It is known that x = 1 is the solution of the linear equation AX-1 = 2 (X-B), and y = 1 is the solution of the linear equation B (Y-3) = 2 (1-A). In y = ax & sup2; = bx-3, we find the value of y when x = - 3

It is known that x = 1 is the solution of the linear equation AX-1 = 2 (X-B), and y = 1 is the solution of the linear equation B (Y-3) = 2 (1-A). In y = ax & sup2; = bx-3, we find the value of y when x = - 3

It can be seen from the title
a-1=2(1-b)
b(1-3)=2(1-a)
Then a = 5 / 3, B = 2 / 3
y=5/3x2-2/3x-3
=15+2-3
=14

A large amount of can only modify uncountable nouns?

100% sure
I'll add with reference books
A great / good many, large numbers of, scores of, dots of, masses of
A good / great deal of, a large / great amount of, and a large / great amounts of are used to modify uncountable nouns
A lot of, lots of, plenty of, a large / great quantity of, quantities of, a supply of, supplies of

In △ ABC & nbsp;, ab = AC = 13, BC = 10, then tanb = 1___ ．

As shown in the figure, in isosceles △ ABC, ab = AC = 13, BC = 10, through a as ad ⊥ BC in D, then BD = 5, in RT △ abd, ab = 13, BD = 5, then ad = ab2-bd2 = 12, so tanb = adbd = 125

On the usage of English phrases
What's the difference between be able to and could?

1) They will be able to tell you the news soon

In the triangle ABC, ab = C, BC = a, AC = B, and a, B are two parts of the equation x2-5x + 6 = 0

What do you want

Include (phrases) in English

include

The new fraction of 97 out of 100 is 100 out of 101

Set an X and you'll get it

Is any, any of followed by singular or plural?

The indefinite pronoun any can be used as a noun or an adjective. When used as a pronoun, it can refer to a countable or uncountable noun. When used as an adjective pronoun, it can modify a plural countable or uncountable noun, or a singular countable noun

Given that f (x) = 2x3-6x2 + m (M is a constant) has a maximum value of 3 on [- 2,2], then the minimum value of this function on [- 2,2] is ()
A. - 37B. - 29c. - 5D. None of the above is true

∵ f ′ (x) = 6x2-12x = 6x (X-2), ∵ f (x) is an increasing function on (- 2,0) and a decreasing function on (0,2), ∵ when x = 0, f (x) = m is the maximum, ∵ M = 3, so f (- 2) = - 37, f (2) = - 5. ∵ the minimum is - 37

Find some Chinese phrases in English
1. More than once 2. Play with 3. Look, watch 4. Keep quiet 5. What other animals 6. Eat grass 7. It's a bit interesting 8. From 9. Exchange with 10. Other animals 11. In notebook 12. More than two animals 13. Match with
Please translate in Junior English

once moreplay withlook atkeep quietother animalseat grassquite interestingcome fromchange withother animalson the notebookmore than 2 animalsmatch with