Ask question

Ask question

All categories

2 years ago

7

9x^2 - 16x + 60 = 0

1 answer:

Scorpion4ik [409]2 years ago

6 0

Answer:

My answer is in the file.

Step-by-step explanation:

It would be greatly appreciated if you gave me brainlest

You might be interested in

Make the subject of the formular<br> A=arh <br>C=2Ar<br>

prohojiy [21]

Answer:

Step-by-step explanation:

I think this is it but you question want super clear

A = C/2r

3 0

2 years ago

Use Hooke's Law to determine the work done by the variable force in the spring problem. A force of 450 newtons stretches a sprin

vlada-n [284]

Answer:

The work done is 202.50Nm

Step-by-step explanation:

Given

$F =450N$

$x_1 = 30cm$

$x_2 = 60cm$

Required

The work done

First, we calculate the spring constant (k)

$F = kx_1$

$450N = k *30cm$

$k = \frac{450N}{30cm}$

$k =15N/cm$

So:

$F = kx_1$

$F(x) = 15x$

The work done using Hooke's law is:

$W =\int\limits^a_b {F(x)} \, dx$

This gives:

$W =\int\limits^{60}_{30} {15x} \, dx$

Rewrite as:

$W =15\int\limits^{60}_{30} {x} \, dx$

Integrate

$W =15 \frac{x^2}{2}|\limits^{60}_{30}$

This gives:

$W =15 *\frac{60^2 - 30^2}{2}$

$W =15 *\frac{2700}{2}$

$W =15 *1350$

$W =20250N-cm$

Convert to Nm

$W =\frac{20250Nm}{100}$

$W =202.50Nm$

7 0

3 years ago

Ignore number 2, do number one pls. 5th grade math. correct answer will be marked brainliest!

Salsk061 [2.6K]

It is d d is the answer

8 0

3 years ago

Emmerson rented an apartment for $10,245.75 for the first year she lived in the

hammer [34]

Answer:It’s 63427.90

Step-by-step explanation:

3 0

3 years ago

Can someone help me please

Solnce55 [7]

We can barely see it

8 0

2 years ago

Read 2 more answers