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lara31 [8.8K]
2 years ago
11

PLS HELP ILL GIVE BRAINLIEST

Mathematics
2 answers:
trasher [3.6K]2 years ago
8 0

Answer:

y=1/3x+4

Step-by-step explanation:

y=2-3x is equivilent to y=-3x+2

Here were see that the coefficient of x is -3. In order to find a line that is perpendicular to another line, we need to put the opposite sign and make the coefficient the reciprical.

So now we know that y=1/3x will be perpendicular to your line. If the point goes through (0,4) that means when x is zero, y is 4. If we plug that into our expression 4=1/3*0, we see that we need to add 4 to make this true.

So our answer is y=1/3x+4

Sati [7]2 years ago
5 0
The answer is y = 1/3x + 4. -3x repricdal = 1/3. 4=1/3(0) + 4
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Can someone please please help me with this question !!!
Alex_Xolod [135]

Answer: b and d

Step-by-step explanation:

Since the roots are x=2 and x=6, we can write the equation as

f(x)=a(x-2)(x-6)

Substituting in the coordinates of the vertex,

-4=a(4-2)(4-6)\\\\-4=a(2)(-2)\\\\-4=-4a\\\\a=1

So, the equation is f(x)=(x-2)(x-6).

On expanding, we get f(x)=x^2 - 8x+12

5 0
2 years ago
The sales tax rate in Brooklyn is 8 7/8%. If Sabrina buys a sofa for $599 and a coffee table for $299, which is the best estimat
mr_godi [17]
First, add both prices together.
599+299=898
If you are only finding sales tax, you need to multiply 898 and 8 7/8
8 7/8% is equal to 8.875%
898*8.875%=79.6975 or $79.70 extra for sales tax
3 0
3 years ago
56 out of the 56 employees at the sports shop are part-time employees. What percentage of the employees at the sports shop work
ankoles [38]

Answer:

100%

Step-by-step explanation:

Since 56/56 employees at the sports shop work part time, that means 100% of them do, or all of them.

7 0
3 years ago
A 4-foot tall child walks directly away from a 12-foot tall lamppost at 2 mph. How quickly is the length of her shadow increasin
xz_007 [3.2K]

Answer:

The length of the shadow is increasing with the rate of 1.5 feet per sec

Step-by-step explanation:

Let AB and CD represents the height of the lamppost and child respectively ( shown below )

Also, let E be a point represents the position of child.

In triangles ABE and CDE,

\angle ABE\cong \angle CDE    ( right angles )

\angle AEB\cong \angle CED  ( common angles )

By AA similarity postulate,

\triangle ABE\sim \triangle CDE

∵ Corresponding sides of similar triangles are in same proportion,

\implies \frac{AB}{CD}=\frac{BE}{DE}

We have, AB = 12 ft, CD = 4 ft, BE = BD + DE = 6 + DE,

\implies \frac{12}{4}=\frac{6+DE}{DE}

12DE = 24 + 4DE

8DE = 24

DE=3

Now, the speed of walking = 2 mph = \frac{2\times 5280}{3600}\approx 2.933\text{ ft per sec}

Note: 1 mile = 5280 ft, 1 hour = 3600 sec

Thus, the time taken by child to reach at E  

= \frac{\text{Walked distance}}{\text{Walking speed}}

=\frac{6}{2.933}

= 2.045 hours

Hence, the change rate in the length of shadow

= \frac{\text{Length of shadow}}{\text{Time taken}}

=\frac{3}{2.045}

= 1.5 ft per sec.

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3 years ago
Ben saved $66 and spent $30. What percentage of his money did he spend? Round your answer to the nearest whole percent.
emmainna [20.7K]
45%
66/30=45 (repeating), rounds to 45%
8 0
3 years ago
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