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3 years ago

So the value of x must be _____

Mathematics

2 answers:

sleet_krkn [62]3 years ago

6 0

Answer:

Step-by-step explanation:

a straight angle is 180

40+54+x=180

94+x=180

x=180-94

x=86!

Wewaii [24]3 years ago

5 0

The three angles making up A are supplementary.

54+40+x=180
94+x=180
x=86
Hope that helps!

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If c is cents (¢) then she would receive $19.74 or in cents that would be 1974¢

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3 years ago

The local baseball team won the national championship last year. At the start of the baseball season, shirts signed by the team

LenKa [72]

Answer:

Step-by-step explanation:

Multiplier: -175/3 Decrease: 23⅓ %

Step-by-step explanation: 75 = 250 - 3(d) d = -175/3 Y = 250 - (175/3)m

Where m is the no.

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3 years ago

Ricardo is 3 years older than Courtney. In 5 years the sum of their ages will be 81. How old is Ricardo now?

kondaur [170]

Ricardo will be cool is how and he is smart

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3 years ago

Gina has a $50 gift card to a bagel shop. Each Friday, she purchases breakfast for $6. She created a graph to represent the amou

Ghella [55]

Answer:

No, because the amount of money on her gift card should decrease each week.

Step-by-step explanation:

Well, the graph shows that the slope is increasing, if you got $50.00 and spend $6.00 each Friday, wouldn't that be decrease and not increase? This is why we eliminate the yes options. Lastly, of course, they should not start at the origin as they started at $50.00.

Proof I got it correct:

4 0

3 years ago

The equation of a circle is (x + 3)2 + (y – 5)2 = 81. Determine the coordinates of the center of the circle and the length of th

Nataly_w [17]

Answer:

The center of the circle is (-3 , 5) and the length of the radius is 9 units

Step-by-step explanation:

* Lets revise the standard form of the equation of the circle

- The center-radius form of the circle equation is in the format

(x – h)² + (y – k)² = r², where the center is the point (h, k) and

the radius is r.

- This form of the equation is helpful, because you can easily find

the center and the radius.

* Now lets solve the problem

- The equation is (x + 3)² + (y - 5)² = 81

- By comparing the two equations

∵ (x – h)² + (y – k)² = r² and (x + 3)² + (y - 5)² = 81

# x - h = x + 3

∴ -h = 3 ⇒ divide both sides by -1

∴ h = -3

# y - k = y - 5

∴ k = 5

# h and k are the coordinates of the center of the circle

∴ The center of the circle is (-3 , 5)

# r² = 81 ⇒ take √ for both sides

∴ r = 9

∴ The length of the radius = 9 units

* The center of the circle is (-3 , 5) and the length of the radius is 9 units

3 0

2 years ago