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Lina20 [59]
3 years ago
8

Mr. Anderson wrote (7x9) 103 on the board. What is the value of that expression

Mathematics
1 answer:
RUDIKE [14]3 years ago
8 0

Answer:

6,489

Step-by-step explanation:

first you would multiply 7 and 9, which would be 63

7 x 9 = 63

then you would multiply 63 by 103 since they are being multiplied

63 x 103 = 6,489


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Given: tangent A = negative StartRoot 15 EndRoot What is the value of Tangent (A minus StartFraction pi over 4 EndFraction)?
marshall27 [118]

Answer:

( √15 + 8)/7

Step-by-step explanation:

TanA = -√15

.we are to find tan(A-π/4).

In trigonometry

Tan(A-B) = TanA - TanB/1+ tanAtanB

Hence:

tan(A-π/4) = TanA - Tanπ/4/1+ tanAtanπ/4

Substitute tan A value into the formula

tan(A-π/4) = -√15-tanπ/4 / 1+(-√15)(tanπ/4

tan(A-π/4) = -√15-1/1-√15

Rationalize

-√15-1/1-√15 × 1+√15/1+√15

= -√15-√225-1-√15/(1-√225)

= -2√15-15-1/1-15

= -2√15 -16/(-14)

= -2(√15+8)/-14

= √15 + 8/7

Hence the required value is ( √15 + 8)/7

4 0
3 years ago
Read 2 more answers
Martin uses 5/8 of a gallon of paint to cover 4/5 of a wall. What is the unit rate at which Martin paints in walls per gallon
WITCHER [35]

Divide 4/5 by 5/8 since that would tell you how many walls he can paint in an hour.

4/5 walls÷5/8 gallons=1.28walls/gallon.

8 0
3 years ago
The value of the digit in the hundreds place in the number is 653841 is 1/10 the value of the digit in the thousands place in wh
elena55 [62]
3 is in the thousands place
5 0
3 years ago
What us 2/3 divided by 6?
iren [92.7K]

Answer:

0.111111111 or 1/9

Step-by-step explanation:

2/3 divided by 6

keep change flip = KCF

Keep the 2/3

Flip the sign into the opposite

Change the 6 to it's reciprocal

2/3 times 1/6

multiply both the numerator, and denominator

2*1= 2 ( numerator)

3*6= 18 ( denominator)

2/18 simplify that and you get..........

1/9 as your answer

Hope this helped!

4 0
3 years ago
A stackable CD rack holds 20 CDs and costs $3. Mark has a collection of 120 CDs. How much will it cost him to buy enough racks t
elixir [45]

Answer:

You would need $18 total to buy the racks needed.

Step-by-step explanation:

First, every 20 CDs needs a new rack, so you would divide 120 by 20.

120 / 20 = 6 racks

Second, you would multiply the price ($3) of a rack by how many racks needed.

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5 0
3 years ago
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