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Alenkasestr [34]
3 years ago
11

What is 5/8 ± 2/5? Please Help easy points

Mathematics
1 answer:
Sphinxa [80]3 years ago
4 0
Easy points thank you so much :^)

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Jack spent $40 on new shoes then he spent half of what he had left on clothes finally he gave five dollars to his brother now he
aleksandrvk [35]
This is a working backwards problem.  You know he has $35 at the end.  Before he gave his brother $5, he would have $40, which is half of what he had before he bought the clothes, so he would have had $80.  Before he spent the $40 on shoes, he would have had $120, so the answer is $120.
4 0
3 years ago
Given the system of equations, what is the value of the system determinant?
weeeeeb [17]
2x + y = 8
x - y = 10
--------------add
3x = 18
x = 6

x - y = 10
6 - y = 10
-y = 10 - 6
-y = 4
y = -4

solution is : (6,-4)
6 0
3 years ago
Read 2 more answers
Express the following numbers in standard form. [A] 509.78 [B] 0.0289 Can someone please help me ? I need to answer that questio
STALIN [3.7K]

Answer:

(A) 509.78

We need to move the decimal point after the first non-zero digit

So,

=> 5.0978 × 10² (Since the decimal point is moved two places to the left)

(B) 0.0289

Again after the first non-zero digit:

So, it becomes:

=> 2.89 × 10⁻² (Since the decimal point is moved 2 places to the right so it will be negative also)

8 0
3 years ago
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Which of the following rational functions is graphed below?​
asambeis [7]

Answer:

B.

Step-by-step explanation:

According to the graph the function is defined for all real number except -3 and 7 (where the two red dashed vertical lines cross the x-axis)

so our function should be :

\frac{1}{(x-(-3))(x-7)} =\frac{1}{(x+3)(x-7)}

6 0
3 years ago
Factor 16b^2 - 40b +25
WINSTONCH [101]
Your answer will be,

ANSWER: (4b - 5)^2

You're welcome :)
4 0
3 years ago
Read 2 more answers
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