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3 years ago

9

PLEASE HELP!!

1 answer:

kirza4 [7]3 years ago

3 0

Answer:

Each line segment joining a vertex of ABCD to the corresponding vertex in the image is perpendicular to the line of reflection, EF. That is, the lines intersect at a 90 degree angle.

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At a garage sale, each book is priced the same price You purchase 3 fiction books, 5 picture books, 2 non fiction books, and 4 p

BARSIC [14]

Answer:

3x+5x+2x+4x

Step-by-step explanation:

let x= cost of 1 book

i’m pretty sure that’s it

6 0

3 years ago

Sal the sloth takes one hour to travel 7 1/2 feet. If he continues to travel at the same rate, how long will it take him to trav

pentagon [3]

Answer:

4 hours

Step-by-step explanation:

Since we know he travels at a rate of 1:7.5 all we have to do is divide 7.5 by 30. Do you use proportions? You can set this up as a proportion and the find answer easily.

1 $\frac{1}{7.5} =\frac{x}{30}$

Now we cross product.

7.5 multipled by x =7.5x

1x30=30

so now we have

7.5x=30

Now we have to divide 7.5 on both sides which gives us

x=4

3 0

2 years ago

BRAINLIEST + 30PTS<br><br> Use the form x^m • x^n = x^m+n<br><br> to solve for (x2y)(x3y4) = x^5y^5

Dimas [21]

Step-by-step explanation:

(x²y)(x³y⁴)
x²y×x³y⁴
x²×x³×y×y⁴
x^2+3×y^1+4
x⁵×y⁵
x⁵y⁵

7 0

3 years ago

You are given an original figure with coordinates B(-7,-2), A(5,-2), and D(-7,7) and its image with coordinates J(-3,0), K(1,0),

MAVERICK [17]

Answer:

see below

Step-by-step explanation:

DB = 9 units (by counting)

BA = 12 units (by counting)

DA can be found by using the pythagorean theorem

a^2 +b^2 = c^2

BD^2 + BA^2 = DA ^2

9^2 +12^2 = DA^2

81 +144 = DA^2

225 = DA ^2

Take the square root of each side

sqrt(225) = sqrt(DA^2)

15 = DA

LJ = 3 units (by counting)

JK = 4 units (by counting)

LK can be found by using the pythagorean theorem

a^2 +b^2 = c^2

LJ^2 + JK^2 = LK ^2

3^2 +4^2 = LK^2

9 +116 = LK^2

25 = LK ^2

Take the square root of each side

sqrt(25) = sqrt(LK^2)

5 = LK

Scale factor from BAD to JKL

15 to 5

Divide each side by 5

3 to 1

We multiply by 1/3 to go from the big to small

7 0

3 years ago

Simply the imaginary number square root -45

Paraphin [41]

Answer:

3i $\sqrt{5}$

Step-by-step explanation:

Using the rule of radicals

$\sqrt{a}$ × $\sqrt{b}$ ⇔ $\sqrt{ab}$

and $\sqrt{-1}$ = i

Given

$\sqrt{-45}$

= $\sqrt{9(5)(-1)}$

= $\sqrt{9}$ × $\sqrt{5}$ × $\sqrt{-1}$

= 3 × $\sqrt{5}$ × i

= 3i $\sqrt{5}$

6 0

3 years ago