can someone please help i dont understand

Answer:

x = 51

Step-by-step explanation:

Supplementary angles total 180º

(2x + 4) + (x + 23) = 180

Combine like terms

3x + 27 = 180

Subtract 27 from both sides

3x = 153

Divide both sides by 3

x = 51

Answer:

Hello! x = 51

Step-by-step explanation:

OMG I CAN ANSWER FINALLY!

it is forming a supplementary angle meaning it will add up to 180 degrees

51 × 2 = 102 102 + 4 = 106

51 + 23 = 74

106 + 74 = 180 therefore x = 51 Hope that helps.

Answer:

[tex]28[/tex]

Step-by-step explanation:

The formula for the area of the shape is given is equal to its base multiplied by its height. We're given a base of 7 and height of 4, hence the area is [tex]7\cdot 4=\boxed{28}[/tex]

Answer:

- [tex]\frac{1}{3}[/tex]

Step-by-step explanation:

The equation of a line in slope- intercept form is

y = mx + c ( m is the slope and c the y- intercept )

y = 3x - 8 ← is in slope- intercept form

with slope m = 3

Given a line with slope m then the slope of a line perpendicular to it is

[tex]m_{perpendicular}[/tex] = - [tex]\frac{1}{m}[/tex] = - [tex]\frac{1}{3}[/tex] ← slope of perpendicular line

Answer:

The Answer is B: We must find the opposite reciprocal of the slope of the line whose equation we were given.

Step-by-step explanation:

I have the same exact question and I also do acellus.

Answer: 1856.10

Step-by-step explanation:

Suzie will make $1856 in 4 weeks.

The first week 300

The second week: 300 x 30% + 300 = 390

The third week: 390x (1430%) = 507

The fourth week: 507 × (1430%) = 659.1

So Sum to: 300 +390 +507 +659.1 = 1856.1

Profit is $1856.

Learn more about profit here: brainly.com/question/19104371

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d= distance travelled = 6 km

P= 5d²+270

= 5(6)²+270

=5 ×36 +270

= 180+ 270

= 450

Taxi fare = 450 pence

Answer:

AC^2+BC^2= AB^2

So 5^2+8^2=c^2

5 squared + 8 squared = c squared

Please mark me as brainliest.

Answer:

So its C! Heart it if its explained well, thanks!

Step-by-step explanation:

There is a pattern. The ordered pairs look like this...(1,10), (2,20), (3,30), (8,80) etc. So if we keep going (12,120)

Answer:

C

Step-by-step explanation:

Given:

The system of equation is:

[tex]-2x+4y=16[/tex]

[tex]2x+2y=8[/tex]

To find:

The solution of the given system of equations.

Solution:

We have,

[tex]-2x+4y=16[/tex]              ...(i)

[tex]2x+2y=8[/tex]                ...(ii)

Add (i) and (ii) to eliminate the variable x.

[tex]6y=24[/tex]

[tex]y=\dfrac{24}{6}[/tex]

[tex]y=4[/tex]

Putting [tex]y=4[/tex] in (ii), we get

[tex]2x+2(4)=8[/tex]

[tex]2x+8=8[/tex]

[tex]2x=8-8[/tex]

[tex]2x=0[/tex]

Divide both sides by 2.

[tex]x=0[/tex]

Therefore, the solution of given system of equations is (0,4). Hence, the correct option is A.

Answer:

(0,4) or A

Step-by-step explanation:

Edge 2021

Answer:

area = 2.28

Step-by-step explanation:

area of triangle is 1/2*b*h

area = (1/2)*3.8*1.2

area = 2.28

Answer:

2.28

Step-by-step explanation:

Area of triangle =(base*height)/2

And base=1.2 cm

Height=38 mm ( change it to cm as they need the answer in square cm) which is 3.8 cm

So (1.2*3.8)/2=2.28

Answer: x=6 or x=-3

Step-by-step explanation:

x^2-18=3x

x^2-3x-18=0

(x-6)*(x+3)=0

x-6=0    x+3=0

x=6        x=-3

Given:

Triangle EFG is congruent to triangle YXZ by ASA.

To find:

The other corresponding parts can be marked congruent by CPCTC.

Solution:

We have,

[tex]\Delta EFG\cong \Delta YXZ[/tex]

We know that the corresponding parts of congruent triangles are congregant (CPCTC). So,

[tex]\angle E\cong \angle Y[/tex]

[tex]\angle F\cong \angle X[/tex]

[tex]\angle G\cong \angle Z[/tex]

[tex]EF\cong YX[/tex], it is also written as [tex]FE\cong XY[/tex]

[tex]FG\cong XZ[/tex], it is also written as [tex]GF\cong ZX[/tex]

[tex]EG\cong YZ[/tex], it is also written as [tex]GE\cong ZY[/tex]

Therefore, the correct options are 2, 6 and 7.

Answer:

0.02.90 and 2.90

Step-by-step explanation:

2% of 90 equal to both 0.02.90 because are worth same.

Answer: 3

Step-by-step explanation:

I think…

Answer:

4.5

Step-by-step explanation:

the answer is in the picture

Answer:2.3

Step-by-step explanation:

Cut the the shape into a right triangle and a rectangle

Tri: find measure of the base

sin(45)= opp/hyp

          = x/1.8

        1.8 *sin (45)  = x

x = 1.3

base of tri = 1.3

Area of tri = 1/2bh

                     1/2(1.3)(1.3)

                    =0.845

Area of rectangle: 1.1*1.3=1.43

Total area = 1.43+0.845

                  =2.245

                  =2.3m^2

Answer:

[tex]\frac{8}{4}[/tex] = 2

Step-by-step explanation:

Divide numerator by denominator

[tex]\frac{10}{4}[/tex] = 2.5 ← not a whole number

[tex]\frac{8}{4}[/tex] = 2 ← a whole number

[tex]\frac{3}{6}[/tex] = 0.5 ← not a whole number

[tex]\frac{7}{8}[/tex] = 0.875 ← not a whole number

Answer:

36cm^2

Step-by-step explanation:

the answer is

area of rectangle =l×b

=9×4.

=32

Answer:

Step-by-step explanation:

The angle (angle D) created by 2 tangents to a circle (DC and DA) is half of the difference between its intercepted arcs (arc ABC - arc AC):

[tex]65=\frac{1}{2}(x-[360-x])[/tex] If we don't know the measures of either of the arcs, but we DO know that the measure around the outside of a circle is 360 degrees, then we will call arc ABC "x", making arc AC "360 - x". Solving:

2(65) = 2x - 360 and

130 = 2x - 360 and

130 + 360 = 2x and

490 = 2x so

x = 245. This means that arc ABC is 245 and arc AC is 115.

Answer:

side of base, a = 10.1 inches, height, h = 40.1 inches

Step-by-step explanation:

Volume of rectangular solid, V = 4096 cubic inches

Let the side of base is a and the height is h.

[tex]V = a^2h\\\\4096 = a^2 h ..... (1)[/tex]

surface area of the solid  

[tex]S = 2a^2 + 4 ah \\\\S = 2a^2 + 4 \times a \times \frac{4096}{a^2} from (1)\\\S = 2a^2 + \frac{4096}{a}\\\\\frac{dS}{da}= 4 a - \frac{4096}{a^2}\\\\4 a - \frac{4096}{a^2} = 0 \\\\a^3 = 1024\\\\a =10.1 inches[/tex]

So, h = 40.2 inches

Answer:

Step-by-step explanation:

Dhehekej

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Explanation:

List out the perfect squares

and so on. We can see that 46 is between 6^2 = 36 and 7^2 = 49.

We can say 6^2 < 46 < 7^2

Applying the square root to all three sides leads us to 6 < sqrt(46) < 7

Now multiply all three sides by -1. This will flip the inequality signs

We go from

6 < sqrt(46) < 7

to

-6 > -sqrt(46) > -7

It might help to order things from smallest to largest to get this

-7 < -sqrt(46) < -6

This means -sqrt(46) is between -7 and -6 on the number line

See the diagram below.

Answer:

Step-by-step explanation:

First notice that -√46 lies between -√49 and -√36, that is, between

                                                              -7   and  -6.  

Here all three numbers are negative because they lie to the left of zero (0) on the number line.

Answer:

b = 5

Step-by-step explanation:

You want to get b on one side alone so you divide by 4.

20 divided by 4 is 5.

Answer:

b = 5

Step-by-step explanation:

4b = 20

Whatever we do to one side of the equation, we have to do to the other.

To "isolate the variable", or get "b" by itself, we have to divide both sides by 4

4b divided by 4 is b, since "4b = 4 times b"

20 divided by 4 is 5

4b = 20

b = 5

Answer:

1/15

Step-by-step explanation:

sin P = ON/PN = 2/30 = 1/15

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Explanation:

Focus on triangle OCT. We can see that the triangle is isosceles because OT = OC are two radii of the same circle. That consequently means angles T and C are the congruent base angles (rotate the triangle to see what I mean). The base angles are opposite the congruent sides.

Since base angle C is 35 degrees, that makes base angle T this measure as well.

-----------

We just found angle CTO is 35 degrees. Angle PTO is supplementary to this, so it is 180-35 = 145 degrees.

Now focus solely on quadrilateral PTOQ. The goal is to find angle O, aka angle QOT. We found angle T in the paragraph above and it's 145 degrees. Angle Q is 90 degrees assuming segment PR is tangent to the circle at point Q.

------------

Recall that for any quadrilateral, the interior angles always add to 360

let x be the measure of angle O, aka angle QOT

P+T+O+Q = 360

60+145+x+90 = 360

x+295 = 360

x = 360-295

x = 65

Therefore, angle QOT is 65 degrees

Answer:

3 years

Step-by-step explanation:

Let y = number of orangutans, and let x = number of years.

For each study, the population, y, after x years is:

First study:

y = 784 - 25x

Second study:

y = 817 - 36x

We set the populations equal and solve for x, the number of years.

784 - 25x = 817 - 36x

Add 36x to both sides. Subtract 784 from both sides.

11x = 33

Divide both sides by 11.

x = 3

Answer: 3 years