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3 years ago

Simplify the following expressions: 1: 18 + 5s -9s - 30 2: 6(m - 4y) + 10y

Mathematics

1 answer:

yanalaym [24]3 years ago

7 0

1: -12 -4s
2: 6m -14y

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Show work please 100 points plus brainliest

JulsSmile [24]

Answer:

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Step-by-step explanation:

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4 years ago

NEED HELP ASAP, WILL GIVE BRAINLIEST

Stella [2.4K]

Given:

The equation of circle is

$(x+3)^2+y^2=9$

To find:

The polar form of given circle.

Solution:

We have,

$(x+3)^2+y^2=9$

$x^2+2(x)(3)+(3)^2+y^2=9$ $[\because (a+b)^2=a^2+2ab+b^2]$

$(x^2+y^2)+6x+9=9$

Subtracting 9 from both sides, we get

$(x^2+y^2)+6x=0$

We know that, $x^2+y^2=r^2$ and $x=r\cos \theta$ .

$r^2+6(r\cos \theta)=0$

$r(r+6\cos \theta)=0$

$r=0$ and $r+6\cos \theta=0$

We know that, r is radius it cannot be 0. So,

$r+6\cos \theta=0$

$r=-6\cos \theta$

Therefore, the correct option is A.

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3 years ago

on the first day of the food drive,Mrs.Teasley's classes brought in 6 cans of fruit, 4 cans of beans,7 boxes of noodles,and 4 ca

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4 years ago

Help on both of these pls<br> also sry the lighting is weird

IRISSAK [1]

Answer:

see explanation

Step-by-step explanation:

The 2 angles form a right angle, thus their sum is 90°, hence

4x + 7 + 35 = 90

4x + 42 = 90 ( subtract 42 from both sides )

4x = 48 ( divide both sides by 4 )

x = 12

-----------------------------------------------------

To calculate the slope m use the slope formula

m = ( y₂ - y₁ ) / ( x₂ - x₁ )

with (x₁, y₁ ) = (0, 0) and (x₂, y₂ ) = (1, 4) ← 2 points on the line

m = $\frac{4-0}{1-0}$ = $\frac{4}{1}$ = 4

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4 years ago

5·4° evaluate the little dot is so pose to be a little zero

ser-zykov [4K]

5
5 × 4^0 = 5 × 1 = 5

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3 years ago