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3 years ago

True or False? (9x - 8) - (x + 4) = 8x +12

Mathematics

1 answer:

NNADVOKAT [17]3 years ago

3 0

Step-by-step explanation:

(9x-8)-(x+4)=8x+12

9x-8-x-4=8x+12

8x-12=8x+12 (no it's not)

So it's false.

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Question: brainly.com/question/19989741

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How much principal must be deposited in a 2 year simple interest account that pays 1.75% interest to earn $300 in interest?

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Answer:

Step-by-step explanation:

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2 years ago

What is the value of x?

Phantasy [73]

Answer:

value of x = 5.8 mm

Step-by-step explanation:

We have given,

Two right triangles EDH and EDG.

In right triangle EDH, EH = 56mm , DH = 35 mm

Using Pythagoras theorem we can find ED.

i.e EH² = ED²+DH²

56²=ED²+35²

ED²=56²-35²

ED = √(56²-35²) = 7√39 = 43.71 mm

Now, Consider right triangle EDG

Here, EG=44.8mm , GD = x+4 and ED = 7√39

Again using Pythagoras theorem,

EG² = ED² + DG²

44.8²= (7√39)²+ (x+4)²

(x+4)² = 44.8² - (7√39)²

x+4 = √(44.8² - (7√39)²)

x+4 = 9.8

or x = 9.8 - 4 = 5.8 mm

Hence we got the value of x = 5.8 mm

6 0

3 years ago

The quantity of Sensitech laser gaming mice demanded each month is related to the unit price by the equation p = 480.03x2 + 1 (0

stich3 [128]

Answer: a) $p=480.03x^2+1$ , b) $R'(x)=1440.09x^2+1$ c) $5761.36.

Step-by-step explanation:

Since we have given that

Unit price is expressed as

$p=480.03x^2+1$

Let x be the number of units of a thousands.

So, Revenue function is given by

$R(x)=px\\\\R(x)=x(480.03x^2+1)\\\\R(x)=480.03x^3+x$

.(b) Find the marginal revenue function R'..

Marginal revenue function becomes,

$R'(x)=3\times 480.03x^2+1\\\\R'(x)=1440.09x^2+1$

$R'(2)=1440.09(2)^2+1\\\\R'(2)=5760.36+1\\\\R'(2)=5761.36$

Hence, a) $p=480.03x^2+1$ , b) $R'(x)=1440.09x^2+1$ c) $5761.36.

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3 years ago

Evaluating an Expression

Anna35 [415]

Answer:

130

Step-by-step explanation:

18+(4x28)

=18+112

=130

Remember PEMDAS!

5 0

3 years ago

Read 2 more answers

If h(-8), find 1/3*h(x) = x^2-5x+7

Lynna [10]

The value is 333

<h3>How to determine the function</h3>

From the information given, we have:

x = - 8
1/3*h(x) = x^2-5x+7

Now, let's substitute the value of 'x' in the function:

1/3*h(x) = x^2-5x+7

1/ 3 × h(-8) = ( - 8)² - 5 ( -8) + 7

Make 'h ( -8)' the subject of formula

h ( -8) = $\frac{( -8)^2 - 5(-8) + 7}{1/ 3}$

h ( -8) = $\frac{64 + 40+ 7 }{1/ 3}$

Take the sum of the numerator

h ( -8) = $\frac{111}{1/3}$

Take the inverse of the denominator and multiply

h ( -8) = 111 × 3/ 1

h ( -8) = 333

We can see that through the substitute of the value of x as - 8, we get 333

Thus, the value is 333

Learn more about algebraic expressions here:

brainly.com/question/723406

#SPJ1

7 0

2 years ago