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Scrat [10]
2 years ago
7

What is the value of the expression 2.8^2 + 7 - 7.6 ?

Mathematics
2 answers:
gayaneshka [121]2 years ago
7 0

Answer:

7.24

Step-by-step explanation:

2.8^2 = 7.84

7.84 + 7 = 14.84

14.84 - 7.6 = 7.24

hope this helped!

Stella [2.4K]2 years ago
5 0

Answer:

7.24

Step-by-step explanation:

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Which is the equation of the graphed line written slope-intercept form?
DochEvi [55]

Answer:

Its the third one

Step-by-step explanation:

its the only negative one

3 0
2 years ago
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For the table below, determine the function rule, and find each of the missing y-values.
anygoal [31]
The answer is 8 and 13

<span>
y = ax + b
y = 4, x = 1        </span>⇒  4 = a + b
y = 6, x = 3       ⇒  6 = 3a + b

Solve the system of equation:
a + b = 4
3a + b = 6
______
b = 4 - a
3a + b = 6
______
3a + 4 - a = 6
2a + 4 = 6
2a = 6 - 4
2a = 2
a = 2/2 = 1
b = 4 - a = 4 - 1 = 3

So, the function rule is: y = x + 3

Thus, if x = 7, then y = 7 + 3 = 10
If x = 10, then y = 10 + 3 = 13


x y
1 4
3 6
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10 13
6 0
2 years ago
7 more than 5 times a number is 122
Luba_88 [7]

Answer:

The number is 23.

Step-by-step explanation:

5n + 7 = 122               Subtract 7 on both sides

     5n = 115                 Isolate the variable by dividing 5 on both sides

        n = 23

<h3><u><em>Hope this helps!!! </em></u></h3><h3><u><em>Please mark this as brainliest!!! </em></u></h3><h3><u><em>Thank You!!! </em></u></h3><h3><u><em>:)</em></u></h3>
4 0
3 years ago
the area of a rectangle is 54x^9y^8 square yards if the length of the rectangle is 6x^3y^4 yards what expression represents the
Vinvika [58]
The area of a rectangle is given by:
 A = (w) * (l)
 Where,
 w: width
 l: long
 Substituting values we have:
 (54x ^ 9y ^ 8) = (w) * (6x ^ 3y ^ 4)
 Clearing w we have:
 w = (54x ^ 9y ^ 8) / (6x ^ 3y ^ 4)
 Rewriting:
 w = (9 * x ^ 6y ^ 4)
 Answer:
 
the length of the rectangle is:
 
w = (9 * x ^ 6y ^ 4)
5 0
2 years ago
50 points!
madam [21]

Answer:

either 34 or 214

Step-by-step explanation:

8 0
2 years ago
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