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Elenna [48]
3 years ago
9

Could u help me make sure its the right answer i can't get this wrong .

Mathematics
2 answers:
Delicious77 [7]3 years ago
7 0

Answer:

Step-by-step explanation:

Next time just substitute each of the options for x and y one at a time.

A

Black_prince [1.1K]3 years ago
5 0

Answer:

12x + 6y = 102

5x - 6y = 34

17x = 136

x = 8

y = 1

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Can someone please help me on letter b. I am really confused.
Nookie1986 [14]

Answer:

c

Step-by-step explanation:

In the picture there are 6 triangles. Let's call the total amount x. Since 30% = 0.3 we can write 6 = 0.3x so x = 6 / 0.3 = 20. The picture that has 20 triangles is C.

5 0
3 years ago
you notice a hot air balloon descending. The elevation h (in feet) of the balloon is modeled by the function h(x)=-12x+300, wher
Elina [12.6K]

Answer:

200

Step-by-step explanation:

7 0
2 years ago
An altitude is drawn from the vertex of an isosceles triangle, forming a right angle and two congruent triangles. As a result, t
irina1246 [14]

Answer:

63.7 inches

Step-by-step explanation:

half the base is 9 inches, so the equal legs are each

L = √(9² +21²) = 22.8473...

Perimeter  = 2(22.8473) + 18 = 63.6946... ≈ 63.7 inches.

3 0
3 years ago
Angle $eab$ is a right angle, and $be = 9$ units. what is the number of square units in the sum of the areas of the two squares
Alla [95]
Let the measure of side AB be x, then, the measue of side AE is given by

AE=\sqrt{9^2-x^2}.

Now, ABCD is a square of size x, thus the area of square ABCD is given by

Area=x^2

Also, AEFG is a square of size \sqrt{9^2-x^2}, thus, the area of square AEFG is given by

Area=\left(\sqrt{9^2-x^2}\right)^2=9^2-x^2=81-x^2

<span>The sum of the areas of the two squares ABCD and AEFG is given by

x^2+81-x^2=81

Therefore, </span>the number of square units in the sum of the areas of the two squares <span>ABCD and AEFG is 81 square units.</span>
8 0
2 years ago
F(x) = x + 2 g(x) = x – 4 (f g)(x) =
Sauron [17]

Answer:

x² - 2x - 8

Step-by-step explanation:

The notation (f·g)(x) means to multiply the two functions. Use the distributive property to simplify.

(f·g)(x) = (x+2)(x-4) = x² + 2x - 4x - 8 = x² - 2x - 8

4 0
3 years ago
Read 2 more answers
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