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3 years ago

PLEASEE HELP ILL GIVE BRAINLIEST AND 100 POINTS THIS IS DUE TODAY

Mathematics

1 answer:

Vsevolod [243]3 years ago

4 0

Answer:

I'm pretty sure 381

Step-by-step explanation:

I added 80,60,30, and 40 then divided it by 1000 to get a standard.

then i multiplied eachone by the answer to 210/1000 (which is 38.1 rounded)

I made sure to add them togetger and make sure it equalled 1000 which it did.

therefore 80•38.1 ... = 381

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Solve for x.<br> A) 6<br> B) 4<br> C) 5<br> D) 7

inn [45]

Answer:

Step-by-step explanation:

Aight, let's hop to it:

So we got

$\frac{5x}{45} = \frac{20}{36} = = > \\ \frac{x}{9} = \frac{5}{9} = = > \\ x = 5$

and boom

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2 years ago

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nikklg [1K]

Number 6 would be
$\sqrt{124}$
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3 years ago

Need help asap !! i’ll mark brainly .

kirill [66]

Answer:

The last answer choice

Step-by-step explanation:

$2\dfrac{3}{5}$

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7 0

3 years ago

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The heights of a group of boys and girls at a local middle school are shown on the dot plots below.

stira [4]

D, or The girls are generally taller than the boys.

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8 0

3 years ago

Let L be the line parametrized by x = 2 + 2t, y = 3t, z = −1 − t. (a) Find a linear equation for the plane that is perpendicular

Elden [556K]

Answer:

Step-by-step explanation:

Given that L is a line parametrized by

$x = 2 + 2t, y = 3t, z = −1 − t$

The plane perpendicular to the line will have normal as this line and hence direction ratios of normal would be coefficient of t in x,y,z

i.e. (2,3,-1)

So equation of the plane would be of the form

$2x+3y-z =K$

Use the fact that the plane passes through (2,0,-1) and hence this point will satisfy this equation.

$2(2)+3(0)-(-1) =K\\K =5$

So equation is

$2x+3y-z =5$

b) Substitute general point of L in the plane to find the intersecting point

$2(2+2t)+3t-(-1-t) =5\\4+8t+1=5\\8t=0\\t=0\\(x,y,z) = (2,0,-1)$

i.e. same point given.

3 0

3 years ago