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3 years ago

Write the sum, and then write an equivalent expression by collecting like terms and removing parentheses whenever possible.

Mathematics

1 answer:

Yanka [14]3 years ago

4 0

Answer:

The sum is $t$ .

Step-by-step explanation:

Consider the provided information.

The given expression are - 10t and t - 10t

We need to find the sum of the opposite of -10 t and t - 10t.

The opposite of -10 t is 10 t.

$10t+(t-10t)$

Remove the parenthesis.

$10t+t-10t$

Simplify the number

$10t-10t+t$

Use Additive inverse.

$t$

Hence, the sum is $t$ .

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40. Identify the special angle pair name for (angle)10 and (angle)6 .

natta225 [31]

Answer:

40. Alternate exterior angles.

41. $m\angle 3=108$ .

42. $x=4$

43. $x=13$

Step-by-step explanation:

Given:

From the figure, l and m are 2 lines and p and n are the transversals on the 2 lines.

Question 40:

[tex]m\angle 10\textrm{ and }m\angle 6[/tex] lie exterior to lines l and m are also alternate to each other. Therefore, they are called as a pair of alternate exterior angles.

Question 41:

If lines l || m, then the angles $m\angle 2\textrm{ and }m\angle 3$ are a pair of supplementary angles.

Therefore, the sum of angles 2 and 3 is equal to 180.

$m\angle 2+m\angle 3=180\\72+m\angle 3=180\\m\angle 3=180-72=108$

Therefore, $m\angle 3=108$ .

Question 42:

If lines l || m, then the angles $m\angle 9\textrm{ and }m\angle 5$ are a pair of alternate interior angles and equal to each other.

Therefore, $m\angle 9=m\angle 5$

$9x+5=x+37\\9x-x=37-5\\8x=32\\x=\frac{32}{8}=4$

Therefore, $x=4$ .

Question 43:

If lines l || m, then the angles $m\angle 10\textrm{ and }m\angle 6$ are a pair of alternate exterior angles and equal to each other.

Therefore, $m\angle 10=m\angle 6$

$5x+2=3x+28\\5x-3x=28-2\\2x=26\\x=\frac{26}{2}=13$

Therefore, $x=13$ .

6 0

3 years ago

What is the value of the trig ratio cos x ? Help ASAP

GalinKa [24]

Answer:

14/50 or 7/25

Step-by-step explanation:

cos x = adj/hyp

adj = 14

hyp = 50

---------

you ca learn more about trig

sin x = opp/hyp

tan x = opp/adj

6 0

4 years ago

If m angle 3 =40, what is m angle 2

Oxana [17]

But the answer would be 50 , because there is a 90 degree angle at the bottom of the triangle plus 40 from angle 3 is 130, there is 180 degrees in a triangle leaving 50 degrees left for angle 2

5 0

3 years ago

What variable did the researchers intentionally vary in the experiment, and what are the units for this variable?.

dybincka [34]

The variable the researchers intentionally varied in the experiment is time and the units of the variable is mins.

<h3>What is an independent variable?</h3>

The independent variable is the variable that the researcher varies or changes or manipulates in the course of the experiment. The independent variable usually have a direct effect on the dependent variable.

With the passage of time, the level of concentration increases. This means that time is the independent variable and concentration is the dependent variable.

Please find the required table attached. To learn more about independent variables, please check: brainly.com/question/26287880

3 0

2 years ago

Students in a class were asked how many pets they have at home. 0,0,0,0,2,2,2,2,3,3,4,5,6,6,6,6,7,7,7,7,7,8,8,8,8 what was the p

Oxana [17]

Answer:

4.56 or 5 is they ask you to round to the nearest whole.

Step-by-step explanation:

1. Add up the numbers.

2. Count the number of entries to the survey.

3. Divide the total of pets by the number of entries to get the mean of pets per household

6 0

3 years ago