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3 years ago

Look at the photo and the last one was none of the above

Mathematics

2 answers:

iris [78.8K]3 years ago

8 0

It looks like it’s gonna be B

Yanka [14]3 years ago

7 0

It should be b lmk:))

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Last week Besty made an 80 on her quiz. This week she made a 75. What is the percent of decrease in her score?

Soloha48 [4]

Answer:

4 billion

Step-by-step explanation:

65 billion pr 54 billion

5 0

3 years ago

Find the arc length of the

Agata [3.3K]

Answer:

Circle circumference = radius * 2 * PI

Arc Length = radius * 2 * PI * Central Angle / 360 degrees

Arc Length = 7 * 2 * PI * (1/4)

= 3.5 * PI

= 10.9955742876

Arc Length = 10.996 (rounded)

Step-by-step explanation:

4 0

3 years ago

Read 2 more answers

Solve each system by substitution. please help me 2x{+y=6 x{+y=3

saw5 [17]

1. x= 3/Y as a fraction btw

2. Same thing

6 0

3 years ago

Write an equation of the line that passes through the given points. (-1,5) and (2, - 7)

Vanyuwa [196]

Answer:

The equation of the straight line is 4x +y = 1

Step-by-step explanation:

Step(i):-

Given points are (-1,5) and ( 2,-7)

Slope of the line

$m =\frac{y_{2}-y_{1} }{x_{2} -x_{1} } =\frac{-7-5}{2-(-1)} = \frac{-12}{3} = -4$

slope of the line m = -4

Step(ii):-

The equation of the straight line passing through the point (-1,5) and having slope 'm' = -4

$y - y_{1} = m( x-x_{1} )$

y - 5 = -4 ( x-(-1))

y -5 = -4 x -4

4 x + y -5 +4=0

4x +y -1 =0

Final answer:-

The equation of the straight line is 4x +y = 1

6 0

3 years ago

What is ( √2 - √3 )² =

allochka39001 [22]

just use FOIL (First, Outer, Inner, Last).

( √2 - √3 ) X ( √2 - √3 )

First: √2 X √2 = 2
Outer: √2 X -√3 = -√6
Inner: -√3 X √2 = -√6
Last: -√3 X -√3 = 3

and then add them together.

2 - √6 - √6 + 3
5 - 2(√6)

The answer is 5 - 2(√6) .

4 0

3 years ago

Read 2 more answers