All categories

2 years ago

Find the value of x in the triangle shown below.

Mathematics

1 answer:

ra1l [238]2 years ago

3 0

Answer:

sqrt(65) =x

Step-by-step explanation:

This is a right triangle so we can use the Pythagorean theorem

a^2 +b^2 = c^2 where a and b are the legs and c is the hypotenuse

4^2 + 7^2 = x^2

16+49 = x^2

65 = x^2

Take the square root of each side

sqrt(65) =sqrt(x^2)

sqrt(65) =x

You might be interested in

I need someone to explain what I did wrong

egoroff_w [7]

Answer:

g(f(4)) = 9

Step-by-step explanation:

Fill in gf(x) for where x is in g(x): (x-7)²

Then, fill in 4 for where x is: (4-7)²

Square it: (-3)²

4 0

2 years ago

Can someone please help me like I really need help this problem has to have more than one step to be solved I really need help a

kumpel [21]

Answer:

85°

Step-by-step explanation:

Please follow along with these directions on the attached picture so that this makes sense. I have labeled the picture with the variables I used and the angles I figured out.

Let's start in the top left corner. Remember: triangles always have 180°, and straight lines always have 180°.

180-115 = 65

65+85+x = 180, so x = 30

30+90+y = 180, so y = 60

180-155 = 25

25+60+z = 180, so z = 95

180-95 = 85°

8 0

2 years ago

The sum of a number times 7 and 21 is at least 29. Write as an inequality

PtichkaEL [24]

The inequality is 7x + 21 $\leq 29$

Step-by-step explanation:

DATA:

Let the number be x

Number times 7 = 7*x

Sum of a number times 7 and 21 = 7x + 21

Is at least 29

INEQUALITY:

7x + 21 $\leq 29$

SOLVE:

7x $\leq 29-21$

7x $\leq 8$

x $\leq \frac{8}{7}$

Therefore, the inequality is 7x + 21 $\leq 29$

Keyword: Inequality

Learn more about inequality at

#LearnwithBrainly

6 0

2 years ago

What is another way to write 56

SashulF [63]

Answer:

$\frac{112}{2}$

Step-by-step explanation:

Another way to express 56 is $\frac{112}{2}$ because they are equal values.

3 0

2 years ago

Read 2 more answers

Find the perimeter of this shape please help

Vesna [10]

Answer:

It’s 60 because one cube equal 12

And like there is 5 cubes it will be 12x5

Which equals 60

Step-by-step explanation:

5 0

2 years ago

Read 2 more answers