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marusya05 [52]
3 years ago
9

Please help!!! Here is 25 point please helpp

Mathematics
1 answer:
Ket [755]3 years ago
6 0

Answer:

-3

Step-by-step explanation:

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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
What are a) the ratio of the perimeters and b) the ratio of the ratio of the areas of the larger figure to the smaller figure
vfiekz [6]
Assuming that the figures given are square such that the scale factor between them is equal to 28/8 which can be further simplified into 7/2. The ratio of the perimeter is also equal to this value, 7/2. However, the ratio of the areas is equal to the square of this value giving us an answer of 49/4. 
8 0
3 years ago
Read 2 more answers
Pls hurry will give brainlyest or whatever !!!
Fiesta28 [93]

Answer:

The answer is 3

Step-by-step explanation:

The answer is 3 because x= 15/5 = 3

6 0
3 years ago
Howard invested $5,000 in Certificate of Deposit (CD) that pays 3.75% interest. compounded weekly. What is the value of the CD a
blsea [12.9K]

Answer:

The value of the CD at the end of the 4 years is $5,808.86.

Step-by-step explanation:

Compound interest:

The compound interest formula is given by:

A(t) = P(1 + \frac{r}{n})^{nt}

Where A(t) is the amount of money after t years, P is the principal(the initial sum of money), r is the interest rate(as a decimal value), n is the number of times that interest is compounded per year and t is the time in years for which the money is invested or borrowed.

Howard invested $5,000 in Certificate of Deposit (CD) that pays 3.75% interest.

This means that P = 5000, r = 0.0375

Compounded weekly

An year has 52 weeks, so n = 52

Then

A(t) = P(1 + \frac{r}{n})^{nt}

A(t) = 5000(1 + \frac{0.0375}{52})^{52t}

What is the value of the CD at the end of the 4 years?

This is A(4). So

A(4) = 5000(1 + \frac{0.0375}{52})^{52*4} = 5808.86

The value of the CD at the end of the 4 years is $5,808.86.

6 0
3 years ago
The vertex of this parabola is at (2,-4). When the y-value is -3, the x-value is
Fed [463]

Answer:

Step-by-step explanation:

The equation of a parabola in vertex form is

y = a(x - h)² + k

where (h, k) are the coordinates of the vertex and a is a multiplier

here (h, k) = (2, - 4), thus

y = a(x - 2)² - 4

To find a substitute (- 3, - 3) into the equation

- 3 = a(- 3 - 2)² - 4

- 3 = 25a - 4 ( add 4 to both sides )

1 = 25a ( divide both sides by 25 ), hence

a = \frac{1}{25}

y = \frac{1}{25} (x - 2)² - 4 ← in vertex form

  = \frac{1}{25} (x² - 4x + 4) - 4 ← in expanded form

Hence the coefficient of the x² term is \frac{1}{25}

6 0
3 years ago
Read 2 more answers
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