2 years ago

Please find x and a

Mathematics

1 answer:

aev [14]2 years ago

8 0

Answer:

x = 36

a = 25

Step-by-step Explanation

By Pythagoras Theorem:

$x = \sqrt{ {39}^{2} - {15}^{2} } \\ \\ x = \sqrt{1,521 - 225} \\ \\ x = \sqrt{1,296} \\ \\ x = 36 \\ \\ a = \sqrt{ {20}^{2} + {15}^{2} } \\ \\ a = \sqrt{400 + 225} \\ \\ a = 25 \sqrt{625} \\ \\ a = 25$

You might be interested in

Please help me with this

Rainbow [258]

It would be C because that is the one that make the most sense

7 0

1 year ago

Which of the following statement is incorrect? .

Nuetrik [128]

Answer:

b) Commutative property is true for subtraction of Rational numbers

Step-by-step explanation:

Option B is incorrect.
Commutative property is not true for subtraction of Rational numbers .

5 0

2 years ago

Read 2 more answers

Rafael wants to earn at least $45 trimming trees. He charges $8 per hour and pays $3 in equipment fees. What are the possible nu

pshichka [43]

Answer:

6 $\leq$ r

Step-by-step explanation:

45 $\leq$ 8r-3

48 $\leq$ 8r

6 $\leq$ r

8 0

2 years ago

If the simple interest on $7,000 for 7 years is $2,940, then what is the interest rate?

ddd [48]

$~~~~~~ \textit{Simple Interest Earned} \\\\ I = Prt\qquad \begin{cases} I=\textit{interest earned}\dotfill & \$2940\\ P=\textit{original amount deposited}\dotfill & \$7000\\ r=rate\to r\%\to \frac{r}{100}\\ t=years\dotfill &7 \end{cases} \\\\\\ 2940=7000(\frac{r}{100})(7)\implies \cfrac{2940}{7000(7)}=\cfrac{r}{100}\implies \cfrac{3}{50}=\cfrac{r}{100} \\\\\\ 300=50r\implies \cfrac{300}{50}=r\implies \stackrel{\%}{6}=r$

4 0

2 years ago

Read 2 more answers

Find the 6th term of the arthemetic sequence 2x+3,-2x+10,-6x+17,..

sveticcg [70]

Answer:4h term: -10x+24, 5th term: -14x+31, 6th term: -18x+ 38

Step-by-step explanation:

8 0

2 years ago

Please find x and a​

Please find x and a