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3 years ago

15 - (45 ÷ (-5 × 9) + 6) ÷ 1^5

Mathematics

1 answer:

expeople1 [14]3 years ago

8 0

Use cymath it explan the math to you I use it for my math

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What does 45 - 4x equal

xxTIMURxx [149]

Let y = 0 to find the x-intercept(s).

0 = 45 − 4x

*Then subtract 45 from both sides*
-45 = -4x

*Next, DIVIDE both sides by -4*

-45
—— = x
-4

*NEXT, realize that TWO NEGATIVES MAKE A POSITIVE *

45. 4
——— = x {FLIP} x=——-
4. 45.

y-Intercept

Let x = 0 to find the y-intercept(s).

y = 45 −4(0)

NEXT, SIMPLIFY:

y=45

7 0

4 years ago

One reading at an Arctic research station showed that the temperature was -35° C. What is this temperature in degrees Fahrenheit

tangare [24]

Answer: $-31\ \°F$

Step-by-step explanation:

Degrees Celsius and Degrees Fahrenheit are defined as units of measurement of temperature.

In order to make the conversion from Degrees Celsius to Degrees Fahrenheit, you need to follow these steps:

Step 1: You must multiply the temperature in degrees Celsius by $\frac{9}{5}$ (or you can multiply it by 1.8).

Step 2: Then you must add 32 to the product obtained.

In this case, according to the information given in the exercise, you know that the reading at an Arctic research station showed that the temperature was $-35\°C$

Therefore, applying the steps indicated before, you get that that temperature in degrees Fahrenheit is:

$T_{(\°F)}=(-35)(\frac{9}{5})+32\\\\T_{(\°F)}=-31\ \°F$

3 0

4 years ago

Evaluate the expression 3^4 ÷ (14 − 5) × 2.

gavmur [86]

Answer:

Step-by-step explanation:

3^4=9*9=81

14-5=9

81/9=9

9*2=18

8 0

3 years ago

Read 2 more answers

La diagonal de un marco de fotos rectangular mide 2 cm más que el lado mayor. Si el perímetro mide 46 cm, ¿cuánto miden los lado

dalvyx [7]

Answer:

The length of rectangular photo frame is 15 cm and the breadth is 8 cm.

Step-by-step explanation:

The question is:

The diagonal of a rectangular photo frame is 2 cm more than the longest side. If the perimeter is 46 cm, how long are the sides of the frame?

Solution:

Let the length of the rectangular photo frame be denoted by x and breadth by y.

It is provided that the diagonal is 2 cm more than the length.

That is:

d = x + 2

The perimeter is 46 cm.

That is:

46 = 2 (x + y)

⇒ x + y = 23

⇒ x = 23 - y

The triangle form by the length, breadth and the diagonal of the rectangle is a right angled triangle, with the diagonal as the hypotenuse, length as perpendicular and breadth as the base.

So, according to the Pythagoras theorem,

d² = x² + y²

(x + 2)² = x² + y²

x² + 4x + 4 = y²

4x + 4 = y²

4 (23 - y) + 4 = y²

92 - 4y + 4 = y²

y² + 4y - 96= 0

Factorize the expression by splitting the middle term as follows:

y² + 4y - 96= 0

y² + 12y - 8y - 96= 0

y (y + 12) - 8 (y + 12) = 0

(y + 12)(y - 8) = 0

Either y = -12 or y = 8.

Since y represents the breadth of a rectangle, it cannot be negative.

Thus, the breadth of rectangular photo frame is 8 cm.

Compute the length as follows:

x = 23 - y

= 23 - 8

= 15

Thus, the length of rectangular photo frame is 15 cm.

6 0

4 years ago

What is the length of the hypotenuse,x,if (20,21,x) is a pythogorean triple?

pickupchik [31]

check the picture below.

3 0

3 years ago