All categories

3 years ago

Evaluate the express 4(11+7)-9•8

Mathematics

1 answer:

Marina86 [1]3 years ago

5 0

Answer:

Step-by-step explanation:

4(11+7)-9•8=

(44+28)-72=

72-72=0

You might be interested in

Rewrite 3x + 4y = 10 using function notation

Contact [7]

A function notation is expressed as f(x) = ax^b + cx^d + ..... where f(x) is equal to y, In this case, to r<span>ewrite 3x + 4y = 10 using function notation, we rearrange the statement and express in terms of x only. Hence

4y = 10 - 3x
y = (10 - 3x) /4 = f(x)
f(x) = 2.5 - 0.75x</span>

3 0

4 years ago

La presa de Hidroituango tiene una altura de 225 m., alberga 20 millones de m^3 de volumen y una cresta de 550 metros de longitu

bija089 [108]

Answer:

El ancho de la superficie = 444,44 my el largo = 200 m

La superficie de la superficie de la presa = 88888,89 m²

Step-by-step explanation:

Los parámetros dados son;

La altura del agua en la presa = 225 m

El volumen de agua en la presa, d = 20 millones de m³

La longitud de la base = 200 m

Sea el ancho de la presa = x

El volumen viene dado por la relación;

200 × 225 × x = 20 millones de m³

x = 20.000.000 / (200 × 225) = 444,44 m

Por tanto, las dimensiones de la superficie son ancho = 444,44 my largo = 200 m

El área de superficie de la superficie de la presa = 444.44 × 200 = 88888.89 m².

7 0

3 years ago

Is y=19 a solution to the equation 2y=38

labwork [276]

Yes. just multiply 2x19= 38

4 0

3 years ago

a person walks 80 feet in 40 seconds. what equation represents this relationship. how many feet will the person walk in 10 secon

larisa [96]

Answer:

20 feet

Step-by-step explanation:

$\frac{80 feet}{40 seconds}$ = $\frac{x feet}{10 seconds}$

Simplify $\frac{80}{40}$

$\frac{80}{40}$ = $\frac{2}{1}$

Every 1 second, a person will walk 2 feet.

$\frac{x}{10}$ = $\frac{20}{10}$

X = 20 feet

6 0

3 years ago

Read 2 more answers

Can someone help me please. I think number one is right.

antiseptic1488 [7]

1a is right
In 1b, add the tax, don't subtract, the answer would be 36.04

2a) 32.5*.2=6.5
2b)32.5-6.5=26

3a)12.5*.13=1.63
3b)13.83

4a)59.996
4b)89.4

6 0

4 years ago