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Natasha2012 [34]
3 years ago
5

Brandon Brandon Drew the two congruent squares shown he divided one square into 2 congruent triangular parts he divided the othe

r square into 2 congruent rectangular parts
Mathematics
1 answer:
Luba_88 [7]3 years ago
5 0

Incomplete question: <em>Options</em>

(a) Each triangular part and each rectangular part represents 1/2 the area of one square.

(b) Each triangular part has an area that is greater than the area of each rectangular part.

(c) Each triangular part and each rectangular part represents 1/4 the area of one square

(d) Each rectangular part has an area that is greater than the area of each triangular part.

<em>See attachment for squares</em>

Answer:

(a) Each triangular part and each rectangular part represents 1/2 the area of one square.

Step-by-step explanation:

Given

See attachment

Required

Which statement is true

Before the division, the area of both squares is:

Area = l * w

After the division:

The area of the triangle is:

Area = \frac{1}{2} * base * height

A_1 = \frac{1}{2} * l * w

Substitute Area for l * w

A_1 = \frac{1}{2} *Area

This equals half the area of the square

The area of the rectangle is:

Area = length * width

The length of the rectangle is now half the length of the original square.

So, we have:

A_2 = \frac{1}{2} l * w

Substitute Area for l * w

A_2 = \frac{1}{2} *Area

<em>From the values of A1 and A2, we can conclude that (a) is true</em>

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1. Given: AB = 64; M lies on the line AB
Gnom [1K]

Answer:

Step-by-step explanation:

Given the following lengths AB = 64, AM = 4x + 4 and BM= 6x-10, If M lies on the line AB  then AM+MB = AB (addition property)

Substituting the given parameters into the addition property above;

AM+MB = AB

4x + 4 + 6x - 10 = 64

combine like terms

4x+6x = 64+10-4

10x = 74-4

10x = 70

Divide both sides by 10

x = 70/10

x = 7

Note that for M to be the midpoint of AB then AM must be equal to BM i.e AM = BM

To get AM ;

Since AM = 4x+4

substitute x = 7 into the function

AM = 4(7)+4

AM = 28+4

AM = 32

Similarly, BM = 6x-10

BM = 6(7)-10

BM = 42-10

BM = 32

<em></em>

<em>Since AM = BM = 32,. then M is the midpoint of AB</em>

6 0
4 years ago
Which equation has a slope
Dominik [7]
All the choices are in the slope-intercept form where,

y=mx+b

so, the number before the x is the slope. The given slope is -34. We just have to look for the -34 number before the x. So mong the choices, it is the letter a choice that has the slope -34. So the answer is A.
7 0
4 years ago
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Find the value of x......
tangare [24]

Answer:

X=6

Step-by-step explanation:

It is under enlargement and reduction

Therefore we can equates sides because of the parallel lines

\frac{12}{18}  = \frac{4}{x}

Cross multiply

12x = 72

dividing through by 12

x =  \frac{72}{12}

simplify

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8 0
4 years ago
X+4,x+12,x-1 and x+5 are in proportion.find the value of x
Anastaziya [24]

Answer:

Step-by-step explanation:

As they are in proportion,

x +4  : x +12   :: x -1  : x + 5

Product of means  = Product of extremes

(x + 12)(x -1) = (x +4)(x+5)

Use FOIL method for polynomial multiplication

x*x + x*(-1) + 12*x + 12*(-1) = x*x +  x*5  + 4*x + 4*5

x² - x + 12x - 12 = x² + 5x + 4x + 20

Combine like terms

x² + 11x - 12 = x² + 9x + 20

x² + 11x - 12 - x² - 9x - 20 = 0

Combine like terms

x² - x² + 11x -9x   -12 -20 = 0

2x - 32 = 0

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5 0
2 years ago
A sprinkler system is being installed in a newly renovated building on campus. The average activation time is supposed to be at
melomori [17]

Answer:

A) t = 1.73

B) p-value =  0.0558

C) Data is not statistically significant because the p-value of 0.0558 is more than the significance value of 0.05

D) The decision means that the design specifications are not met.

E) Type II error

Step-by-step explanation:

The hypotheses are:

H₀: μ = 20

H₁: μ > 20

A) Formula for the test statistic is;

t = (x' - μ)/(s/√n)

Now, we are given;

x' = 21.5

μ = 20

s = 3

n = 12

Thus;

t = (21.5 - 20)/(3/√12)

t = 1.73

B) we have our t-value as 1.73

Now, Degree of freedom(DF) = n - 1

So,DF = 12 - 1 = 11

Using significance level of α = 0.05, t-value = 1.73 and DF = 11, one tailed hypothesis, from online P-value calculator attached, we have;

p-value =  0.0558

C) Data is not statistically significant because the p-value of 0.0558 is more than the significance value of 0.05

D) We will not reject the null hypothesis. The decision means that the design specifications are not met.

E) If the true average activation time of the sprinkler system is, in fact, equal to 20 seconds, then the null hypothesis is false.

Since we did not reject the null hypothesis even though it is false, the error that was committed was therefore a type II error.

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3 years ago
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