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2 years ago

14

Pls answer the first one to answer and get right will get Brainliest

2 answers:

scoray [572]2 years ago

8 0

Answer:

The answer is 7

Step-by-step explanation:

julia-pushkina [17]2 years ago

5 0

Answer:

x=-2

Step-by-step explanation:

add 5 to get rid of the -5 and then -4 become 1 then multiply by 10 to get rid of the divide by 10 then 10 times 1 equals 10 so then you divide by negative 5 so now you have x=10÷-5 and that equals -2

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Please help I with give Brainiest if correct

padilas [110]

Answer:

Perimeter of the rectangle = 6 x +20

Perimeter of the rectangle = 0<em> x² + 6 x + 20</em>

Step-by-step explanation:

<u><em>Step(i):-</em></u>

Given that the length of the rectangle = 2x +3

Given that the width of the rectangle = x +7

Perimeter of the rectangle = 2(length + width)

<u>Step(ii):-</u>

Perimeter of the rectangle = 2(length + width)

= 2(2 x +3 + x+7)

= 4x +6+2x+14

= 6 x +20

<u><em>Final answer:-</em></u>

Perimeter of the rectangle = 6 x +20

Perimeter of the rectangle = o x² + 6 x + 20

7 0

2 years ago

D<br> Evaluate<br> arcsin<br> (6)]<br> at x = 4.<br> dx

sineoko [7]

Answer:

$\frac{1}{2\sqrt{5} }$

Step-by-step explanation:

Let, $\text{sin}^{-1}(\frac{x}{6})$ = y

sin(y) = $\frac{x}{6}$

$\frac{d}{dx}\text{sin(y)}=\frac{d}{dx}(\frac{x}{6})$

$\frac{d}{dx}\text{sin(y)}=\frac{1}{6}$

$\frac{d}{dx}\text{sin(y)}=\text{cos}(y)\frac{dy}{dx}$ ---------(1)

$\frac{1}{6}=\text{cos}(y)\frac{dy}{dx}$

$\frac{dy}{dx}=\frac{1}{6\text{cos(y)}}$

cos(y) = $\sqrt{1-\text{sin}^{2}(y) }$

= $\sqrt{1-(\frac{x}{6})^2}$

= $\sqrt{1-(\frac{x^2}{36})}$

Therefore, from equation (1),

$\frac{dy}{dx}=\frac{1}{6\sqrt{1-\frac{x^2}{36}}}$

Or $\frac{d}{dx}[\text{sin}^{-1}(\frac{x}{6})]=\frac{1}{6\sqrt{1-\frac{x^2}{36}}}$

At x = 4,

$\frac{d}{dx}[\text{sin}^{-1}(\frac{4}{6})]=\frac{1}{6\sqrt{1-\frac{4^2}{36}}}$

$\frac{d}{dx}[\text{sin}^{-1}(\frac{2}{3})]=\frac{1}{6\sqrt{1-\frac{16}{36}}}$

$=\frac{1}{6\sqrt{\frac{36-16}{36}}}$

$=\frac{1}{6\sqrt{\frac{20}{36} }}$

$=\frac{1}{\sqrt{20}}$

$=\frac{1}{2\sqrt{5}}$

4 0

2 years ago

Simplify the expression -(6 - 4p)

Illusion [34]

Hey there!

The answer to your question is $-6+4p$

Given:

$-(6-4p)$

First, we distribute the negative sign to both terms ( $6$ $and$ $-4p$ ) This would make the $6$ negative and the $-4p$ positive, so we have:

$-6$ $and$ $4p$

Add them together and we get:

$-6+4p$

Have a nice day!

8 0

3 years ago

What is the range of the data below 33, 38, 35.5,39.25, 31.75

Lunna [17]

Answer:

1.25

Step-by-step explanation:

5 0

2 years ago

Read 2 more answers

Which algebraic representation shows a reduction?

Grace [21]

Answer:

D. (x, y) → $(\frac{1}{2}x,\frac{1}{2}y)$

Step-by-step explanation:

A dilation is a transformation which reproduces an image of the same shape as the original, but might be of a different size.

When the dilation produces a smaller image is called a reduction.

Mathematically, a reduction occurs whenever the scale factor is between 0 and 1.

Out of the options, the only one that has a scale factor less than one is:

(x, y) → $(\frac{1}{2}x,\frac{1}{2}y)$

Since the scale factor is 1/2 which is less than 1.

All other options are not reductions.

5 0

3 years ago