resuelve e indica las raices 2x ^2 - x - 3 - 5 = 0

Answer:

Step-by-step explanation:

We know

[tex]\\ \sf{:}\Rrightarrow tan\Theta=\dfrac{Perpendicular}{Base}[/tex]

Now

[tex]\\ \sf{:}\Rrightarrow tanE=\dfrac{FD}{DE}[/tex]

[tex]\\ \sf{:}\Rrightarrow tanE=\dfrac{55}{48}[/tex]

Answer:

The opposite of -3 5/8 is on the right (or opposite) side of zero on the number line as -3 5/8. The opposite of 4 2/9 is on the left (or opposite) side of zero on the number line as 4 2/9.

Step-by-step explanation:

hope this helps. . .<3

good luck!    UwU

Answer:

-3y=-24

Step-by-step explanation:-10 and 10 cancel, then go form there -8y +5y is -3y then add -14 and -10 you get -24 so your final answer is -3y=-24

Answer:   Since 6 is six units away towards right from 0, the absolute value of 6 is just 6.  HOPE THIS HELPS!!!!   :)

Answer:

6

Step-by-step explanation:

The absolute value of 6 is just 6 because the absolute value of a number is just the positive version of it even if it is already a positive.

Answer:

y=x+9/17

Step-by-step explanation:

easy question that's all :) have a great day

Answer:

x=-2,5

Step-by-step explanation:

2x-3=7

2x-3=-7

x=-2,5

Answer:

184960

Step-by-step explanation:

1445 x 128 = 184960

The slope of the line contains the given points. C(1, –7), D(5, 13) is 5 after using the slope formula.

The ratio that y increase as x increases is the slope of a line. The slope of a line reflects how steep it is, but how much y increases as x increases. Anywhere on the line, the slope stays unchanged (the same).

[tex]\rm m =\dfrac{y_2-y_1}{x_2-x_1}[/tex]

We have given two points:

C(1, –7) and D(5, 13)

The slope can be found using the slope formula:

[tex]\rm m =\dfrac{13+7}{5-1}[/tex]

m = 20/4

m = 5

Thus, the slope of the line contains the given points. C(1, –7), D(5, 13) is 5 after using the slope formula.

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Answer:

35%

Step-by-step explanation:

Based on the given conditions, formulate: 7 ÷ 20

Evaluate the equation/expression: 0.35

Multiply a number to both the numerator and the denominator: 0.35 × [tex]\frac{100}{100}[/tex]

Write as a single fraction: [tex]\frac{0.35*100}{100}[/tex]

Calculate the product or quotient: [tex]\frac{35}{100}[/tex]

Rewrite a fraction with denominator equals 100 to a percentage: 35%

Answer: 35%

Answer:

35%

Step-by-step explanation:

7÷20× 100= 35%

The total number of begonias where 20 so we divide 20 from 7 multipled by 100

Answer:

85 cm^2

Step-by-step explanation:

Answer:

C. x = 2

Step-by-step explanation:

2x + 1 = x + 3

subtract the x from both sides so

2x + 1 = x + 3

-x        -x

when we subtract the x we are left with x + 1 = 3

since we want x alone we have to subtract 1 from both sides so

x + 1 = 3

   -1    -1

3 - 1 = 2 so

x = 2

Answer:

-2y^-2

Step-by-step explanation:

https://www.symbolab.com/solver/simplify-calculator/simplify%20%5Cleft(8x%5E%7B2%7Dy%5E%7B-1%7D%5Cright)%5Cdiv%5Cleft(-4x%5E%7B2%7Dy%5Cright)?or=input

Evidence points to the Egyptians using gypsum mortar – also known as plaster of Paris – in constructing pyramids during the Pharaonic period. The first Egyptologist to identify this method was Alfred Lucas in 1926.

Answer:

Think the answer is 3a. Hope that helped.

Since 3a is common to both factors, hence the GCF of the expressions is 3a

This is the greatest value that can divide the given values without leaving remainder.

Given the following expressions 12a and 9a^2

Find the factors

12a = 3 * 4 * a

9a^2 = 3 * 3 * a * a

Since 3a is common to both factors, hence the GCF of the expressions is 3a

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Answer: 0.77777777777 Pies

Step-by-step explanation: divide 7 by 9

Answer:

2-7/ 5-3

Step-by-step explanation:

(3,7) (5,2)

2-7/ 5-3

Answer:

she well have $16

Step-by-step explanation:

so 12-8 =4 and she sells them for$ 4 each so 4X4 is 16 so $16

Answer:

They are not congruent based on the drawing. I don't know what they mean by "do they have to be congruent?", as they don't have to be congruent unless the teacher is asking for them to be congruent.

Step-by-step explanation:

Congruency in geometry is defined as identical in form, meaning that it must follow CPCTC (and can be proven in many different ways).

In the case of the given triangles they are not congruent, as DE and AD do not share congruency with BA and CB, respectively. At best, the two given triangles are similar triangles, as ΔADE is a 2x scale factor of ΔCBA.

I am not sure what the question about "do they have to be congruent" is for. Obviously they aren't congruent and so they don't have to be? There is nothing that states they have to be congruent. If you are aiming for congruency, lines AB & CB's measurements would simply have to match that of ED & AD, respectively.

~

Answer:

The relationship we found is that:

But this doesn't indicate the triangles are congruent. They have different side lengths which makes them similar but not congruent.

They can be congruent if corresponding sides are of same length.

The points where a graph crosses the x-and y- axis are called the Origin.

Answer: 40

Step-by-step explanation:

35% × x = 14

14×100÷35 = 40

Answer:

x = [tex]\frac{3b-2d}{a-5c}[/tex]

Step-by-step explanation:

ax + 2d = 5cx + 3b ( subtract 5cx from both sides )

ax - 5cx + 2d = 3b ( subtract 2d from both sides )

ax - 5cx = 3b - 2d ← factor out x from each term on the left side

x(a - 5c) = 3b - 2d ← divide both sides by (a - 5c)

x = [tex]\frac{3b-2d}{a-5c}[/tex]

Answer:

17

Step-by-step explanation:

[tex]8x - 4 + 9x + 4 + 4x + 17 = 374 \\\ 21x + 17 = 374 \\\ 21x = 374 - 17 \\\ 21x = 357 \\\ x = \frac{357}{21} \\\\\\ x = 17[/tex]

I hope I've helped you.

Answer:

f(3) = 16 and f(4) = 23

Step-by-step explanation:

Finding f(3) simply means we're finding the value of the function when x = 3, so we can plug 3 in for x in our function:

f(3) [tex]3^{2} +7[/tex]

[tex]3^2 = 9[/tex], so now we have:

f(3) = 9 + 7

9 + 7 = 16, so f(3) = 16.

Now we want to find the value of x that makes the function equal 23, so let's set our function equal to 23:

[tex]23 = x^2 + 7[/tex]

We want to get x by itself in order to find the value, so let's start by subtracting 7 from both sides:

23 - 7 = [tex]x^2[/tex]

23 - 7 = 16, so 16 = [tex]x^2[/tex]

Now, we can take the square root of both sides:

[tex]\sqrt{16} = \sqrt{x^2} \\\sqrt{16} = 4\\\sqrt{x^2} = x[/tex], so now we have:

4 = x

Answer:

Step-by-step explanation:

Find the slope using two points on the line:

Use slope formula:

Answer:

the number of students in each van : 14

Step-by-step explanation:

a = how many students fit into a van

b = how many students fit into a bus

School A: 4a+7b=448 (1)

School B: 9a+14b=910 (2)

(1) => b = (448-4a)/7

subs to (2) => 9a+ 2(448-4a) = 910

=> a = 14

=> b =56

Answer:

2000 workers

Step-by-step explanation:

60%= x

40% = 800 (the ones that arent men)

(800÷2= 400) which means..

40%÷2=400

20%=400 so

40% + 20% = 60%

800 + 400 = 1200

now that

60%=1200 workers add the 40percent of workers to the 60% of workers which is (40%=800)

=2000 workers in total

Answer:9c+63

Step-by-step explanation:

Answer:

1.34 is the answer so 1

Step-by-step explanation:

Answer:

1

Step-by-step explanation:

The exact answer is 1.34

because 3 is less than 5 you round down

therefore the answer is 1.

[tex] \: \: \: \: \: [/tex]

[tex]64449866502 \\ \\ in \: \: alternate \: \: form \: \\ \\ 6.4449866502 \times 1 {0}^{10} [/tex]

Step-by-step explanation:

[tex](320646102) \times (201)[/tex]

[tex] = 64449866502 \\ \\ in \: \: alternate \: \: form \: \: \\ \\ 6.4449866502 \times 1 {0}^{10} [/tex]

[tex] \: \: \: \: \: \: [/tex]

The product of the matrices is given below.

[tex]\left[\begin{array}{ccc}6\\18\\4\end{array}\right][/tex]

A matrix is a specific arrangement of items, particularly numbers. A matrix is a row-and-column mathematical structure. The  element in a matrix, such as M, refers to the i-th row and j-th column element.

here, we have,

The matrices are given below.

[tex]\left[\begin{array}{ccc}3&2&0\\6&4&6\\1&0&2\end{array}\right][/tex]  and [tex]\left[\begin{array}{ccc}2\\0\\1\end{array}\right][/tex]

now, we get,

The product of the matrices will be

[tex]\left[\begin{array}{ccc}3&2&0\\6&4&6\\1&0&2\end{array}\right][/tex]  × [tex]\left[\begin{array}{ccc}2\\0\\1\end{array}\right][/tex]

Thus, the product of the matrices is given below.

[tex]\left[\begin{array}{ccc}3&2&0\\6&4&6\\1&0&2\end{array}\right][/tex]  × [tex]\left[\begin{array}{ccc}2\\0\\1\end{array}\right][/tex] = [tex]\left[\begin{array}{ccc}6\\18\\4\end{array}\right][/tex]

Hence, The product of the matrices is given below.

[tex]\left[\begin{array}{ccc}6\\18\\4\end{array}\right][/tex]

More about the matrix link is given below.

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