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VashaNatasha [74]

4 years ago

15

Need help please help

1 answer:

nadezda [96]4 years ago

7 0

Answer:

∆ ADB = ∆ ADC

Step-by-step explanation:

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Necesito ayuda con estas consignas

Makovka662 [10]

Yo no hablo espanol

Yo no ayudo tu. :(

4 0

3 years ago

The sum of three numbers is 84 the second number is 3 times the third . The first number is 6 less then the third . What are the

Kamila [148]

Answer:

A=12

B=54

C=18

Step-by-step explanation:

A=first

B=second

C=third

A+B+C=84

B=3C

A=C-6

C-6+3C+C=84

5C-6=84

5C=90

C=18

A=C-6

=(18)-6

=12

B=3C

=3(18)

=54

7 0

4 years ago

Write the formula for the parabola that has x- intercepts (3,0) and (8,0), and y- intercept (0,−2)

alexira [117]

Answer: $x^2-5x=-12(y+2)$

Step-by-step explanation:

Given

Parabola has x-intercept has $(3,0)$ and $(8,0)$

and Y-intercept as $(0,-2)$

Now the general equation of parabola is

$y=ax^2+bx+c\quad \ldots(i)$

Substitute $(0,-2)$ in $(i)$ we get

$-2=c$

Now substitute $(3,0)$ in equation $(i)$

$0=a(3)^2+3b-2\quad \ldots(ii)$

Now substitute $(8,0)$ in equation $(i)$

$0=a(8)^2+8b-2\quad \ldots(iii)$

Solving $(ii)$ and $(iii)$ we get

$a=\frac{-1}{12}\ \text{and}\ b=\frac{5}{12}$

therefore

$y=\frac{-x^2}{12}+\frac{5x}{12}-2$

$12y=-x^2+5x-24$

5 0

4 years ago

Decrease £313 by 62%

Helga [31]

Answer:

194.06

Step-by-step explanation:

313×0.62=194.06

5 0

4 years ago

1<br> Which system of linear equations represents the lines graphed below?

kaheart [24]

Answer:

B

Step-by-step explanation:

I took the test and got it right

7 0

3 years ago

Read 2 more answers