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3 years ago

Hi can you help me with this problem i dont understand it

Mathematics

1 answer:

Romashka-Z-Leto [24]3 years ago

5 0

Answer:

Answer is d - x = $\frac{y + z}{4}$

Step-by-step explanation:

Step 1: Add 'z' to both sides

4x -z (+z) = y + z

4x = y + z

Step 2: To solve for x, divide both sides by 4

$\frac{4x}{4}$ = $\frac{y + z}{4}$

x = $\frac{y + z}{4}$

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ahrayia [7]

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l:6 w:9

Step-by-step explanation:

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1 54

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3 years ago

Read below i need some help please

Anton [14]

Answer:

8/20

Step-by-step explanation

boys left handed=3

boys right handed=9

girls left handed=2

girls right handed=6

what is the probability that a student chosen from random is a girl? give answer as a fraction please and include step by step process

girls left handed: 2

girls right handed: 6

6+2=8

total all students 20

8/20

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3 years ago

If you draw two cards from the deck at the same time, what is the probability that they will both be hearts?

koban [17]

Answer:

The probability is 1/17.

Step-by-step explanation:

The total number of ways in which 2 cards can be selected from a pack of 52 cards is $\binom{52}{2}$

The total number of combinations of 2 cards with hearts equals $\binom{13}{2}$

Thus the probability of the event that both the cards have hearts becomes

$P(E)=\frac{\binom{13}{2}}{\binom{52}{2}}=\frac{1}{17}$

4 0

3 years ago

If the area of a circle measures 9π cm2, what is the circumference of the circle in terms of π?

8_murik_8 [283]

Answer: option B

Step-by-step explanation:

The circumference of a circle can be calculated with this formula:

$C=2\pi r$

Where "C" is the circumference of the circle and "r" is the radius of the circle.

The area of a circle can be calculated with:

$A=\pi r^2$

Where "r" is the radius.

Knowing the area, you can solve for the radius:

$r^2=\frac{9\pi cm^2}{\pi }\\\\r=\sqrt{\frac{9\pi cm^2}{\pi } }\\\\r=3cm$

Substituting into $C=2\pi r$ , you get that the circumference of this circle is:

$C=2\pi (3cm)=6\pi\ cm$

8 0

3 years ago

Read 2 more answers

Solve for y 2x + y >= 4

babunello [35]

2x + y >= 4
- 2x
y >= 4 - 2x

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3 years ago

Read 2 more answers

Hi can you help me with this problem i dont understand it​

Hi can you help me with this problem i dont understand it