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Semenov [28]
2 years ago
8

Help me please and thank you , 7th grade math

Mathematics
1 answer:
Oxana [17]2 years ago
5 0

Step-by-step explanation:

1. we know

area = πr²

a/q

22/7 × (50)²

22/7 × 2500

55000/7

7857.14

therefore, option c is correct

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7 d^2 +10 when d = 3
user100 [1]

Answer:

d = 3/7 = 0.429

d = 1

Step-by-step explanation:

5 0
2 years ago
Read 2 more answers
What is the solution to the equation below? Round your answer to two decimal places.
vodka [1.7K]

Answer:

x = 0.5

Step-by-step explanation:

2(2x-1)=3

2(2x)+1=3

        -1  -1

2(2x)=2        2x2=4

4x=2

4÷4 Cancels out the 4 in X

2÷4=0.5

Therefore

x = 0.5

4 0
3 years ago
Please help me solve the screenshot below.
Harrizon [31]

Answer:

The arrangement of the given equation in the slope - intercept form are

  1. y=-x+4
  2. y=2x-5

Step-by-step explanation:

Given:

x + y = 4 and

y - 2x = -5

Slope - intercept form :

y=mx+c

Where,

m is the slope of the line.

c is the y-intercept.

When two points are given say ( x1 , y1 )  and ( x2 , y2)  we can remove slope by

Slope,

m=\frac{y_{2}- y_{1}}{x_{2}- x_{1}}

Intercepts: Where the line cut X axis called X- intercept and where cut Y axis is called Y- intercept.

So, the Slope -intercept form of

x + y = 4   is  y=-x+4

and

y - 2x = -5 is  y=2x-5

3 0
3 years ago
Solve each system of equations (show steps) y=2x x+y=12
Hunter-Best [27]
Im learning this too right now hope this helps

1.you get y by itself and put what y equals where y is in the other equation
y=2x. x+y=12

x+2x=12
3x=12. (divided 3 on both sides)
x=4

2.after you find x(or y) put it in one of the problems above and solve for whats missing which in this case is y

y=2(4) 4+y=12
y=8. -4. -4
y=8
7 0
3 years ago
What is the answer to this question ​
Gre4nikov [31]
4x^2 -2x +3
mark me as brainliest if i’m right !
5 0
3 years ago
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