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2 years ago

4 - (-18) = 4 - (-18) =

Mathematics

1 answer:

VashaNatasha [74]2 years ago

8 0

Answer: 22

Step-by-step explanation:

4 - (-18) = 4 + (+ 18) = 22

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I need help solving this problem Solve for X

cluponka [151]

Answer:

x = -7

Step-by-step explanation:

The 2 horizontal lines are parallel as given ion the problem.

The x + 97 angle is congruent to the right angle.

x + 97 = 90

x = -7

4 0

2 years ago

Good answer fast Find the value of y

Radda [10]

Answer: y = 90°

Step-by-step explanation:

55.30786941 = sin-1 (148/180) round to 55.3° angle x

34.69213059 = cos-1 (148/180) . round to 34.7° "angle z" at right

34.7 +55.3 = 90

Sum of All angles of the triangle = 180° 180 -90 = 90

If angle x is 55.7 and angle z is 34.7° Angle y must be 90°

Ratio of inscribed arcs = ratio of chord to diameter

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3 years ago

The formula F=9/5c changes a temperature reading from the Celsius scale C to the Fahrenheit scale F. What is the temperature mea

pogonyaev

Answer: The correct formula for converting C to F is:

F = (9/5)C + 32

30°C = 86°F

Step-by-step explanation:

F = (9/5)C + 32

F = (9/5)(30C) + 32

F = 86°F

7 0

2 years ago

Solve the problem by entering and solving an equation.

geniusboy [140]

Given : A rectangular picture frame has a perimeter of 52 inches. The height of the frame is 12 inches.

To Find : The width of the frame .

Solution : Let us take the width of the frame be x . So , we know the formula to find the perimeter of rectangle as ;

$\boxed{\red{\bf Perimeter_{rectangle}=2(l+b)}}$

Where , l is the length of the rectangle and b is the breadth of the rectangle .

⇒ Perimeter = 2 ( l + b ) .

⇒ 52 in. = 2 ( 12 + x ) in.

⇒ 52 in.= 24in. + 2x .

⇒ 2x =( 52 - 24 ) in

⇒ 2x = 28 in.

⇒ x = 28/2 in.

⇒ x = 14 in.

Hence the width of the rectangle is 14 inches.

5 0

3 years ago

Rewrite square root of -49 -4 in complex number notation please help

SVEN [57.7K]

Note that if $i^2=-1$ than $i=\sqrt{-1}$ ,

Also note that $\sqrt{ab}=\sqrt{a}\sqrt{b}$

So we have,

$\sqrt{-49}=\sqrt{-1}\sqrt{49}=\boxed{7i}$

and,

$\sqrt{-4}=\sqrt{-1}\sqrt{4}=\boxed{2i}$

Hope this helps.

r3t40

4 0

3 years ago