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3 years ago

Express ( x + 4 )∧2 as a trinomial in standard form.

Mathematics

2 answers:

mamaluj [8]3 years ago

8 0

Answer: x²+8x+16

Step-by-step explanation:

(x+4)^2=(x+4)(x+4)

Now use distributive property to expand (x+4)(x+4):

(x+4)(x+4)=x²+4x+4x+4(4)

x²+4x+4x+4(4)=x²+8x+16

otez555 [7]3 years ago

5 0

Answer:

x^2+8x+16

Step-by-step explanation:

Assuming that is to the power of two

We can use special products to do this which states that the answer to this will be a^2+2ab+b^2 where the first value is a and the second value is b. So we just plug that in and do x^2+8x+16.

We can also just do (x+4)(x+4) and do that out but that takes more time and you'll get the same answer.

Let me know if you have any questions

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Use a net to find the surface area of the cone to the nearest square centimeter. Use 3.14 for л. The surface area of the cone is

SashulF [63]

The surface area of the cone rounded to the nearest whole number is; 346 cm²

<h3>How to determine the cone surface area?</h3>

We are given the parameters:

Radius; r = 5 cm

Slant height; l = 17 cm

The surface area is gotten from the formula;

A = πr(r +l)

Plug in the relevant values to get;

A = 3.14 × 5 × (5 + 17)

A = 345.5 square centimeters

Approximating to a whole number gives;

A = 346 square centimeters

Thus, the surface area of the cone is 346 square centimeters

Read more about surface area of cone at; brainly.com/question/6613758

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8 0

1 year ago

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PLEASE HELP ME =(((((((((((((((((((((((

artcher [175]

Answer:

The answer is

$y = - 5x - 2$

Step-by-step explanation:

❃Incase you forgot what the linear equation formula is ☟

$y = mx + b$

❃Incase you also forgot, The is what the slope formula is ☟

$m = \frac{y_2 - y_1 }{x_2 - x_1}$

➊ First: We are going to be solving for the slope.

$m = \frac{ - 2 - 3}{0 - ( - 1)} = \frac{ - 5}{ \: \: \: 1} = - 5$

➋Second: We find the y-intercept.

$y = mx + b \\ 3 = - 5( - 1) + b \\ 3 = 5 + b \\ \frac{ - 5 = - 5 \ \ \: \: \: \: \: \: }{ - 2 = b}$

➌Third: Plug in.

$y = - 5x - 2$

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2 years ago

How do you reduce the ratio 4:80

4vir4ik [10]

You reduce by since they are even number you divide each by 2, 2:40, if you can still divide then do so, it simplifies to 1:20

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3 years ago

Which of the following best describes the pattern in the diagram shown

Vikentia [17]

As you move from left to right, the number of points in the star increases by 1 and is the best option which describes the diagram which is therefore denoted as option B.

<h3>What is a Point?</h3>

This can be referred to an important object in geometry and is usually represented by a dot. It also helps to tell the exact location of substances or objects and doesn't have certain parameters such as the length or width.

We can deduce that Star 1 has four points, star 2 has five points and star 3 has six points. We can therefore infer that the stars in the diagram given below has some amount of points which increases by one as we move from left to right thereby making it the most appropriate choice in this type of scenario.

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1 year ago

Which expression correctly represents "nine less than the quotient of a number and four, increased by three"?

kogti [31]

Answer:9-x/4+3

Step-by-step explanation:

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3 years ago