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andreev551 [17]
2 years ago
13

If a > -1 then 1/a < -1 When is the statement above true for a≠0

Mathematics
2 answers:
andrezito [222]2 years ago
8 0

Answer:

I think the answer is c, always

ELEN [110]2 years ago
8 0

Answer:

<em><u>yes</u></em><em><u> </u></em><em><u> </u></em><em><u>a</u></em><em><u> </u></em><em> </em><em><u>I</u></em><em><u> </u></em><em><u>always</u></em><em><u> </u></em><em><u>positive</u></em>

Step-by-step explanation:

I think it's helps you

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What is the surface area of the right cylinder with a height of 20 and a radius of 5
Alex17521 [72]

Answer: The answer is 785.4

Step-by-step explanation: Equation is 2πrh+2πr²

Plug in your numbers and hit enter!

Hope this helps

3 0
3 years ago
Read 2 more answers
Noah is buying a pair of jeans and using a coupon for 10%off. The total price is $56.70 which includes $2.70 in sales tax. Noah’
lora16 [44]

Answer:

See below.

Step-by-step explanation:

So, we know that Noah's purchase can be modeled by the equation:

x-0.1x+2.70=56.70

Part 1)

The solution to the equation will be the value of x.

In this case, x will represent the original price of the jeans.

We know that Noah has a coupon for 10% off the <em>original price of the jeans</em>.

So, 0.1x will represent how much of the original price Noah gets a a discount on.

Therefore, (x - 0.1x) represents the total cost of the jeans <em>after</em> the coupon.

So, x is our original price of the jeans.

Part 2)

To verify that 70 is <em>not</em> a solution, we can simply substitute 70 for x and check whether or not the equation is true. So:

(70)-0.1(70)+2.7\stackrel{?}{=}56.70

Multiply:

70-7+2.7\stackrel{?}{=}56.7

Subtract:

63+2.7\stackrel{?}{=}56.7

Add:

65.7\neq56.7

However, we <em>can</em> verify that 60 <em>is</em> the solution by substituting. So, substitute 60 for every x:

(60)-0.1(60)+2.7\stackrel{?}{=}5.7

Multiply:

60-6+2.7\stackrel{?}{=}56.7

Subtract:

54+2.7\stackrel{?}{=}56.7

Add:

56.7\stackrel{\checkmark}{=}56.7

So, 60 is indeed the solution and is the value of x.

So, this means that $60 was the original price of the jeans.

8 0
3 years ago
Read 2 more answers
State what additional information is required in order to know that the triangles are congruent
AleksandrR [38]
17 && 19 are both congruent.
5 0
2 years ago
Nicole used 3/8 of her ribbon to wrap the present. If she used 6 feet of ribbon for the present how much ribbon did Nicole have
lilavasa [31]
You would set up a proportion. 3/8 = 6/x... cross multiply ( 3*x = 3x and 6*8 = 48)  3x = 48... divide both sides by 3 (3x/3 = x and 48/3 = 16)

So, she originally had 16 feet of ribbon.
6 0
3 years ago
Classify the triangle.<br> O obtuse<br> O equiangular<br> Oright<br> O acute
Vsevolod [243]

Answer:

right

Step-by-step explanation:

The box in the lower corner means that the angle is equal to 90 degrees, which means the angle is a right angle

The  triangle is a right triangle

8 0
3 years ago
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