3 years ago

3 and 4 I need help with so confusing

Mathematics

1 answer:

nadya68 [22]3 years ago

7 0

Answer: 3. (3,-3) and 4. (-3,4)

Step-by-step explanation: Number 4 is self explanatory of what they are and number 3, you need to figure out what minus 6 equals -3 and that happens to be 3.

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Write the equation of a line that is perpendicular to the line y= - 1/3x +8 and passes through the point (0,-4)

pantera1 [17]

The answer would be y = 3x-4

8 0

3 years ago

-k/5 = 7/5 can someone help with this?

Elena L [17]

Answer:

k = -7

Step-by-step explanation:

Step 1: Write equation

-k/5 = 7/5

Step 2: Solve for k

Cross multiply: -5k = 35
Divide both sides by -5: k = -7

Step 3: Check

Plug in k to verify it's a solution.

-(-7)/5 = 7/5

7/5 = 7/5

4 0

4 years ago

Question 83 true or false and why ? plz ryt answer thanks

Vikki [24]

The answer is false.

The formula for the SA of a cone is $\pi r^{2}+\pi rl$ where r is the radius of the base and l is the slant height.
Since we have both the slant's height and the radius of the base we can answer this just by plugging numbers in;
$SA=\pi r^{2}+\pi rl\\
SA=\pi (2^{2})+\pi (2)(6)\\
SA=4\pi+12\pi\\
SA=16\pi\\$
$16\pi$ ≈50.2654...

So your answer is false.

6 0

4 years ago

Pls pls help it would be very helpful

liubo4ka [24]

Answer:

111

Step-by-step explanation:

if angle 8 and angle 4 are equal, then angle 8 and angle 5 are equal

so... angle 5= angle 4

3 0

4 years ago

Read 2 more answers