2 years ago

Evaluate: (9 - 3)2 + 5 = 1 3

Mathematics

1 answer:

Lemur [1.5K]2 years ago

4 0

Answer:

17 ≠ 13

Step-by-step explanation:

(9 - 3)2 + 5 = 13 PEMDAS

(6)2 + 5 = 13

12 + 5 = 13

17 = 13

You might be interested in

Lexi made 14 sandwiches for a group picnic. The number of ham sandwiches she made was 4 less than the twice the number of turkey

shutvik [7]

x = # of ham sandwiches

14-x = # of turkey sandwiches ( as Lexi made 14 sandwiches)

as the question said that the number of ha sandwiches are 4 less than twice number of turkey sandwiches,

x = 2 * (14-x) - 4 = 24 - 2x

3x=24

x = 8

the number of ham sandwiches is 8, and the number of turkey sandwiches is 14-8=6

6 0

2 years ago

Marcus is designing a structure to hold up scenery for the school play. The structure must be a right triangle.

Nina [5.8K]

Answer:

Step-by-step explanation:

7 0

2 years ago

What is seven less than three times a number.

sukhopar [10]

Let’s use y as a replacement for a number. You would do 3y-7 since you multiply by three and take away seven.

3 0

2 years ago

Read 2 more answers

The gradiant y=2x³-5x+1 at point (2,7)

olga2289 [7]

Given:

The equation of the curve is:

$y=2x^3-5x+1$

To find:

The gradient (slope) of the given curve at point (2,7).

Solution:

We have,

$y=2x^3-5x+1$

Differentiate the given equation with respect to x.

$y=2(3x^2)-5(1)+(0)$

$y'=6x^2-5$

Now we need to find the value of this derivative at (2,7).

$y'_{(2,7)}=6(2)^2-5$

$y'_{(2,7)}=6(4)-5$

$y'_{(2,7)}=24-5$

$y'_{(2,7)}=19$

Therefore, the gradient (slope) of the given curve at point (2,7) is 19.

8 0

2 years ago

Train X traveled 216.6 kilometers in 38 minutes. How many miles per hour was it traveling?

lara31 [8.8K]

Answer:

210 miles in 1 hour

Step-by-step explanation:

steps are in picture

6 0

2 years ago

Evaluate: (9 - 3)2 + 5 = 1 3​

Evaluate: (9 - 3)2 + 5 = 1 3