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Kazeer [188]
3 years ago
6

A rectangular sign must have an arae of 43 square yards. its lenght must be 2 yards more than its width. find the dimensions of

the sign
Mathematics
1 answer:
inna [77]3 years ago
8 0
We know A=L•W so set 43 equal to A. Equation should look like this thus far: 43=L•W. Now when the question says more than we know that means adding. Since we don’t know the width let w=width. So know your equation should look like this: 43=2+w•(w). Knowing this equation you should be able to solve for the dimensions of the sign. If you need help on that let me know.
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Which equation shows the quadratic formula used correctly to solve 7x2 = 9 + x for x?
nydimaria [60]
I hope this helps you

7 0
3 years ago
Read 2 more answers
What is the slope and y-intercept of the line 3x - 4y = 12?*
Lorico [155]

Answer:

m = 3/4; b = -3    

Step-by-step explanation:

1) First, put the given equation into slope-intercept form. This is so we can identify its slope and y-intercept easily. Isolate y:

3x-4y = 12\\-4y = -3x+12\\y = \frac{3}{4} x-3

2) Lines that are in slope-intercept form are represented by the formula y = mx + b. The number in place of m, or the coefficient of the x-term, represents the slope. The number in place of b represents the y-intercept. So, the slope of  y = \frac{3}{4} x-3  is \frac{3}{4}, and its y-intercept is -3.

5 0
3 years ago
The region bounded by y = e−x2, y = 0, x = 0, and x = b (b > 0) is revolved about the y-axis. (Round your answers to three de
kari74 [83]

Answer:

0.982 * \pi  = 3.085 cubic units

Step-by-step explanation:

To find the volume of the solid generated by a region that is bounded by lines where x = 0 , x (b) = 2 we apply the formula given in the attachment below  

the required region boundaries are

y = e^-x2 , y = 0 ,  x = 0,  x = b ( b >0)

attached below is a detailed solution of the problem

6 0
3 years ago
Order these from least to greatest 3 39/40 , 3 19/20 , 3 1/2
Lera25 [3.4K]

Hey!

First change all the fractions so that they have a common denominator: 40

3 \frac{39}{40} = 3 \frac{39}{40}

3 \frac{19 \times 2}{20 \times 2} = 3 \frac{38}{40}

3 \frac{1 \times 20}{2 \times 20} = 3 \frac{20}{40}

Now order them:

3 \frac{39}{40} , 3 \frac{19}{20} , 3 \frac{1}{2}

Good luck and hope this helps! :)

3 0
3 years ago
A ladder reaches the top of a 20 foot building. the ladder is 4.5 feet away from the building. how long is the ladder?
KATRIN_1 [288]

Answer:

C

Step-by-step explanation:

do that with pithagoras:

20² + 4,5² = x²

400 + 20,25 = x²

420,25 = x²

x = \sqrt{420,25}

x ~ 20,5

Letter C: 20,5 feet

4 0
2 years ago
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