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3 years ago

6

A family wants to fence in their lawn using one side of their house as one of their sides. They have 200 feet of fencing. How la

rge is the area they can enclose?

2 answers:

Liono4ka [1.6K]3 years ago

7 0

I think the answer is 800 ft

klio [65]3 years ago

6 0

They can have 50 Ft sides

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Read two-way relative frequency tables.

zalisa [80]

Answer:

1 / 4= 25%

Step-by-step explanation:

The percent of graduates in the sample had an income under $20,000

= Posibility of had an income under $20,000 / total posible outcomes

= 75 / 300

= 1 / 4= 25%

Hope this helped :3

5 0

3 years ago

The tables show the number of points scored by two basketball teams this season.

masya89 [10]

The answer is, The means differ by only about 0.5, but the standard deviations shows that the hurricanes' number of points is generally closer to the mean.

Step-by-step explanation:

Red hawks and Hurricane in two columns.
Total of both Red hawks and Hurricane 725 and 716.
Mean is the measure of centrality.
Mean = Adding total number of points / by games played.
Formula is Ex/N.
Result mean of Red hawks and Hurricane is 45.31 and 44.75.
The difference between the mean is 0.56 as mentioned.
Standard deviation shows, how much of data is away from mean.
Standard deviation shows the variability of data.
Standard deviation of Red hawks and Hurricane is 8 and 4.
Red hawks is 8 further away from mean.
Hurricane is 4 further away from mean.
Hurricane is closer because they are consistent.

7 0

3 years ago

HELP PICS INCLUDED! WILL GIVE BRAINLIEST! SHOW WORK AND EXPLAIN

Naddik [55]

I assume you know about the dot product, and that for two vectors $\mathbf a$ and $\mathbf b$ , the angle between them $\theta$ satisfies

$\mathbf a\cdot\mathbf b=\|\mathbf a\|\|\mathbf b\|\cos\theta\iff\cos\theta=\dfrac{\mathbf a\cdot\mathbf b}{\|\mathbf a\|\|\mathbf b\|}$

Then the vectors are parallel if the angle between them is 0 or 180 degrees (0 or pi radians), which would make $\cos\theta=1$ or $\cos\theta=-1$ , respectively.

Part A)

$\vec v_1=\langle\sqrt3,1\rangle\implies\|\vec v_1\|=\sqrt{(\sqrt3)^2+1^2}=\sqrt4=2$

$\vec v_2=\langle-\sqrt3,-1\rangle=-\vec v_1\implies\|\vec v_2\|=\|\vec v_1\|=2$

$\vec v_1\cdot\vec v_2=(\sqrt3)(-\sqrt3)+(1)(-1)=-4$

Then the angle between $\vec v_1,\vec v_2$ is such that

$\cos\theta=\dfrac{-4}{(2)(2)}=-1\implies\theta=\pi\,\mathrm{rad}$

so these vectors are parallel ("antiparallel", more specifically, which means they are parallel but point in opposite directions).

Part B) involves the same computations:

$\vec u_1=\langle2,3\rangle\implies\|\vec u_1\|=\sqrt{2^2+3^2}=\sqrt{13}$

$\vec u_2$ has the same components but differing by sign and order, as $\vec u_1$ ; its magnitude remains the same, though:

$\vec u_2=\langle-3,-2\rangle\implies\|\vec u_2\|=\sqrt{(-3)^2+(-2)^2}=\sqrt{13}$

$\vec u_1\cdot\vec u_2=(2)(-3)+(3)(-2)=-12$

$\implies\cos\theta=\dfrac{-12}{(\sqrt{13})(\sqrt{13})}=-\dfrac{12}{13}\implies\theta=\cos^{-1}\left(-\dfrac{12}{13}\right)$

which is neither 0 nor pi, which means these vectors are not parallel.

4 0

4 years ago

Please help me!!!!!!

LiRa [457]

Answer:

y=-(3/4)x-3

Step-by-step explanation:

plz mark me as brainliest

6 0

3 years ago

The face of each stone on a walkway was shaped like a trapezoid shown below. 14 inches, 6 inches, 8 inches. What is the area of

marishachu [46]

Answer:

B. 66 square inches

Step-by-step explanation:

Area of a trapezoid = (a + b)/ 2 * h

Where,

a = base a = 14 inches

b = base b = 8 inches

h = height = 6 inches

Area of a trapezoid = (a + b)/ 2 * h

= (14 + 8) / 2 * 6

= 22/2 * 6

= 11 * 6

= 66 inches ²

Area of a trapezoid = 66 inches ²

The correct answer is

B. 66 square inches

8 0

3 years ago