3 years ago

Help - I don’t understand this please help

Mathematics

1 answer:

expeople1 [14]3 years ago

5 0

Step-by-step explanation:

have you taken the picture from the PC which website is this is tell me

You might be interested in

Solve for y: 7x-2y-6=0

Leviafan [203]

Solve for y by simplifying both sides of the equation, then isolating the variable.
y = 7x/2 - 3

7 0

3 years ago

The depth y (in inches) of a lake after x years is represented by the equation y=0.2x+42 . How much does the depth of the lake i

blagie [28]

Answer:

Step-by-step explanation:

Step one:

given data

we are told that the expression for the depth of a lake after x years is given by

$y=0.2x+42$

Required

The value of y when x= 4

Step two:

substitute the value of x in the expression to get y

$y=0.2(4)+42\\\\y=0.8+42\\\\y=42.8\\\\$

<em><u>After 4 years the depth will increase by 42.8 in</u></em>

7 0

3 years ago

Camille is sixty-six inches tall. This is twenty inches less than two times Mindy’s height. How tall is Mindy?

Helga [31]

23 inches
x = mindy's height
2x - 20 = 66
-20 -20
2x = 46
/2 /2
x = 23

7 0

4 years ago

PLEASE HURRY!!! AB = 20 cm, m∠A = 30° , and $m∠C = 45° . Express the number of centimeters in the length of BC in simplest radic

MrRissso [65]

Using the Sine Rule:-

20 /sin 45 = BC / sin 30

BC = 20 sin 30 / sin45

= 20 * 1/2 / 1 / sqrt2
= 20 * 1/2 * sqrt2
= 10 sqrt2 answer

3 0

3 years ago

PLEASE HELP ASAP!!! CORRECT ANSWER ONLY PLEASE!!!

lianna [129]

Answer: 1.61

==================================================

Work Shown:

tan(angle) = opposite/adjacent

tan(J) = IK/IJ

tan(J) = 45/28

tan(J) = 1.60714 approximately

tan(J) = 1.61

6 0

3 years ago