2 years ago

Verify the -(-x) = x for x= -21/31

Mathematics

1 answer:

aliina [53]2 years ago

6 0

Answer:

-3

Step-by-step explanation:

because of the root

You might be interested in

A manufacturer gets a shipment of 580 batteries of which 27 are defective. The store manager wants to be able to test random sam

alekssr [168]

Kate

Step-by-step explanation:

hcl+Na2co3=2Nacl+h2o+co2

8 0

3 years ago

[tex]\sqrt{x} 196<br> can someone help me

Maslowich

Answer:

Step-by-step explanation:

√196

Calculate the square root of 196 and get 14.

8 0

2 years ago

Read 2 more answers

True or false: The base of a polyhedron is also a face of the polyhedron

Katena32 [7]

True: A face of a polyhedron is simply a flat boundary that helps forms the 3D solid.

4 0

3 years ago

Gravel is being dumped from a conveyor belt at a rate of 15 ft3/min, and its coarseness is such that it forms a pile in the shap

gayaneshka [121]

Answer:

0.13 ft/min

Step-by-step explanation:

We are given that

$\frac{dV}{dt}=15ft^3/min$

We have to find the increasing rate of change of height of pile when the pile is 12 ft high.

Let d be the diameter of pile

Height of pile=h

d=h

Radius of pile,r= $\frac{d}{2}=\frac{h}{2}$

Volume of pile= $\frac{1}{3}\pi r^2 h=\frac{1}{12}\pi h^3$

$\frac{dV}{dt}=\frac{1}{4}\pi h^2\frac{dh}{dt}$

h=12 ft

Substitute the values

$15=\frac{1}{4}\pi(12)^2\frac{dh}{dt}$

$\frac{dh}{dt}=\frac{15\times 4}{\pi(12)^2}$

$\frac{dh}{dt}=0.13ft/min$

7 0

3 years ago

Given: △ABC, AB=5√2 m∠A=45°, m∠C=30° Find: BC and AC

Naddik [55]

Answer:

BC = 10, AC= approximately 13.66 OR 5+5 √3

Step-by-step explanation:

Law of Sines

5 0

3 years ago

Verify the -(-x) = x for x= -21/31​

Verify the -(-x) = x for x= -21/31