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soldier1979 [14.2K]
2 years ago
6

How do I solve this question

Mathematics
1 answer:
nika2105 [10]2 years ago
5 0

Answer:

D

Step-by-step explanation:

Sum = -12

Product = -48

Factors = -12 , 4

-12 + 4 = - 8  & -12 * 4 = -48

x² - 8x - 48 = x² - 12x + 4x  - 4*12

                  = x(x - 12) + 4(x - 12)

                 = (x - 12) (x + 4)

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Help please. <br> Give the slope of y - 3 = 4(x + 8) and a point on the line
Sauron [17]
-----------------------------------------------------------
Make y the subject :
-----------------------------------------------------------
y - 3 = 4(x + 8)      
y - 3 = 4x + 32           // Apply distributive property
y = 4x + 35                // Add 3 to both sides

-----------------------------------------------------------
Identify Slope : 
-----------------------------------------------------------
Slope = 4

-----------------------------------------------------------
Find a point on the line :
-----------------------------------------------------------
When x = 0, 
y = 4(0) + 35              // Sub x = 0 into the equation 
y = 35                         // Combine like terms
Point = (0, 35)

-----------------------------------------------------------
Answers :
(a) Slope = 4
(b) One point on the line is (0, 35)
-----------------------------------------------------------
4 0
3 years ago
Someone please help me with this question ?
Crank
Asked and answered elsewhere.
brainly.com/question/9495706
5 0
3 years ago
jane lives 1 3/8 miles from the airport. She drove from her house to the airport and back 2 times. How far did Jane drive? Move
Ket [755]

Answer:

5\frac{1}{2}\ mi

Step-by-step explanation:

we know that

1\frac{3}{8}\ mi=\frac{1*8+3}{8}=\frac{11}{8}\ mi

She drove from her house to the airport and back 2 times

so

Multiply the distance from her house to the airport by 4

(4)*\frac{11}{8}=\frac{11}{2}=5\frac{1}{2}\ mi

4 0
3 years ago
The value of Adam's model railway is $550.
garik1379 [7]

Answer:(c)

Step-by-step explanation:

Given

The initial value of Adam's model is A_o=\$550

the value increases exponentially with the rate of r\%

Time period t=5\ years

Final amount A=\$736

Exponential growth is given by

\Rightarrow A=A_o(1+r)^t

Putting values

\Rightarrow 736=550(1+r)^5\\\\\Rightarrow (1+r)^5=1.338

\Rightarrow 1+r=1.05999\\\Rightarrow r=0.05999\ or\ 5.99\%\approx 6\%

Option (c) is correct

6 0
2 years ago
7th question help please
vaieri [72.5K]
Surface area of the pyramid= 4*(area of the triangle) + area of the square

Area of the triangle = (1/2)*base*height=(1/2)*5*5= 25/2 in²
Area of the square = 5*5 =25 in²

Surface area of the pyramid = 4*(25/2) + 25=2*25 + 25=75 in²
3 0
2 years ago
Read 2 more answers
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