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allsm [11]
3 years ago
11

Evaluate 3x + 5 when x = 8

Mathematics
2 answers:
Allushta [10]3 years ago
5 0

Answer:

29

Step-by-step explanation:

3x8 = 24 + 5 is 29

SSSSS [86.1K]3 years ago
5 0
Substitute the value of the variable into the equation and simplify

Answer: 29
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13. Given that y varies as x^2 and that y = 36 when x=3, find:
saw5 [17]

Answer:

K=4

Y=16

X=4

Step-by-step explanation:

y = kx {}^{2}  \\ finding \: k \: when \:  y= 36 \: and \: x = 3 \\ 36 = k(3) {}^{2}  \\ 36 = 9k \\ dividing \: through \: by \: 9 \\  \frac{36}{9}  =  \frac{9k}{9}  \\ 4 = k \\ k = 4 \\ findnig \: y \: when \: x = 2 \\ y = 4(2) {}^{2}  \\ y = 4 \times 4 = 16 \\ finding \: x \: when \: y = 64 \\ 64 = 4 \times x  \\ 64 = 4x \\ dividing \: through \: by \: 4 \\  \frac{64}{4}  =  \frac{4x {}^{2} }{4}   \\ 16 = x {}^{2}  \\ square \: root \: bothsides \\  \sqrt{16}  = x {}^{2}  \\ 4 =  x \\ x = 4

3 0
2 years ago
Finding angle measures between intersecting lines
Orlov [11]

Answer:

x = 13⁰

Step-by-step explanation:

Since AGC is a right angle, AGD is also a right angle

(Sum of angles of straight line is 180, 180 - 90 =90)

Now, DGF + 77 = 90

or, DGF = 90 - 77

DGF = 13

Now we can say that DGF = x because opposite angles formed by intersecting lines are always equal.

So, x = 13⁰

3 0
3 years ago
Read 2 more answers
If you have to apply 30 n of force on a crowbar to lift an object that weighs 330 n, what is the mechanical advantage of the cro
shutvik [7]
<span>The answer is: 2. 11 Crowbar is a Class A lever Therefore the mechanical advantage of the crowbar can be given by either: MA = Output distance/Input distance OR MA = Output force/Input force Since, the question gives only the force, we can use the second formula. MA = Output force/ Input Force = 330 N / 30 N = 11</span>
5 0
3 years ago
I have 5 minutes someone please tell me what to graph ! <br> (Slope problem)
svetoff [14.1K]
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3 0
3 years ago
Mr. Tompkin's art class painted a mural on one wall of the classroom.
ddd [48]

Answer:

Most: Black 5/6

Least: Red 1/8

Step-by-step explanation:

this is the fraction, least to greatest:

1/8 < 1/4 < 2/5 < 1/2 < 7/12< 5/6

8 0
3 years ago
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