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2 years ago

A registration fee for a used car is 0.8% of the sale price of $5,700. How much is the fee

1 answer:

5 0

$\bf \begin{array}{|c|ll} \cline{1-1} \textit{a\% of b}\\ \cline{1-1} \\ \left( \cfrac{a}{100} \right)\cdot b \\\\ \cline{1-1} \end{array}~\hspace{5em}\stackrel{\textit{0.8\% of 5700}}{\left( \cfrac{0.8}{100} \right)5700}\implies 45.6$

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Help please <br> Right angle triangle

baherus [9]

Answer:

h ≈ 11.9

Step-by-step explanation:

Since the triangle is right we can use the cosine ratio to find h

cos24° = $\frac{adjacent}{hypotenuse}$ = $\frac{h}{13}$

Multiply both sides by 13

13 × cos24° = h

⇒ h = 11.9 cm ( to 1 dec. place )

8 0

2 years ago

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use an algebraic equation to solve the problem. the sides of a triangle are in the ratio 3:4:5. what is the length of each side

STatiana [176]

This should be the equation:

n + 4/3n + 5/3n = 90

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2 years ago

Simplify 8x - 3 (4x -2)

mash [69]

Answer:

-4x+5

Step-by-step explanation:

use FOIL

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2 years ago

Vertex = (2,5), Point (0, 1)

Rama09 [41]

Answer:

therefore y= - (x-2)^2 + 5

Step-by-step explanation:

u do this by using this format here ..,

y=a(x-h)^2+k

sub in the vertex points as h=2 and k = 5 , since the 2 is positive its sign will be -2 in the brackets because when solving for x-2=0 it is x=2

y=a(x-2)^2+5

then with your (0,1) points plug that in as y and x

1=a(0-2)^2+5

1=a(-2)^2+5

1=4a+5

1-5=4a

-4=4a

a=-1

therefore y= - (x-2)^2 + 5

8 0

2 years ago

The equation of a parabola is (y−3)2=20(x+1) .

True [87]

ANSWER

$x = - 6$

EXPLANATION

The given parabola has equation:

${(y - 3)}^{2} = 20 {(x + 1)}^{2}$

This parabola opens in the direction of the positive x-axis.

This can be rewritten as:

${(y - 3)}^{2} = 4(5) {(x + 1)}^{2}$

The vertex is (-1,3)

The directrix of this parabola is

$x = - 1 - 5$

$x = - 6$

6 0

2 years ago

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