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3 years ago

Solve the equation. 9 - 19= 18 9=

Mathematics

1 answer:

marishachu [46]3 years ago

3 0

Answer:

If you put it in your calculator you should get the right answer

Step-by-step explanation:

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Solve by factoring.<br> X2-9x-52=0

pochemuha

Answer:

Step-by-step explanation:

x^2-9x-52=0 What 2 numbers when multiplied equal -52 and added equals -9? -13 and 4

(x-13)(+4)

3 0

3 years ago

Solve the system of linear equations, using the Gauss-Jordan elimination method. (If there is no solution, enter NO SOLUTION. If

jonny [76]

Answer:

Infinitely solution exists,

Required solution is, $(x_1,x_2,x_3)=(0, 4(1-t),t)$

Step-by-step explanation:

We have the given equations:

$x_1+2x_2+8x_3=8$

$x_1+x_2+4x_3=4$

Here, the augmented matrix is :

$\left[\begin{matrix}1&2&8&8\\1&1&4&4\end{matrix}\right]$

Now, find the echelon form of the augmented matrix.

$=\left[\begin{matrix}1&2&8&8\\0&-1&-4&-4\end{matrix}\right]^{R_1\rightarrow R_2-R_1}$

$=\left[\begin{matrix}1&0&0&0\\0&-1&-4&-4\end{matrix}\right]^{R_1\rightarrow R_1+2R_2}$

Therefore, $x_1=0$

$-x_2-4x_3=-4$

$\Rightarrow x_2=4(1-x_3)$

Let $x_3=t$ , then the required solution is

$(x_1,x_2,x_3)=(0, 4(1-t),t)$

5 0

3 years ago

Find the perimeter and area of the figure, rounding to the nearest tent. Use 3.14 for π 7ft 25 ft 4 ft

Lubov Fominskaja [6]

Answer:

89.12 ft

Explanation:

The perimeter of the figure is the sum of all the sides. So, we need to find the length of the quarter of the circles. This length can be calculated as:

$\frac{2\cdot\pi\cdot r}{4}=\frac{2\cdot3.14\cdot4ft}{4}=6.28\text{ ft}$

Where r is the radius of the circle.

Then, the perimeter can be calculated as:

Perimeter = 2(7 ft) + 2(25 ft) + 4(6.28 ft)

Perimeter = 14 ft + 50 ft + 25.12 ft

Perimeter = 89.12 ft

Because there are 2 segments of 7 ft, 2 of 25 ft, and 4 corners of 6.28 ft

Therefore, the answer is 89.12 ft

5 0

1 year ago

Is the relationship for Camille’s puppies weight in terms of linear or nonlinear

docker41 [41]

Answer:

linear

Step-by-step explanation:

Where is the picture for this problem???

8 0

3 years ago

Read 2 more answers

Guys please help me with question 1 , 2 and 3 pleaseeee

faust18 [17]

Answer: 10 points, please!

Step-by-step explanation:

1. for the medium you want to find the number thats in the middle. so you have to write out all the numbers in order. then you step by step go to the middle and theres your medium.

0, 2, 2, 2, 3, 3, 3, 3, 3, 3, 5, 5, 6, 6, 7, 11

2, 2, 2, 3, 3, 3, 3, 3, 3, 5, 5, 6, 6, 7

2, 2, 3, 3, 3, 3, 3, 3, 5, 5, 6, 6,
2, 3, 3, 3, 3, 3, 3, 5, 5, 6,

3, 3, 3, 3, 3, 3, 5, 5,

3, 3, 3, 3, 3, 5,

3, 3, 3, 3,
3, 3,

The medium is 3.

2. for the mean you add all the numbers up and then divide based on how many numbers there are.

0 + 2 + 2 + 2 + 3 + 3 + 3 + 3 + 3 + 3 + 5 + 5 + 6 + 6 + 7 + 11 / 16

64/16

the average or mean is 4 which tells us that the average number of kids per houshold is 4. and none of the housholds have 4 children. we know this because of the data in the line plot.

the typical houshold size is either 3 or 4. the medium is 3 and the average or mean is 4.

10 points please

4 0

2 years ago

Solve the equation. 9 - 19= 18 9​=

Solve the equation. 9 - 19= 18 9=