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3 years ago

F(x)=3x^2-36 find x

Mathematics

1 answer:

VLD [36.1K]3 years ago

5 0

I got (B)
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5^x + 5^x+1 = 150<br> Find x

Archy [21]

Answer:

This might help u...

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4 years ago

Jane had 275 stickers, which she gave to her friends. Each friend got five more stickers than the friend before. If the first fr

Paha777 [63]

Answer:

10 friends

Step-by-step explanation:

we know that

The formula of the sum is equal to

$sum=\frac{n}{2}[2a1+(n-1)d]$

where

a1 is the first term

n is the number of terms (number of friends)

d is the common difference in the arithmetic sequence

In this problem we have

$sum=275\ stickers$

$a1=5\ stickers$

$d=5$ ----> the common difference

substitute in the formula and solve for n

$275=\frac{n}{2}[2(5)+(n-1)(5)]$

$550=n[10+5n-5]\\ \\550=10n+5n^{2} -5n\\ \\5n^{2}+5n-550=0$

Solve the quadratic equation by graphing

The solution is n=10

see the attached figure

therefore

She had 10 friends who got stickers

5 0

3 years ago

Line m has a slope of 9/4. Line n is perpendicular to m. What is the slope of line n?

Nadusha1986 [10]

Answer:

-4/9

Step-by-step explanation:

Perpendicular lines have the opposite reciprocals of the parallel line slopes.

4 0

3 years ago

Owen's math book weighs 2 pounds

kakasveta [241]

Answer:

5.8125 pounds

Step-by-step explanation:

Math book+Science book+Backpack= 4 pounds and 29 ounces. 29 ounces= 1.8125 pounds.

5 0

4 years ago

Read 2 more answers

5×(3-2)=, what is itin expanded form, Explain

Juli2301 [7.4K]

I hope this helps you

5×(3-2)=5×1=5

or

5×3+5×(-2)=15+(-10)=15-10=5

5 0

3 years ago