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Anastasy [175]
3 years ago
8

PLZZZ HELP ME WITH THESE 4 QUESTIONS THX SO MUCH!! ( 80 POINTSSSSS!!!!)

Mathematics
1 answer:
katrin2010 [14]3 years ago
7 0

For section 3.01 black, number 1 is correct, but number 2 is wrong.

When you raise an exponent to an exponent, you multiply the 2 exponents.

(x^4)^5 is x^20.

Number 3 is also right.

For 3.02, you use the interest formula. (1 + i/100)^t times x

x is the amount of money you have originally. i is the interest rate, t is the time.

1,500(1.03)^5 = 1738.91111145

$1738.91

For section 3.01 red in fractional exponents the numerator are the powers and the denominator is the root.

\sqrt[4]{a^{3} }  = a^{\frac{3}{4} }

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6x^2-4xy-15xy+10y^2 factor by grouping
PtichkaEL [24]
4 answers · Mathematics
Best Answer
We will need to split the middle term and use the grouping method. To do this multiply the coefficient of the first term (6) against the coefficient of the last term (10):

6 * 10 = 60
Factors of 60 = +-(1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60)

From the list of factors find two numbers that when added together give -19 and when multiplied together give 60. -15 and -4 added together give -19 and multiplied together give 60 so split the middle term by rewriting these values back into the expression:

6x^2 - 15xy - 4xy + 10y^2

Now use the grouping method, take out the highest common factor between the two sets of terms:

3x(2x - 5y) - 2y(2x - 5y)

Group the outside terms:

(3x - 2y)(2x - 5y)


Answers
6 = -3*-2
10 = 5*2
5*3+2*2=19
thus
(2y-3x)(5y-2x)
8 0
3 years ago
Write in scientific notation: 0.0042
mylen [45]

Answer:

Scientific Notation:

4.2 × 10^-3

E-Notation:

4.2e-3

Engineering Notation:

4.2 × 10^-3

Real Number:

0.0042

______________________________

6120

Step-by-step explanation:

8 0
3 years ago
An online video game site charges a $10 membership fee and a $6 monthly cost. Another game site charges $6 membership and a $8 m
Romashka [77]

Answer:

SO... whats the actual question?

Step-by-step explanation:

6 0
3 years ago
Read 2 more answers
Its multiple choice pls help
V125BC [204]

Answer:

I don't understand the question could u explain it more?

Step-by-step explanation:

3 0
3 years ago
A=bh;A=5,h=5<br> HELP ME
harkovskaia [24]

Answer:

b = 1

Step-by-step explanation:

5 = 5b

b = 1

5 0
2 years ago
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