Fill in the missing operator where the blank is.
18 _ (-20)= -2

Answer:

20km

Step-by-step explanation:

we need to find c, which is the hypotenuse of the right triangle.

we know the lengths of the legs, which are given as 16km and 12km

you might notice that 16km and 12km can both be divided by 4, which will then give is 4 and 3.

3,4,5 is a pythagorean triple-(the sums of the squares of 3 and 4 is equal to the square of 5).

The triple can be proved:

3²+4²=5²

9+16=25

25=25

that means the lengths of the triangle is a multiple of the triple 3, 4, and 5

so that means that c is 5*something

since 12 and 16 are 3*4 and 4*4 respectively, that means that c must be 5*4=20km

Hope this helps!

Answer:

0.65 in

Step-by-step explanation:

I didn't put a link btw

Answer:

18.6 cm²

Step-by-step explanation:

99/7 + 9/2

= 18.6 cm²

Answer:

35 out of 75

Step-by-step explanation:

Answer:

First some theory we need to solve this problem.

For a circle of radius R, the perimeter is:

P = 2*pi*R

where pi = 3.14

If we have a section of this circle, defined by an angle θ, the length of this arc will be:

A = (θ/360°)*2*pi*R

In the case of the problem, the total distance that the child travels is equal to the length of an arc of 310° in a circle of radius r = 6ft.

Using the above formula, we know that the length of this arc is:

A = (310°/360°)*2*3.14*(6ft) = 32.4 ft

Answer:

f(3) = - 38

Step-by-step explanation:

f(2) = 3 f(2 - 1) - 5 = 3 f(1) - 5 = 3(-2) - 5 = -6 - 5 = -11

f(3) = 3 f(3 - 1) - 5 = 3 f(2) - 5 = 3(-11) - 5 = - 33 - 5 = - 38

Answer:

C

Step-by-step explanation:

Symmetry means to have the same structure on both sides. So, imagine a mirror reflecting, lets say half a piece of bread the structure will be the same on both sides.

pls give brainlist if helpful

Answer:

The top one is a triangle which is the back part of the shape. The bottom left one is also a triangle and the bottom right one is a rectangle

Answer:

D) 312 square cm

Step-by-step explanation:

The area of the rectangle is 192 square cm (16*12). The area of each triangle is 60 square cm (12*10/2). 192+60+60=312 square cm

Answer:

6% commission

Step-by-step explanation:

Exchange Rates

£1:$1.31

£1 : €1.14

$759.80 to pounds sterling :

£1 = $1.31

x = $759.80

Cross multiply :

x = 759.80 / 1.31

x = £580

£1 = €1.14

x = €342

Cross multiply :

x = 342 /1.14

x = £300

Total = £(580 + 300) = £880

Amount deducted = commision = £880 - £827.20 = £52.80

Percentage commission :

(52.80 / 880) * 100%

0.06 * 100%

= 6% commission

Answer:

n

Step-by-step explanation:

Answer:

Step-by-step explanation:

angle 1 is a half of angle 238°

Answer:

I think the answers would be a d and b

Step-by-step explanation:

the perimeter formula for a rectangle is 2L + 2W

if we take the measurements for rectangle a and add 4 + 4, we get 8. then we can do 2 + 2 to get 4. lastly, we would add 8 + 4, which equals 12.

for rectangle d, we can do 3 + 3, which equals 6. because the measurements are the same on each side, we don't have to do another equation and we would just add 6 + 6 to get 12.

and for rectangle b, you can do 1 + 1 = 2 and 5 + 5 = 10, then add 10 and 2 together to get 12.

Answer: x ≥ -80

Step-by-step explanation:

-1/2x ≤ 40

1/2x ≤ -40

x ≥ -80

Answer:

The answer would be 6.

Step-by-step explanation:

First, we need to make equations for these electricians fee's.

Electrician one: Y=25x+50, 50 is the upfront cost and 25 is the cost per hour for work.

Electrician two: Y=27.50x+35, It is the same thing for these numbers.

Then you need to incert numbers into the X place. Y will be your answer.

Y=25(6)+50, Y=150+50, Y=200

Y=27.50(6)=35, Y=165+35, Y=200

The answer would be 6. If both the electricians worked for 6 hours each, their prices would be equal.

The answer is 1/10

This is simple division

The equation is (1/5÷2)

I did my work on a sheet of paper so i know i did this correctly

My explanation of my work:

Keep change flip is the operation used here

So you keep 1/5 ,change the division sign to multiplication and flip the 2/1 into 1/2 so the new equation is (1/5x1/2) the answer to that is 1/10  

Have an amazing day :)

-yO mAmA

Answer:

60%

Step-by-step explanation:

multiply 15 and 60%

Have a nice day!

Answer:

area is 60 cm sq units

Step-by-step explanation:

16+12+12+20=

16+24+20

40+20=60

Answer:

c

Step-by-step explanation:

Answer:

Ummm give me a second let me solve this

Answer:

What is the question?

Step-by-step explanation:

Answer:

formula is 2(lb plus bh plus hl)

Length- 80cm

width- 3cm

height- 200cm

240 plus 600 plus 16000

pls mark Brainliest if you can?

33680 cm is the surface

area

Answer:

Volume = 0.5 x bas x area x hight( do this to find the volume)

LA = Use power rule which is "use to differentiate expressions". d/dL [L^n] = nL^n-1. A add all areas of the faces

SA = To find SA  do bh + 2ls + lb

Hope this helps you find your answer!

Answer:

2:6

Step-by-step explanation:

The question asks for the ratio of ladybugs to total insects. We'll use "l" for ladybugs and "i" for insects. So, the ratio will be l:i.

The number of ladybugs is 2, so we can plug that into our ratio.

2:i

Now, plug in the total number of insects, which is 6.

2:6

Answer:

Pretty sure its 20

Step-by-step explanation:

I just did the math

Answer:

5 i think

Step-by-step explanation:

§(*￣▽￣*)§§(*￣▽￣*)§§(*￣▽￣*)§§(*￣▽￣*)§§(*￣▽￣*)§(∪.∪ )...zzz(∪.∪ )...zzz(∪.∪ )...zzz(∪.∪ )...zzz

Answer:

you got it right

Step-by-step explanation:

Answer:

∡b = 53°

∡d = 127°

∡c = 127°

Step-by-step explanation:

in trapezoids, the two top angles are equal and the two bottom are equal

also, there are 360 degrees in any 4-sided polygon

53 + 53 + x + x = 360

2x + 106 = 360

2x = 254

x = 127

Answer:

127

Step-by-step explanation: