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xenn [34]
3 years ago
6

Can anyone help me with this question???

Mathematics
1 answer:
ozzi3 years ago
6 0
Where is your problem dear?
i mean, question??
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Write the equation of the line that passes through (1, 3) and has a slope of 2 in point-slope form. A) y – 1 = 2(x – 3) B) y – 3
fomenos
So point slope form is y=mx+b where m=slope and b=y intercept so

in (x,y) form
one solution is x=1 and y=3, also slope is 2 so
m=2
subsitute
3=2(1)+b
3=2+b
subtract 2
1=b
equation is
y=2x+1

tricky answers so simplify them
A: y-1=2(x-3)
distribute
y-1=2x-6
add 1
y=2x-5
not the answer

B: y-3=2(x-1)
distribute
y-3=2x-2
add 3
y=2x+1
correct
the answer is B
5 0
4 years ago
What is the surface area of the regular pyramid given below?
yuradex [85]

For this case we have by definition, that the total surface area of a regular pyramid with a square base is given by:

SA = \frac {1} {2} p * S + A_ {b}

Where:

p: It is the perimeter of the base

S: It's the inclination

A_ {b}: It is the area of the base

Substituting:

A_ {b} = 7 ^ 2 = 49units ^ 2\\p = 7 + 7 + 7 + 7 = 28units\\S = 10units\\SA = \frac {1} {2} 28 * 10 + 49\\SA = 140 + 49\\SA = 189 \ units ^ 2

ANswer:

Option B

3 0
4 years ago
The sum of 2 times a number and 11 is -7
Leviafan [203]

Let the x represent the unknown number.

"2 times a number" is 2x

"The sum of 2 times a number and 11" is 2x + 11

"The sum of 2 times a number and 11 is -7" is 2x + 11 = -7

Now we solve the equation for x to find the unknown number.

2x + 11 = -7

Subtract 11 from both sides.

2x = -18

Divide both sides by 2.

x = -9

Answer: The number is -9.

Check: 2 times -9 = -18

-18 + 11 = -7

The answer is correct.


7 0
3 years ago
2. Algebra help please do a-c and show all steps
Fudgin [204]

Do the math urself stop bugging ither people to do it for u thats why ur not supposed tonsleep durring class so u can learn how to do it so stop talking to ur freinds and listen

4 0
4 years ago
Help me please! I need answer right now.​
Bess [88]

Answer:

t,4 triangles, right arrow, 27, 57, -14, -38,49,144, 4,1/4

Step-by-step explanation:

5 0
4 years ago
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