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Answer:

The mistakes were on points C and D

Step-by-step explanation:

Point C was graphed on (5,8) when it's supposed to be plotted on (5,7). Point D was on (-3,-4) but was supposed to be on (-4,-3?

Answer:

The mistakes are Point C and D

Answer:

2rootover5

Step-by-step explanation:

just use pythagoraus theorem

Answer:

x ≈ 4.5

Step-by-step explanation:

First, use the Pythagorean theorem to find the missing variable with side 8 and hypotenuse 10.

a² + b² = c²

a² + 8² = 10²

Square the variables

a² + 64 = 100

Subtract 64 from both sides.

a² = 36

Take the square root of both sides.

a = 6.

Now we can find the other triangle and we now know that one side is 4 and the hypotenuse is 6.

a² + b² = c²

x² + 4² = 6²

Square the variables.

x² + 16 = 36

Subtract 16 from both sides.

x² = 20

Square root. (refresh if you don't see this part.)

[tex]x=\sqrt{20}\\\text{Factor out a 2.}\\x=2\sqrt{5}[/tex]

Converted to decimal to the nearest tenth, the answer is

x = 4.5.

Now let's prove it.

[tex]a^2+b^2=c^2\\\text{Substitute variables.}\\(2\sqrt{5})^2+4^2=6^2\\\text{Factor the 2 in.}\\(\sqrt{20})^2+4^2=6^2\\\text{Square the variables.}\\20+16=36\\\text{Add.}\\36=36[/tex]

Answer:

B

Step-by-step explanation:

2/9th of the money does to netball

2/9 of 1800 is 400

Answer:b

Step-by-step explanation:

Answer:

(a) O+ to A+

[tex]O+:A+=90:45[/tex]

[tex]O+:A+=18:9[/tex]

[tex]O+:A+=2:1[/tex]

(b) AB- : AB+

[tex]AB-:AB+ = 6:4[/tex]

[tex]AB-:AB+ = 3:2[/tex]

[tex]AB-:AB+ = 12:8[/tex]

(c): B+ to total

[tex]B+ : Total = 20 : 195[/tex]

[tex]B+ : Total = 4 : 39[/tex]

[tex]B+ : Total = 40 : 390[/tex]

Step-by-step explanation:

Given

[tex]A+ = 45[/tex]       [tex]B+ = 20[/tex]        [tex]AB+ =6[/tex]        [tex]O+=90[/tex]

[tex]A-=21[/tex]       [tex]B-=0[/tex]          [tex]AB-=4[/tex]          [tex]O-=9[/tex]

[tex]Total = 195[/tex]

See attachment

Required

Solving (a): O+ to A+

We have:

[tex]A+ = 45[/tex]

[tex]O+=90[/tex]

So, the ratio is:

[tex]O+:A+=90:45[/tex] ---- first comparison

Divide by 5

[tex]O+:A+=90/5:45/5[/tex]

[tex]O+:A+=18:9[/tex] ---- Second comparison

Divide by 45

[tex]O+:A+=90/45:45/45[/tex]

[tex]O+:A+=2:1[/tex] ---- Third comparison

Solving (b): AB- to AB+

We have:

[tex]AB+ =6[/tex]

[tex]AB-=4[/tex]

So, the ratio is:

[tex]AB-:AB+ = 6:4[/tex] ---- first comparison

Divide by 2

[tex]AB-:AB+ = 6/2:4/2[/tex]

[tex]AB-:AB+ = 3:2[/tex] ---- Second comparison

Multiply by 2

[tex]AB-:AB+ = 6*2:4*2[/tex]

[tex]AB-:AB+ = 12:8[/tex] ---- Third comparison

Solving (c): B+ to total

We have:

[tex]B+ = 20[/tex]

[tex]Total = 195[/tex]

So, the ratio is:

[tex]B+ : Total = 20 : 195[/tex] ---- first comparison

Divide by 5

[tex]B+ : Total = 20/5 : 195/5[/tex]

[tex]B+ : Total = 4 : 39[/tex] ---- Second comparison

Multiply by 2

[tex]B+ : Total = 20*2 : 195*2[/tex]

[tex]B+ : Total = 40 : 390[/tex] ---- Third comparison

Answer: [tex]c+3m[/tex]

Step-by-step explanation:

Given

A telephone call costs c cents for first 3 minutes and m cents for each additional minute.

Any call beyond 3 minutes costs

[tex]\Rightarrow c+mt[/tex]

where t is the minutes spent beyond 3 minutes

For 6 minutes , t is 3

thus, it can be written

[tex]\Rightarrow c+3m[/tex]

Answer:

It is a number with 6 whole numbers and 2 decimals, Its a Hundred thousand number

Step-by-step explanation:

Answer:

Step-by-step explanation:

Answer:

89°

Step-by-step explanation:

By inscribed angle theorem:

[tex]m\angle ZXY =\frac{1}{2} \times 178\degree \\ \\ m\angle ZXY =89\degree [/tex]

Answer:

Step-by-step explanation: 19

Answer:

20 use Pythagorean theorem

Step-by-step explanation:

Answer:

12.25 cm²

Step-by-step explanation:

(3.5 cm)² = 12.25 cm²

Answer:

5x - 3

Step-by-step explanation:

Add like terms: (4x + x) + (-6 + 3) = 5x - 3

Answer:

3x-3

Step-by-step explanation:

combine like terms, 4x-x=3x and -6+3=-3

Answer:

V≈2.14×106

Step-by-step explanation:

i looked up volume of a cylinder, do the same.

Answer:

18

Step-by-step explanation:

So lets go voer what we know:

There are 6 pieces of ribbon.

Each piece of ribbon is 1 yard long.

We need 1/3 of each ribbon(1/3 yard).

To find this, lets take our 6 pieces of ribbbon, and break them into 3 seperate pieces.

This is because we need ribbons that are 1/3 of a yard. 3 ribbons would make up a single yard.

So:

The 6 yards of ribbon x 3 ribbons that make up 1 yard

6*3

=

18

I hope this makes more sense, and helps you understand better. I can try to explain in a different way if this still doesn't make sense.

I hope this helps! :)

9514 1404 393

Answer:

  x = 2

Step-by-step explanation:

The square of the tangent is equal to the product of the secant lengths to the near and far circle intersections.

  (x +4)² = (2x -1)(2x -1 +9)

  0 = (2x -1)(2x +8) -(x +4)² = (4x² +14x -8) -(x² +8x +16)

  0 = 3x² +6x -24 = 3(x² +2x -8) = 3(x +4)(x -2)

This has solutions x = -4 and x = 2. Only the latter works in this geometry.

  x = 2

Answer:

D

Step-by-step explanation:

Since the side length of the square is (2x+5), and squares have equal sides, then you have to do (2x+5)(2x+5). You would get 4x^2+20x+25. That means the answer is D.

Hope this helped!! :D

Answer:

8/3

Step-by-step explanation:

We need to find the slope of the line that passes through points , (5,1) and (2,-7) . We can find the slope as ,

=> m = y₁ - y₂/ x ₁ - x ₂

=> m = -7 - 1 / 2 - 5

=> m = -8/-3

=> m = 8/3

Answer:

35

Step-by-step explanation:

Trust me. The two triangles are equivalent, so 90+55=145

180-145=35

Answer:

D.

(DNE)

Step-by-step explanation:

when you plug in 1 to the denominator, 1 minus 1 becomes 0. a fraction with 0 as the denominator does not exist.

The limit of the function f(x)=[tex]x^{3}-1[/tex]/x-1 as x approaches 1 is 3.

Limit is the value that a function approaches as the value of variable approaches some value. They are essential to calculas and mathematical analysis and are use to define continuity , derivatives and integrals. It can change value of function at different values of x.

We have been given a function f(x)=[tex]x^{3}-1[/tex]/x-1 and we have to find the limit of function.

F(x)=[tex]x^{3} -1[/tex] /(x-1) [[tex]x^{3} -y^{3} =x^{2} +y^{2} +xy[/tex]]

[tex]\lim_{x \to \0}x^{3}-1/x-1[/tex]

[tex]\lim_{x \to \0} (x-1)(x^{2} +1+x)[/tex]/x-1

[tex]\lim_{x \to \0} x^{2} +x+1[/tex]

change limit by putting x=1-h

[tex]\lim_{h \to \0} (1-h)^{2} +1+1-h[/tex]

Put the value of h=0.

=1+1+1

=3

Hence the limit of the function [tex]x^{3}-1/x-1[/tex] is 3.

Learn more about limits at https://brainly.com/question/27517662

#SPJ2

Answer:

The sum of all angles should be 180°

Step-by-step explanation:

Sum of all angles in a triangle = 180°

115° + 39° = 154°

180° - 154° = 26°

The student found 206°, lets add 206° to 154° and see what we get.

206° + 154° = 360°

Prediction : The student may have forgotten that the sum of all angles in a triangle equals 180° and not 360°

Answer: The sum of all angles should be 180°

If my answer is incorrect, pls correct me!

If you like my answer and explanation, mark me as brainliest!

-Chetan K

Answer:

it looks pretty nice

Step-by-step explanation:

Answer:

The center of this circle is (5, -4) and the radius is 1.

Step-by-step explanation:

First regroup these terms according to x and y :

x^2 - 10x + y^2 + 8y = -40

Next, complete the square for x^2 - 10x:  x^2 - 10x + 5^2 - 5^2.

and the same for y^2 + 8y:  y^2 + 8y + 16 - 16

Substituting these results into x^2 - 10x + y^2 + 8y = -40, we get:

x^2 - 10x + 5^2 - 5^2 y^2 + 8y + 16 - 16 = -40.

Next, rewrite x^2 - 10x + 25 and y^2 + 8y + 16 as squares of binomials:

Then x^2 - 10x + 5^2 - 5^2 y^2 + 8y + 16 - 16 = -40 becomes:

(x - 5)^2 + (y + 4)^2 - 25 - 16 = -40, or:

(x - 5)^2 + (y + 4)^2 = 1

This equation has the form (x - h)^2 + (y - k)^2 = r^2, where (h, k) is the center and r is the radius.  Matching like terms, we get h = 5, k = -4 and r = 1.

The center of this circle is (5, -4) and the radius is 1.

Answer:

Center (5,-4) Radius = 1

Step-by-step explanation:

Put it in the form of the standard circle equation after dividing everything by 2. (-10x/2=-5x) (8y/2=4y) Since the radius wasn't given, it's just going to be a 1.

(x-5)^2+y(-(-4))^2 = 1^2

Hence, center (5, -4) and radius 1.

Answer:

A percentage or percent for short is a fraction; a fraction that always has the denominator as 100. Because the denominator of a percent is always a 100, no matter what the numerator is, we replace 100 with the percent symbol % after the number. By definition, for any number x, x% = x100.

Step-by-step explanation:

Answer:

r his

Step-by-step explanation:rfrfrefeffrefeferfeferfe