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4 years ago

Please help me with this algebra question. Image attached.

Mathematics

1 answer:

sammy [17]4 years ago

4 0

C cause there is negative and positive intervals

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Find f(-3) for f(x) = 4(2)^x.<br> ОА. 1/8<br> O B. -32<br> O C. -24<br> OD. 1/2

Ipatiy [6.2K]

Answer:

Step-by-step explanation:

using the rule of exponents

$a^{-m}$ = $\frac{1}{a^{m} }$

substitute x = - 3 into f(x)

f(- 3) = 4( $(2)^{-3}$ = 4 × $\frac{1}{2^{3} }$ = 4 × $\frac{1}{8}$ = $\frac{1}{2}$

5 0

2 years ago

I’ll be very grateful for anyone’s help I added a photo of the question

Irina18 [472]

Answer:

Step-by-step explanation:

4 0

3 years ago

Read 2 more answers

1.Which expressions are polynomials? Select each correct answer. Pick more then one.

madreJ [45]

If all the power of the variables are greater than or equal to zero, then the expression is a valid polynomial.

So,

$7x^{7}-x-5$

$35x^{2}$

$\frac{x}{5}+2$

are polynomials.

$x^{2} -x\sqrt{2}$

2 + s

$4x^{2} +y$

are all polynomials.

If the degree of the polynomial is 3, then it is a cubic polynomial. If the number of terms of a polynomial is 3, then it is a trinomial.

Hence, $-5x^{3}-4x+1$ is a cubic trinomial.

The highest power is the degree.

Hence, degree of the polynomial is 2 + 4 = 6.

6 0

3 years ago

Read 2 more answers

triangular park ABC has sides 3 m, 5 m, and 6 m. a gardener ravi wants to put a fence all around it and also plant grass inside.

Mariana [72]

Step 1) Check if the given triangle lengths form a right triangle

3^2 + 5^2 = 6^2

9 + 25 = 36

36 = 36

Step 2) Solve for the area of the triangle

Formula: A = 1/2 x base x height

A = 1/2 x 3 x 5

A = 1/2 x 15

A = 7.5 m^2

Step 3) Solve for the perimeter of the triangle

Formula: P = sum of all sides

P = 3 + 5 + 6

P = 14 m

Ravi needs to plant 7.5m^2 of grass and put up a fence that is 14m in total length.

Hope this helps!! :)

7 0

3 years ago

What is 10500 m = ..... km?

Vinvika [58]

Since there are 100p meters in a kilometer you divide 10500 by 1000 and you get 10.5 km

8 0

3 years ago

Read 2 more answers