All categories

3 years ago

What’s the value of x?

Mathematics

2 answers:

kodGreya [7K]3 years ago

6 0

Answer:

x = 29.1m

Step-by-step explanation:

X= 71 x =

Y = y = 28.2 m

Z = z = 20.9 m

$x^{2} = y^{2} + z^{2} - 2yz cos x\\(28.2 )^{2} + (20.9)^{2} - 2(28.2 )(20.9) cos (71)\\795.24 + 436.81 - 1178.76cos(71)\\1232.05 - 1178.76 cos (71)\\{1232.05-383.767}\\\\\sqrt{x^{2} } = \sqrt{1232.05 - 383.767}\\ x = 29.1$

faust18 [17]3 years ago

5 0

Answer:

Step-by-step explanation:

You might be interested in

Guests at a pizza party are seated at three tables. The small table has 5 seats and 2 pizzas. The medium table has 7 seats and 3

bagirrra123 [75]

Answer:

the 5 seated table with the 2 pizzas got more each.

Step-by-step explanation:

$\frac{5}{2} = 2\frac{1}{y2}$ pieces each

$\frac{7}{3} = 2\frac{1}{3}$ pieces each

$\frac{12}{5} = 2\frac{2}{5}$ pieces each

Now change the fractions s that they all have a common denominator.

$2\frac{1}{2} = 2\frac{15}{30}$

$2\frac{1}{3} = 2\frac{10}{30}$

$2\frac{2}{5} = 2\frac{15}{30}$

Thus meaning that the 5 seated table with the 2 pizzas got more each.

6 0

3 years ago

A line passes through (-1, 7) and (2, 10).

marysya [2.9K]

Answer:

Y=x+8

Step-by-step explanation:

To find the gradient of the line u have to subtract the y intercepts and the x intercepts

10-7/2--1=3/3=1

Y-7/x--1=1

Y-7=x+1

Y=x+1+7

Y=x+8

4 0

3 years ago

Answer these questions please I'm really desperate. please im going to fail if I dont get this right

Drupady [299]

Answer-

$g(x)=-3x$

Solution-

First of all we have to get the value of f, as two point (0, -1) and (1, 2), we can get the equation by applying two point formula of straight line.

$\Rightarrow \dfrac{y-y_1}{y_2-y_1}=\dfrac{x-x_1}{x_2-x_1}$

$\Rightarrow \dfrac{y+1}{2+1}=\dfrac{x-0}{1-0}$

$\Rightarrow \dfrac{y+1}{3}=\dfrac{x}{1}$

$\Rightarrow \dfrac{y+1}{3}=x$

$\Rightarrow {y+1}=3x$

$\Rightarrow y=3x-1$

$\Rightarrow f(x)=3x-1$

Translating any point with coordinate as (x,y) 1 unit down, becomes (x, y-1)

So the new function will be,

$\Rightarrow (y-1)=3x-1$

$\Rightarrow y=3x$

Reflecting any point with coordinate as (x,y) over x axis, becomes (x, -y)

So the new function will be,

$\Rightarrow -y=3x$

$\Rightarrow y=-3x$

$\Rightarrow g(x)=-3x$

3 0

3 years ago

Write 72,658 in expanded form using exponents to write powers of 10.

marin [14]

ayo how do answer these

3 0

2 years ago

Read 2 more answers

It a math study guide plz help me

lord [1]

the answer is 12.57

Step-by-step explanation:

The formula to find circumference is 2×pi×r. Two is the radius. So when you plug it into the formula you get 12.57.

8 0

3 years ago