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Westkost [7]
3 years ago
12

The difference 25(d−10)−23(d+6)25(d−10)−23(d+6) is

Mathematics
2 answers:
MArishka [77]3 years ago
8 0
25d - 250 | - 575d^2 + 2277d + 34362
Vlada [557]3 years ago
3 0

Answer: 2d - 388

Step-by-step explanation:

To expand the equation 25(d−10)−23(d+6)

We open the brackets first;

25d - 250 - 23d - 138

Collecting like terms

= 25d - 23d - 250 - 138

= 2d - 388

Therefore the difference is 2d - 388

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Please help me<br><br> Determine the value of base b if (152)b = 0x6A. Please show all steps.
egoroff_w [7]

Answer:

The value of b is, 8

Step-by-step explanation:

To determine the value of b:

Given:

(152)_b = 0x6A               ....[1]

Since, 0x6A represents the hexadecimal form.

To convert this hexadecimal form into decimal form:

(6A)_{16}= (6 \times 16^1)+(A \times 16^0)=(6 \times 16)+(10 \times 1) =96+10 = 106

⇒0x6A=106(decimal form)

Now we have to convert this decimal form into octal

8  |  106

8   |  13   | 2

    |   1    |  5

        1

Then, the octal form we get, (152)_8

Substitute this in [1] we have;

(152)_b = (152)_8

On comparing both sides we have;

b = 8

Therefore, the value of b is, 8

5 0
3 years ago
Which of the following inequalities matches the graph? PLZ HELP DUE TODAY
balandron [24]

Answer:

A. 2x + y < 7

Step-by-step explanation:

the slope is negative and the y-intercept is positive

6 0
2 years ago
Given that y = 6 + 4x-x^2express y in the form a.-(x + b)^2, where a and b are
Y_Kistochka [10]

Answer:

6 + 4x − x² = 10 − (x − 2)²

the turning point : (2 , 10)

Step-by-step explanation:

6 + 4x − x² =  − x² + 4x + 6

                 = − (x² − 4x) + 6

                 = − (x² − 4x + 4 − 4) + 6

                 = − [(x − 2)² − 4] + 6

                 = − (x − 2)² + 4 + 6

                 = − (x − 2)² + 10

                 = 10 − (x − 2)²

Then the turning point of y is (2 , 10)

4 0
2 years ago
2 planes left a airport at noon 1 flew east and the other flew west as twice the speed after 3 hours the planes were 2700 miles
const2013 [10]
Speed =distance ÷time
?=2700÷3
?=900 miles per hour
5 0
3 years ago
Read 2 more answers
How do you find the answer
kati45 [8]
The answer is (2, 0).
4 0
3 years ago
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