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3 years ago

(5, 3) and (6, r) m = -1

Mathematics

1 answer:

Rzqust [24]3 years ago

6 0

Answer:

r = 2

Step-by-step explanation:

(2-3)/(6-5)

= -1/1

= -1

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The temperature, in degrees fahrenheit (°

vova2212 [387]

The temperature decreased by 5 degrees per hour, as -25 / 5 is -5.

5 0

3 years ago

Which system is equivalent to

sammy [17]

Answer:

D) 6x^2 - 8y^2 = 50

-6x^2 - 2y^2 = 11

Step-by-step explanation:

We are given the following two expressions:

$3x^2-4y^2=25$

and

$-6x^2-2y^2=11$

Now if we look at the option D) $6x^2 - 8y^2 = 50
$ and $-6x^2 - 2y^2 = 11$ , we can observe that the earlier part in the given expression is just a simplification of 6x^2 - 8y^2 = 50.

$6x^2 - 8y^2 = 50\\\\2(3x^2-4y^2) = 50\\\\3x^2-4y^2 = \frac{50}{2} \\\\3x^2-4y^2=25$

and the later part $-6x^2 - 2y^2 = 11$ is already the same.

Therefore, the correct answer option is D) 6x^2 - 8y^2 = 50

-6x^2 - 2y^2 = 11.

6 0

3 years ago

Read 2 more answers

Find the value of x in the triangle shown below.

kobusy [5.1K]

Answer:

u did a lot of this budy a lot of these

Step-by-step explanation:

8 0

2 years ago

Mai's mother was 28 when Mai was born. Mai is now 12 years old. In how many years will Mai's mother be twice Mai's Age

noname [10]

Answer:

Step-by-step explanation:

Let x = the number of years

In x years, Mai's mother's age will be: 28 + x

and Mai's age will be: 12 + x

Then, 28 + x = 2(12 + x)

Distribute the 2 28 + x = 24 + 2x

Subtract 24 from each side 4 + x = 2x

Subtract x from each side x = 4

In four years, Mai's mother will be twice Mai's age.

Check:

28 + 4 = 2(12 + 4)

32 = 2 × 16

32 = 32

6 0

3 years ago

Solve 2x^2 + x - 4 = 0 X2 +

damaskus [11]

Answer:

$\large \boxed{\sf \ \ x = -\dfrac{\sqrt{33}+1}{4} \ \ or \ \ x = \dfrac{\sqrt{33}-1}{4} \ \ }$

Step-by-step explanation:

Hello, please find below my work.

$2x^2+x-4=0\\\\\text{*** divide by 2 both sides ***}\\\\x^2+\dfrac{1}{2}x-2=0\\\\\text{*** complete the square ***}\\\\x^2+\dfrac{1}{2}x-2=(x+\dfrac{1}{4})^2-\dfrac{1^2}{4^2}-2=0\\\\\text{*** simplify ***}\\\\(x+\dfrac{1}{4})^2-\dfrac{1+16*2}{16}=(x+\dfrac{1}{4})^2-\dfrac{33}{16}=0$

$\text{*** add } \dfrac{33}{16} \text{ to both sides ***}\\\\(x+\dfrac{1}{4})^2=\dfrac{33}{16}\\\\\text{**** take the root ***}\\\\x+\dfrac{1}{4}=\pm \dfrac{\sqrt{33}}{4}\\\\\text{*** subtract } \dfrac{1}{4} \text{ from both sides ***}\\\\x = -\dfrac{1}{4} -\dfrac{\sqrt{33}}{4} \ \ or \ \ x = -\dfrac{1}{4} +\dfrac{\sqrt{33}}{4}$

Hope this helps.

Do not hesitate if you need further explanation.

Thank you

4 0

3 years ago