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FromTheMoon [43]

3 years ago

5

PLEASE PLEASE HELP!! ITS JUST 2 QUESTIONS ! FOR 15 POINTS BE HONEST WITH YOUR ANSWER!!

1 answer:

GaryK [48]3 years ago

3 0

<span>1. Two angles are complementary. One angle measures 50°. What is the measure of the other angle?
</span>complementary, sum of the angles = 90
<span>
so 90 -</span> 50 = 40
<span>
answer is
C.40°

2.Two angles are supplementary. One angle measurement is 30° more than the other. What is the measure of the smaller angle?

</span>supplementary, sum of the angles = 180

One angle measurement is 30° more than the other.
so both angles are 75 and 105

105 is 30 more than the other angel of 75

answer
measure of the smaller angle is 75

so it's D.75°

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rusak2 [61]

Answer:

D: I think

Step-by-step explanation:

7 0

3 years ago

Read 2 more answers

Write a rule for linear function in the graph (4,3) (3 ,-1)

yaroslaw [1]

Answer:

D) y = 4x - 13

Step-by-step explanation:

Slope: the change in y over the change in x

In a equation in slope-intercept form is in <em>y = mx + d, where m is the slope</em>.

The slope can be found by its definition. As<em> y goes up by 4, x goes up by 1</em>, so the slope is <em>4/1 = 4</em>.

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4 0

4 years ago

X=17-4y<br> y=x-2<br> answer by substitution

sashaice [31]

Answer:

x=5,y=3

Step-by-step explanation:

the first step is to decide whether you want to substitute y and find x, or substitute x and find y.

(it doesn't matter which way you will choose.If you do the math correctly you will get the correct answer,one way or another).

for example, let's substitute y into the first equation:

x=17-4*(x-2)

so now,we will organize the equation:

x+4x=17+8

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x=5

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3 0

4 years ago

The first term of an Ap is - 504 while<br>the sum of its 9 terms is-126 find<br>Sum of its 30 terms

frozen [14]

Answer:

The sum of its 30 terms is 38167.5

Step-by-step explanation:

Given:

The First term in the AP is -504

The Sum of its 9 terms is -126

To Find:

The sum of its 30 terms = ?

Solution:

The sum of n terms of an AP:

$S_n = (\frac{n}{2} ) [ 2 a_1 + ( n - 1 ) d ]$

The sum of 9 terms of an AP:

$S_9 = (\frac{9 }{2} ) [ 2(-504) + ( 9 - 1 )d ]$

$S_9 = (4.5 )[ 2 (-504)+ ( 8 ) d ]$

$(4.5 )(2)(-504) + (4.5) 8 d = - 126$

(-4536) +36d = -126

36 d = -126+4536

36 d= 4410

$d= \frac{4410}{36}$

d = 122.5

The sum of its 30 terms is

$S_{30} = ( \frac{30 }{2 }) [ 2 (-504) + ( 30-1)(122.5) ]$

$S_{30} =(15) [ 2 (-504) + ( 29)(122.5) ]$

$S_{30} = [ 2 (-504)(15) + ( 29)(122.5)(15) ]$

$S_{30} = [ -15120 + 53287.5 ]$

$s_{30} = 38.167.5$

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4 years ago

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Step-by-step explanation:

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4 years ago