Question

跪求大神帮忙解答疑难，翻译内容不多，但要求翻译准确，无语法问题，明早验货，有能完成的来，谢谢

第三题：
第四题：
分别运用公式法，函数法和图像法求最佳拟合线。求得最佳拟合线为y=6.88X-23.05.
（2）
分别将X=10和X=60带入最佳拟合线求得所对应的销售量分别为45.7和389.5.
(3)
分别运用公式法，函数法和图像法求出决定系数和相关系数的值。
第五题;
运用了两种方式计算等额本息的贷款方式，第一种是公式法，直接带入求和，第二种是先运用数学的方法再运用公式法，因为分母为等比数列，且a1=1，q=（1+0.15），所以利用等比数列通项公式求和，求出tn=102.44，在利用公式求出A1=6390.68.
运用公式法求出基金贷款方式的值为6439.44，通过比较基金贷款方式的值和等额本息贷款方式的值可知，基金贷款方式的值所支付的利率小于等额本息贷款方式。

Answer 1

第三题：
Qrestion 3:

第四题：
Question 4:

分别运用公式法，函数法和图像法求最佳拟合线。求得最佳拟合线为y=6.88X-23.05.

To find the best-fit line by using of the formula method, function method and image method respectively. The obtained best-fit line would be y = 6.88 X -23.05

（2）分别将X=10和X=60带入最佳拟合线求得所对应的销售量分别为45.7和389.5.
Drag the X=10 follow by X=60 in the best-fit line to find the corresponding sales of 45.7 and 389.5 respectively

(3)分别运用公式法，函数法和图像法求出决定系数和相关系数的值。
Find the values of the coefficient of determination and coefficient of correlation by using of the formula method, function method and image method respectively

第五题;
Question 5:

运用了两种方式计算等额本息的贷款方式，第一种是公式法，直接带入求和，第二种是先运用数学的方法再运用公式法，因为分母为等比数列，且a1=1，q=（1+0.15），所以利用等比数列通项公式求和，求出tn=102.44，在利用公式求出A1=6390.68.
Using two methods to calculate the the equal amount of borrowing and interests loan method. The first method is to get the sum by direct drag in. The second method is to use the mathematics method first and then the formula method, because the denominators are of geometrical sequences and also a1 = 1, q= (1+0.15), therefore, use the geometrical sequences'
general term formula to work out the sum, to find tn=102.44 and through using of the formula to find A1 =6390.68.

运用公式法求出基金贷款方式的值为6439.44，通过比较基金贷款方式的值和等额本息贷款方式的值可知，基金贷款方式的值所支付的利率小于等额本息贷款方式。
By using of the formula to find the fund loan method's value of 6439.44. Through the comparison of the values between the fund loan method and the equal amount of borrowing and interests loan method and we know that the amount of interests paid by the fund loan method would be smaller than those paid by the equal amount of borrowing and interests loan method.

Answer 2

Respectively using the formula method, function method and image method to find the best fitting line. The best-fit line is obtained for y = 6.88 X - 23.05.
(2)
X = 10 and X = 60 respectively into the best-fit line is obtained by the corresponding sales of 45.7 and 389.5 respectively.
(3)
Respectively using the formula method, function method and image method decision coefficient and correlation coefficient values
The fifth topic;
Applying the two ways of calculation of reimbursement of principal and interest of loan, the first is a formula method, directly to the sum, the second is to use mathematical method to use formula method, because the denominator for the geometric sequence, and a1 = 1, q = (1 + 0.15), so using the geometric sequence summation general term formula, and tn = 102.44, in the use of formula to find the a1 = 6390.68.

Using the formula method fund loan value of 6439.44, by comparing the value of the fund loan and equal principal and interest of loan value, the fund was paid for the value of the loan interest rate is less than an equal principal and interest of loan.