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3 years ago

Find the sum or difference 5/6 + 4/9

1 answer:

6 0

The closest option to the actual answer is a.

1 5/18 is the actual answer.

If you make both the denominators the same, then you can actually add the fractions together.

To make both of the denominators the same, you need to multiply 5/6 by 9 and 4/9 by 6, which would result in 45/54 + 24/54= 69/54 = 23/18. If we convert it to a mixed fraction, it would result into 1 5/18.

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Santiago receives $143 per year in simple interest from three investments. Part is invested at 2%, part at 3%, and part at 4%. T

notka56 [123]

Answer:

02a+.03b+.04c=126,

b=a+500,

c=3b

a=300., b=800., c=2400.

Step-by-step explanation:

5 0

4 years ago

X^2=7^2+8^2-2(7)(8)(cos32)

Natasha_Volkova [10]

Answer:

x ≈4.244833711

Step-by-step explanation:

x^2=7^2+8^2-2(7)(8)(cos32)

Determine the powers

x^2=49+64-2(7)(8)(cos32)

Multiply from left to right

x^2 = 49+64 - 112cos32

x^2 = 49+64 - 94.98138677

Add and subtract

x^2 =113-94.98138677

x^2 = 18.01861323

Take the square root of each side

sqrt(x^2) = sqrt(18.01861323)

x = sqrt(18.01861323)

x ≈4.244833711

x^2 =113

3 0

3 years ago

If f(x)= 2x^2+1, what is f(x) when x=3

givi [52]

Hey there!

f(x) = 2x^2 + 1

y = 2x^2 + 1

y = 2(3)^2 + 1

3^2

= 3 * 3

= 9

y = 2(9) + 1

2(9) = 18

y = 18 + 1

y = 19

Answer: y = 19

Good luck on your assignment and enjoy your day!

~Amphitrite1040:)

8 0

3 years ago

John earns $300 for a 40-hour week. If he receives time and a half for overtime, what is his hourly overtime wage? A.$7.50 B. $9

Phantasy [73]

Answer: A.$7.50

Step-by-step explanation:

$300 divided by 40 = $7.50

5 0

3 years ago

Which of the following values of y makes the equation 4y squared - 7y = 15 true?

uranmaximum [27]

Answer:

C) y=3

Step-by-step explanation:

4y squared - 7y = 15

4(3) squared -7(3)=15

4(9) -7(3)=15

39-21=15

15=15

7 0

3 years ago