True or False. 43 = 62

Mathematics

1 answer:

strojnjashka [21]2 years ago

7 0

False...............

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A machine paints 340 toy boats in 45 minutes.Which expression equals the rate per hour?

Elenna [48]

Answer:

The expression for rate per hour is $\frac{340}{45}\times 60$ .

Explanation:

Given:

A machine paints 340 toy boats in 45 minutes.

To Find:

Expression equals the rate per hour?

Solution:

Finding the expression for rate per minute:

$\text{{The rate per minute expression}} =\frac{\text{{ (number of toys painted in time given)}}}{\text{{(number of minutes taken)}}}$

So, rate per minute expression is $\frac{(340 toys)}{(45 minutes)}$ = $\frac{340}{45}$

Then, rate per hour expression $\text{{rate per minute}}\times 60 minutes$

So, rate per hour expression is $\frac{340}{45}\times60 minutes$ = 453.334 toys per hour.

Hence, the expression for rate per hour is $\frac{340}{45}\times 60$

8 0

3 years ago

Anderson uses the discriminant to correctly find the number of real solutions of the quadratic equation one-halfx2 4x 8 = 0. whi

amid [387]

Anderson could provide 0.5x2 + 4x + 8 = 0 has exactly one real root if the discriminant is 0,

<h3>What is quadratic equation?</h3>

Any equation that can be rewritten in standard form as where x represents an unknown, a, b, and c represent known numbers, and where a 0 is true is a quadratic equation. As there is no ax2 term when a = 0, the equation is linear rather than quadratic.

<h3>What is discriminant?</h3>

A polynomial's discriminant is a quantity that depends on the coefficients and enables for some root attributes to be inferred without actually computing them. It is actually a polynomial function of the original polynomial's coefficients.

<h3>According to the given information:</h3>

0.5x^2 + 4x + 8 = 0

The discriminant is computed utilizing:

d = b^2 - 4ac

Thus, we have:

d = 4^2 - 4 * 0.5 * 8

Evaluate

d = 0

The equation has only one real root since the discriminant is 0,

To know more about discriminant visit:

brainly.com/question/16369636

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