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3 years ago

Please im begging for someones help

Mathematics

1 answer:

stiks02 [169]3 years ago

7 0

Answer:

27+5x

Step-by-step explanation:

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Y=x^2-4x+5<br><br> what is the vertex, domain, and range?

GarryVolchara [31]

Answer:

Hope this helps :) look at the picture because I dont know how to type that

Step-by-step explanation:

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2 years ago

Find the exact roots of x²-2x-10=4x

BARSIC [14]

Answer:

$x = 3 - \sqrt{19} \: \: or \: \: x = 3 + \sqrt{19}$

Step-by-step explanation:

The given equation is

${x}^{2} - 2x - 10 = 4x$

We group the linear terms to get:

${x}^{2} - 2x - 4x - 10 = 0$

${x}^{2} - 6x - 10 = 0$

We compare to

$a {x}^{2} + bx + c = 0$

This means

a=1, b=-6 and c=-10

We plug in the values into the quadratic formula:

$x = \frac{ - b \pm \sqrt{ {b}^{2} - 4ac} }{2a}$

This gives us

$x = \frac{ - -6 \pm \sqrt{ {( - 6)}^{2} - 4 \times 1 \times - 10 } }{2 \times 1}$

$x = \frac{ 6 \pm \sqrt{ 36 + 40 } }{2}$

$x = \frac{ 6 \pm \sqrt{76 } }{2}$

$x = \frac{ - 6 \pm 2\sqrt{19} }{2}$

$x = 3 \pm \sqrt{19}$

The solutions are

$x =3 + \sqrt{19}$

$x = 3 - \sqrt{19}$

7 0

3 years ago

How many pairs of sides touch each other in a rectangle of 4 squares with 2 rows

Slav-nsk [51]

There are 10 pairs of sides that touch each other

4 0

3 years ago

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6m + 15n- 12p/n for m = -3.5, n=4, and p=3

Alexus [3.1K]

Answer: B. 30

Step-by-step explanation:

First, you re-write the expression

6(-3.5) + 15(4) - 12(3/4)

Then multiply all the parts correctly.

-21 + 60 - 9

-21 + 60 = 39

-9

= 30

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3 years ago

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Thomas received a $50 gift card for an online store, and he wants to buy LED lights to decorate his bedroom. If one strand

olga nikolaevna [1]

Answer:

Thomas can buy 4 strands.

Step-by-step explanation:

We need to round $11.86 to the nearest dollar, which is $12.

Now we ask ourselves, "how many times does 12 go into 50 without going over?"

12 × 4 = 48

12 can go into 50 4 times.

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3 years ago

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