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3 years ago

I need help with number 5

Mathematics

1 answer:

GREYUIT [131]3 years ago

5 0

The domain is all the ones under the x and the range are the numbers under the y (that goes fo any question like that)

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Joseph invested $89,000 in an account paying an interest rate of 6.6% compounded quarterly. Assuming no deposits or withdrawals

vova2212 [387]

Answer:

Step-by-step explanation:

Answer:15

5 0

2 years ago

Factor the quadratic equation below to reveal the solutions. X^2+4x-21=-9

a_sh-v [17]

Answer:

x = 3 and x = -7

Step-by-step explanation:

The given quadratic equation is $x^2+4x-21=0$ . We need to find the solution of this equation.

If the equation is in the form of $ax^2+bx+c=0$ , then its solutions are given by :

$x=\dfrac{-b\pm \sqrt{b^2-4ac} }{2a}$

Here, a = 1, b = 4 and c = -21

Plugging all the values in the value of x, such that :

$x=\dfrac{-b+ \sqrt{b^2-4ac} }{2a},\dfrac{-b- \sqrt{b^2-4ac} }{2a}\\\\x=\dfrac{-4+ \sqrt{(4)^2-4\times 1\times (-21)} }{2(1)},\dfrac{-4- \sqrt{(4)^2-4\times 1\times (-21)} }{2(1)}\\\\x=3, -7$

So, the solutions of the quadratic equation are 3 and -7.

6 0

3 years ago

Catie earned $3,511.95 last month. She used 3/5 of her earnings to pay her bills. With the remaining money she bought two skirts

andrew11 [14]

Answer:

$Amount \ left = 1345.81$

Step-by-step explanation:

$Total \ earning = T= $3,511.95$

$Spent \ on \ Bills = B = \frac{3}{5} T = 2107.17$

$Remaining \ amount = R = T-B = $3,511.95 - 2107.17\\R = 1404.78$

$Spent \ on \ Shopping = S = 2($21.99) + $14.99\\S = 58.97$

$Amount \ left = L = R - S\\Amount \ left = 1404.78 - 58.97\\Amount \ left = 1345.81$

5 0

2 years ago

Write an equation of a parabola with a vertex at the origin and the given focus 10. Focus at (-1,0)

Nostrana [21]

Step-by-step explanation:

focus(p) is on the x axis= -1

vertex=(0,0)

parabola equation----- (y-h)^2 =4p(x-k)

(h, k)=(0,0)

(y-0)^2 =4(-1)(x-0)

y^2 = -4x

that is the answer

3 0

2 years ago

Rewrite the formula to find the width of the base of the prism if the volume, length of the base, and height of the prism are al

notsponge [240]

Answer:

w = V/lh

Step-by-step explanation:

The volume of a rectangular prism is calculated using the formula V = lwh, where V is the volume of the prism, l and w are the length and width of the base of the prism, respectively, and h is the height of the prism.

Rewrite the formula to find the width of the base of the prism if the volume, length of the base, and height of the prism are already known.

volume of a rectangular prism,V = lwh

Where,

l = length of the base of the prism

w = width of the base of the prism

h = height of the prism

Rewrite the formula to find w

V = lwh

w = V/lh

That is,

width of the base of the prism = volume of the prism divided by length of the base of the prism multiplied by height of the prism

5 0

2 years ago