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3 years ago

Can someone help with this math question please

Mathematics

1 answer:

kherson [118]3 years ago

4 0

Regarding question number 47, which is what I can read well ...
Equation 4 (3x-2) ² = 36 It can be solved in the following way:
-Apply distributive property
4 (9x ²-12x +4) = 36
-We order the terms and equalize to zero
36x² -48x +16 -36 = 0
36 x ² -48x -20 = 0
The roots of this equation are
(-48 + √(48 ²-4 ×36 × -20)) / 2 ×36
and
(-48 - √(48 ²-4 × 36 ×-20)) / 2 ×36
Finally the solution is:
option C
x = -1 / 3
x = 5/3

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BabaBlast [244]

Answer:

95 degrees

Step-by-step explanation:

One and 4 are vertical, meaning they are congruent

4 and 8 are corresponding meaning they are congruent

8 & 7 are supplementary meaning they add up to 180 degrees

Hope this helps :-)

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4 years ago

A circle has a diameter of 4 meters. What is its perimeter (to the nearest hundredth)? What is its area (to the nearest hundredt

Ilya [14]

Answer:

Step-by-step explanation:

The formula of a perimeter (circumference) of a circle:

$C=d\pi$

d - diameter

The formula of an area of a circle:

$A=\pi r^2$

r - radius

We have d = 2r = 4m → r = 2m.

Substitute:

Use π ≈ 3.14

$C=4\pi\ m\approx(4)(3.14)=12.56\ m$

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4 years ago

Joe has a collection of 35 DVD movies. He recieved 8 of them as gifts. Joe bought the rest of hid movies over 3 years.If he boug

Assoli18 [71]

Answer:

Step-by-step explanation:

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8 0

3 years ago

The position function of a particle in rectilinear motion is given by s(t) = 2t^3 - 21t^2 + 60t + 3 for t ≥ 0. Find the position

avanturin [10]

Your first and second derivatives which are the velocity and the acceleration respectively are correct.
The particle has reverses direction when v(t) ≤ 0 so at interval 2 < t < 5 sec.
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4 years ago

5 lbs 4 oz = how many oz

ElenaW [278]

1 pound= 16 ounces
We have 5 pounds so do:
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So answer is
84 oz

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3 years ago

Read 2 more answers