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Molodets [167]
3 years ago
8

Model the problem with algebra tiles. Then use the model to write an algebraic expression that represents the situation. Enrique

decreased his weight by four pounds for the wrestling tournament. How can you model this situation? The situation can be modeled with algebra tiles as and . The situation can be represented as the algebraic expression .
Mathematics
2 answers:
Svetach [21]3 years ago
8 0

Answer:

Model the problem with algebra tiles. Then use the model to write an algebraic expression that represents the situation.

Enrique decreased his weight by four pounds for the wrestling tournament.

How can you model this situation?

The situation can be modeled with algebra tiles as

✔ one orange x tile

and

✔ four blue – tiles

.

The situation can be represented as the algebraic expression

✔ x – 4

.

Step-by-step explanation:

Sergio039 [100]3 years ago
8 0

Answer:

Model the problem with algebra tiles. Then use the model to write an algebraic expression that represents the situation.

Enrique decreased his weight by four pounds for the wrestling tournament.

How can you model this situation?

The situation can be modeled with algebra tiles as

✔ one orange x tile

and

✔ four blue – tiles

.

The situation can be represented as the algebraic expression

✔ x – 4

Step-by-step explanation:

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Sam said shape A has a uniform cross section. Lloyd said shape B has a uniform cross section. Who is correct? Explain your answe
STatiana [176]

Answer:

Sam is right. shape A which is cylinder has uniform cross section.

Explanation:

what is uniform cross section?

uniform cross section is when cut through an object and the bases are similar.

solution:

For cylinder:

when we cut a cylinder, its in a circle shaped and have similar bases - thus have uniform cross section.

For pyramid:

when we cut a pyramid it is in rectangle shape and this changes as we go up or down the pyramid and does not have uniform cross section.

4 0
3 years ago
Read 2 more answers
A leading magazine (like Barron's) reported at one time that the average number of weeks an individual is unemployed is 27 weeks
miss Akunina [59]

Answer:

X ~ N(27, 4) ;

xbar ~ N(27, 0.1026) ;

0.5 ;

0.5

Step-by-step explanation:

Probability distribution of X : N(μ, σ²)

μ = 27 ; σ = 2

X ~ N(μ, σ²) = X ~ N(27, 2²) ;X ~ N(27, 4)

Distribution is approximately normal ; μ = xbar ; xbar = 27

(Standard Error)² = (σ/√n)²= (2/√39)² = 0.1026

xbar ~ N(μ, σ²) = xbar ~ N(27, 2²) ; xbar ~ N(27, 0.1026)

Probability that a randomly selected individual found a job in less than 27 weeks :

P(X < 27) :

Obtain the Zscore :

Z = (x - μ) / σ

Z = (27 - 27) / 2 = 0/2

Z = 0

P(Z < 0) = 0.5

D.) n = 36

P(X < 27) :

Obtain the Zscore :

Z = (x - μ) / σ/√n

Z = (27 - 27) / (2/√36) = 0/0.33333

Z = 0

P(Z < 0) = 0.5

7 0
3 years ago
A door of a lecture hall is in a parabolic shape. The door is 56 inches across at the bottom of the door and parallel to the flo
Arada [10]

Answer:

The parabolic shape of the door is represented by y - 32 = -\frac{2}{49}\cdot x^{2}. (See attachment included below). Head must 15.652 inches away from the edge of the door.

Step-by-step explanation:

A parabola is represented by the following mathematical expression:

y - k = C \cdot (x-h)^{2}

Where:

h - Horizontal component of the vertix, measured in inches.

k - Vertical component of the vertix, measured in inches.

C - Parabola constant, dimensionless. (Where vertix is an absolute maximum when C < 0 or an absolute minimum when C > 0)

For the design of the door, the parabola must have an absolute maximum and x-intercepts must exist. The following information is required after considering symmetry:

V (x,y) = (0, 32) (Vertix)

A (x, y) = (-28, 0) (x-Intercept)

B (x,y) = (28. 0) (x-Intercept)

The following equation are constructed from the definition of a parabola:

0-32 = C \cdot (28 - 0)^{2}

-32 = 784\cdot C

C = -\frac{2}{49}

The parabolic shape of the door is represented by y - 32 = -\frac{2}{49}\cdot x^{2}. Now, the representation of the equation is included below as attachment.

At x = 0 inches and y = 22 inches, the distance from the edge of the door that head must observed to avoid being hit is:

y -32 = -\frac{2}{49} \cdot x^{2}

x^{2} = -\frac{49}{2}\cdot (y-32)

x = \sqrt{-\frac{49}{2}\cdot (y-32) }

If y = 22 inches, then x is:

x = \sqrt{-\frac{49}{2}\cdot (22-32)}

x = \pm 7\sqrt{5}\,in

x \approx \pm 15.652\,in

Head must 15.652 inches away from the edge of the door.

8 0
4 years ago
BRAINLIEST!!!!!!!! please help me
Neporo4naja [7]

Answer:

cookies

Step-by-step explanation:

6 0
3 years ago
Does 1 and 1/4 = 4 divided by 5
lora16 [44]

Answer:

No, 4÷5=0.8, not 1 and 1/4

6 0
4 years ago
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