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satela [25.4K]
2 years ago
11

NO LINKS AND HELP ME AND SHOW YOUR WORK PLEASE PLEASE​

Mathematics
1 answer:
cestrela7 [59]2 years ago
6 0

Answer:

65

Step-by-step explanation:

5₁=5·5=25 (square area)

5₂=1/2·5·4=10  (triangle area)

5=25+4·10

=25+40

=65

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NEED HELP AGAIN
Viefleur [7K]

2238 - 300 = 1938 ft is your answer

6 0
2 years ago
What is the solution to sqrt 17-x=x+3? Show your work.
snow_lady [41]

Answer:

x=1

Step-by-step explanation:

Remember:

(\sqrt[n]{a})^n=a\\\\(a+b)=a^2+2ab+b^2

Given the equation \sqrt{17-x}=x+3, you need to solve for the variable "x" to find its value.

You need to square both sides of the equation:

(\sqrt{17-x})^2=(x+3)^2

17-x=(x+3)^2

Simplifying, you get:

17-x=x^2+2(x)(3)+3^2\\\\17-x=x^2+6x+9\\\\x^2+6x+9+x-17=0\\\\x^2+7x-8=0

Factor the quadratic equation. Find two numbers whose sum be 7 and whose product be -8. These are: -1 and 8:

(x-1)(x+8)=0

Then:

x_1=1\\x_2=-8

Let's check if the first solution is correct:

\sqrt{17-(1)}=(1)+3

4=4 (It checks)

Let's check if the second solution is correct:

\sqrt{17-(-8)}=(-8)+3

5\neq-5 (It does not checks)

Therefore, the solution is:

x=1

3 0
3 years ago
The length of a football field is 120m. what is the length on drawing, if the scale is 1:5m?​
inna [77]
Answer: I believe its 24 meters.
Explanation: Just divide 120 by 5
5 0
3 years ago
(1 point) A rock is thrown into a still pond and causes a circular ripple. If the radius of the ripple is increasing at a rate o
PtichkaEL [24]

Answer:

8pi feet per second

Or, 25.1 feet per second (3 sf)

Step-by-step explanation:

C = 2pi×r

dC/dr = 2pi

dC/dt = dC/dr × dr/dt

= 2pi × 4 = 8pi feet per second

dC/dt = 25.1327412287

8 0
3 years ago
What is 12.05 as a fraction
hram777 [196]

Answer:

241/20

Step-by-step explanation:

mmnmmmmmmnmmmmmm

4 0
3 years ago
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