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3 years ago

14

Leon created a scale drawing of the school library in his art class. In the scale drawing, the length of the library is 13 inche

s. The length of the actual library is 78 feet.

2 answers:

bearhunter [10]3 years ago

8 0

Answer:

he go and back space of 49 incres a

enyata [817]3 years ago

6 0

Answer:

43.2

Step-by-step explanation:

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1.11 quiz use algebra to describe geometry part 2

Usimov [2.4K]

Answer : rotation of 90 counterclockwise° about the origin and then translation 2 unit up.

Explanation : In Δ RST, it is an right triangle with ∠R being the right angle. When we draw this triangle we see that long side of the Δ is close to the origin and the short one is below ∠R.

Now, Δ R'S'T', is also a right triangle. But he long side is parallel to the y axis and ∠S' is now above ∠R' instead of ∠S being to right of ∠R in the original Δ.

which clearly shows that the Δ is rotated at 90 degrees counter clockwise.

On drawing a new Δ; The point R" is at (1,-4), S" at (1,-1), and T" at (2,-4).

All three of these points are 2 units below the points R' S' T'.

We need to translate the triangle 2 units higher.

Therefore, the answer is to perform rotation of 90 counterclockwise° about the origin and then translation 2 unit up.

8 0

3 years ago

During a football game a concert in stenciled family three hamburgers and two white dogs for a total of $13 and another family t

jeka94

Answer:

Price of hamburgers = $2

Price of white-dogs = $3

Step-by-step explanation:

Let

The number price of hamburgers be x

The number price of white-dogs be y

Then the first family buys 3 hamburgers and 2 white -dogs for $13

3x + 2y = 13-----------------------------(1)

Another first family buys 2 hamburgers and 5 white -dogs for $16

2x + 5y = 16----------------------------(2)

To solve let us multiply eq(1) by 2 and eq(2) by 3, we get

6x + 4y = 26-----------------------------(3)

6x + 15y = 48----------------------------(4)

subracting (3) from (4)

6x + 15y = 48

6x + 4y = 26

(-)

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

11y = 22

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

$y =\frac{22}{11}$

y =2

Now substituting the value of y in eq(1),

3x + 2(2) = 13

3x + 4 = 13

3x = 13-4

3x = 9

x = $\frac{9}{3}$

x =3

4 0

4 years ago

7n2 + 8n − 12

12345 [234]

<span>7n^2 + 8n − 12
= (7n - 6)(n + 2)

cause
</span>(7n - 6)(n + 2)
= 7n^2 - 6n + 14n - 12
= 7n^2 + 8n - 12

answer
<span>D) (7n − 6)(n + 2)</span>

5 0

4 years ago

What comes next in this pattern? 7/2, 6/3, 5/4, ... 4/9 4/7 4/5

VARVARA [1.3K]

Answer:4/3

4/3

Step-by-step explanation:

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2 years ago

A circle has a radius of eight feet.

Stolb23 [73]

A: Circumference is 50.24
B: Area is 200.96
C: It would cost 1306.24$

5 0

4 years ago