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3 years ago

What is (4x+2)^2-3 ??

Mathematics

1 answer:

Veronika [31]3 years ago

4 0

(4x+2)²-3
16x²+4-3
16x²+1

Hope this helps :)

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At the metal-casting company where you work, you must set up a conveyor system to move castings from the furnace to the heat tre

Mazyrski [523]

Answer:

2.35 yards/second or 7.07 ft/second

Step-by-step explanation:

The distance to be covered is 55 yards.

The casting cools at the rate of $0.3^\circ \text F$ and the temperature must not be allowed to cool more than $7^\circ \text F$ .

We know that, $\text {distance} = \frac{\text {speed}}{\text {time}}$

By the time, the temperature reaches $7^\circ \text F$ , it will take about,

$\frac{7}{0.3}=23.33\text s$ , so it will take about 23.33 seconds.

Also, 55 yards = $55 \times 3 =165 ft$

So the minimum speed that conveyor must move is,

$\frac{165}{23.33}=7.07 ft/s$

Hence, the speed of conveyor is 7.07 feet per second.

5 0

3 years ago

Read 2 more answers

Which trigonometric function has the same value as sin 75?

Sonbull [250]

The answer would be tan (44).

For sin (75)
The answer will be computed this way:
sin 75º = sin (30)º + 45º= sin 30 cos 45+cos 30 sin 45= 1/2*√2/2+√3/2*√2/2=√2/4+√6/4=(√2+√6)/4Check with calculator:sin 75º ≈ 0.9659

For tan (44): checking with the calculator the answer is also: ≈ 0.9659

6 0

3 years ago

Mark as brainly answerereeere asap

aliya0001 [1]

Answer : 84m^2=A
Photo Shows Solving Steps.

Hope this helps!

~ Penny

5 0

3 years ago

Read 2 more answers

Classify the following Polynomial by the number of Terms

kvv77 [185]

Answer:

Trinomial

Step-by-step explanation:

we know that

A polynomial can be classified by its number of terms.

A polynomial with one term is called monomial, a polynomial with two terms is called a binomial, and a polynomial with three terms is called a trinomial

In this problem we have

$9x^3+2x^2+4x$

This polynomial has three terms

therefore

Is a trinomial

8 0

4 years ago

What are the steps to factoring 6x^2+5x-6

Tanya [424]

Answer:

there is only one easy way to sole this

using quadratic equation

$\frac{ - b + \sqrt{ {b}^{2} - 4ac} }{2a} \\ and \: \: \\ \frac{ - b - \sqrt{ {b}^{2} - 4ac} }{2a}$

Step-by-step explanation:

a=6 b=5 c=-6

and by applying it to the equation you will get

x=0.66 and x=-1.5

7 0

4 years ago