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marishachu [46]
3 years ago
14

What is the answer!!!!!!

Mathematics
1 answer:
weqwewe [10]3 years ago
8 0

Answer:

The answer is c: the lendth of the photo frame is between 11 and 12 inches.

I hope this helps you!

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7/9 - 4/3w = -5/6 <br> what is w
borishaifa [10]

Answer:

w=1 5/24

Step-by-step explanation:

7/9-4/3w=-5/6

-4/3w=-5/6-7/9

-4/3w=-15/18-14/18

-4/3w=-29/18

w=-29/18:(-4/3)

w=29/18*(3/4)

w=29*3/18*4

w=29/6*4

w=29/24

w=1 5/24

4 0
3 years ago
Write a description of how a diagram can help you solve 2×40
olya-2409 [2.1K]
Draw 40 boxes, and in a separate section draw another 40 boxes.
(If you have the time :) )
8 0
3 years ago
Read 2 more answers
N over 7= 20<br> solve for N
Blababa [14]

Answer:

N = 140

Step-by-step explanation:

N/7 = 20

Inverse operation of division: multiplication

N/7 = 20

becomes:

N = 7 x 20

N = 140

Thus, the value of N is 140.

6 0
3 years ago
An electrical shop reduces display goods by 20%. A display TV is sold for £200. What is the usual price of the same TV?
Fynjy0 [20]
200 is 80%
200 / 80 = 2.50 (1%)
2.50 * 100 = £250

Hope this helps.
8 0
3 years ago
If tan0=-3/4 and 0 is in quadrant IV, cos20= (33/25, -17/25, 32/25, 7/25, 24/25?) and tan20= (24/7, -24/7, 7/25, -7/25, 13/7, -1
Oksana_A [137]

Answer:

  • cos(2θ) = 7/25
  • tan(2θ) = -24/7

Step-by-step explanation:

Sometimes, it is easiest to let a calculator do the work. (See below)

__

The magnitude of the tangent is less than 1, so the reference angle will be less than 45°. Then double the angle will be less than 90°, so will remain in the 4th quadrant, where the cosine is positive and the tangent is negative.

You can also use the identities ...

  cos(2θ) = (1 -tan(θ)²)/(1 +tan(θ)²)

  cos(2θ) = (1 -(-3/4)²)/(1 +(-3/4)²) = ((16-9)/16)/((16+9)/16)

  cos(2θ) = 7/25

__

  tan(2θ) = 2tan(θ)/(1 -tan(θ)²) = 2(-3/4)/((16-9/16) = (-6/4)(16/7)

  tan(2θ) = -24/7

3 0
3 years ago
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