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podryga [215]
3 years ago
11

Please help me !!!

Mathematics
2 answers:
kati45 [8]3 years ago
5 0
23)~75r^2-48=3(25r^2-16)=3(5r-4)(5r+4)\\\\
24)~45x^2-5=5(9x^2-1)=5(3x-1)(3x+1)\\\\
25)~m^3n-mn^3=mn(m^2-n^2)=mn(m-n)(m+n)\\\\
26)~6a^3-24ab^2=6a(a^2-4b^2)=6a(a-2b)(a+2b)\\\\
27)~3x^2+15x-72=3(x^2+5x-24)=3(x-3)(x+8)\\\\
28)~2m^2-4m+2=2(m^2-2m+1)=2(m-1)^2\\\\
29)~x^3+9x^2-52x=x(x^2+9x-52)=x(x-4)(x+13)\\\\
30)~4y^3+4y^2-120y=4y(y^2+y-30)=4y(y-5)(y+6)
Dahasolnce [82]3 years ago
5 0
#23
Take out a GCF of 3(25x^2-16)
3(5x-4)(5x+4)
#24
Take out GCF of 5
5(9x^2-1)
5(3x-2)(3x+1)
#25
GCF mn(m^2-n^2)
mn(m-n)(m+n)
#26
6a(a-2b)(a+2b)
#27
3(x+8)(x-3)
#28
2(m-1)(m-1)
#29
x(x-4)(x+13)
#30
4y(y+6)(y-5)

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I don’t know how to solve this
V125BC [204]

Assuming that both triangles are an exact copy of one another, it is safe to assume that 3y-7 is equal to 41. Set up an equation

3y-7=41

Add 7 to both sides

3y=48

Divide both sides by 3

y=16


Now to find PN.

Based on what we know, we can assume that MP = PN. Let's make some equations!

MP = 17x-8     PN = 11x+4

17x-8 = 11x+4

Subtract 11x from both sides

6x-8 = 4

Add 8 to both sides

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Divide by 2

x=2

Substitute 2 in for x in the equation for PN

11(2)+4

Multiply 11 by 2

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7 0
3 years ago
Solve.<br> 92.5÷105 brainliest
Karo-lina-s [1.5K]

Answer:

\frac{37}{42}

Step-by-step explanation:

Given :

\frac{92.5}{105}

Multiply numerator and denominator by 2 :

\frac{92.5}{105} \times\frac{2}{2}

\frac{185}{210}          [Divide both sides by 5 as it is a common factor]

\frac{185}{210} \div \frac{5}{5}

\frac{37}{42}

6 0
2 years ago
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What is the value of the expression below when a = 3 and b = 7?
svp [43]

Answer:

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Step-by-step explanation:

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42

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6 0
3 years ago
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El señor Antonio Rodríguez compro en efectivo una televisión de plasma de $138,860.00. Le otorgan un descuento de la 20% ¿Cuanto
ella [17]

Answer:

$111,088

Step-by-step explanation:

Paso 1

Encuentra el descuento

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Porcentaje de descuento = 20%

Descuento = 20% × $ 138,860

Descuento = $ 27,772

Paso 2

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Esto se calcula como:

$ 138,860 - $ 27,772

= $ 111,088

Por lo tanto, la cantidad que paga por la televisión es de $ 111,088

7 0
2 years ago
In a company, it takes 4 employees 4 days to complete a task. It would take 2 employees 8 days to complete the same task.
Triss [41]
The concept that can be used in order to answer this item is that of man-days. The total number of man-days required to do the job should always be constant. 

This can be illustrated by the givens above.
Scenario 1: 
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The equation for determining the value of e is equal to,
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The answer is the second choice. 
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