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Gnesinka [82]
3 years ago
15

Someone help me please !!

Mathematics
1 answer:
Fantom [35]3 years ago
3 0
Answer: A) 60°
The inscribed angle is half the measure of the arc.
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The access code for a​ car's security system consists of four digits. the first digit cannot be 6 and the last digit must be eve
sertanlavr [38]
There are 9 choices for the first digit: {0, 1, 2, 3, 4, 5, 7, 8, 9}
There are 10 choices for the second digit: {0, 1, 2, 3, 4, 5, 6, 7, 8, 9}
There are 10 choices for the third digit: {0, 1, 2, 3, 4, 5, 6, 7, 8, 9}
There are 5 choices for the fourth digit: {0, 2, 4, 6, 8}

Multiply the number of choices per digit to get: 9*10*10*5 = 90*50 = 4500

Answer: 4500
5 0
3 years ago
Find the solution of the equation: x2 = 30 -13x
Monica [59]
x^2=30-13x\ \ \ |+13x-30\\\\x^2+13x-30=0\\\\x^2+15x-2x-30=0\\\\x(x+15)-2(x+15)=0\\\\(x+15)(x-2)=0\iff x+15=0\ \vee\ x-2=0\\\\\boxed{x=-15\ \vee\ x=2}
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3 years ago
What is the slope of the line given by the equation y = -7x?
xeze [42]
<u>→ Chapter : </u><span><u>Equation of A Straight Line </u></span><u>←</u>
<em>≡ General equation of a straight line:</em>
⇔ y = mx+c

<em>≡ Solution:</em>
⇔ To know the slope in the equation, we just need to see the variable of x
y=-7x
∴ So, the slope of this equation is \boxed{-7}
6 0
4 years ago
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Demarco wrote two correct variable expressions to represent the phrase “the product of a number and 7.” Which of these variable
enot [183]
A and b because the "product" is the answer to multiplication, and those are the only answers where 7 and n are being multiplied. Answer b is technically more correct than a is because the coefficient should come before the variable.
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3 years ago
Solve the inequality:2y-2&lt;14
My name is Ann [436]
2y - 2 < 14
2y < 14 + 2
2y < 16
y < 16/2
y < 8
7 0
3 years ago
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