15 x 1.59 = 23.85
Her order is between 20 euros and 34.99 euros. Therefore, she gets 2.5% discount.
2.5 x 23.85/ 100 = 0.60
That means she gets approximately 60 cents off her order.
Answer:
download the app called photomath an then u can scan the math problem and it gives u the answer and how to work it out
Step-by-step explanation:
A=5i+2j
B=2i-3j
C=-8i+3j
we find the vectors of AB, BC & AC:
AB=(2-5)i+(-3-2)j=-3i-5j
BC=(-8-2)i+(3-(-3))j=-10i+6j
AC=(-8-5)i+(3-2)j=-13i+j
now if the dot product of two of these vectors result in zero, it means that those vectors (representing the triangle sides) are perpendicular to each other (which means triangle ABC is a right-angled triangle)
let's try:
AB.BC=(-3)(-10)+(-5)(6)=30-30=0
thus the triangle ABC is a right-angled triangle.
The <span>ratio of adam's height to sam's height is 4:3. Therefore, Sam's height is 3/4 of adam's height. This is done by applying rules on ratios. We do as follows:
4 / 3 = adam's height / sam's height
sam's height = (3/4) adam's height
Hope this answers the question. Have a nice day.</span>