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3 years ago

Evaluate: 48 ÷ 8 + 5 × (7 – 2)

Mathematics

1 answer:

Makovka662 [10]3 years ago

7 0

Answer:

hope this helps you out :)

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Find the sum of all the integers from 1 to 100 that are not multiples of 7

Mars2501 [29]

Answer:

4343

Step-by-step explanation:

To find multiple of 7 from 1 to 100,

Take the quotient of 100/7=14

n=100 (number of terms)

n=100-14 (Without Multiple of 7=number of terms - multiple of 7)

=>n=86

Sum of 1 to 100 => Sn = n/2(a + an)

=> Sn = 86/2(1+100)

=> Sn = 43(101)

=> Sn = 4343

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3 years ago

The vertex of this parabola is at (4, -3). When the x-value is 5, the

Marat540 [252]

$The\ vertex\ form:y=a(x-k)^2+h\\\\where\ (k;\ h)\ \ are\ coordinates\ of\ vertex\\------------------------\\y=a(x-4)^2-3\\\\the\ point\ on\ parabola\ (5;-6)\\Put\ x=5\ and\ y=-6\ to\ equation:\\\\a(5-4)^2-3=-6\\a(1)^2=-6+3\\a=-3\\\\Answer:y=-3(x-4)^2-3=-3(x^2-8x+16)-3\\\\=-3x^2+24x-48-3=-3x^2+24x-51$

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3 years ago

Which ratio does not belong with the other three? Explain your reasoning. 4/10 2/5 3/5 6/15

JulsSmile [24]

Answer:

3/5

Step-by-step explanation:

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3 years ago

If n = -1, which of the following statements is false?

Rainbow [258]

Answer: B

Step-by-step explanation:

Those lines around n mean it’s talking about absolute value. Absolute value is the positive version of any number. This that -1 would turn into 1. If that’s the case, then |n| < 0 would be false

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3 years ago

Graph the inequality on the axes below.<br> 2x + 5y 3-5

Afina-wow [57]

Answer:

there ARE NO AXES

Step-by-step explanation:

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3 years ago