sides
  • -|2/5x| = -1 2/5
  • Do -1 and 2/5 divided by 2/5 to get -3.5, x > -3.5

One of the answers is x > -3.5 but you need to switch the sign to less than and make the other side the opposite.

-( \frac{2}{5}x + 3 ) < 1 \frac{2}{5}

You see that, switched the sign and made whats on the right side opposite. So now solve for x again but with this new equation. Also, the parentheses are absolute value signs

Subtract 3 from both sides

-|2/5x| < -1 and 3/5

Divide 2/5 from each side to get x < -4

I hope I'm correct, my bad if I'm wrong

6 0
3 years ago
Read 2 more answers
Guide<br> What are the zeros of the function f, where f(x) = 6x2 - 9x – 6?
dolphi86 [110]

Answer:

Step-by-step explanation:

Use the Pythagorean Theorem to find the zeros of 6x² - 9x - 6.

x = [9±√(9²-4(6)(-6))]/[2(6)] = [9±√225]/12 = [9±15]/12 = 2, -½

7 0
3 years ago
Read 2 more answers
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