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Dmitry_Shevchenko [17]
2 years ago
12

On number 19 this needs to be shown full work I don’t know where to start can someone help me now ASAP!!!

Mathematics
1 answer:
DENIUS [597]2 years ago
7 0

Answer:

1

sorry if I'm wrong, I'm in the 7th grade lol, did my best :) hope I sortof helped

Step-by-step explanation:

5-2=3

square root of 3 with 3 is 1

5 - 2 = 1 \\ 3 \sqrt{3 = 1}

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Please solve as fast as possible...<br>No spams please......​
lisabon 2012 [21]

Answer:

In ∆ABD and ∆ACD

<BAD =<CAD ( each are half of <A )

<D=<D ( each equal to 90°)

AD = AD ( common)

So ∆ ABD is congruent to ∆ ACD.

Then AB =AC (by C.P.C.T)

Hence,∆ABC is an iso - sceles triangle.

8 0
3 years ago
-43 - 4r = 3(1 - 9r)
kap26 [50]

Answer

r = 2

Step-by-step explanation:

6 0
3 years ago
HELP PLEASE!!!!!!!!!!!!
Bogdan [553]

Answer:

See the explanation.

Step-by-step explanation:

We are given the function f(x) = x² + 2x - 5

Zeros :

If f(x) = 0 i.e. x² + 2x - 5 = 0

The left hand side can not be factorized. Hence, use Sridhar Acharya formula and  

x= \frac{-2+\sqrt{2^{2}-4\times(-5)\times1 } }{2} and  

x= \frac{-2-\sqrt{2^{2}-4\times(-5)\times1 } }{2}

⇒ x = -3.45 and 1.45

Y- intercept :

Putting x = 0, we get, f(x) = - 5, Hence, y-intercept is -5.

Maximum point :

Not defined

Minimum point:  

The equation can be expressed as (x + 1)² = (y + 5)

This is an equation of parabola having the vertex at (-1,-5) and axis parallel to + y-axis

Therefore, the minimum point is (-1,-5)

Domain :  

x can be any real number

Range:  

f(x) ≥ - 6

Interval of increase:

Since this is a parabola having the vertex at (-1,-5) and axis parallel to + y-axis.

Therefore, interval of increase is +∞ > x > -1

Interval of decrease:

-∞ < x < -1

End behavior :  

f(x) = x^{2} +2x-5 =x^{2}  (1+\frac{2}{x} -\frac{5}{x^{2} } )

So, as x tends to +∞ , then f(x) tends to +∞

And as x tends to -∞, then f(x) tends to +∞. (Answer)

7 0
3 years ago
URGENT! WILL MARK BRANLIEST
skelet666 [1.2K]

Answer:

B. Ractangle

Step-by-step explanation:

6 0
2 years ago
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What ordered pair represents the number of jump ropes made per hour
V125BC [204]

where is the rest of the question?

is that it?

7 0
3 years ago
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