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Ghella [55]
3 years ago
13

Find the non permissible replacement for a in this expression y-3/y+7

Mathematics
1 answer:
elena-s [515]3 years ago
7 0

Answer:

first 3plus 7 =10 then 10 y is your answer

now you help me

Alexandra makes a pattern she uses 2 square for every 3 triangles  in the pattern , how many triangles  will Alexandra uses if the pattern has 18 square?

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Pavel [41]

Answer:

similar triangles can be used to find the height of a building.

Step-by-step explanation:

3 0
2 years ago
When h has the value 12 calculate 5h - 2
yarga [219]

Answer:

5h - 2

<em>(</em><em>5</em><em>×</em><em>1</em><em>2</em><em>)</em><em>-</em><em>2</em>

<em>6</em><em>0</em><em>-</em><em>2</em>

<em>=</em><em><u>5</u></em><em><u>8</u></em>

7 0
3 years ago
Solve for x. round to the nearest hundredth if necessary.
iris [78.8K]

Answer: x=11.47

Step-by-step explanation:

Given the angle of 55 degrees, you know that the adjacent side is "x" and the length of the hypotenuse is 20.

Therefore, you need to remember the following identity:

cos\alpha=\frac{adjacent}{hypotenuse}

Then, knowing that:

\alpha=55\°\\adjacent=x\\hypotenuse=20

 You need to substitute these values intocos\alpha=\frac{adjacent}{hypotenuse}:

 cos(55\°)=\frac{x}{20}

Now, you can solve for "x":

20*cos(55\°)=x\\x=11.471

Rounded to the nearest hundreth:

x=11.47

6 0
3 years ago
Find the area plzzzzzzxxxzzxxxzzzzzzz
nikitadnepr [17]

Step-by-step explanation:

step 1. break up the shape into 2 triangles and one rectangle

step 2. A = area of triangle 1 (t1) + area of triangle 2 (t2) + area of the rectangle (r)

step 3. t1 = (1/2)bh where b is the base and h is the height. definition of the area of a triangle.

step 4. t1 = (1/2)(3)(2) = 3ft^2.

step 5. t2 = (1/2)(3)(3) = 4.5ft^2.

step 6. r = bh where b is the base and h is the height. definition of the area of a rectangle.

step 7. r = bh = (8)(4) = 32ft^2.

step 8. A = t1 + t2 + r = 3 + 4.5 + 32 = 39.5ft^2.

5 0
3 years ago
Fastest answer gets brainiest !
saveliy_v [14]

Answer:

  • A. 1/16

Step-by-step explanation:

<u>The most repeated value is:</u>

  • (1/4)/4 = 1/16

There are 4 of them.

Correct choice is A

3 0
3 years ago
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