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Tom [10]
2 years ago
13

Very simple yes no questions

Mathematics
1 answer:
earnstyle [38]2 years ago
5 0

Answer:

No for 1

yes for 2

Step-by-step explanation:

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A rectangle shed is fenced with 120ft long barbed wire. If length of the shed is twice as long as the width, that is the length?
creativ13 [48]

Answer:

40 ft  

Step-by-step explanation:

<em>Data: </em>

(1) P = 120 ft

(2) l = 2w

<em>Calculations: </em>

(3)  P = 2l + 2w           Substitute (1) and (2) into (3)

  120 = 2(2w) + 2w     Multiply

  120 = 4w +2w           Combine like terms

  120 = 6w                   Divide by 6

(4) w = 20 ft                Substitute (4) into (2)

      l = 2 × 20

      l = 40 ft

<em>Check: </em>

120 = 2×40 + 2×20

120 = 80 + 40

120 = 120

7 0
3 years ago
Write a quadratic function to model the graph to the right
Komok [63]

Answer:

y = x² + 2x + 5

Step-by-step explanation:

The equation of a parabola in vertex form is

y = a(x - h)² + k

where (h, k) are the coordinates of the vertex and a is a multiplier

Here the vertex = (- 1, 4), thus

y = a(x + 1)² + 4

To find a substitute (0, 5) a point on the graph into the equation

5 = a(0 + 1)² + 4

5 = a + 4 ( subtract 4 from both sides )

a = 1, thus

y = (x + 1)² + 4 ← expand and simplify

  = x² + 2x + 1 + 4

  = x² + 2x + 5

6 0
3 years ago
50 points Prove and find the measurement?
nydimaria [60]

Answer:

see below

Step-by-step explanation:

Angle ACE = DCE since they are vertical angles

Angle A = Angle E parallel lines cut by a transversal form congruent alternate interior angles

Angle B = Angle D parallel lines cut by a transversal form congruent alternate interior angles

When all three angles are equal, the triangles are similar.

We can use ratios to find DE

DE         CE  

------- = ----------

AB           AC

DE         8

------- = ----------

12           10

Using cross products

10 DE = 8*12

10 DE = 96

Divide by 10

DE = 9.6

7 0
3 years ago
Read 2 more answers
Jane Marko buys a car for $43,900.00. in three years, the car depreciates 48% in value. How much is the car worth in three years
Oduvanchick [21]
<span>So we want to know what is the value of the car after three years if the car depricates in value for 48% and we know that the initial value of the car is 43900$. So if the price depricates for 48%, that means the new value is 52% of the initial value so: 43900$*0.52=22828$. So C is the correct answer.</span>
6 0
3 years ago
What is the value of the x variable in the solution to the following system of equations? 4x + 2y = 12 x – y = 3
Dmitrij [34]

Answer:

all work is shown and pictured

3 0
3 years ago
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