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2 years ago

*((((((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:

Trigonometric Identities

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

Trigonometric ratios

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

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 A) 110° B) 34° C) 23° 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

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

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