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Margarita [4]
3 years ago
6

Simplify 3 + (-8) -17

Mathematics
2 answers:
DiKsa [7]3 years ago
8 0
3 + (-8) - 17
3 - 8 - 17
3 - 25
-22 <==
liraira [26]3 years ago
3 0
-22 i think is the answer
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Find the side lengths of the triangle in this picture.​
ozzi

Answer:

Hypotenuse: 41 meters, Long leg: 40 meters, Short leg: 9 meters.

Step-by-step explanation:

According to the statement, we have the following information about the lengths of the right triangle:

Hypotenuse

3\cdot x + 14

Long leg

3\cdot x + 13

Short leg

x

By the Pythagoric Theorem, we have the following expression:

(3\cdot x + 14)^{2} = x^{2} + (3\cdot x + 13)^{2} (1)

9\cdot x^{2}+84\cdot x + 196 = x^{2} + 9\cdot x^{2} + 78\cdot x + 169

9\cdot x^{2} + 84\cdot x + 196 = 10\cdot x^{2} + 78\cdot x +169

x^{2} -6\cdot x -27 = 0

(x-9)\cdot (x+3) = 0

As length is a positive variable by nature, then the only possible solution is x = 9. Lastly, the side lengths of the right triangle are:

Hypotenuse: 41 meters, Long leg: 40 meters, Short leg: 9 meters.

8 0
3 years ago
Write an equation of a line that contains the points P(5,0) and Q(7,-3)
yanalaym [24]

Answer:

y=-3/2x+7.5

Step-by-step explanation:

You need to find the slope by subtracting second point,(7,-3), from the first point, (5,0), you get the slope of -3/2.

you need to put it on a graph with that slope, place the original two points and you move the slope up the y-axis 7.5, making the y-intercept (7.5,0)

3 0
3 years ago
Solve this system of equations<br><br> 5x + 4y = 6<br> 10x -2y = 7
Akimi4 [234]

Answer:

x = 4/5

y = 1/2

Step-by-step explanation:

8 0
2 years ago
Which ordered pair is the solution to the system of linear equations y=5x+8 and -4x-1 ?
Margarita [4]
Hello : 
<span>
 y=5x+8
y= -4x-1 
5x+8 = -4x-1
9x =-9
x = -1 
y = 5(-1)+8 = 3 
</span><span>ordered pair is the solution to the system : ( -1 , 3)</span>
8 0
3 years ago
Read 2 more answers
Which values have exactly 2 significant figures? Check all that apply.
JulijaS [17]

ANSWER

Options B, C and D have exactly 2 significant figures.


<u>EXPLANATION</u>

To see whether the numbers have exactly 2 significant figures, round all to 2 significant figures. The ones that remains the same have exactly 2 significant figures.


302\approx 300yards to 2.s.f

980\approx 980gallons to 2.s.f

1200\approx 1200feet to 2.s.f

84\approx 84litters to 2.s.f\

6,040\approx 6,000meters to 2.s.f







8 0
3 years ago
Read 2 more answers
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