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3 years ago

Plz Help 15 points and brainliest

Mathematics

2 answers:

pickupchik [31]3 years ago

7 0

Answer:

it is |-322.25| > |-241.75, its the last option

Step-by-step explanation:

diamong [38]3 years ago

4 0

Answer:

–322.25 > –241.75

Step-by-step explanation:

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The graph of the equation x^2+6x+y^2-16y=-9 is a circle. Choose True or False for each statement

BigorU [14]

Answer:

see the explanation

Step-by-step explanation:

we have

$x^2+6x+y^2-16y=-9$

Convert the equation of the circle in center radius form

Group terms that contain the same variable

$(x^2+6x)+(y^2-16y)=-9$

Complete the square twice. Remember to balance the equation by adding the same constants to each side

$(x^2+6x+9)+(y^2-16y+64)=-9+9+64$

$(x^2+6x+9)+(y^2-16y+64)=64$

Rewrite as perfect squares

$(x+3)^2+(y-8)^2=8^2$

The center of the circle is (-3,8)

The radius of the circle is 8 units

Verify each statement

A. The center of the circle is (3,-8).

False

The center of the circle is (-3,8)

B. The circle is tangent to the x-axis

True

The circle is tangent to x=5 and x=-11 and is tangent to y=0 and y=16

Remember that y=0 is the x-axis

C. The circle has a radius of 64

False

The radius of the circle is 8 units

7 0

3 years ago

In wxy,wy is congruent to xy the perimeter of wxy is 76 inches,how many inches is wx

hoa [83]

If wy is congruent to xy, then from w to y is equal to the distance between x and y. According to the figure, both distances are 3m-4 each. Therefore the perimeter is the sum of the three sides, namely:

$p = m + (3m-4) + (3m-4)=76in$

Solving for m:
$m + (3m-4) + (3m-4)=76$
$7m-8=76$
$7m=84$
$m=12$

Finally:
wx is the distance $m=12in$

5 0

4 years ago

Read 2 more answers

Write in summation notation.

Ivahew [28]

If that is -2+1+4+13 I think it should be 16

3 0

3 years ago

julian want to buy a new ipod that costs $220. he goes into a store and sees that it is on sale and has a 35% discount. he will

tigry1 [53]

Answer:

The final cost for him is;

$\text{ \$154.44}$

Explanation:

Given that the ipod costs $220;

$C=\text{ \$220}$

The store gives a 35% discount, which means he will only pay 65% of the original cost;

$100\text{\%- 35\% = 65\%}$

The store price is;

$\begin{gathered} P=\text{ 65\% of \$220} \\ P=\frac{65}{100}\times\text{ \$220} \\ P=\text{ \$143} \end{gathered}$

Also he will need to pay additional 8% sales tax on the discounted price P;

$\begin{gathered} t=8\text{\% of P} \\ t=8\text{\% of \$143} \\ t=\frac{8}{100}\times\text{ \$143} \\ t=\text{ \$11.44} \end{gathered}$

The final cost he need to pay is the sum of the discounted price and the sales tax;

$\begin{gathered} F=P+t \\ F=\text{ \$143 + \$11.44} \\ F=\text{ \$154.44} \end{gathered}$

Therefore, the final cost for him is;

$\text{ \$154.44}$

5 0

2 years ago

The Andersons took the family dog to the vet. The dog weighed 35.45 pounds. What is the decimal rounded rounded to the nearest t

Sladkaya [172]

Answer: rounded to the nearest tenth is 35.50, to the nearest whole number is 35.00, and the the nearest ten is 40. 35 is the closest to the actual weight.

Step-by-step explanation:

8 0

3 years ago