3 years ago

(6x+3)(-5x-6) i need 20 more characters so i'm typing this

Mathematics

1 answer:

Nady [450]3 years ago

4 0

=−30x2−51x−18 the 2 is squared idk how to do it but that’s the answer

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In a school band, the ratio of student late who play the tuba to the students who play the trumpets is 1:6. The ratio of student

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A lot, 1:6 + 3:4 +3 = .116789465 hope this helps....

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3 years ago

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chubhunter [2.5K]

(5y-2)to the power of 2

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3 years ago

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What numbers are a distance of 2/3 unit from 1/2 on a number line?

Eddi Din [679]

Answer: 1/6

Step-by-step explanation:

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2 years ago

Phyllis invested 50000 dollars, a portion earning a simple interest rate of 5 percent per year and the rest earning a rate of 7

Elodia [21]

Answer:

The amount invested at 5% was $39,000 and the amount invested at 7% was $11,000

Step-by-step explanation:

we know that

The simple interest formula is equal to

$I=P(rt)$

where

I is the Final Interest Value

P is the Principal amount of money to be invested

r is the rate of interest

t is Number of Time Periods

Let

x-----> the amount invested at 5%

50,000-x -----> the amount invested at 7%

$t=1\ year\\ I=\$2,720\\r_1=0.05\\r_2=0.07\\P_1=\$x\\P_2=\$(50,000-x)$

substitute in the formula above

$2,720=x(0.05*1)+(50,000-x)(0.07*1)$

solve for x

$2,720=0.05x+3,500-0.07x$

$0.07x-0.05x=3,500-2,720\\0.02x=780\\x=\$39,000$

$(50,000-x)=\$11,000$

therefore

The amount invested at 5% was $39,000 and the amount invested at 7% was $11,000

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3 years ago

Please answer these that i circled. If you cant see them tell me. Tell me the ones you can see.

frutty [35]

#6 is 6, #7 is 7, #8 is 2

6 0

2 years ago