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4vir4ik [10]
3 years ago
8

Please help a brother out I will give you brainliest -x-y=1 y=-x+4

Mathematics
1 answer:
Vera_Pavlovna [14]3 years ago
7 0

Answer:

x=3 y=1

Step-by-step explanation:

-x-y=1

y=-x+4

x=-y-1

x=-y+4

x=-1+4

<u>x=3</u>

y=-3+4

<u>y=1</u>

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katrin2010 [14]
The gcf of 25 and 14 would be 2
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4 years ago
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I WILL GIVE 20 POINTS TO THOSE WHO ANSWER THIS QUESTION RIGHT NOOOO SCAMS AND EXPLAIN WHY THAT IS THE ANSWER
Step2247 [10]

Answer:

A = 297\pi

Step-by-step explanation:

To solve this problem we need to be familiar with the formula for the surface area of a cone:

A = \pi r(r + \sqrt{h^2+r^2})

We are given the length of a side and the diameter, to calculate the radius divide the diameter in half:

r = \frac{d}{2}\\r = \frac{18}{2}\\r = 9 cm

To calculate the height of the cone, we must use the Pythagorean Theorem:

C^2 = A^2 + B^2

We can treat the side length as the hypotenuse C, the radius as the base A, and solve for height B. Set the expression up like this:

C^2 = A^2 + B^2\\24^2 = 9^2 + B^2\\B^2 = 24^2 - 9^2\\B = \sqrt{24^2 - 9^2}\\B = \sqrt{576 - 81}\\B = \sqrt{495}\\B \approx 22.25

Now we can plug into our original formula:

A = \pi r(r + \sqrt{h^2+r^2})\\A = \pi 9(9+\sqrt{\sqrt{495}^2+9^2}\\A = \pi 9(9+\sqrt{495 + 81}\\A = \pi 9(9+\sqrt{576})\\A = \pi 9(9 + 24)\\A = \pi 9(33)\\A = 297\pi

5 0
2 years ago
Solve 10y4+6y2-12y3-5y4
Olin [163]

Answer:

(5y² - 12y + 6) y²

Step-by-step explanation:

i'm going to assume that you mean to simplify the expression:

10y⁴+6y²-12y³-5y⁴   (group like terms)

= (10y⁴- 5y⁴) - 12y³ + 6y²

= 5y⁴ - 12y³ + 6y²   (factor out y²)

= (5y² - 12y + 6) y²

4 0
4 years ago
A right triangle has legs of 5 ft and 6 ft. What is the length of the hypotenuse? _____ ft. A. 7.8 B. 3.3 C. 11.0 D. 1.0
Delicious77 [7]

Answer:

<h2>7.8</h2>

Option A is the correct option.

Step-by-step explanation:

Base (b) = 5 ft

Perpendicular (P) = 6 ft

Hypotenuse (h) = ?

Now,

Using Pythagoras theorem,

{h}^{2}  =  {p}^{2}  +  {b}^{2}

{h}^{2}  =  {(6)}^{2}  +  {(5)}^{2}

{h}^{2}  = 36 + 25

{h}^{2}  = 61

h =  \sqrt{61}

h = 7.8 \: ft

Hope this helps...

Good luck on your assignment

8 0
3 years ago
Ms. Gonzales is investing $17000 at an annual interest rate of 6%
Lena [83]

Answer:

44398.84

Step-by-step explanation:

17,000e^(0.06)(16)

it helps to use a desmos scientific calculator

5 0
3 years ago
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