All categories

2 years ago

Find the value of x.

Mathematics

1 answer:

Allisa [31]2 years ago

5 0

A straight line is 180°, so you can do:

109 + ? = 180 (? is the top angle of the triangle)

? = 71°

Because the triangle is an isosceles triangle, the other angle is 71° too.

71 + 71 + ? = 180

? = 38

You subtract 38 with 90 to find the other angle.

90 - 38 = 52°

To find ∠2 you subtract 52 with 180.

180 - 52 = 128

∠2 = 128

128 = 11x + 18

110 = 11x

10 = x

You might be interested in

Multiply the polynomial <br><br> (4d-3)(-2d+1)

Nutka1998 [239]

If this an it my bad Gee

8 0

2 years ago

If you bent length 44 cm is bent into a circle find the radius of the circle?If the same wire is bent into the shape of a square

Tju [1.3M]

Answer:

r = 7 cm; l = 11cm

The circle encloses more area than the square

Step-by-step explanation:

(a) Radius of circle

The formula for the circumference of a circle is

A = 2πr

r = A/(2π)

Data:

C = 44 in

Calculation:

r = 44/(2 × 22/7)

= 44/2 × 7/22

= 2/2 × 7

= 7 in

(b) Side of square

P = 4l

l = P/4

= 44/4

= 11 in

(c) Areas

(i) Circle

A = πr²

= 22/7 × 7²

= 22/7 × 49

= 22 × 7

= 154 cm²

(ii) Square

A = l²

= 11²

= 121 cm²

The circle encloses more area than the square.

5 0

3 years ago

The number of kilograms of water in a human body varies directly as the mass of the body. A 72 kg person contains 48 kg of water

Tanzania [10]

Step-by-step explanation:

N=km

72=k×48

72=48k

k=72/48

k=1.5

N=1.5m

N=1.5×144

N=216

3 0

2 years ago

A grid shows the positions of a subway stop and your house. The subway stop is located at (7, -6) and your house is located at (

Yuri [45]

So the distance between subway stop and house is 19 units

Step-by-step explanation:

The distance formula will be used to calculate the distance between home and subway.

$d=\sqrt{(x_2-x_1)^2+(y_2-y_1)^2}$

Here (x1,y1) are the coordinates of first point

and

(x2,y2) are the coordinates of second point

Given

(x1,y1) = (7, -6)

(x2,y2) = (-9,5)

Putting the values in the formula

$d=\sqrt{(-9-7)^2+(5-(-6))^2} \\=\sqrt{(-16)^2+(5+6)^2} \\=\sqrt{256+(11)^2}\\=\sqrt{256+121}\\=\sqrt{377}\\=19.41\ units$

Rounding off to nearest unit gives us 19.

So the distance between subway stop and house is 19 units

Keywords: Distance, distance formula

Learn more about distance at:

#LearnwithBrainly

6 0

2 years ago

What is the value of x?

grandymaker [24]

i got 5.14cm i don´t know how much you are supposed to round though

36/42= 0.857142857 x 6=5.142857143

6 0

3 years ago