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o-na [289]
2 years ago
6

9. Let f(x) = 4x + 7 and g(x) = 3x - 5. Find.(g×f)(-4) Pick one

Mathematics
1 answer:
gladu [14]2 years ago
5 0

Answer:

-32

Step-by-step explanation:plug f(x) equation in the x in the g equation so you have 3(4x+7)-5

then distribute the 3 and you end up with 12x+21-5

combine like terms

12x+16

plug in negative four and solve


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erastovalidia [21]
A = a+b/ 2 h the / is a fraction btw.
6 0
2 years ago
Read 2 more answers
Kayak: $329.95, 33% off find the discount price
mafiozo [28]

Answer:

$221.07

Step-by-step explanation:

To find the discount price, you do 329.95*.67= 221.0665

221.0665 is rounded to 221.07

Hope this helps!

6 0
2 years ago
Really confused on question 30.
Andreas93 [3]
The answer is 2,000


hoped I helped :)
7 0
3 years ago
Un rectangulo tiene area de 15/40 cm cuadrados y sabemos que uno de sus lados mide 5/8 cuanto medira el otro lado
GaryK [48]

Queremos encontrar la medida de un lado de un rectangulo, dado que conocemos la longitud del otro lado y el area del rectangulo.

Veremos que el otro lado del rectangulo mide 3/5 cm

Sabemos que para un rectangulo de largo L y ancho W, el area esta dada por:

A = L*W

En este caso sabemos que el area es igual a (15/40) cm^2.

Y sabemos que uno de sus lados (digamos que es el ancho) mide (5/8) cm.

Entonces podemos reemplazar eso en la ecuación del area:

(15/40) cm^2 = L*(5/8) cm.

Ahora podemos resolver esto para L.

L = (15/40 cm^2)/(5/8 cm) = (15/40 cm^2)*(8/5 cm^-1)

L = 3/5 cm

El otro lado del rectangulo mide 3/5 cm

Sí quieres aprender más, puedes leer:

brainly.com/question/8916743

6 0
2 years ago
I need help with my geometry homework! Thank you! I will mark brainliest!!!!
Firlakuza [10]

Answer:

The first choice is the one you want

Step-by-step explanation:

Use geometric means to solve for a first. The formula is

8^2=15a and 64 = 15a and a = 64/15

That one was quite easy.  Finding b is a bit more difficult.

The formula for finding b is

\frac{a}{b}=\frac{b}{15+a}

Solving for b:

b^2=a(15+a)

Filling in we have

b^2=15(\frac{64}{15})+(\frac{64}{15})^2 and

b^2=64+\frac{4096}{225} and

b^2=\frac{18496}{225} so b = 136/15

3 0
3 years ago
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