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2 years ago

PQRS is a quadilateral in which <PQR=74°;

Mathematics

1 answer:

8090 [49]2 years ago

8 0

Hey bro not the best but remember too use PEMDAS

You might be interested in

What is the multiplier for 5/7=30/42 please help

horsena [70]

Answer:

The multiplier is 1

specifically:

$\frac{6}{6}$

Step-by-step explanation:

Let the multiplier be k

Then,

$\frac{5}{7} \times k = \frac{30}{42}$

We multiply both sides by 7/5

$\frac{7}{5} \times \frac{5}{7} k = \frac{30}{42} \times \frac{7}{5}$

$k = \frac{6}{6}$

We can simplify this further to get 1.

This implies that:

$\frac{5}{7} \times \frac{6}{6} = \frac{30}{42}$

Hence the multiplier is 1.

8 0

3 years ago

<img src="https://tex.z-dn.net/?f=4x%20-%206%20%3D%20%20-%202x%20-%2016%20-%202" id="TexFormula1" title="4x - 6 = - 2x - 16 - 2

cestrela7 [59]

This is the answer hope it helps

3 0

4 years ago

Use cubic regression to find a function that fits the following points.

olasank [31]

Answer:

The cubic regression that fits the points $(x,y) =(-2,-16)$ , $(x,y) = (1,5)$ , $(x,y) = (3, 59)$ and $(x,y) =(6,440)$ is $y =2\cdot x^{3}+x+2$ .

Step-by-step explanation:

A cubic polynomial is a polynomial that has the following form:

$y = a\cdot x^{3}+b\cdot x^{2}+c\cdot x + d$ (1)

Where:

$x$ - Independent variable, dimensionless.

$y$ - Dependent variable, dimensionless.

$a$ , $b$ , $c$ , $d$ - Coefficients, dimensionless.

We construct the following system of equations to determine the coefficients of the cubic regression:

$(x,y) =(-2,-16)$

$-8\cdot a +4\cdot b -2\cdot c + d = -16$ (1)

$(x,y) = (1,5)$

$a+b+c+d= 5$ (2)

$(x,y) = (3, 59)$

$27\cdot a + 9\cdot b + 3\cdot c + d = 59$ (3)

$(x,y) =(6,440)$

$216\cdot a + 36\cdot b + 6\cdot c + d = 440$ (4)

The solution of the system of linear equations is:

$a = 2$ , $b = 0$ , $c = 1$ , $d = 2$

The cubic regression that fits the points $(x,y) =(-2,-16)$ , $(x,y) = (1,5)$ , $(x,y) = (3, 59)$ and $(x,y) =(6,440)$ is $y =2\cdot x^{3}+x+2$ .

7 0

3 years ago

Solve kx + 7 = 4 for x.

svlad2 [7]

Answer: x=-3/k

Step-by-step explanation:

kx + 7 = 4

kx=4−7

kx=−3

x=-3/k

Hope this helps, now you know the answer and how to do it. HAVE A BLESSED AND WONDERFUL DAY! As well as a great Superbowl Weekend! :-)

- Cutiepatutie ☺❀❤

9 0

3 years ago

Maria needs to reach a window that is eight feet above the ground. When she placed a ladder so that it reached the bottom of the

mr_godi [17]

Answer:

10 feet

Step-by-step explanation:

Given that the distance to be reached is 8 feet above ground and she she placed a ladder so that it reached the bottom of the window, the base of the ladder was 6 feet from the house, the length of the ladder considered with the other lengths forms a right angled triangle.

The length of the ladder represents the hypotenuse side hence using pythagoras theorem

F^2 = 8^2 + 6^2

where F is the length of the ladder in feet

F^2 = 64 + 36

= 100

find the root of both sides

F = 10 feet

The ladder is 10 feet long

5 0

3 years ago