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Drupady [299]
4 years ago
10

Can someone please help me this is very hard i’m dumb

Mathematics
2 answers:
Marat540 [252]4 years ago
4 0

Answer:

Step-by-step explanation:

home learning corona i see

Nitella [24]4 years ago
3 0

Answer:

2 and 1/4 inches

Step-by-step explanation:

1/4*9=

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Factor completely 5x2 − 50x + 120.
BartSMP [9]

Answer:

<h2>Q1. d. 5(x - 4)(x - 6)</h2><h2>Q2. b. (8x - 1)(8x + 1)</h2>

Step-by-step explanation:

\bold{Q1}\\\\5x^2-50x+120=5(x^2-10x+24)=5(x^2-6x-4x+24)\\\\=5\bigg(x(x-6)-4(x-6)\bigg)=5(x-6)(x-4)\\\\\bold{Q2}\\\\64x^2-1=(8x)^2-1^2=(8x-1)(8x+1)\\\\\text{Used}\ a^2-b^2=(a-b)(a+b)

8 0
4 years ago
Read 2 more answers
For each of the -3.3 trials, and in the same sequence in which you entered the freezing points, enter your calculated values for
dedylja [7]

Answer:

The morality of the solution is calculated as 0.859 m. We are required to determine the freezing point depression constant of pure water. The freezing point depression of the solution is given as

T_{f}  = T_{p}  -T_{s} = K_{f} * (morality of solution)

T_{p} and T_{s} are the freezing points of the pure solvent (water, 0°C) andK_{f} = freezing point depression constant of water. Therefore,

T_{f}  = K_{f} *(0.859 m)

=====> (0°C) – (3.00°C) = K_{f}  *(0.859 m)

=====> -3.00°C = K_{f}  *(0.859 m)

Ignore the negative sign (since K_{f} is positive) and get

K_{f} = (3.00°C) / (0.859 m) = 3.492°C/m

The freezing point depression constant of the solvent is 3.5°C kg/mole  

3.5 K.kg/mole (temperature differences are the same in Celsius and Kelvin scales).

3 0
3 years ago
X is a number such that 7x=7y
Delicious77 [7]
X= y

u have to divide 7 from both sides
8 0
4 years ago
3/4 x - 21 = 10/4 x + 7/2
vodomira [7]

Answer:  x=-14

Step-by-step explanation:

8 0
3 years ago
Read 2 more answers
Someone know how to do this?
Rudik [331]
The answer is that the slope equals -2.

Explanation:

To find the slope, all you have to do is count how many units the line goes up and right between two points. Between points (-2,4) and (0,0), the lines does up -4 units (the negative means it went down) and right 2. Then, divide the up/down by the left/right, -4/2, in this case, to find the slope. -4/2 is -2. Therefore, the slope is -2.
3 0
3 years ago
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