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Xelga [282]
2 years ago
12

What's the answer please

Mathematics
1 answer:
motikmotik2 years ago
6 0
B. The equation has one real root.
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Which is equivalent to (9y2 – 4x)(9y2 + 4x), and what type of special product is it?
QveST [7]
This is an example of the difference of squares.

a^2 - b^2 = (a-b)(a+b)

So to find the product of <span>(9y</span>²<span> – 4x)(9y</span>²<span> + 4x), we use the formula for the difference of squares.

</span>(9y^2 - 4x)(9y^2 + 4x)\\\\=(9y^2)^2 -(4x)^2\\\\=\boxed{\bf{81y^4 - 16x^2}}<span>
</span>
7 0
3 years ago
A bus leaves Los Angeles at 8am moving northeast at 60 mph. Three hours later, a truck leaves the same place traveling 1 2/3 tim
love history [14]

Answer:

7.5 hours

Step-by-step explanation:

Using the variable 't' for time, you can set up an equation to find out how long it will take the truck to catch up to the  bus.  Since the bus is traveling at 60mph and the truck is traveling 1 2/3 times faster, we need to first find the rate of the truck:

1\frac{2}{3}=\frac{5}{3}

\frac{60}{1}*\frac{5}{3}=\frac{300}{3}=100mph

Using 't' and the knowledge that they will have traveled the same distance we the truck catches up to the bus and the fact that the truck left 3 hours later:

60t = 100(t - 3)  or 60t = 100t - 300

Solve for 't':  60t - 100t = -300 or -40t = -300  so, t = 7.5 hours

5 0
3 years ago
Read 2 more answers
Which of the following is a right that's given to anyone who has a bank account
charle [14.2K]
The answer is <span>a. the right to be told what fees or minimum balances an account has</span>
7 0
3 years ago
Read 2 more answers
What is the difference between rates and proportions???
frez [133]
A rate often involves time:  e. g., 33 feet per second; also, we are finding the ratio of one type of measurement with respect to another:  distance and time.

A proportion is often the ratio of different measures of the same thing:

e. g.   5 apples
          ------------
           7 apples
6 0
3 years ago
Solve for "c."<br> a = b/(c-d)
8_murik_8 [283]

Answer:

c=

ad+b

a

give me brilliant please

Step-by-step explanation:

a=

b

c−d

Step 1: Multiply both sides by c-d.

ac−ad=b

Step 2: Add ad to both sides.

ac−ad+ad=b+ad

ac=ad+b

Step 3: Divide both sides by a.

ac

a

=

ad+b

a

c=

ad+b

a

6 0
2 years ago
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