The third answer
1 quarter, 6 dimes, 1 nickel, 7 pennies
Answer:
Robin's mean score is lower than Evelyn's mean score. This means Robin is winning as you need to minimise your score in order to be as close to the target as possible.
<u>Answer:</u>
<em>(2•7a5)</em>
<u>Step-by-step explanation:</u>
<em>Step 1 :</em>
<em>Equation at the end of step 1 :</em>
<em> -2a • (0 - 7a4)</em>
<em>Step 2 :</em>
<em>Multiplying exponential expressions :</em>
<em> 2.1 a1 multiplied by a4 = a(1 + 4) = a5</em>
We have been given that in ΔBCD, the measure of ∠D=90°, the measure of ∠C=42°, and CD = 7.5 feet. We are asked to find the length of DB to nearest tenth of foot.
First of all, we will draw a right triangle using our given information.
We can see from the attachment that DB is opposite side to angle C and CD is adjacent side to angle.
We know that tangent relates opposite side of right triangle to adjacent side of right triangle.
![\text{tan}=\frac{\text{Opposite}}{\text{Adjacent}}](https://tex.z-dn.net/?f=%5Ctext%7Btan%7D%3D%5Cfrac%7B%5Ctext%7BOpposite%7D%7D%7B%5Ctext%7BAdjacent%7D%7D)
![\text{tan}(\angle C)=\frac{DB}{CD}](https://tex.z-dn.net/?f=%5Ctext%7Btan%7D%28%5Cangle%20C%29%3D%5Cfrac%7BDB%7D%7BCD%7D)
![\text{tan}(42^{\circ})=\frac{DB}{7.5}](https://tex.z-dn.net/?f=%5Ctext%7Btan%7D%2842%5E%7B%5Ccirc%7D%29%3D%5Cfrac%7BDB%7D%7B7.5%7D)
![7.5\cdot\text{tan}(42^{\circ})=\frac{DB}{7.5}\cdot 7.5](https://tex.z-dn.net/?f=7.5%5Ccdot%5Ctext%7Btan%7D%2842%5E%7B%5Ccirc%7D%29%3D%5Cfrac%7BDB%7D%7B7.5%7D%5Ccdot%207.5)
![7.5\cdot\text{tan}(42^{\circ})=DB](https://tex.z-dn.net/?f=7.5%5Ccdot%5Ctext%7Btan%7D%2842%5E%7B%5Ccirc%7D%29%3DDB)
![7.5\cdot0.900404044298=DB](https://tex.z-dn.net/?f=7.5%5Ccdot0.900404044298%3DDB)
![DB=7.5\cdot0.900404044298](https://tex.z-dn.net/?f=DB%3D7.5%5Ccdot0.900404044298)
![DB=6.753030332235\approx 6.8](https://tex.z-dn.net/?f=DB%3D6.753030332235%5Capprox%206.8)
Therefore, the length of DB is approximately 6.8 feet.
Associative property is changing the grouping in multiplication and it won't affect the product.
So (17)(13)(7x) could equal (17)(7x)(13) or <span>(7x)(13)(17) etc...
So the answer in here is D </span>(7x)(13)(17)