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valkas [14]
3 years ago
6

Find the product of each polynomial (3a+5b)​

Mathematics
1 answer:
serg [7]3 years ago
8 0
Roaa s Bono de hehdowbdd
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You can answer only this question, it's ok:
Sophie [7]
1)100 or A
Angle = |30*H - (11/2)*M|, where H is the hours hand and M is the minutes hand

in this case: H = 4, M= 40
30*4 - (11/2)*40 = 120 - 220 = -100 = |-100| = 100
2)x=4y or C
If you plug in 0,0 you will get 0=4×0 or 0,0

7 0
3 years ago
If c = the number of cars in a parking lot, which algebraic expression
telo118 [61]

Answer:

c+9

Step-by-step explanation:

Key word SUM means addition

7 0
3 years ago
What are the roots of the quadratic equation 2x2+7x+4=0? Select all that apply.
skad [1K]

Answer:

option A and B

x=\frac{-7+\sqrt{17}} {4}

and

x=\frac{-7-\sqrt{17}} {4}

Step-by-step explanation:

we have

2x^2+7x+4=0

The formula to solve a quadratic equation of the form

ax^{2} +bx+c=0

is equal to

x=\frac{-b\pm\sqrt{b^{2}-4ac}} {2a}

in this problem we have

2x^2+7x+4=0

so

a=2\\b=7\\c=4

substitute in the formula

x=\frac{-7\pm\sqrt{7^{2}-4(2)(4)}} {2(2)}

x=\frac{-7\pm\sqrt{17}} {4}

so

x=\frac{-7+\sqrt{17}} {4}

and

x=\frac{-7-\sqrt{17}} {4}

7 0
2 years ago
Using the Addition Method, solve for x in the following system of linear equations.
Anna71 [15]

Answer:

x = 0

Step-by-step explanation:

if 2y + x = 4

we can assume that y = 2
if y - 3x = 2

it means 2 - 0 = 2

therefore x = 0

4 0
2 years ago
Please help asap, i will mark as brainliest. please try to find the answer! asap
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1. 14.4 km, 2. 25.2 km, 3. 37.8 km
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3 years ago
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