I need help with geometry

Mathematics

1 answer:

VLD [36.1K]2 years ago

5 0

Answer:

180-71

=109

the last one

You might be interested in

How do I get to the end

hoa [83]

Answer:

Step-by-step explanation:

i don`t know sorry

5 0

3 years ago

You answer 12 emails in 15 minutes. How many emails can you answer in 2 hours?

Marysya12 [62]

Answer:

Step-by-step explanation:

you divide 60 min by 15 to get 4 then u multiply 12 × 4 =48 then multiply 48 × 2=96

8 0

3 years ago

Find the value of x. If necessary, round to the nearest tenth

andrew11 [14]

A = 1/2bh
40 = 1/2 x^2
x^2 = 80
x = 8.9

3 0

3 years ago

Read 2 more answers

If a number n is a multiple of two,then n is even.

Mashcka [7]

Answer:

yes any multiple of 2 is even

3 0

2 years ago

Use the given information to find the unknown value:y varies directly as the square of z. When x = 2, then y= 20. Find y when 2

Vladimir79 [104]

Answer

y = 45 when x = 3

Step-by-step explanation:

$\begin{gathered} \text{Given that y varies directly as the square of x} \\ \text{This implies that there is a positive relationship betwe}en\text{ y and the square of z} \\ \text{Mathematically, this can be expressed as} \\ y\text{ }\propto x^2 \\ To\text{ turn this expression into an equation, we n}eed\text{ to introduce a proportionality constant k} \\ y=kx^2 \\ \text{ According to the question, y = 20 and x = 2} \\ \text{From the above informaion we can find our k} \\ y=kx^2 \\ 20\text{ = k }\cdot2^2 \\ 20\text{ = k }\cdot\text{ 4} \\ \text{Divide both sides by 4} \\ \frac{20}{4}\text{ = }\frac{k\cdot\text{ 4}}{4} \\ k\text{ = 5} \\ \text{ Find y when }x\text{ = 3} \\ y=kx^2 \\ y\text{ = 5 }\cdot(3)^2 \\ y\text{ = 5 }\cdot\text{ 9} \\ y\text{ = 45} \end{gathered}$

8 0

1 year ago