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2 years ago

For the following right triangle, find the side length x. Round your answer to the nearest hundredth.

Mathematics

1 answer:

olga nikolaevna [1]2 years ago

5 0

The answer is 12.96

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Elimination method: ax+by=r, -bx+cy=s

Alex17521 [72]

$\left[\begin{array}{ccc}ax+by=r\\\\-bx+cy=s\end{array}\right]$

Isolate x for $ax+by=r$

$x= \frac{r-by}{a} ; a \neq 0$

Subsititute $x= \frac{r-by}{a}$

$-b \frac{r-by}{a} +cy=s$

Isolate r for : $-b \frac{r-by}{a}+cy=s$

$r=- \frac{as-acy-b^2y}{b} ; a \neq 0;b \neq 0$

For x : $\frac{r-by}{a}$

Subsititute r = $- \frac{as-acy-b^2y}{b}$

$x= -\frac{as-acy-b^2y}{b}/a$

$x = \frac{cy-s}{b}$

The solutions to the system of equations are:

$r= -\frac{as-acy-b^2y}{b}$ and <span> $x = \frac{cy-s}{b}$
</span>
hope this helps!

3 0

2 years ago

el teatro tiene 20 filas de asientos con 18 asientos en cada fila. Los boletos cuestan $5.00. El costo si se vende todos los asi

ziro4ka [17]

El costo sería $1,800

3 0

3 years ago

1/4 miles to a shoe store. Then you walk another 2/5 miles to a music store. How many miles have you walked in all?

zavuch27 [327]

Answer:

$\frac{13}{20}$

Step-by-step explanation:

$\frac{1}{4} + \frac{2}{5}$

First, we need to make the demoninators the same so we times 4 by 5 and whatever we do to the bottom, we do to the top, and 5 by 4.

$\frac{ 1 \times 5}{4 \times 5} + \frac{2 \times 4}{5 \times 4}$

$\frac{5}{20} + \frac{8}{20}$

$= \frac{13}{20}$

demoninator now doesn't change unless you're multiplying or dividing.

6 0

2 years ago

Given that line t is the perpendicular bisector of JK and GK=8.25 find GJ

Paraphin [41]

1. As you can see in the figure attached, the <span> line "t" is the perpendicular bisector of JK, and divides the triangle in two equal right triangles. This means that both triangles are congruent. Therefore, both have equal dimensions. Keeping this on mind, you have the followiig:

2. Both triangles are congruents, then:

GK=GJ

3. So if the lenght GK is 8.25, the length GJ has the same length:

GJ=8.25

4. Therefore, the answer is:

GJ=8.25</span>

5 0

3 years ago

Jina is mailing packages. Each small package costs her to send. Each large package costs her . How much will it cost her to send

Novosadov [1.4K]

You need to tell me how many large and small packages she’s sending and how much each costs

8 0

2 years ago