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3 years ago

20 points! Please help me!

Mathematics

2 answers:

Alika [10]3 years ago

6 0

answer

4 x=60

5 x=10

6 x=99

ankoles [38]3 years ago

5 0

hi im just gonna answer for the 20 points

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Amanda was given three numbers: 8,

Firdavs [7]

Answer:

Yeah, She can.

Step-by-step explanation:

Simply using 8/5

5 0

3 years ago

Find the value of x.

UNO [17]

Answer:

x = 20

Step-by-step explanation:

Intersecting Chords Theorem: ab = cd

Step 1: Label our variables

a = x

b = x - 11

c = x - 8

d = x - 5

Step 2: Plug into theorem

x(x - 11) = (x - 5)(x - 8)

Step 3: Solve for x

x² - 11x = x² - 8x - 5x + 40

x² - 11x = x² - 13x + 40

-11x = -13x + 40

2x = 40

x = 20

5 0

3 years ago

Read 2 more answers

Someone help me with this ples with steps

SSSSS [86.1K]

Answer:

$x=\frac{21}{4}$

$y=\frac{21}{2}$

Step-by-step explanation:

equation (1): $\frac{1}{2} (2x+y)=\frac{21}{2}$

equation (2): y=2x

solve the system by substitution

step1: sub (2x) for y in equation 1:

$\frac{1}{2} (2x+y)=\frac{21}{2}$

$\frac{1}{2} (2x+2x)=\frac{21}{2}$

step2: simplify the expression:

$\frac{1}{2} (4x)=\frac{21}{2}$

$2x=\frac{21}{2}$

(divide by 2 for both sides)

$x=\frac{21}{4}$

To find the value for y sub 21/4 for x in equation 2:

y=2x

y=2×(21/4)

$y=\frac{21}{2}$

4 0

3 years ago

How do I get the answer

Ronch [10]

Answer:

Step-by-step explanation:

$- |3a + \sqrt{b} |$

By putting the values of a = -4 , b = 9,

$= - |3 \times ( -4) + \sqrt{9} |$

$= - | - 12 + 3|$

$= - | - 9|$

= -(9)

= -9 (Ans)

4 0

3 years ago

Point C is located at (1, 2) and point D is located at (−4, −2). Find the x value for the point that is 1 over 4 the distance fr

stellarik [79]

Answer:

-0.25

Step-by-step explanation:

Coordinates of C = $(x_{1} ,y_{1} )=(1,2)$

Coordinates of D = $(x_{2} ,y_{2} )=(-4,-2)$

Let Coordinates of A= (x,y)

Since A point is located 1/4 the distance from C to D

So the remaining distance from point A to D is 3/4

Thus the ratio of CA : AD = m:n=1:3

Now to find points of A we will use section formula i.e.

$x=\frac{mx_{2}+nx_{1}}{m+n}$

$y=\frac{my_{2}+ny_{1}}{m+n}$

Substituting the values:

$x=\frac{1*-4+3*1}{1+3}$

$x=\frac{-1}{4}$

$x=-0.25$

Thus Find the x value for the point that is 1 over 4 the distance from point C to point D is -0.25

Hence option a is correct

3 0

3 years ago

Read 2 more answers