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Vikentia [17]
4 years ago
7

Greg paid $22.05 for a backpack. This amount includes a sales tax of 5%. What was the cost of the

Mathematics
1 answer:
wlad13 [49]4 years ago
3 0

Answer:

21.00

Step-by-step explanation:

21.00 I think (sorry if it wrong!!)

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CAN SOMEONE PLEASE HELP ME
Degger [83]

Answer:

38 degrees

Step-by-step explanation:

this is an isosceles triangle, meaning that the base angles are congruent.

the total triangle is equal to 180

so the equation would be: x=180 - (71+71)

evaluate:

x=180-142

x=38 degrees

Hope this helps :)

5 0
3 years ago
(X-2/3)^2+y^2 =36 <br> What is its center? <br> What is its radius
Hatshy [7]

Answer:

0(2/3; 0)

Step-by-step explanation:

3 0
3 years ago
Read 2 more answers
Tony’s club is selling oranges to raise money. For every box they sell, they get 1 1/8 dollars profit. They have sold 75 boxes a
Luden [163]
1\frac{1}{8} =  \frac{9}{8} = 1.125, &#10; \\ 75*1.125= 84.375

84.375 is the profit ALREADY made, so now subtract that from 180 dollars to get
95.625 $ needed, now divide by amount of profit per box...

Answer should be 85 boxes

4 0
3 years ago
A rocket is launched from a tower. The height of the rocket, y in feet, is related to the
devlian [24]

Answer:

The rocket will reach its maximum height after 6.13 seconds

Step-by-step explanation:

To find the time of the maximum height of the rocket differentiate the equation of the height with respect to the time and then equate the differentiation by 0 to find the time of the maximum height

∵ y is the height of the rocket after launch, x seconds

∵ y = -16x² + 196x + 126

- Differentiate y with respect to x

∴ y' = -16(2)x + 196

∴ y' = -32x + 196

- Equate y' by 0

∴ 0 = -32x + 196

- Add 32x to both sides

∴ 32x = 196

- Divide both sides by 32

∴ x = 6.125 seconds

- Round it to the nearest hundredth

∴ x = 6.13 seconds

∴ The rocket will reach its maximum height after 6.13 seconds

There is another solution you can find the vertex point (h , k) of the graph of the quadratic equation y = ax² + bx + c, where h = -\frac{b}{2a} and k is the value of y at x = h and k is the maximum/minimum value

∵ a = -16 , b = 196

∴ h=-\frac{196}{2(-16)}

∴ h = 6.125

∵ h is the value of x at the maximum height

∴ x = 6.125 seconds

- Round it to the nearest hundredth

∴ x = 6.13 seconds

4 0
4 years ago
Solve |2x - 5| = 4 I dont know what you solve for
ICE Princess25 [194]

Hello!

Answer:

\huge\boxed{x = 1/2, 9/2}

|2x - 5| = 4

Solve for the negative and positive expressions:

2x - 5 = 4

2x = 9

x = 9/2

------------

-(2x - 5) = 4

-2x + 5 = 4

-2x = -1

x = 1/2.

Therefore, the solutions are x = 1/2 and 9/2.

6 0
4 years ago
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