Someone help with this please :)

9514 1404 393

Answer:

  (-2, 5, 7)

Step-by-step explanation:

The problem statement lets us write three equations for the three numbers x, y, and z.

  x + y + z = 10

  -x + 2y = 12

  x - y + 2z = 7

__

Adding the second equation to each of the other two gives ...

  3y +z = 22

  y +2z = 19

Subtracting the second of these from double the first gives ...

  2(3y +z) -(y +2z) = 2(22) -(17)

  6y +2z -y -2z = 44 -19

  5y = 25

  y = 5

  z = 22 -3(5) = 7 . . . . . . from 3y+z=22

  x = 10 -5 -7 = -2 . . . . . .from x+y+z=10

The numbers are (x, y, z) = (-2, 5, 7).

Answer:

first option is correct

Step-by-step explanation:

3x+12+x=180 degree (being linear pair)

4x+12=180

4x=180-12

x=168/4

x=42

Answer:

(a) -12

(b) 37

(c) -840

Step-by-step explanation:

We simply have to plug in the values for each expression.

2 + -3(3) - 5 = 2 + -9 - 5 = -7 - 5 = -12

5(2) - 4(-3) + 3(5) = 10 - -12 + 15 = 10 + 12 + 15 = 22 + 15 = 37

7(2^3)(-3)(5) = 7(8)(-15) = 56(-15) = -840

Answer:

55

Step-by-step explanation:

since angle 35 and the arrow are parallel they are the same.

Answer:

Step-by-step explanation:

radius(r)=diameter/2

=10.4/2

=5.2 cm

circumference of a circle =2πr

=2*3.14*5.2

=32.656

=32.7

Answer:

ok so lets make a list of what days each sister will make sandwiches

Emily:4,8,12,16,20

Sister:8,16,24,32,40

from looking at this we know that they will both make sandwiches on the 8th day

Hope This Helps!!!

Answer:

B

Step-by-step explanation:

Hope it helps and if you need explanation let it in the comments

Answer:

B

Step-by-step explanation:

Answer:

6 hours.

Step-by-step explanation:

Here's my work.

Chang only wanted to spend $44, and the boat costs $8/hr. So, the variable would only be 8t, and you would put 44 on the other side.

Then, you'd put -4 on the side with 8t, because you can take off $4.

So, the setup would be;

44 = 8t - 4.

Answer:

Is that the letter (x) or Is that times?

If it is times; then the difference is:

Option "C" -12x2-x-7

Step-by-step explanation:

why, because it is not solvable

Answer:

the person above me is wrong,

Step-by-step explanation:

its

Simplify the expression.

12x2 - 25x + 13

Answer:

45

Step-by-step explanation:

an octagon has 8 sides

360/8 =45

CONNECTION

X = exterior angle of the octagon

Answer:

58

Step-by-step explanation:

a = 27, b = -10 and c = 40

= a - (6 - c) + (a - b) - C

= 27 - (6 - 40) + (27 - (-10)) - 40

= 27 - (-34) + (37) - 40

= 27 + 34 + 37 - 40

= 58

[tex]\huge\textsf{Hey there!}[/tex]

[tex]\large\textsf{a - (6 - c) + (a - b) - c}[/tex]

[tex]\large\textsf{= 27 - (6 - 40) + (27 - (-10)) - 40}[/tex]

[tex]\large\textsf{6 - 40 = \bf -34}[/tex]

[tex]\large\textsf{= 27 - (-34) + (27 - (-10)) - 40}[/tex]

[tex]\large\textsf{= 27 + 34 + 27 + 10 - 40}[/tex]

[tex]\large\textsf{27 + 34 = \bf 61}[/tex]

[tex]\large\textsf{= 61 + 27 + 10 - 40}[/tex]

[tex]\large\textsf{61 + 27 = \bf 88}[/tex]

[tex]\large\textsf{88 + 10 - 40}[/tex]

[tex]\large\textsf{88 + 10 = \bf 98}[/tex]

[tex]\large\textsf{98 - 40}[/tex]

[tex]\large\textsf{= \bf 58}[/tex]

[tex]\boxed{\boxed{\large\textsf{Answer: \huge \bf 58}}}\huge\checkmark[/tex]

[tex]\large\textsf{Good luck on your assignment and enjoy your day!}[/tex]

~[tex]\frak{Amphitrite1040:)}[/tex]

Answer:

-11xy

Step-by-step explanation:

-14xy -(-3xy)

multiply the bract first - sign * minus sign is plus sign

-14xy+3xy

since they are like terms u can subtract them.u should subtract them because minus and plus means subtract and we should put minus sign in front of the answer because 14 is the highest number and it's sign is negative .

-11xy

Answer:

learns feel safe and healthy maybe other people when they see the uniform they know what school that uniform is

hope is the answer your where looking for.

Answer:

6.3

Step-by-step explanation:

[tex]6^{2} + 2^{2} = x^{2}[/tex]

40 = [tex]x^{2}[/tex]

[tex]\sqrt{40} = \sqrt{x^{2} }[/tex]

x = 6.3

Answer:

6.3

Step-by-step explanation:

Pythagoras' Theorem (or Pythagorean Theorem) states a²+b²=c², where c is the hypotenuse.

We can use this equation and swap a and b for 6 and 2. This gives 6²+2²=c², which can be expanded to 36+4=c², and further c²=40.

To work out c, we need to square root both sides, leaving c=6.3245553203367586639977870888654, which rounded to 1 decimal place (nearest tenth) is 6.3.

**This content involves Pythagoras' Theorem or The Pythagorean Theorem, which you may wish to revise. I'm always happy to help!

Answer:

0 and 1

Step-by-step explanation:

if you look at the graph the X valuesare 0,1

Answer:

x = 0,  x = 1

Step-by-step explanation:

Answer:

27.3 dollars

Step-by-step explanation:

Answer:

14

Step-by-step explanation:

the radius is always half the diameter.

but i could be wrong ,beacause im not sure why they gave you the height.

Answer:

Radius is 14 cm

Step-by-step explanation:

To find the radius, you divide the diametre by 2

28 ÷ 2 = 14

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Have a great summer :)

71000 is in the standard form of 7.1 x 10^-3 .

Step-by-step explanation:

I wish if I could explain you with steps but this is the question I've never done with steps. I always give direct answers from those questions !!

Step-by-step explanation:

A. D(t) = -25t + 160

this is the correct answer because if you substitute 3 you get 85

Answer:

B

Step-by-step explanation:

The reference angle and the given angle are the same angle.

Add 360° to the given angle , so

reference angle = - 289° + 360° = 71° → B

Answer:

Rotation

Step-by-step explanation:

It's kind of in the statement, but because the triangle is being rotated, that transformation is called a rotation.

Respuesta:

Esteban actuó de forma más inteligente

Explicación paso a paso:

De la narración dada arriba, podemos concluir que la decisión de Esteban de pagar siempre la tarifa de su boleto es un movimiento muy inteligente. Esto se debe a que al comparar la tarifa del boleto y el monto de la multa para aquellos que no pagan y la probabilidad de que una persona sea atrapada, se podría concluir que las personas que no paguen terminarán pagando más a largo plazo;

Tarifa de entrada = $ 0,68

Tarifa de multa = $ 50 con un 15% de probabilidad de ser atrapado; tarifa esperada = (0.15 * 50) + (0.85 * 0) = $ 7.5

Answer:

i would say that the box plot will look somewhat in the middle between 18 and 36 with 36 being the largest and 18 as the smallest

the data will also wont have a major difference in them

hope this helps<3

The mistake is that it is 1/16 not 16. The person probably did the reciprocal or incorrectly used the fraction

Answer:

The exponent for the answer should be -2. Therefore, the answer will be 4⁻² or 1/16.

Step-by-step explanation:

When dividing fractions, you subtract the exponents as long as they have the same base.

Since the exponents both have the base of 4, subtract 9 - 11.

9 - 11 = -2

The exponent would be -2 and the answer would be 4⁻².

When an exponent is negative, you take the inverse of the base raised to the positive exponent.

Since 4² = 16 or 16/1, 4⁻² would be 1/16.

The answer would be 4⁻² or 1/16.

Hope that helps.

Answer:

A. P = 29.7 m

Step-by-step explanation:

6² + 8² = y²

36 + 64 = y²

y² = 100

√y² = √100

y = 10

10 ÷ 2 = 5

5 × 3.14 × 2

31.4

31.4 ÷ 2 = 15.7

15.7 + 6 + 8 = 29.7

Answer:

12/5

Step-by-step explanation:

The total number of students divided by the number of students who prefer dogs.

Mathematically:

48/20

=12/5

Therefore, that's the probability

Given:

The equation is:

[tex]efg-h=i[/tex]

To find:

The value of f.

Solution:

We have,

[tex]efg-h=i[/tex]

We need to isolate f to find the value of f.

Adding h on both sides, we get

[tex]efg-h+h=i+h[/tex]

[tex]efg=i+h[/tex]

Dividing both sides by [tex]eg[/tex], we get

[tex]\dfrac{efg}{eg}=\dfrac{i+h}{eg}[/tex]

[tex]f=\dfrac{i+h}{eg}[/tex]

Therefore, the value of f is [tex]f=\dfrac{i+h}{eg}[/tex].