What is the value of 5k2−6 when k = 9?

Mathematics

1 answer:

Anarel [89]2 years ago

5 0

Answer:

Step-by-step explanation:

Plug in 9 for k.

5(9)(2) - 6

first: (9)(2) = 9 x 2 = 18

5(18) - 6

second: 5(18) = 5 x 18 = 90

last: 90 - 6 = ?

hope this helps

You might be interested in

Solve for the unknown side in the right triangle if b=24 and c=26 find a

cluponka [151]

Answer:

Option C

Step-by-step explanation:

Use the <u>Pythagorean Theorem</u> to find the unknown side.

$a^2+b^2=c^2$

<h3>We are given that:</h3>

b=24

c=26

We need to solve for a.

$a^2+24^2=26^2\\\\ \text {Solve Exponents:}\\\rightarrow 24^2 = 576\\\rightarrow 26^2 = 676\\\\a^2+576=676\\\rightarrow a^2+576-576=676-576 \text{ (Subtraction Property of Equality)}\\a^2=100\\\sqrt{a^2} =\sqrt{100} \text { (Take the square root on both sides.) }\\\\\boxed {a=100}$

<em>Option C should be the correct answer.</em>

3 0

3 years ago

Read 2 more answers

PLEASE HELP !!!! ILL GIVE BRAINLIEST !!!

valentinak56 [21]

They are congruent.
you use 12x-18 = 8x+10 to solve for x

8 0

2 years ago

Anybody know this i need help

myrzilka [38]

Since it is given that the triangle is a right angle, and one of the other angles is 30 degrees, then we know that this triangle is a 30, 60, 90 triangle. In a 30, 60, 90 triangle, the opposite side of the shortest angle is half of the hypotenuse (which is given as 6). So knowing this, the value of y would be D. 3.

8 0

3 years ago

Read 2 more answers

Ok heelp ummmm........

Elan Coil [88]

Answer:

Step-by-step explanation:

7 0

3 years ago

Read 2 more answers

The sum of the interior angles of a polygon is

Crank