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3 years ago

I need help please.

Mathematics

1 answer:

Greeley [361]3 years ago

5 0

Answer is C).

One way to find the answer is to multiply the $54 by .30 (which is 30%converted to a decimal). Doing this will give you what 30% of $54 is.
This gives you 16.2
Since the question is asking what 30% off the price is, subtract the 16.2 from the $54.

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Directions attatched

irina1246 [14]

Answer:

x=7
∠GBD=112
∠EFC=112

Step-by-step explanation:

Here, we need to know about the concept of the alternate interior angle theorem. This says that the alternate interior angle of two parallel lines formed with one transversal is equal. For a more graphical explanation, please refer to the attachment below.

--------------------------------------------------------------------------

Given

∠GBD=4x+84

∠EFC=16x

m∠GBD=m∠EFC

Solve

4x+84=16x ⇔ Given

4x+84-4x=16x-4x ⇔ Subtract 4x on both sides

84=12x ⇔ Simplify

84/12=12x/12 ⇔ Divide 12 on both sides

x=7 ⇔ Simplify

Substitute the x value into each angle expression

∠GBD=4x+84=4(7)+84=28+84=112

∠EFC=16x=16(7)=112

Hope this helps!! :)

Please let me know if you have any questions

6 0

3 years ago

Problem: Find the value of $x$ that maximizes $$f(x) = \log (-20x + 12\sqrt{x}).$$ If there is no maximum value, write "NONE".

Verdich [7]

None~!! ;o lol.

have a wonderful dayy

5 0

3 years ago

Read 2 more answers

Una compañía sabe que si produce "x" unidades mensuales su utilidad "u" se podría calcular con la expresión:

belka [17]

Answer:

Δf(u) /Δx = 92,8 ( razón de cambio promedio)

Step-by-step explanation:

La expresión de la utilidad de la empresa u(x) en función de la cantidad de unidades producidas "x" es:

u(x) = 0,04*x² + 44*x -4000

Entonces la razón de cambio promedio en un intervalo (a ; b) en este caso ( 620 ; 600 ) viene dada por la expresión:

Δf(x)/ Δx = [ f(b) - f(a) ]/( b - a )

en donde f(b) y f(a) se obtienen por sustitución de los valores a y b es decir 600 y 620 respectivamente en la función f(x) = u(x) entonces

Δf(u) /Δx = [ u(b) - u(a) ]/( b -a ) (1)

u(b) = 0,04*(620)² + 44*(620) - 4000

u(b) = 15376 + 27280 -4000

u(b) = 2656 unidades

u(a) = 0,04* (600)² + 44* 600 - 4000

u(a) = 14400 + 26400 - 4000

u(a) = 800

Sustituyendo esos valores en la ecuación 1

Δf(u) /Δx = 2656 - 800 / 620 - 600

Δf(u) /Δx = 92,8

5 0

4 years ago

10 Pts + Brainliest for the best answer

Maru [420]

Answer:

165 = TUV

Step-by-step explanation:

FUT+FUV = TUV

We know FUV = 125 and TUF = 40

Substituting these in

40 + 125 = TV

165 = TUV

6 0

4 years ago

Read 2 more answers

A rectangles perimeter is 124 ft. its length is 2 ft shorter than THREE TIMES its width. use an equation to find the rectangles

adell [148]

<u>Answer</u>:

Length will be 46 ft and width will be 16 ft

<u>Explanation</u>:

Let the width be x.

then the length will be 3x - 2

using the rectangle perimeter formula:

2( length + width )

2(x + 3x-2) = 124

2(4x-2) = 124

8x - 4 = 124

8x = 128

x = 16 ft

Width will be 16 ft and

Length: 3x - 2

: 3(16)-2

: 46 ft

6 0

2 years ago

Read 2 more answers