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Xelga [282]
2 years ago
11

X^2+25x-156=0 ayúdenme

Mathematics
1 answer:
Sonbull [250]2 years ago
3 0
X= -25/2 + 1/2 _/1249
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The outside temperature decreases by 7F in 3 1 2hours. Part A How would you represent the temperature change as a unit rate? Exp
Evgesh-ka [11]

Answer:

A)  2f / hour

B) 10 f

Step-by-step explanation:

outside temperature decreases by ; 7 F in 3 1/2 hours

a ) represent temperature change as a unit rate

To do this you will need to represent the temperature change per hour

7 f / 3.5 hours

= 7 f / 3.5 = 2 therefore the temperature change as a unit rate = 2f / hour

b) Temperature change after 5 hours

Δ temperature  in 5 hours = temperature change per hour * 5

                             = 2 F * 5 =  10 F

6 0
3 years ago
3x+2y-5z=-1<br> 4x-3y+2z=-13<br> 2x-5y+4z=-9
Lina20 [59]

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5 0
2 years ago
what types of problems can be solved using the greatest common factor and what types of problems can be solved using the least c
Arisa [49]
The first one is finding the square root of things I believe and I'm not sure about the second one sorry
7 0
3 years ago
Mary Hernandez earned $43,000 in taxable income. She figured her tax from the single taxpayer table above.
Leto [7]

Answer:

Tax= $ 7,173.5

Step-by-step explanation:

Her taxable income is $ 43,000 which lies in the tax category $ 31,850 to

$ 77,100.

Tax for $ 31,850 is $ 4,386

Plus 25% of the amount = ( $ 43,000- $ 31,850 )= $ 11,150 over

25 % of $ 11,150= $ 2,787.5

Total Tax= $ 4386 + $ 2787.5= $ 7,173.5

4 0
3 years ago
Help pls it’s due today *photo*
a_sh-v [17]

9514 1404 393

Answer:

   ACBD-BDAC

Step-by-step explanation:

It is convenient to compare the values of each of the functions when h=1. On the graphs, find 1 on the horizontal axis, then read the value of the function at that point from the vertical axis.

For the equations, the value for h=1 will be its coefficient in the equation.

__

1) a: 80,b: 50, c: 75, d: 30

Fastest to slowest is ACBD.

__

2) a: 4, b: 2, c: 8, d: 3

Slowest to fastest is BDAC

__

The code is these lists, separated by a dash: ACBD-BDAC.

4 0
2 years ago
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