2 years ago

Simplify the following expression: -13^2=?

Mathematics

1 answer:

Dmitrij [34]2 years ago

4 0

-13²

Write the exponentiation as a multiplication

-13×13

Multiply the numbers

-169

PLEASE MARK ME AS BRAINLIEST

You might be interested in

Help giving 13 ptsss

amm1812

0, 12, 36, 108
just plug n (1,2,3,4) into the equation and that’s your answer.

6 0

3 years ago

Find the uncertainty in a calculated average speed from the measurements of distance and time. Average speed depends on distance

zzz [600]

Answer:

$\frac{\Delta v}{v}=0.426$

Step-by-step explanation:

you have that the average sped is given by the following formula:

$v(x,t)=\frac{x}{t}$

The uncertainty formula for a division is given by:

$\frac{\Delta v}{v}=\sqrt{(\frac{\Delta x}{x})^2+(\frac{\Delta t}{t})^2}$ (1)

Δv: uncertainty in speed

Δx: uncertainty in the distance = 0.9m

Δt: uncertainty in time = 0.7s

x: distance = 8.1m

t: time = 1.7s

You replace the values of all parameters in the equation (1):

$\frac{\Delta v}{v}=\sqrt{(\frac{0.9}{8.1})^2+(\frac{0.7}{1.7})^2}\\\\\frac{\Delta v}{v}=0.426$

Hence, the relation between the uncertainty in the average velocity is 0.426

4 0

2 years ago

So,some please help!

Leni [432]

4.6 is the correct answer. Hope I helped:)

5 0

2 years ago

Read 2 more answers

|c- 24| = 7c<br><br> :D :D :D

Ivanshal [37]

$c\geq0\\\\\\ |c- 24| = 7c\\\\c-24=7c \vee c-24=-7c\\\\6c=-24 \vee -8c=-24\\\\c=-4 \vee c=3\\\\-4\not \geq0\\\\\boxed{c=3}$

3 0

3 years ago

Read 2 more answers

A triangle has sides with lengths of 3 feet, 3 feet, and 5 feet. Is it a right triangle?

Anestetic [448]

Step-by-step explanation:

3^2 + 3^2 =5^2

9 +9 =25

18 =25

False 18 is not equal to 25.

7 0

1 year ago

Read 2 more answers