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olga2289 [7]
3 years ago
11

Find the value of this triangle!

Mathematics
1 answer:
Naily [24]3 years ago
6 0

From what I understand, we need to find x, y, and z.

We can easily find x by knowing a triangle has 180°.

Add 72+86=158 and then subtract 180-158 which gets you 22.

Now we have x=22°.

To find y, we first must find z. We can find z using the vertical angles theorem. This means x and z and the same, so z=22°.

Now, we can now find y by adding 70 and 22 = 92.

Subtract 180-92=88°.

All values have been found!

x=22°

y=88°

z=22°

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Solve problem g(x) = -3x + 1
alina1380 [7]
If by solving you mean find the roots, all you have to do is plug 0 in for g(x)

0=-3x+1
-1=-3x
-1/-3=-3x/-3
1/3 = x

5 0
3 years ago
3a − 2a + 4 = 16 Solve for a.
Bad White [126]

Answer:

a=12

Step-by-step explanation:

3a-2a+4=16\\\\(3a-2a)+4=16\\\\(3-2)a+4=16\\\\1a+4=16\\\\a+4-4=16-4\\\\a=12

8 0
3 years ago
Read 2 more answers
Help me pweasee <br> Find the value of the function f(x) = x2 + 9x + 14, when x = -2.
kati45 [8]

Answer:

-8

Step-by-step explanation:

(-2)2+9(-2)+14

-4+-18+14

-22+14

=-8

Hope this helps

6 0
4 years ago
Read 2 more answers
(-2,0) and (3,4)<br><br> slope=1/3 and (2,4)<br><br> SOLVE EQUATIONS FOR THEM PLEASE
andrew11 [14]

Answer:  a)\quad y=\dfrac{4}{5}x+\dfrac{8}{5}               b)\quad y=\dfrac{1}{3}x+\dfrac{10}{3}                

<u>Step-by-step explanation:</u>

Use the Slope formula:      m=\dfrac{y_2-y_1}{x_2-x_1}

and the Point-Slope formula:   y - y₁ = m(x - x₁)

a) (-2, 0) and (3, 4)

 m=\dfrac{0-4}{-2-3}\quad =\dfrac{-4}{-5}\quad =\dfrac{4}{5}

Let (x₁, y₁) = (-2, 0)      

y - y₁ = m(x - x₁)

y-0=\dfrac{4}{5}\bigg(x-(-2)\bigg)\\\\\\y\quad =\dfrac{4}{5}\bigg(x+2\bigg)\\\\\\\large\boxed{y\quad =\dfrac{4}{5}x+\dfrac{8}{5}}

b) m = 1/3     (x₁, y₁) = (2, 4)    

y - y₁ = m(x - x₁)

y-4=\dfrac{1}{3}\bigg(x-2\bigg)\\\\\\y-4 =\dfrac{1}{3}x-\dfrac{2}{3}\\\\\\y\quad \ =\dfrac{1}{3}x-\dfrac{2}{3}+\dfrac{12}{3}\\\\\\\large\boxed{y\quad =\dfrac{1}{3}x+\dfrac{10}{3}}

7 0
4 years ago
The area of Sahara desert is 7 times the area of the Gobi Desert. If the sum of their areas is 4,000,000 square miles, find the
ryzh [129]
X=area of Sahara.
y=area of the Gobi Desert.
We suggest this system equations:
x+y=4000000
x=7y
solve by susbstitution method.
(7y)+y=4,000,000
8y=4,000,000
y=4,000,000 / 8=500,000

x=7y
x=7(500,000)=3,500,000

The area of Sahara=3,500,00 miles².
The area of the Gobi Desert=500,000 miles²

To check:
Te sum of their areas is : 3,500,000 miles²+500,000 miles²=4,000,000 miles²
Te area of sahara (3,500,000 miles²) is 7 times the area of the Gobi Desert (7*500,000 miles²=3,500,000 miles²).
4 0
3 years ago
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