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Cerrena [4.2K]
3 years ago
14

Solve for x PLEASE HELP DUE TODAY!!!

Mathematics
2 answers:
harkovskaia [24]3 years ago
7 0

Answer:

x = 4

Step-by-step explanation:

When a secant and a tangent are drawn to a circle from a point outside the circle, the lengths are related this way:

The square of the length of the tangent equals the product of the length of the secant and the length of the segment of the secant outside the circle.

(x + 2)² = x(x + 5)

x² + 4x + 4 = x² + 5x

x = 4

DiKsa [7]3 years ago
3 0

Answer:

x = 4

Step-by-step explanation:

By intersecting tangent and secant theorem:

{(x + 2)}^{2}  = x(x + 5) \\  \\  {x}^{2}  + 4x + 4 =  {x}^{2}  + 5x \\  \\ 4x + 4 = 5x \\  \\ 4 = 5x - 4x \\  \\ 4 = x \\  \\ x = 4

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The speed of sound in air is 340 m/s. How far , in meters, would a sound of wave travel on 7 seconds?​
Rasek [7]

Answer:

2 380m

Step-by-step explanation:

very simple just multiply 7×340

4 0
2 years ago
Stacey wishes to make a hamburger which is lower in fat without having to give up the great taste. She purchases 5 pounds of gro
STALIN [3.7K]

Answer:

%P = 8%

the percentage of fat in the mixture is 8%

Step-by-step explanation:

Given;

The percentage of fat in the mixture is;

%P = total mass of fat in mixture/total mass of mixture × 100%

%P = F/T × 100% ….....1

Mass of fat in mixture is;

She purchases 5 pounds of ground beef which is 15% fat

F1 = 15% of 5 pounds = 0.15×5 pounds

F1 = 0.75 pound

and combines it with 7 pounds of ground turkey which is only 3% fat

F2 = 3% of 7 pounds = 0.03 × 7

F2 = 0.21 pound

Total mass F = F1 + F2

F = 0.75+0.21

F = 0.96 pound

Total mass of mixture T = 5 + 7 pounds

T = 12 pounds.

From equation 1,

%P = F/T × 100%

%P = 0.96/12 × 100%

%P = 0.08×100%

%P = 8%

the percentage of fat in the mixture is 8%

5 0
3 years ago
Help me<br> Thanks if you answered
JulsSmile [24]

Answer:

number 21: 5 ten thousands, 7 hundreds, <em><u>7</u></em><em><u> </u></em>tens and 7 ones

Step-by-step explanation:

7 tens = 70

7 ones = 7

which equals 77, if the number is 50,777, you can see the last two digits in the tens and ones place are 7 and 7.

4 0
4 years ago
A ABC = ADEF. What is the measure of AB?
Mila [183]
I don’t know but Good luck
6 0
2 years ago
what is the answer for 1/3x+y=4 and if you use big ideas math program and you got the right answer lemme know
erica [24]

Answer:

x=-3y+12

Step-by-step explanation:

Yes.

8 0
3 years ago
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