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3 years ago

If someone can help me out :D!

Mathematics

2 answers:

Nataliya [291]3 years ago

8 0

Hello

Answer:

28.378

Explanation:

krok68 [10]3 years ago

8 0

Your answer is 28.378 hope this helped

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Select the correct answer. Which point lies on a circle with a radius of 5 units and center at P(6, 1)? A. Q(1, 11) B. R(2, 4) C

jasenka [17]

Answer:

T(9,-2)

Step-by-step explanation:

The circle has radius 5 units and center P(6,1).

The equation of this circle is

$(x-6)^2+(y-1)^2=5^2$

$(x-6)^2+(y-1)^2=25$

If Q(1,11) lies on this circle, then it must satisfy its equation.

$(1-6)^2+(11-1)^2=25$

$(-5)^2+(10)^2=25$

$25+100=25$ , this statement is false.

If R(2,4) lies on this circle, then it must satisfy its equation.

$(2-6)^2+(4-1)^2=25$

$(-4)^2+(3)^2=25$

$16+9=25$ , this statement is false.

If S(4,-4) lies on this circle, then it must satisfy its equation.

$(4-6)^2+(-4-1)^2=25$

$(-2)^2+(-5)^2=25$

$4+25=25$ , this statement is false.

If T(9,-2) lies on this circle, then it must satisfy its equation.

$(9-6)^2+(-2-1)^2=25$

$(4)^2+(-3)^2=25$

$16+9=25$ , this statement is TRUE.

The correct answer is D

6 0

3 years ago

Read 2 more answers

Multiply. (x-6)(4x + 3)

d1i1m1o1n [39]

Answer:

Fully simplified it equals 4x^2 -21x -18

Explanation:

-You need to distribute the x to all of the terms in the second binomial and you also need to distribute -6 to all the terms in the second binommial giving you 4x^2 +3x - 24 -18

-You combine like terms to simplify and your answer is 4x^2 -21x -18

7 0

3 years ago

The radius of the circle above is 17 cm. What is the circumference of the circle? (Use pi = 3.14.)

Neko [114]

Answer:

D. 106.76 cm

Step-by-step explanation:

We want to find the circumference of the circle

The formula is

C=2 * pi *r

= 2 * (3.14) * 17

= 34*3.14

= 106.76 cm

8 0

4 years ago

A) A rectangular prism 10 m 10 m 50 m Volume: Surface Area:

Rama09 [41]

Answer:

$\huge\boxed{V=5,000m^3}\\\boxed{SA=2,200m^2}$

Step-by-step explanation:

The formula of a volume of a rectangular prism $a\times b\times c$ :

$V=abc$

The formula of a surface area of a rectangular prism $a\times b\times c$ :

$SA=2(ab+ac+bc)$

We have

$a=10m;\ b=10m;\ c=50m$

Subtitute:

$V=(10)(10)(50)=5,000(m^3)\\\\SA=2\bigg((10)(10)+(10)(50)+(10)(50)\bigg)\\=2(100+500+500)=2(1100)=2,200(m^2)$

3 0

3 years ago

20 POINTS PLEASE HELP Write an equation for a trend line and predict the value when x is 15

stich3 [128]

Attached is what you can do on excel.

Add the values as presented on the image. Select the values and then go t the menu "Insert" and look for "Charts" and then "Insert scatter chart". After this, select one of the dots from the graph and then press the right button of the mouse and select "add trendline". Now you have a trend line. Format the trendline selecting the option "Display Equation on chart" (and also if you want "Display R-squared value on chart"). Now you have the equation and you can easily predict the value when X is 15, you just need to substitute on the equation the X by the 15:
y = 4.0933Χ + 21.5 <=> y = 82.8995

7 0

3 years ago