All categories

3 years ago

(s – 7)^2= 0 then, what is the value of: (s-9)(s + 3)?

Mathematics

1 answer:

GrogVix [38]3 years ago

3 0

Answer:

s² - 6s - 27

Step-by-step explanation:

(s - 7)² = 0

s² + 49 - 14s = 0

Now,

(s - 9)(s + 3)

(s × s) + (s × 3) - (9 × s) - (9 × 3)

s² + 3s - 9s - 27

s² - 6s - 27

You might be interested in

(10 points for the answer)<br><br> y=

Nat2105 [25]

Answer: y=1x+4
Solving Steps:

5 0

3 years ago

If f(a)=4a-5 what is f(3)-f(1.25)

ladessa [460]

Answer:

f(a)=4a-5

1: a= -5 / f−4

f(3)-f(1.25)

2: 1.75f

Step-by-step explanation:

4 0

3 years ago

Read 2 more answers

Multiply 2^(9)*2^(2)*2^(4)

Flauer [41]

Answer:

2 ^ 15

Step-by-step explanation:

2 ^9 * 2 ^ 2 * 2 ^ 4

When we multiply numbers with the same base, we can add the exponents

a^ b * a^ c = a^(b+c)

2 ^9 * 2 ^ 2 * 2 ^ 4

2 ^ ( 9+2+4)

2 ^ 15

3 0

3 years ago

Read 2 more answers

Given: ∆ABC, AB = BC, m∠1<90°. Perimeter of ∆ABC = 25. Difference between two sides is 4. Find: AB, BC, AC. Can someone help

goldfiish [28.3K]

Answer:

AB = 7, BC = 7 and AC = 11

Step-by-step explanation:

Let AB = BC = a and CA = b

Now, given that the perimeter of the triangle is 25.

So, 2a + b = 25 ............ (1)

And 4 is the difference between the two unequal sides.

Hence, b - a = 4 .............. (2)

⇒ 2b - 2a = 8 ........... (3)

Now, solving equations (1) and (3) we get, 3b = 25 + 8 = 33

⇒ b = 11

Hence, from equation (2) we get a = b - 4 = 7

Therefore, AB = 7, BC = 7 and AC = 11 (Answer)

8 0

3 years ago

Pls help! giving thanks. What is the slope of the line (picture above)

Nezavi [6.7K]

Answer:

$slope = 1$

Step-by-step explanation:

We can see that the graph cuts the x axis at , (-1,0) and y axis at (0,1) . So we can find the slope as ,

$\implies slope = \dfrac{y_2-y_1}{x_2-x_1}\\\\\implies slope = \dfrac{ 1-0}{0+1} \\\\\implies\boxed{\boxed{ slope = 1 }}$

6 0

3 years ago