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tatyana61 [14]
2 years ago
8

*****((((((Please help me with one more question. Test of the smarter people in brainly. Thx!!!!!! )))))******

Mathematics
2 answers:
zhuklara [117]2 years ago
8 0

Answer:

30 in^2

Step-by-step explanation:

When you reduce the total size by 0.5, the total area is divided by 4.

GaryK [48]2 years ago
4 0

Answer:

30 in^2

Step-by-step explanation:

When you reduce the total size by 0.5, the total area is divided by 4.

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Show workings please
Alenkinab [10]

Answer: x = 21°

Step-by-step explanation:

37 + 4x + (3x - 4) = 180°   Original Equation

37 + 4x + 3x - 4 = 180°   Commutative Property of Addition

7x + 33 = 180°   Combine like terms

7x = 148°  Subtract 33 from both sides

x = 21°   Divide both sides by 7

8 0
2 years ago
One planet holds 14 Tomato seedlings. If you have 1,113 seedlings, how many containers do you need to hold all seedlings?
kaheart [24]

Answer:

If your talking about the containers, then you would need 80

containers, hope this helps.

Step-by-step explanation:

5 0
3 years ago
Find cos(2*ABC) 100POINTS
juin [17]

Answer:

-\dfrac{7}{25}

Step-by-step explanation:

<u>Trigonometric Identities</u>

\cos(A \pm B)=\cos A \cos B \mp \sin A \sin B

<u>Trigonometric ratios</u>

\sf \sin(\theta)=\dfrac{O}{H}\quad\cos(\theta)=\dfrac{A}{H}\quad\tan(\theta)=\dfrac{O}{A}

where:

  • \theta is the angle
  • O is the side opposite the angle
  • A is the side adjacent the angle
  • H is the hypotenuse (the side opposite the right angle)

Using the trig ratio formulas for cosine and sine:

  • \cos(\angle ABC)=\dfrac{3}{5}
  • \sin(\angle ABC)=\dfrac{4}{5}

Therefore, using the trig identities and ratios:

\begin{aligned}\implies \cos(2 \cdot \angle ABC) & = \cos(\angle ABC + \angle ABC)\\\\& = \cos (\angle ABC) \cos (\angle ABC) - \sin(\angle ABC) \sin (\angle ABC)\\\\& = \cos^2(\angle ABC)-\sin^2(\angle ABC)\\\\& = \left(\dfrac{3}{5}\right)^2-\left(\dfrac{4}{5}\right)^2\\\\& = \dfrac{3^2}{5^2}-\dfrac{4^2}{5^2}\\\\& = \dfrac{9}{25}-\dfrac{16}{25}\\\\& = \dfrac{9-16}{25}\\\\& = -\dfrac{7}{25} \end{aligned}

7 0
2 years ago
Read 2 more answers
Exterior angle theorem <br><br> A) 110°<br><br> B) 34°<br><br> C) 23°<br><br> D) 30°
Mashcka [7]

Answer:

D) 30°

Step-by-step explanation:

By exterior angle theorem:

? = 70° - 40°

? = 30°

3 0
2 years ago
Read 2 more answers
Vihat is half of 7 minutes 24 seconds?
lara31 [8.8K]

Answer:

3 Minutes 42 Seconds

Step-by-step explanation:

Half of 7 minutes is 3 minutes and 30 seconds, half of 24 seconds is 12 seconds. If you add the halfed times together you get a total of 3 minutes 42 seconds.

7 0
2 years ago
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