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2 years ago

What are the domain restrictions of q^2+7q-8/q^2-3q-4

Mathematics

2 answers:

Readme [11.4K]2 years ago

8 0

Answer:

Step-by-step explanation:

maxonik [38]2 years ago

6 0

Answer:

I looked it up it is C x=-1 and x=4,Download "" from app store or play store, you can just take a picture and the answer will pop up

Step-by-step explanation:

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In △ ABC and △DEF, AC = DF, AB = DE and < A = Pls help dont scam me pls....

zysi [14]

Answer:

∠A = ∠D (**but very important Δ ABC has to be congruent to Δ DEF)

Step-by-step explanation:

It will help if you draw the triangles out and label the same sides. Then according to the side-angle-side (SAS) rule, ∠A should be equal to ∠D

5 0

2 years ago

How to do this question plz answer me

Sati [7]

Answer:

$d = \frac{4 - 3c}{c + 1}$

Step-by-step explanation:

To make d the subject of formula, we need to rearrange the equation such that we arrive at d= _____.

$c = \frac{4 - d}{d + 3}$

Remove the fraction by multiplying (d +3) on both sides:

$c(d + 3) = 4 - d$

Expand:

$cd + 3c = 4 - d$

Bring all the d terms to one side and move the others to the other side of the equation:

$cd + d = 4 - 3c$

Factorise d out:

$d(c + 1) = 4 - 3c$

Divide by (c +1) on both sides:

$d = \frac{4 - 3c}{c + 1}$

7 0

2 years ago

The box plots show the average wind speeds, in miles per hour, for two different islands.

lutik1710 [3]

*see attachement.

Answer:

Country A because it has a smaller interquartile range

Step-by-step explanation:

A smaller interquartile range connotes that the data in the distribution do not vary much, while a larger interquartile range would suggest the data vary much.

Therefore, the island that would have an average speed close to its median would be the island whose interquartile range is smaller.

Thus, Country A has a smaller interquartile range, so therefore, it would have a daily wind speed close to its median.

6 0

2 years ago

Read 2 more answers

Please Help!!!

kap26 [50]

If the notebooks cost 3.59 and pens cost 1.49, with x representing the notebooks and y representing the number of pens and an amount of $13, the inequality would be written as 3.59x+1.49y $\leq$ 13

8 0

2 years ago

Read 2 more answers

Find the mass of the triangular region with vertices (0, 0), (3, 0), and (0, 1), with density function ρ(x,y)=x2+y2.

ololo11 [35]

Since density is the ratio of mass to (in this case) area, we can find the mass of the triangular region $\mathcal T$ by computing the double integral of the density function over $\mathcal T$ :

$\mathrm{mass}=\displaystyle\iint_{\mathcal T}\rho(x,y)\,\mathrm dx\,\mathrm dy$

The boundary of $\mathcal T$ is determined by a set of lines in the $x,y$ plane. One way to describe the region $\mathcal T$ is by the set of points,

$\mathcal T=\left\{(x,y)\mid0\le x\le 3\,\land\,0\le y\le1-\dfrac x3\right\}$

So the mass is

$\mathrm{mass}=\displaystyle\int_{x=0}^{x=3}\int_{y=0}^{y=1-x/3}(x^2+y^2)\,\mathrm dy\,\mathrm dx$

$=\displaystyle\int_{x=0}^{x=3}\left(x^2y+\frac{y^3}3\right)\bigg|_{y=0}^{y=1-x/3}\,\mathrm dx$

$=\displaystyle\int_{x=0}^{x=3}\left(x^2\left(1-\frac x3\right)+\frac{\left(1-\frac x3\right)^3}3\right)\,\mathrm dx$

$=\displaystyle\frac1{81}\int_0^3(27-27x+90x^2-28x^3)\,\mathrm dx=\frac52$

6 0

2 years ago