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grin007 [14]
3 years ago
7

Find the value of the expression: x+5-6 when x=5 Step by step please

Mathematics
1 answer:
Butoxors [25]3 years ago
8 0

Answer:

4

Step-by-step explanation:

Since x = 5, you can substitute 5 into the x value of the expression: 5 + 5 - 6. Then, you add the 5 + 5 to get 10 in which you subtract 6 from. The answer is 4.

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10. Use the discriminant to find the values of b for which the equation 4x2 + bx + 1 = 0 has one real solution.
il63 [147K]

Answer:

b = 4, or -4

Step-by-step explanation:

b^2 - 4*4*1 = 0

b^2 = 16

b = 4, or -4

8 0
2 years ago
The daytime temperature in Apple Valley is falling by 2.5 degrees each day. What will the net change in the daily temperature be
gizmo_the_mogwai [7]
2.5x7( days in a week) = 17.5 and since its falling it would be negative
8 0
3 years ago
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Which are the solutions of x2 = -5x + 8?
Oksana_A [137]

Answer:

1.27, -6.27 to the nearest hundredth,

or if you require it in exact form,

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Step-by-step explanation:

x^2 = -5x + 8

x^2 + 5x  = 8

Competing the square:

(x + 2.5)^2 - 6.25 = 8

(x + 2.5) = 14.25

x + 2.5 = +/-√14.25

x = -2.5 + √14.25,   -2.5 - √14.25

x = -2.5 + 3.77,  -2.5 - 3.77

= 1.27, -6.27.

6 0
3 years ago
Find the GCF using list of factors number 9
DiKsa [7]
The factors are 3 6 and 9
3 0
3 years ago
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Which property is shown below?
Tpy6a [65]

Answer:

C

Step-by-step explanation:

The identity property for addition tells us that zero added to any number is the number itself.

5 0
3 years ago
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