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3 years ago

11

Whoever answers these 2 right gets brainliest and 25 points!

1 answer:

Lana71 [14]3 years ago

3 0

The first one is B and the second one is C

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42-7=35 is an addend or equation

Virty [35]

42-7=35 is an equation

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2 years ago

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Find the equation of a parabola with a vertical axis and its vertex at the origin and passing through the point (-2, 3)

vredina [299]

a vertical axis, I assume it means a vertical axis of symmetry, thus it'd be a vertical parabola, like the one in the picture below.

$\bf ~~~~~~\textit{parabola vertex form} \\\\ \begin{array}{llll} y=a(x- h)^2+ k\qquad \qquad \leftarrow vertical\\\\ x=a(y- k)^2+ h \end{array} \qquad\qquad vertex~~(\stackrel{}{ h},\stackrel{}{ k}) \\\\[-0.35em] \rule{34em}{0.25pt}\\\\ \begin{cases} h=0\\ k=0 \end{cases}\implies y=a(x-0)^2+0 \\\\\\ \textit{we also know that } \begin{cases} x=-2\\ y=3 \end{cases}\implies 3=a(-2-0)^2+0\implies 3=4a \\\\\\ \cfrac{3}{4}=a~\hspace{10em}y=\cfrac{3}{4}(x-0)^2+0\implies \boxed{y=\cfrac{3}{4}x^2}$

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3 years ago

{System: I am having a bit of trouble calculating this. And I am reposting this sense I don’t think it’s fair to give only a lit

Darya [45]

Total volume of light-blue paint:

$\left(4+\dfrac38\right)+\left(6+\dfrac18\right)=10+\dfrac48=10+\dfrac12$

Divide by $\dfrac14$ to find how many containers he can divided this total into:

$\dfrac{10+\frac12}{\frac14}=4\left(10+\dfrac12\right)=40+\dfrac42=40+2=42$

so the answer is B.

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3 years ago

A certain drug is made from only two ingredients: compound a and compound

Sedaia [141]

In total there will be 688 milliliters of compound used 258 from compound B and 430 milliliters of compound A so 688 in total.

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If e^9xe^2xe^-8=e^x what is the value of x

Inessa [10]

Answer:ur daaddy

Step-by-step explanation:

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