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2 years ago

-9y + 8(4z + 3y) -6x PLZ HELP

Mathematics

2 answers:

hichkok12 [17]2 years ago

4 0

Answer: 32z+15y-6x

Step by step:

-9y+8(4z+3y)-6x

-9y+32z+24y-6x

15y+32z-6x

32z+15y-6x

miss Akunina [59]2 years ago

3 0

Answer:

15y + 32z - 6x

Step-by-step explanation:

-9y + 8(4z + 3y) -6x

=> -9y + 32z + 24y - 6x

=> 15y + 32z - 6x

Hoped this helped.

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Find the missing side lengths. Leave your answers as radicals in simplest form. Show your work to support your answer

kotegsom [21]

Answer

x=2 and y=2√2

Step-by-step explanation:

$\sin( \alpha ) = \frac{2 \sqrt{2} }{x } \\ x = \frac{2 \sqrt{2} }{ \sin(45) } \\ x = 4 \\ {x}^{2} = {y}^{2} + 2 \sqrt{2} \\ {4}^{2} = {y}^{2} + (2 \sqrt{2 \: )}^{2} \\ 16 = {y}^{2} + 8 \\ 16 - 8 = {y}^{2} \\ y = \sqrt{8} \\ y = 2 \sqrt{2}$

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2 years ago

Which sentence represents the inequality -2b + 7 > 27.5?<br> Help PLEASE!

AVprozaik [17]

-2b + 7 > 27.5
- 2b > 27.5 - 7
- 2b > 20.5
b < - 10.25

7 0

3 years ago

Read 2 more answers

Max observes the zoo and the library from a helicopter flying at a height of 400 times square root of 3 feet above the ground, a

-BARSIC- [3]

Answer: First option: 800 feet

Solution:

Height: h=400 sqrt(3)

Distance between the zoo and the point in the ground below the helicopter: d1=?

Distance between the library and the point in the ground below the helicopter: d2=?

Distance between the zoo and the library: d=?

d=d2-d1

tan 60°= h/d1

sqrt(3)=400 sqrt(3) / d1

Solving for d1:

sqrt(3) d1 = 400 sqrt(3)

d1= 400 sqrt(3) / sqrt(3)

d1=400

tan 30°= h/d2

sqrt(3) / 3=400 sqrt(3) / d2

Solving for d2: Cross multiplication:

sqrt(3) d2 = 3 [ 400 sqrt(3) ]

sqrt(3) d2 = 1,200 sqrt(3)

d2= 1,200 sqrt(3) / sqrt(3)

d2=1,200

d=d2-d1

d=1,200 feet - 400 feet

d=800 feet

5 0

3 years ago

Read 2 more answers

Select the correct answer. Joshua likes to read. He read 6 books when he was 6 years old. Every year he doubled the number of bo

astra-53 [7]

Answer: C.186

Step-by-step explanation:

1. You know that he read 6 books when he was 6 years old and every year he doubled the number of books he read the previous year.

2. Let's call $n$ the number of book he read each year and $n_t$ the number of books he read between the ages of 6 and 10, then:

- At 6 years old:

$n=6$

- At 7 years old:

$n=6*2=12$

- At 8 years old:

$n=12*2=24$

- At 9 years old:

$n=24*2=48$

- At 10 years old:

$n=96$

The total books he read between the ages of 6 and 10 is:

$n_t=6+12+24+48+96\\n_t=186$

4 0

3 years ago

What is the greatest possible error if Bruce measured a buckle as 3.2 cm using the ruler?

IgorLugansk [536]

Answer:

The greatest possible error for the measurement 3.2 cm is 0.05 cm.

Step-by-step explanation:

We have given that,

Bruce measured a buckle as 3.2 cm using the ruler

We have to find,

What is the greatest possible error?

Solution is given by,

The greatest possible error is defined as the error is half of the measuring unit.

Bruce measured a buckle as 3.2 cm using the ruler.

The measuring unit is nearest tenth of a cm or 0.1 cm.

The greatest possible error is half of 0.1.

i.e. $GPE=\frac{0.1}{2}$

$GPE=0.05}$

Therefore, The greatest possible error for the measurement 3.2 cm is 0.05 cm.

5 0

3 years ago