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3 years ago

Which pair of angles must be supplementary? HURRYYYYY!

Mathematics

2 answers:

lisabon 2012 [21]3 years ago

8 0

Answer:

1 and 3, if im wrong i am sorry I have not don this in a long time

Step-by-step explanation:

algol133 years ago

5 0

Answer:

I can't read the numbers correctly but a supplementary angles are angle that equal 180*

Hope this helped a little :)

Step-by-step explanation:

You might be interested in

In a lab experiment, 720 bacteria are placed in a Petri dish. The conditions are such that the number of bacteria is able to dou

MakcuM [25]

Answer:

22.4 hours

Step-by-step explanation:

The population of bacteria is modelled by the equation:

$P=P_0e^{rt}$

From the the question, the initial population of bacteria is 720.

So after 26 hours, we have:

$P=2P_0$

This implies that:

$2P_0=P_0e^{26r}$

$2=e^{26r}$

$26r = ln(2)$

$r = \frac{ ln(2) }{26}$

$r = 0.0267$

We want to find how long it will take for there to be 1310 bacteria present.

$1310=720e^{0.0267t}$

$\frac{1310}{720} = {e}^{0.0267t}$

$\ln(\frac{1310}{720}) = {0.0267t}$

$0.59853= {0.0267t} \\ t = \frac{0.59853}{0.0267}$

$t = 22.417$

To the nearest tenth , it will take 22.4 hours

6 0

3 years ago

Which product is positive?

Natalija [7]

Option D:

$\left(-\frac{2}{5}\right)\left(-\frac{8}{9}\right)\left(\frac{1}{3}\right)\left(\frac{2}{7}\right)$ is positive product.

Solution:

<em>If the negative sign is in even number of times then the product is positive.</em>

<em>If the negative sign is in odd number of times then the product is negative.</em>

To find which product is positive:

Option A:

$$\left(\frac{2}{5}\right)\left(-\frac{8}{9}\right)\left(-\frac{1}{3}\right)\left(-\frac{2}{7}\right)$

Here, number of negative signs = 3

3 is an odd number.

So, the product is negative.

Option B:

$$\left(-\frac{2}{5}\right)\left(\frac{8}{9}\right)\left(-\frac{1}{3}\right)\left(-\frac{2}{7}\right)$

Here, number of negative signs = 3

3 is an odd number.

So, the product is negative.

Option C:

$$\left(\frac{2}{5}\right)\left(\frac{8}{9}\right)\left(\frac{1}{3}\right)\left(-\frac{2}{7}\right)$

Here, number of negative sign = 1

1 is an odd number.

So, the product is negative.

Option D:

$$\left(-\frac{2}{5}\right)\left(-\frac{8}{9}\right)\left(\frac{1}{3}\right)\left(\frac{2}{7}\right)$

Here, number of negative sign = 2

2 is an odd number.

So, the product is positive.

Hence option D is the correct answer.

$\left(-\frac{2}{5}\right)\left(-\frac{8}{9}\right)\left(\frac{1}{3}\right)\left(\frac{2}{7}\right)$ is positive product.

4 0

3 years ago

Find the slope between (3,2) and (-2,3)

blagie [28]

$(x_1;\ y_1);\ (x_2;\ y_2)\\\\m=\dfrac{y_2-y_1}{x_2-x_1}\\\\(3;\ 2);\ (-2;\ 3)\\\\\boxed{m=\dfrac{3-2}{-2-3}=\dfrac{1}{-5}=-\dfrac{1}{5}}$

3 0

3 years ago

4. In this figure, B↔A↔

LenaWriter [7]

Answer:

B. 25 degrees

Step-by-step explanation:

i think

6 0

3 years ago

IF YOU KNKW ABOUT THIS PLEASE HELP .... What is the volume of the cone shown below?

bazaltina [42]

Answer:

A. 300π units³

Step-by-step explanation:

Formula for volume of a cone = ⅓πr²h

Where,

radius (r) = ½(10) = 5 units

height (h) = 36 units

Plug in the values and find the volume in terms of π

Volume of the cone = ⅓*π*5²*36

Volume of the cone = 300π units³

6 0

2 years ago