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4 years ago

A. No, because it fails the vertical line test.

Mathematics

1 answer:

erma4kov [3.2K]4 years ago

5 0

Answer:

B. Yes, because it passes the vertical line test.

Step-by-step explanation:

The is a function. It has a one to one correspondence

It will pass the vertical line test

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W - 8 = 12 Select the correct answer.

Lelu [443]

Answer:

w = 20

Step-by-step explanation:

We need to solve the equation, to find the value of w:

w - 8 = 12 - we need to add 8 to both sides

w - 8 + 8 = 12 + 8 - the -8 and the +8 on the left hand side cancel out to give just w

w = 20

4 0

4 years ago

Find the cos A and tan B to four decimal places. URGENT

Nikolay [14]

cos A is 0.8511 and tan B is 1.6

Step-by-step explanation:

Find the 3rd length or the hypotenuse.

Pythagoras theorem

$hypotenuse^{2}$ = $adjacent^{2}$ + $opposite^{2}$

$hypotenuse^{2}$ = $8^{2}$ + $5^{2}$

$hypotenuse^{2}$ = 64 + 25

hypotenuse = $\sqrt{89}$

hypotenuse = 9.4

a) Cos A

Data:

Adjacent = 8

Hypotenuse = 9.4

Formula:

Cos (Angle) = $\frac{adjacent}{hypotenuse}$

Cos A = $\frac{8}{9.4}$

Cos A = 0.8511

A = $cos^{-1}$ (0.8511)

A = 31.7°

b) Tan B

Data:

Opposite = 8

Adjacent = 5

Formula:

Tan (Angle) = $\frac{opposite}{adjacent}$

Tan B = $\frac{8}{5}$

Tan B = 1.6

B = $cos^{-1}$ (1.6)

B = 58°

Therefore, cos A is 0.8511 and tan B is 1.6.

Keyword: cos, tan

Learn more about cos at

#LearnwithBrainly

3 0

3 years ago

Evaluate: log1255 - | - | N | DONE o o o

Bas_tet [7]

Answer:

$\log_5(125) =3$

Step-by-step explanation:

Question:

To evaluate $\log 125$ to the base 5

Solution:

We will apply log properties to evaluate.

We will use the following property of logarithms

If $\log _ab=x$

Then, $a^x=b$

Let $\log_5(125) =x$

So, we have

$5^x=125$

We can write $125=5\times 5\times 5=5^3$

$5^x=5^3$

∴ $x=3$

Thus, we have

$\log_5(125) =3$

7 0

4 years ago

Read 2 more answers

Each day, mr. ling has a boy and a girl summarize the assignment for the day. there are 8 boys and 9 girls in his group. in how

miv72 [106K]

8x9=72

In 72 ways. Hope this helps.

4 0

3 years ago

Wangari plants trees at a constant rate of 1212 trees every 33 hours. Write an equation that relates pp, the number of trees Wan

igor_vitrenko [27]

Answer:

$p=4h$

Step-by-step explanation:

Let p be the number of trees Wangari plants, and h be the time she spends planting them in hours.

We have been given that Wangari plants trees at a constant rate of 12 trees every 3 hours.

Let us find number of trees planted in 1 hour by dividing 12 by 3.

$\text{Number of trees planted in 1 hour}=\frac{12\text{ plants}}{3\text{ hour}}$

$\text{Number of trees planted in 1 hour}=4\frac{\text{ plants}}{\text{ hour}}$

We can represent this information as: $p=4h$

Therefore, the equation $p=4h$ relates the number of trees (p) Wangari plants, and the time (h) she spends planting them in hours.

3 0

4 years ago

Read 2 more answers