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3 years ago

Please someone help me with this!!!

Mathematics

1 answer:

egoroff_w [7]3 years ago

5 0

Answer:

a₅ = -3125

Step-by-step explanation:

Given that,

a₁ = -5, r = 5 and n = 5

The geometric sequence is given by :

$a_n=a_1\cdot r^{n-1}$

Put all the values,

$a_5=-5\times 5^{5-1}\\\\=-5\times 5^4\\\\=-3125$

So, the fifth term is equal to -3125.

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CATHERINE'S MOTHER IS WRAPPING A BOX THAT IS 12 INCHES LONG X 8 INCHES WIDE X 10 INCHES IN HIGH. HOW MANY SQUARE INCHES OF WRAPP

taurus [48]

12 x 8= 96
10 x 8 =80
12 × 10= 120
120+80+96= 296

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3 years ago

Graph the line. y = -5x +5

Colt1911 [192]

Answer:

Points included: (1,0), (0,5)

Step-by-step explanation:

You already know one variable for the line, +5. Taking that +5 from the equation, you can understand that +5 will be counted as the y-axis, therefore, it'll be (0,5).

I've inserted an image of the line already graphed for you.

4 0

3 years ago

A number has the property that its square is equal to 84 more than five times the number. Enter all numbers that have this prope

Liono4ka [1.6K]

Answer:

The numbers for which the given property hold true are 12 and -7

Step-by-step explanation:

Let the number be $x$ .

As per the given statement:

Square of the number ( $x^{2}$ ) is 84 more than five times of the number ( $5x+84$ ).

Writing in the equation form:

$x^{2} =5x+84$

To find:

All the numbers for which above equation holds true.

Solution:

$x^{2} =5x+84$

Let us solve the above equation by rearranging the terms and then let us find the roots of the equation.

It is a quadratic equation(i.e. maximum power of $x$ is 2) so it will have 2 solutions i.e. 2 values of $x$ for which the above equation will hold true.

$x^{2} -5x-84=0$

Let us factorize the equation.

$\Rightarrow x^{2} -12x+7x-84=0\\\Rightarrow x(x -12)+7(x-12)=0\\\Rightarrow (x+7)(x-12)=0\\\Rightarrow \bold{x=12, -7 }$

So, the numbers for which the given property hold true are 12 and -7.

8 0

3 years ago

ONLY ANSWER IF YOU KNOW THIS ILL GIVE CORRECT ANSWER BRAINLIEST

coldgirl [10]

Answer:

x = -1 is the negative solution

Step-by-step explanation:

x² - 4 = 3x

x² - 3x - 4 = 0

(x - 4)(x + 1) = 0

x = 4 and x = -1.

x = -1 is the negative solution

5 0

4 years ago

Carla is renting a canoe. Canoe A costs $80 for 2 hours and Canoe B costs $110 for 4 hours. Canoe C costs $91.81 for 3.25 hours.

Harlamova29_29 [7]

Answer:

Canoe B is best canoe to choose

Step-by-step explanation:

Given:

Canoe A costs = $80 for 2 hours

Canoe B costs = $110 for 4 hours

Canoe C costs = $91.81 for 3.25 hours

Find:

Best canoe to choose

Computation:

Each hour cost;

Canoe A costs = $80 / 2 = $40 per hour

Canoe B costs = $110 / 4 = $27.5 per hour

Canoe C costs = $91.81 / 3.25 = 28.25 per hour

Canoe B is best canoe to choose

3 0

3 years ago