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Serggg [28]
3 years ago
10

Round the number to the place value of the BIG number

Mathematics
1 answer:
Vera_Pavlovna [14]3 years ago
6 0

Answer:

ITS 71,900

Step-by-step explanation:

because the one next to the nine is not a  five or higher

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You put $400 in a account. The account earns $18 simple interest in 9 months. What is the annual interest rate?
Paha777 [63]
Use the formula,
I = Prt
P = Principal amount = 400
I  = interest = 18
r = annual rate
t = time in years = 9/12 = 3/4

so,
18 = 400*r*3/4

r =  0.06
so the annual interest rate is 0.06 or 6%.
8 0
3 years ago
Read 2 more answers
Lloyd deposited $14300 into a savings account, and he didn't make any deposits or withdrawals for a year. If, after interest was
Minchanka [31]

Answer:

4.06%

Step-by-step explanation:

To solve for the APY of Lloyd, we use the formula:

R=\dfrac{I}{Pt}

Since we don't know what the Interest earned is yet, we simply solve for the difference of the new balance and the old balance.

Interest Earned = $14880.58 - $14300

Interest Earned = $580.58

Now let's break down the values we have.

P = 14300

I = 580.58

t = 1

Now let's plug it into our formula.

R=\dfrac{580.58}{14300*1}

R=\dfrac{580.58}{14300}

R=0.0406or 4.06%

8 0
3 years ago
Read 2 more answers
1. Determinar la ecuación canónica de la parábola con vértice en (-2,4) y foco en (1,4) 2. Determinar el foco y el vértice de la
goldenfox [79]

Answer:

1. La ecuación de la parábola en forma canónica es x = 1/12 × (y - 4) ² - 2

2. Vértice = (-1, 3), enfoque = (-5/2, 3)

3. y = 12x no es una parábola

4. y = -8x, no es una parábola

Step-by-step explanation:

1. La ecuación estándar de una parábola es y = a · x² + b · x + c

El vértice V es (h, k)

El foco (h + p, k)

Por lo tanto, tenemos en comparación k = 4, h = -2

h + p = 1

p = 1 - h = 1 - (-2) = 3

Lo que da la ecuación como (y - k) ² = 4 · p · (x - h)

Al ingresar los valores de k, h y p, tenemos

(y - 4) ² = 4 × 3 × (x - (-2)) = 12 × (x + 2)

12 · x + 24 = (y - 4) ²

x = 1/12 × (y - 4) ² - 2

La ecuación de la parábola en forma canónica es x = 1/12 × (y - 4) ² - 2

2. Determinar el foco y el vértice de la parábola (y - 3) ² = -6 · (x + 1)

Reescribimos la ecuación en forma de vértice de la siguiente manera;

-6 · x -6 = (y - 3) ²

x = -1 / 6 × (y - 3) ² - 1

La ecuación de una parábola en forma de vértice es x = a · (y - k) ² + h

Con el vértice = (h, k)

Comparando, tenemos, h = -1 yk = 3, el vértice = (-1, 3)

También la ecuación de la parábola en forma cónica es (y - k) ² = 4 · p · (x - h)

Comparando con (y - 3) ² = -6 · (x + 1), tenemos 4p = -6, p = -3/2

El foco está en (h + p, k) que es (-1 + -3/2, 3) = (-5/2, 3)

Vértice = (-1, 3), Enfoque = (-5/2, 3)

3. Para la parábola, y = 12 · x, tenemos;

En comparación con la forma de la ecuación, y = a · x² + b · x + c

b = 12, a = 0, c = 0

Dado que el vértice = (h, k), tenemos;

h = -b / (2 × 0), h = ∞

k = a · h² + b · h + c = ∞

No hay vértice

Foco x valor = Vértice x valor = ∞

No hay foco

Directrix = (k - 1) / (4 · a) = (k - 1) / (4 × 0) = ∞, sin directriz

y = 12x no es una parábola

4. Para y = -8x, tampoco es una parábola como se muestra arriba.

4 0
3 years ago
At Devon's new job he spent $12.99, $10.50, $9.89, $6.90, and $7.58 on lunch the first week.
Mrac [35]
The mean for the second week increased by $0.40.

The mean for the first week is found by adding the data points and dividing by 5:
(12.99+10.50+9.89+6.90+7.58)/5 = $9.57

Since the cost increased by $2 the second week, we add two to the data points before dividing by 5:
(12.99+10.50+9.89+6.90+7.58+2)/5 = $9.97

To find the increase in means, subtract them:
9.97-9.57 = $0.40.
6 0
3 years ago
Read 2 more answers
Got an easy one for you guys
Oduvanchick [21]

Answer:

x=17

Step-by-step explanation:

The exterior angle theorem states that one exterior angle of a triangle is equal to the sum of its opposite interior angles. Knowing this, we can set up the following equation:

(8x-11)=(5x)+(2x+6)

Open up the parentheses

8x-11=5x+2x+6

8x-11=7x+6

Add 11 to both sides

8x-11+11=7x+6+11

8x=7x+17

Subtract both sides by 7x

8x-7x=7x+17-7x

x=17

I hope this helps!

8 0
3 years ago
Read 2 more answers
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