Answer:
1 = 112°
2 = 106°
Step-by-step explanation:
Because a straight line's angle equals up to 180°, all we have to do is subtract 180° by the two parallel angle given in CD. Because both lines are congruent, we can use those numbers to find out the value of angle 1 and 2.
<h2><u><em>
Answer:</em></u></h2><h2><u><em>
x = √77</em></u></h2><h2><u><em>
or</em></u></h2><h2><u><em>
x = 8.77</em></u></h2>
<u><em></em></u>
Step-by-step explanation:
it's a right triangle
Pythagorean theorem
the sum of the squares on the legs of a right triangle is equal to the square on the hypotenuse
x² = 9² - 2²
x² = 81 - 4
x² = 77
x = √77
or
x = 8.77
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Answer:
3+d=q and 0.10d+0.25q=1.80
There are 3 dimes and 6 quarters.
Step-by-step explanation:
This situation has two unknowns - the total number of dimes and the total number of quarters. Because we have two unknowns, we will write a system of equations with two equations using the two unknowns.
We know there are three more quarters than dimes. We write that as 3+d=q.
We also know the total cost and the value of each coin. We write 0.10d+0.25q=1.80.
We substitute 3+d for q in the second equation.
0.10d+0.25(3+d)=1.80
0.10d+0.75+0.25d=1.80
0.35d+0.75=1.80
We isolate the variable by subtracting 0.75 across the equal sign and then dividing by the coefficient of d.
0.35d=1.05
d=3
There are 3 dimes.
Answer:
Thời gian vận chuyển hàng hóa trên tuyến đường AB là biến ngẫu nhiên X có phân phối
chuẩn với trung bình 5 giờ, độ lệch chuẩn 0, 25 giờ.
a. Chuyến có thời gian lớn hơn 5,2 ( ) /100 a b giờ được xem là trễ, tính tỉ lệ chuyến trễ?
Step-by-step explanation:
Answer:
Direct & Inverse Proportion (H) - Version 2 January 2016 . A collection of 9-1 Maths GCSE Sample and Specimen questions from AQA, . 1. 2. Write an expression for y in terms of x. [4]. 2. A pebble is thrown vertically upwards. . (b) Find the initial speed of the pebble if the maximum height reached is 16 m. . T is given by.
