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3 years ago

Decrease 28 by 7% immmmmmmmmm soooooooo stuck

Mathematics

1 answer:

iris [78.8K]3 years ago

3 0

First, multiply 28 x 7/100
then subtract the product from 28
therefore:
28 - (7/100 x 28)

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Please help.. no links:)

Nuetrik [128]

¡Hola! Mi mayor consejo es usar una aplicación de escaneo donde puedas escanear tu respuesta y encontrarás tu respuesta fácilmente haciéndolo. ¡espero que esto ayude!

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3 years ago

Read 2 more answers

Determine if the lines r1(t) = <3, 0, 2> + t <1, 2, −2> and r2(s) = <0, 1, −1> + s <4, 1, 1> intersect,

Temka [501]

Answer:

Yes lines are intersecting, point of intersection is <4,2,0>.

Step-by-step explanation:

Given parametric equations of line are:

$r_{1}(t) = + t \\ r_{1}(t) = \\ r_{1}(t) = ---(1)$

$r_{2}(s) = + s \\ r_{2}(s) = \\ r_{2}(s) = ---(2)\\$

If lines are intersecting then parametric coordinates of (1) are equal to (2)

$3+t=4s---(A)\\2t=1+s---(B)\\2-2t=s-1---(C)\\$

Considering A and B to find values of t and s

From A

t=4s-3---(D)

Putting in (B)

2(4s-3)=1+s

8s-6=1+s

7s=7

s=1

Then

t=4-3

t=1

If lines are intersecting then these values of s and t must satisfy (C)

2-2(1)=1-1

0=0

This shows lines are intersecting.

At this value of t, (1) becomes

$r_{1}(1) = \\=$

Putting s=1 in (2)

$r_{2}(1)=4, 1+1,-1+1>\\=$

Point of intersection is <4,2,0>.

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3 years ago

!!!!!!!!!!!!!!!!!!!WHEN DO YOU FLIP SIGNS IN INEQUALITIES????????????

Oksanka [162]

Whenever u multiply or divide an inequality by a negative number u must flip the inequality sign <span />

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3 years ago

Read 2 more answers

What is a mother function

zmey [24]

A mother function is the simplest function of a family of functions.

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3 years ago

A Triangle has an angle that measures 137.3 degrees. The other two angles are in a ratio of 3:4. What are the measures of those

Andreyy89

So we start off by subtracting 137.3 from 180 getting 42.5. If you add the ratios up (3+4) you get 7 and 7 should equal 42.5. thus,

42.5/7= 85/14

(85/14)*3=18.2 or (255/14 to be exact)
(85/14)*4= 24.29 or (170/7 to be exact)

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3 years ago