How did they get 21.6?

Answer:

hey. could you please post a pic of the full question socwe may help you.

Answer:

hey please post the full question or the pic of question

Answer:

∠ 2 = 104°

Step-by-step explanation:

- 8x - 48 = 9x + 275               [ alternate angles are equal ]

-8x - 9x = 275 + 48

-17x = 323

x = -19  

9x + 275 = 9 × -19 + 275

             = - 171 + 275

             = 104°

∠ 2 = ( 9x + 275 )                                     [vertically opposite angles ]

∠ 2 = 104°

Answer:

4:1

Step-by-step explanation:

We know 1/5 of the marbles are red.

There are 10 marbles.

1/5 is also 2/10, so:

2 of the 10 marbles are red.

To find the blue marbles, lets subtract the red marbles from the total marbles:

10-2=8

So 8 of the marbles are blue.

This is a ratio of 8 blue to 2 red marbles.

Or

4 blue to 1 red marbles.

This can be shown as:

4 : 1

Hope this helps!

Answer:

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

Step-by-step explanation:

The equation of a circle is of the form

(x-h)^2 + (y-k)^2 = r^2

where (h,k) is the center and r is the radius

(x- 2)^2 + (y-6)^2 = 4^2

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

Answer:

[tex]area = length \times width \\ 9 = (x + 3)(x + 2) \\ {x}^{2} + 2x + 3x + 6 = 9 \\ {x}^{2} + 5x + 6 = 9 \\ {x}^{2} + 5x + (6 - 9) = 0 \\ {x}^{2} + 5x =3[/tex]

Answer:

Quadrant  II

Step-by-step explanation:

Sin is positive in Quad I and II

Cos is negative in  Quad II and II

Therefor ∅ is in Quadrant  II

Answer:

Angle 3 and 4 are supplementary angles.

The equation (3x+4) + (2x+11) = 180 can be used to solve for x.

m 5 = 77

Step-by-step explanation:

[tex]\longrightarrow{\green{ x\:=\:12}}[/tex] 

[tex]\large\mathfrak{{\pmb{\underline{\red{Step-by-step\:explanation}}{\red{:}}}}}[/tex]

[tex](x - 9) \frac{2}{3} = 2[/tex]

[tex]➺ \: (x - 9) = 2 \times \frac{3}{2} [/tex]

[tex]➺ \: x = 3 + 9[/tex]

[tex]➺ \: x = 12[/tex]

Therefore, the value of [tex]x[/tex] is 12.

[tex]\large\mathfrak{{\pmb{\underline{\blue{To\:verify}}{\blue{:}}}}}[/tex]

[tex](x - 9) \frac{2}{ 3} = 2[/tex]

[tex]➺ \: (12 - 9) \frac{2}{3} = 2[/tex]

[tex]➺ \: 3 \times \frac{2}{3} = 2[/tex]

[tex]➺ \: 2 = 2[/tex]

[tex]➺ \: L.H.S.=R. H. S[/tex]

Hence verified.

[tex]\huge\bf\purple{*Mystique 35♡༉}[/tex]

Answer:

y = 7/2 x+16

Step-by-step explanation:

The equation for a line is y = mx+b where m is the slope and b is the y intercept

y = 7/2 x+b

Substitute the point into the equation

9 = 7/2(-2)+b

9 = -7+b

9+7 = b

16 = b

y = 7/2 x+16

Answer:

m=4

n=3

Step-by-step explanation:

m+2n=10

2n+3m=18

Subtract

-2m=-8

m=4

Solve for n

(4)+2n=10

2n+3(4)=18

2n=10-4

2n=18-12

2n=6

n=3

Ok so what's the question

Answer:

The diameter of the bacterium is 10 times greater than that of the virus.

Step-by-step explanation:

Edge

Answer:

sorry bro i really need the points

Step-by-step explanation:

sorry big dawg

Answer:

a) Price increased by 75%

b) Price decreased by 42.85%  (or 43% approximate)

Step-by-step explanation:

$ 40 increased by ____ % to $70

[tex]Percentage\ increase = \frac{difference}{ original} \times 100[/tex]

                             [tex]= \frac{70 - 40 }{40} \times 100\\\\=\frac{30}{40} \times 100\\\\= 75 \%[/tex]

$70 decreased by ______ % to $40

[tex]Percentage \ decrease = \frac{difference }{ original } \times 100[/tex]

                               [tex]= \frac{70 - 40 }{70} \times 100 \\\\= \frac{30}{70} \times 100\\\\=42.85 \%[/tex]

By AAS criteria, ΔABC ≅ ΔADC.

In Euclidean geometry, a parallelogram is a simple quadrilateral with two pairs of parallel sides. The opposite or facing sides of a parallelogram are of equal length and the opposite angles of a parallelogram are of equal measure. A triangle is a polygon with three edges and three vertices. The sum of all the angles of a triangle is 180 degrees. Mathematically -

∠x + ∠y + ∠z = 180°

There are different types of triangles such as -

equilateral triangle , scalene triangle , isosceles triangle etc.

Given is CA bisects ∠BAD, AB ⊥ BC and AD ⊥ DC.

In ΔABC and ΔADC -

∠ABC = ∠ADC = 90°

∠ACB = ∠ACD     {bisected angle ∠BCD}

AC = AC  {Common}

By AAS criteria, ΔABC ≅ ΔADC.

Therefore, by AAS criteria, ΔABC ≅ ΔADC.

To solve more questions on 2 -D figures, visit the link below-

brainly.com/question/25950519

#SPJ2

[Complete questions

Given: CA bisects ∠BAD, AB ⊥ BC and AD ⊥ DC . Prove: △ABC≅△ADC.]

Answer:

i cant read it..

Step-by-step explanation:

Answer:

Step-by-step explanation:

f(x) = 4x+6

the domain has the values of x {-1, 0, 2}

the range is the f(x) or y values and could be calculated if you substitute in the given equation.

f(x= -1) ) = 4(-1) +6 = -4 +6=2

f(x=0) = 4·0 +6 = 0+6 = 6

f(x=2) =4·2 +6 = 8+6 = 14

the range is {2, 6, 14}

Answer:

I think it is 20 but I'm not sure. Sorry if you get it wrong.

Step-by-step explanation:

It's definatly not 4 or 7 because those lengths are too short to be where the question mark is. And 45 is too big for the missing length side.

Thx.

Answer:

x=-4

Step-by-step explanation:

-3x +5 = 17

-3x+5-5=17-5

    -3x=12

 -3x/3 = 12/-3

       x=-4

Answer:

n = 1

Step-by-step explanation:

6n(19_8)÷3=22

1114n_48n÷3=22

66n=66

n=1

==================================================

Work Shown:

C = 2*pi*r

C = 2*3.14*9.7

C = 60.916

This value is approximate since pi = 3.14 is approximate. Use more decimal digits in pi to get a more accurate circumference. The circumference is the distance around the circle, aka the perimeter.

Answer:

60.916

(rounded to the two nearest decimals = 60.92, and to the first decimal = 60.9)

Step-by-step explanation:

Circumference formula: 2πr  

π being pi and r being radius

Fill in your variables: 2(3.14)(9.7)   or 2 x 3.14 x 9.7

use your calculator or simply solve it and you end up with 60.916.

I hope this helped :)

Answer:

The numbers are 19 and 71.

Step-by-step explanation:

Let x and y represent the two numbers.  Then x + y = 90.  

Also, if we assume that the larger number is y, then y = 3x + 14.

We must solve this system of linear equations.  Since we already have the result of solution for y  (y = 3x + 14), let's use the substitution method to find the solution:

x + y = 90 becomes x + 3x + 14 = 90, or:

4x = 76.  Thus, x = 76/4, or 19.       If x = 19, then y = 3(19) + 14, or y = 71.

The numbers are 19 and 71.

Note that these add up to 90, as they must, and that 71 is 14 more than 3 times 19.

Answer:

[tex]19\text{ and }71[/tex]

Step-by-step explanation:

Let the smaller number be [tex]x[/tex]. The larger number can be represented by [tex]3x+14[/tex]

Solving, we get:

[tex]x+3x+14=90,\\4x+14=90,\\4x=76,\\x=\boxed{19}[/tex]

The larger number is therefore [tex]90-19=\boxed{71}[/tex]

Answer:

A. Fraction of all ingredeents that are flour = 1/3

B. Ratio of butter to sugar = 3:2

C.Sugar needed to make biscuits for 6 peopele =150 grams sugar

Step-by-step explanation:

a. 726

b. 34

this is thr answer to thr questions a na d to

Answer:

q =  ±5√5

Step-by-step explanation:

q² - 125 = 0

q² = 125

q = ±√(5 * 25)

q =  ±5√5

Answer:

i think its option 1 and 2

Step-by-step explanation:

dont know so pls tell me if im wrong

q = -5Negative 5 StartRoot 5 Endroot

q = 55 StartRoot 5 EndRoot

Answer:

about 15.328 yrds

Step-by-step explanation:

two sides are 5 yrds, so 5+5= 10yrds. two sides are 8 ft, 8+8=16 ft. there are .3333 yrds in 1 foot so 16*.3333 = about 5.328yrds

10+5.328 = 15.328

Answer:

D

Step-by-step explanation:

Zeroes mean the amount of times the graph has touched the x-axis

Answer:

42

Step-by-step explanation:

From the question, we have it that 63 cups were emptied

That means the sum of both cup sizes is 63

Thus;

x + y = 63 ••••••(i)

Since each small cup is of size 8 oz and a total of x was used. The total volume from the small sized cup is 8 * x = 8x oz

similarly for the medium sized, we have 12 * y = 12y oz

The sum of both is 4(147)

8x + 12y = 4(147 )•••••(ii)

We want to get the value of x

from equation i;

y = 63-x

Substitute this into equation ii

8x + 12(63-x) = 4(147)

8x + 756 - 12x = 4(147)

12x-8x = 756-4(147)

4x = 168

x = 168/4

x = 42 small sized cups