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3 years ago

Let f(x) = 4x - 7 and g(x) = 2x - 3. Find (f.g) (4)

Mathematics

1 answer:

Inga [223]3 years ago

4 0

F(g(4)) = 4(2(4) - 3) - 7 = 4(8- 3) -7
20 - 7 = 13.

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Two sides of an acute triangle meaure 5 inches and 8 inches. The length of the longest side is unknown. What is the greatest pos

gladu [14]

The greatest whole possible whole number length of the unknown side is 9 inches.

<h3>How to identify if a triangle is acute?</h3>

Let us have:

H = biggest side of the triangle

And let we get A and B as rest of the two sides.

Then we get:

$A^2 + B^2 < C^2$

then the triangle is acute

Two sides of an acute triangle measure as 5 inches and 8 inches

The length of the longest side is unknown.

We have to find the length of the unknown side

WE know that the longest side of any triangle is a hypotenuse

For an acute triangle we know:

$A^2 + B^2 < C^2$

Here in this sum,

a = 5 inches

b = 8 inches

c = ?

Substituting we get,

$A^2 + B^2 < C^2\\\\5^2 + 8^2 < C^2\\\\25 + 64= C^2$

c < 9

Hence, The greatest whole possible whole number length of the unknown side is 9 inches.

Learn more about angles;

brainly.com/question/14489478

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3 0

2 years ago

C/2 - 3 + 6/d when c=14 d=3

Nataliya [291]

Answer:

Step-by-step explanation:

14/2 - 3 + 6/3

Divide 14 by 2 to get 7.

7−3+6/3

Subtract 3 from 7 to get 4.

4+6/3

Divide 6 by 3 to get 2.

4+2

Add 4 and 2 to get 6.

4 0

2 years ago

A third grade teacher has 20 students in her class. Fifteen of the students are girls and five are boys. What is the ratio of gi

svetoff [14.1K]

Answer:

15 : 5 = 3 : 1

Step-by-step explanation:

8 0

3 years ago

What is this answer Evaluate 1/6+2/3<br><br>

Setler79 [48]

Answer:

5/6

Step-by-step explanation:

To add fraction, find LCD and then combined

3 0

3 years ago

If A is a square matrix of order 2, then det(-3A) is *

Vsevolod [243]

Answer:

c. 9 det A

Step-by-step explanation:

Given the following data;

Since A is a square matrix of order 2, we know that n = 2

K = 3

For any scalar k;

∣kA∣ = k^{n} ∣A∣

<em>Substituting into the equation;</em>

∣-3A∣ = -3²∣A∣

Simplifying, we have;

∣-3A∣ = 9∣A∣

= 9 detA

<em>Therefore, det (-3A) = 9 detA</em>

6 0

3 years ago

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