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4 years ago

Help I’ll rate you brainliest

Mathematics

1 answer:

saul85 [17]4 years ago

7 0

Answer:

Pretty sure it's 2 strides

Step-by-step explanation:

To get from 7 to 5 you minus by 2, and look how many spaces there are. There are 2

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when finding the surface area of a cone, do you use the slant height, or height from the middle of the cone?

Nadusha1986 [10]

You use the slant height to find the lateral surface area with the equation: (lateral)(radius)(π). and then you add that to the surface area of the circle to find the total surface area.

7 0

3 years ago

Solve using algebreic methods y=x^2+5x, y=7-x

adelina 88 [10]

Answer:

x = 1 and x = -7

Step-by-step explanation:

Given that,

$y=x^2+5x$ ...(1)

and

y = 7 -x ....(2)

Put the value of y from equation (2) in (1)

$7-x=x^2+5x\\\\x^2+5x-7+x=0\\\\x^2+6x-7=0\\\\x^2+7x-x-7=0\\\\x(x+7)-1(x+7)=0\\\\(x-1)(x+7)=0$

So,

x = 1 and x = -7

Hence, the solution of the given equations is x = 1 and x = -7

6 0

3 years ago

This is algebra 2. Would like an answer ASAP. Thanks! Between the two chunks of numbers, thats a division sign, not an addition

NeX [460]

Answer:

Simplified form of $\frac{x+1}{x^2+x-6}\div \frac{x^2+5x+4}{x-2}$ is $\mathbf{\frac{1}{(x+3)(x+4)} }$

Option A is correct answer.

Step-by-step explanation:

We need to find simplified form of $\frac{x+1}{x^2+x-6}\div \frac{x^2+5x+4}{x-2}$

Solving the given expression:

$\frac{x+1}{x^2+x-6}\div \frac{x^2+5x+4}{x-2}$

First we find factors of $x^2+x-6$

$x^2+x-6 \\= x^2+3x-2x-6\\= x(x+3)-2(x+3)\\=(x-2)(x+3)$

So, factors of $x^2+x-6$ are $(x-2)(x+3)$

Now, fining the factors of $x^2+5x+4$

$x^2+5x+4\\=x^2+4x+x+4\\=x(x+4)+1(x+4)\\=(x+1)(x+4)$

So, factors of $x^2+5x+4$ are $(x+1)(x+4)\\$

Now the given expression will become:

$\frac{x+1}{(x-2)(x+3)}\div \frac{(x+1)(x+4)}{x-2}$

Now, converting division sign into multiplication sign:

$=\frac{x+1}{(x-2)(x+3)}\times \frac{x-2} {(x+1)(x+4)}\\Cancelling, \:common\:terms\\=\frac{1}{(x+3)(x+4)}$

So, simplified form of $\frac{x+1}{x^2+x-6}\div \frac{x^2+5x+4}{x-2}$ is $\mathbf{\frac{1}{(x+3)(x+4)} }$

Option A is correct answer.

4 0

3 years ago

The more surface area an ice cube has, the more quickly it melts to cool a beverage. mark states that the ideal ice cube would b

Ber [7]

It is true that t<span>he more surface area an ice cube has, the more quickly it melts to cool a beverage. By making the length of the prism shorter by 1 and the height longer by 2, the resulting prism will look like a 2D object floating on the beverage. Thus, it will cool it faster.

The correct answer is: </span>1 by 2 by 4 or 1 x 2 x 4

5 0

4 years ago

Read 2 more answers

Somebody come help me I'm stuck in this problem how do I simplify it using exponent rule

Darina [25.2K]

Answer:

-5x^4y^3

Step-by-step explanation:

so you divide -25 by 5 and the rule is if it is division for exponents then you subtract the exponent so 6-2=4, 7-4=3, 3-3=0. z^0 is 1 so we don't have to write it out.

6 0

3 years ago