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3 years ago

13

Solve (images attached) can u check if correct

1 answer:

viva [34]3 years ago

7 0

Answer:

Yes it's correct

Step-by-step explanation:

90 + 40 = 130

180 - 130 = 50

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3x-(2x-1)=7x-(3*5x)+(-x+24)

Paraphin [41]

Answer:

$\boxed{\boxed{\sf x=\frac{23}{10}}\: \sf or \:\boxed{x=2.3}}$

_________________

$\boxed{\sf Step\: By\:Step:- }$

$\sf 3x-\left(2x-1\right)=7x-\left(3\times \:5x\right)+\left(-x+24\right)$

<u>Remove the parentheses:</u>

$\to\sf 3x-\left(2x-1\right)=7x-3\times \:5x-x+24$

<u>Combine like terms:</u>

$\sf ^*7x-x=6x$

$\to\sf 3x-\left(2x-1\right)=6x-3\times \:5x+24$

<u>Multiply 3 and 5x = 15x:-</u>

$\to\sf 3x-\left(2x-1\right)=6x-15x+24$

<u>Combine like terms:</u>

$\sf ^*6x-15x=-9x$

$\to\sf 3x-\left(2x-1\right)=-9x+24$

<u>Expand: 3x-(2x-1)= x+1</u>

$\to\sf x+1=-9x+24$

<u>Subtract 1 from both sides:</u>

$\to\sf x+1-1=-9x+24-1$

$\to\sf x=-9x+23$

<u>Add 9x to both sides:</u>

$\to\sf x+9x=-9x+23+9x$

$\to\sf 10x=23$

<u>Divide both sides by 10:</u>

$\to\sf \cfrac{10x}{10}=\cfrac{23}{10}$

$\to\sf x=\cfrac{23}{10}$

<u>________________________________</u>

3 0

3 years ago

Evaluate in the following expression when x = 4 and y = 5

PIT_PIT [208]

Fraction with x squared plus y cubed in the numerator and 2 plus x in the denominator.
3.8
14.83
19.58
23.5

7 0

3 years ago

Sin(x2 + y2) da r , where r is the region in the first quadrant between the circles with center the origin and radii 2 and 5

sweet [91]

Converting to polar coordinates gives

$\displaystyle\iint_R\sin(x^2+y^2)\,\mathrm dA=\int_{\theta=0}^{\theta=\pi/2}\int_{r=2}^{r=5}\sin(r^2)r\,\mathrm dr\,\mathrm d\theta$
$=\displaystyle\pi\int_{r=2}^{r=5}2r\sin(r^2)\,\mathrm dr$
$=\displaystyle\pi\int_{r^2=4}^{r^2=25}\sin(r^2)\,\mathrm d(r^2)$
$=-\cos(r^2)\bigg|_{r^2=4}^{r^2=25}$
$=\pi(\cos4-\cos25)$

3 0

3 years ago

What is the value of the expression?

lora16 [44]

-square root 3 over 3
hope this helps.

7 0

3 years ago

Can someone pls give me the answer I don’t get it and it’s due in 20 mins

horrorfan [7]

Answer:

Step-by-step explanation:

Cameron, Eliot, Ryan and Ava can ride as their height is more than or equal to 54

7 0

3 years ago

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