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3 years ago

Please help me I need it please answer it correctly please help me please

Mathematics

1 answer:

jeka57 [31]3 years ago

7 0

On the 7th, Andi had $48 in her account. We want to find when she had $92 less than what she had on the 7th.

First, let's find out how much $92 less is:

48 - 92 = -44

We are looking for when Andi had $-44 in her account. Looking at the number line, the day Andi had $-44 in her account was on the 14th.

The correct answer is C. The 14th.

Hope this helps!! :)

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Please help. I can't figure out answer.

IgorC [24]

Answer four hundred and twenty

8 0

4 years ago

Use the Factor Theorem and synthetic division to show x + 5 is a factor of f(x) = 2x3 + 7x2 − 14x + 5

olga2289 [7]

Answer:

Factor theorem: $f(-5) = 0$ .

Synthetic division: $f(x) = (x + 5)\, (2\, x^2 -3\, x + 1)$ .

Step-by-step explanation:

<h3>Factor Theorem</h3>

By the factor theorem, a monomial of the form $(x - a)$ (where $a$ is a constant) is a factor of polynomial $f(x)$ if and only if $f(a) = 0$ .

In this question, the monomial is $(x + 5)$ , which is equivalently $(x - (-5))$ . $a = -5$ .

$\begin{aligned}& f(-5) \\ &= 2 \times (-5)^{3} + 7 \times (-5)^{2}- 14\times (-5) + 5\\ &= -250 + 175 + 70 + 5 \\ &= 0\end{aligned}$ .

Hence, by the factor theorem, $(x + 5)$ , which is equivalent to $(x - (-5))$ , is a factor of $f(x)$ .

<h3>Synthetic Division</h3>

$\begin{aligned}& f(x) \\ &= 2\, x^{3} + 7\, x^{2} - 14\, x + 5 \\ &= \underbrace{(x + 5) \, (2\, x^2)}_{2\, x^{3} + 10\, x^{2}} - 3\, x^{2} - 14\, x + 5 \\ &= \underbrace{(x + 5) \, (2\, x^2)}_{2\, x^{3} + 10\, x^{2}} + \underbrace{(x + 5)\, (-3\, x)}_{-3\, x^{2} - 15\, x} + (x + 5) \\ &= (x + 5)\, (2\, x^{2} - 3\, x + 1)\end{aligned}$ .

The remainder is $0$ when dividing $f(x)$ by $(x + 5)$ . Hence, $(x + 5)\!$ is a factor of $f(x)\!$ .

6 0

3 years ago

Help I will be marking brainliest!!!

pickupchik [31]

Answer:

8 0

3 years ago

PLEASE HELP ASAP!!!!!!!!!

Katarina [22]

Answer:

Complementary angles form a right angle (L shape) and have a sum of 90 degrees. Supplementary angles form a straight line and have a sum of 180 degrees. If the relationship is given, you can subtract the given angle from the sum to determine the measure of the missing angle.

Step-by-step explanation:

7 0

3 years ago

Part 2 Assignment (6 problems)

iragen [17]

Answer:

1. $327.60

2. $21,560.00

3. $2,208.28

Step-by-step explanation:

The formula for simple interest is:

I = Prt

where

I = amount of interest

P = principal amount

r = annual interest rate

t = number of years

The total future amount after earning simple interest is the principal polus the interest.

F = P + Prt

F = P(1 + rt)

F = P(1 + rt)

F = $210(1 + 0.08 * 7)

F = $327.60

F = P(1 + rt)

F = $14,000(1 + 0.06 * 9)

F = $21,560.00

F = P(1 + rt)

F = $1,900(1 + 0.059 * 2.75)

F = $2,208.28

4 0

3 years ago

Read 2 more answers