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makvit [3.9K]
3 years ago
11

Help me please, and thank u

Mathematics
1 answer:
Yuki888 [10]3 years ago
4 0

Answer:

Step-by-step explanation:

Check the attached diagram... since they are parallel lines, those angles should be equal. now as per the theorem of opposite angles, (3x + 10)° should be equal to 70° .

(3x + 10)° = 70°

3x = 60°

x = 20

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X &lt;-3 or x &gt; 2<br> I don’t get it, please help
salantis [7]

Answer:

On a number line, this would mean the dots start at -3 and go left to infinity. it would mean the other dot starts a 2 and goes right to infinity.

8 0
3 years ago
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The temperature of the water in Emily's fish tank was 78 on Sunday the water temperature changed by -3 on Monday and then 3 on T
Scilla [17]

Answer:

change was 0

temp on tuesday was 78

Step-by-step explanation:

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3 years ago
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The length of a rectangle is 12 ft. longer than twice its width. If the total length of a width and a length is 44 ft., what is
REY [17]

Width of the rectangle is 10.67 ft

<u>Step-by-step explanation:</u>

Step 1:

Let the width of the rectangle be x. Then length = 2x + 12

Given width + length = 44ft ⇒ x + 2x + 12 = 44

⇒ 44 = 3x + 12

⇒ 32 = 3x

⇒ x = 32/3 = 10.67

Width of the rectangle = 10.67 ft

7 0
4 years ago
Prove tan3A= (cos(2A)-cos(4A))/ (sin(4A)- Sin(2A)) ...?
aivan3 [116]
The solution to the problem is as follows:

<span>cos2A - cos4A = -2 sin(6A/2).sin(-2A/2) = +2 sin(3A).sinA
 
and
 
sin4A - sin2A = 2 cos(6A/2).sin(2A/2) = 2 cos(3A).sinA

Hence RHS = (cos(2A)-cos(4A))/ (sin(4A)- Sin(2A)) = sin 3A / cos 3A = tan 3A = LHS
</span>

I hope my answer has come to your help. Thank you for posting your question here in Brainly. We hope to answer more of your questions and inquiries soon. Have a nice day ahead!
5 0
4 years ago
The sequence below represents Marisa’s fine at the library for each day that she has an overdue book: $0.50, $0.65, $0.80, $0.95
podryga [215]

Answer:

<h2>f(n) = 0.15n + 0.35</h2>

Step-by-step explanation:

The sequence of the problem above is an arithmetic sequence

For an nth term in an arithmetic sequence

F(n) = a + ( n - 1)d

where a is the first term

n is the number of terms

d is the common difference

To find the equation first find the common difference

0.65 - 0.5 = 0.15 or 0.80 - 0.65 = 0.15

The first term is 0.5

Substitute the values into the above formula

That's

f(n) = 0.5 + (n - 1)0.15

f(n) = 0.5 + 0.15n - 0.15

The final answer is

<h3>f(n) = 0.15n + 0.35</h3>

Hope this helps you

4 0
4 years ago
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