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2 years ago

What is the product (4x)( -3x^6)(-7x^3)

Mathematics

1 answer:

11111nata11111 [884]2 years ago

7 0

Answer:

84x^10

Step-by-step explanation:

The coefficients multiply, and the exponents add.

(4x)( -3x^6)(-7x^3) = (4)(-3)(-7)x^(1+6+3) = 84x^10

The rule for exponents is ...

(x^a)(x^b) = x^(a+b)

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I understand the switching of positive and negative signs but I don’t understand how to get to the next step which is the answer

Finger [1]

2ab - 3a = a.(2b-3)

now the same thing

let's say n=1

a.(2b-3) + n.(2b-3) = (2b-3).(a+n)

Understood?

6 0

2 years ago

a storage jug was 4/5 full of water when did get indicated 72 what was the full capacity of the storage jug

IRISSAK [1]

Answer:

90. ( was the full capacity of jug)

to solve this 

firstly let the full capacity of jug 

 

be. x

so, 

4/5*x = 72

x = 72*5/4

x = 90

hope it helps

6 0

2 years ago

A person is standing 50 ft from a statue. The person looks up at an angle of elevation of 8 degrees when staring at the top of t

borishaifa [10]

The height of the statue is 19.5 feet.

Why?

We can solve the problem using trigonometric formulas. In this case, we are going to use the trigonometric formula of the tangent.

We know that the person is standing 50ft from the statue, so, it will be the base of the two triangles formed by both angles (elevation and depression)

Using the trignometric formula, we have:

First triangle:

$tg(\alpha )=\frac{h_{1}}{base} \\\\tg(8\°)=\frac{h_{1}}{50ft}\\\\0.14*50ft=h_1\\\\h_1=7ft$

Second triangle:

$tg(\alpha )=\frac{h_{2}}{base} \\\\tg(14\°)=\frac{h_{1}}{50ft}\\\\0.25*50ft=h_1\\\\h_1=12.5ft$

Now, the total height of the statue will be:

$TotalHeight=h_1+h_2=7ft+12.5ft\\\\TotalHeight=19.5ft$

Have a nice day!

8 0

2 years ago

Can someone pls answer this?❤️

nata0808 [166]

Answer:

i want to say the answer is A

Step-by-step explanation:

8 0

2 years ago

How many solutions does have 3x-6=3(x-2)

Anarel [89]

Answer:

Infinite.

Step-by-step explanation:

$3x-6=3\left(x-2\right)$

Expand:

$3x-6=3x-6$

Add 6 to both sides:

$3x-6+6=3x-6+6$

$3x=3x$

Subtract 3x from both sides:

$3x-3x=3x-3x$

$0=0$

No matter what x is, it doesn't affect the answer. Thus, the equation is true for all values of x.

3 0

2 years ago