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ASHA 777 [7]
4 years ago
12

1+4=5 2+5=12 3+6=21 8+11=?

Mathematics
1 answer:
astra-53 [7]4 years ago
7 0
The answer is 40 because when you add 21 + 19 it is 40
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This is similar to the last one but this is also an quiz that’s worth a major. Can anybody help?
VashaNatasha [74]

Answer:

42

Step-by-step explanation:

Shanice: 88

Greg: (88 - 4) ÷ 2 = 84 ÷ 2 = 42

3 0
3 years ago
Two supplementary angles are in the ratio 2:7. Find the measure of the Acute angle.
Black_prince [1.1K]

Answer:

y=42.3333333333 (repeating)

Step-by-step explanation:

You need to find the corresponding side. You can see D H is corresponding to E C. So here is what you have to do, find x to (8x - 43) and (2x + 13).

2x + 13 + 8x - 43= 90

10x -30 = 90

     +30  +30

10x = 120

/10     /10 = 12

to check if this is right take x which is 12 and plug it in.

8 x 12= 96 then 96 - 43= 53

2 x 21= 24 then 24 + 13= 37

Next you take 53 and 37 and add it together

53 + 37= 90

about that corresponding side, now you know D H and E C both equal 53

Now you can solve your equation.

53 + 2y + y= 180

53 + 3y = 180

-53           -53

         3y = 127

         /3     /3    

y = 42.333333 (repeating)

to check if this is right take y which is 42.3333333 (repeating) and plug it in.

2y means to multiply y two times so...

42.3333333 (repeating)+ 42.33333333 (repeating)= 84.6666666 (repeating)

y = 42.333333333 (repeating)

E C = 53

add all the numbers together

42.333333 (repeating) + 84.66666666 (repating)+ 53= 180

Therefore y equals 42.33333333 (repeating)

6 0
4 years ago
During the shot put event, Alayna throws the ball 32.45 feet while her teammates throw 28.34 feet, 26.59 feet, and 33.11 feet. U
Tanya [424]
The total feet that were thrown is 120.49 if you just add all of the feet together that's how you will get your answer.
7 0
3 years ago
Read 2 more answers
Stacey has a square piece of cloth. She cuts 3 inches off of the length of the square and 3 inches
Mamont248 [21]

Answer:

6 in

Step-by-step explanation:

Let x = the side length of the original square.

They removed 3 in from each side of the original square, so the side lengths of the remaining square are x - 3 in.

The area of the smaller square is (x - 3)².

The area of the original square is x²

I assume the area of the smaller square is ¼ that of the original square. Then

1. Solve for x

\begin{array}{rcl}\frac{1}{4}x^{2} & = & (x - 3)^{2}\\x^{2} & = & 4(x - 3)^{2}\\& = & 4(x^{2} - 6x + 9)\\x^{2}& = & 4x^{2} - 24x + 36\\3x^{2} - 24x + 36 & = & 0\\x^{2} - 8x + 12 & = & 0\\(x - 2)(x - 6) & = & 0\\x - 2 = 0& \qquad &x - 6 = 0\\x = 2& \qquad &x = 6\\\end{array}

2. Calculate the side length of the smaller square

(a) x = 2

Side length = x - 3 = 2 - 3 = -1 in.

IMPOSSIBLE. You can't have a negative side length.

(b) x = 6

Side length of smaller square = 6 - 3 = 3 in.

Side length of original square = x = 6 in

Check:

\begin{array}{rcl}\frac{1}{4}(6)^{2} & = & (6 - 3)^{2}\\\frac{1}{4}\times 36 & = & 3^{2}\\9 & = & 9\\\end{array}

OK.

3 0
3 years ago
<br><br>Find the volume of the triangular prism.<br><br>A)10 cm3B)12 cm3C)18 cm3D)36 cm3<br><br>​
gtnhenbr [62]

Answer:

= 18 cm^3

Step-by-step explanation:

V = Bh where B is the area of the base, which is the triangular face

B = 1/2 (4*3) = 6

V = 6* 3

V = 18 cm^3

3 0
3 years ago
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