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Valentin [98]
3 years ago
15

Brainliest and Five Stars for correct answers

Mathematics
1 answer:
wel3 years ago
3 0
\bf \lim\limits_{x\to 9}~\cfrac{x^2-81}{x-9}\implies \cfrac{\stackrel{\textit{difference of squares}}{x^2-9^2}}{x-9}\implies \cfrac{\underline{(x-9)}(x+9)}{\underline{(x-9)}}
\\\\\\
\lim\limits_{x\to 9}~x+9\implies (9)+9\implies 18
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.25(1.2x3-1.25)+3.45
Anestetic [448]

1.2x3= 3.6

3.6-1.25= 2.35

2.35x.25= 0.5875

0.5875+3.45= 4.0375

Answer is 4.0375

6 0
3 years ago
HELPPP ME ASAPPPP PLEASEEE!!
kaheart [24]

y = 90°

Solution:

The reference image for the answer is attached below.

The sum of opposite interior angles is equal to the exterior angles.

m∠BAC + m∠ACB = 110°

m∠BAC + 70° = 110°

m∠BAC = 110° –  70°

m∠BAC = 40°

m∠BAD + m∠DAC = 40°

x + x = 40°

2x = 40°

Divide by 2 on both sides of the equation.

x = 20°

In triangle DAC,

Sum of all the angles of a triangle = 180°

m∠DAC + m∠ACD + m∠CDA = 180°

20° + 70° + m∠CDA = 180°

90° + m∠CDA = 180°

m∠CDA = 180° – 90°

m∠CDA = 90°

∠CDA and y lies on the straight line. So they form a linear pair.

y + m∠CDA = 180°

y + 90° = 180°

y = 180° – 90°

y = 90°

The value of y is 90°.

7 0
2 years ago
Find the area of the composite figure.
BARSIC [14]

Answer:

The total area is 132 ft squared

Step-by-step explanation:

I found the area of the triangle by doing bh/2 and got 60. I then found the read of the rectangle bu doing bh and got 72z I then added both areas and got 132 as the total area.

7 0
3 years ago
Read 2 more answers
What is the remainder when 4x^3+2x^2-18+38/x-3
Trava [24]

Answer:

The remainder is 2

Step-by-step explanation:

Hope this helps uwu

7 0
3 years ago
Determine if the equation x2 – y = 1 defines y as a function of x. No. At least one input results in two outputs. No. At least o
posledela
Yes. One input results in one output. the last choice is correct. 
every x value will product only one y value.
4 0
3 years ago
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