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zepelin [54]
3 years ago
12

Y=−1/2x+3 please guys help

Mathematics
1 answer:
Phantasy [73]3 years ago
5 0

Answer:

-1/2? i dunno

Step-by-step explanation:

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PLZZZZZ NEED HELP!!!!!!!
rjkz [21]

the measure of angle a is 79 degrees

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3 years ago
the sum of the perimeter of two squares is 40cm while the sum of the area is 58cm². Find length the side of the square.
tia_tia [17]

a,\ b-the\ length\ of\ sides\\\\(1)\qquad4a+4b=40\qquad\text{divide both sides by 4}\\\\a+b=10\to a=10-b\\\\(2)\qquad a^2+b^2=58\\\\\text{Substitute}\ (1)\ \text{to}\ (2):\\\\(10-b)^2+b^2=58\qquad\text{Use}\ (x-y)^2=x^2-2xy+y^2\\\\10^2-2(10)(b)+b^2+b^2=58\\\\100-20b+2b^2=58\qquad\text{subtract 58 from both sides}\\\\42-20b+2b^2=0\\\\2b^2-20b+42=0\qquad\text{divide both sides by 2}\\\\b^2-10b+21=0\\\\b^2-7b-3b+21=0\\\\b(b-7)-3(b-7)=0\\\\(b-7)(b-3)=0\iff b-7=0\ \vee\ b-3=0\\\\\boxed{b=7\ \vee\ b=3}

\text{Put the values of b to }\ (1):\\\\for\ b=7\to a=10-7=3\\\\for\ b=3\to a=10-3=7\\\\Answer:\ \boxed{7cm\ and\ 3cm.}

8 0
4 years ago
Can you guys do all of them I will BRAINLIST YOU ITS DUE TOMORROW
nadezda [96]

Answer:

a1. 0.1

a2. 0.14

b1. 11.0

b2. 10.98

c1. 39.2

c2. 39.18

d1. 71.6

d2. 71.57

4. 10.5

5. No, the correct answer is 35.28 because the 4 would round down, not up.

6. Tu is correct because the 69¢ would make it round up, not down

Hope this helps :)

5 0
3 years ago
Evaluate f(x)=x+6 when x=−2,0, and 5.
Gekata [30.6K]

Answer:

f(-2) = 4

f(0) = 6

f(5) = 11

Step-by-step explanation:

You just need to plug in the different values of x into the equation

f(x)=x+6

When x = -2, then f(-2) = -2 + 6 = 4

When x = 0, then f(0) = 0 + 6 = 6

When x = 5, then f(5) = 5 + 6 = 11

6 0
3 years ago
Read 2 more answers
What is the greatest common factor of the pair of numbers?
geniusboy [140]
The answer is 66.
66 * 3 = 198
66 * 5 = 330
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3 years ago
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