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3 years ago

I picked the blue one, was I correct?

Mathematics

1 answer:

pav-90 [236]3 years ago

7 0

Answer:

Yea i think it is the first one

Step-by-step explanation:

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1 1/2 x -2= <br> PROCESS !!!!

trasher [3.6K]

11/2x=2
2/11(11/2)x=2(2/11)
x=4/11

7 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

Which solid figure is made of only triangular faces?

kakasveta [241]

Answer:

Triangular Pyramid

Step-by-step explanation:

3 0

2 years ago

Two students form a group of eight boys and 12 girls are sent to represent the school in a parade. If the two students are chose

ch4aika [34]

Your best option would be 33/95 hope this helps

6 0

2 years ago

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If equation is x + y = 3 and x - y = 7 then the value of x will be?

KiRa [710]

Answer:

x = 5

Step-by-step explanation:

Add the equations

x + y = 3

x - y = 7

––––––––

2x = 10

Divide both sides by2

x = 5

Note: for the equations in the question,

none of the given answers are correct.

4 0

2 years ago

Read 2 more answers