We know that two complements add up to 90.
Let's call the smaller angle x and the larger y.
3x = y
x + y = 90
We can use simple substitution.
x + 3x = 90
4x = 90
x = 22.5

Then, since we know that 3x=y, we can find the larger angle.
3*22.5 = 67.5

4 0

3 years ago

Please help with these questions... I've been trying to figure them out for like twenty minutes and at this point I just don't h

vlada-n [284]

Answer:

1. y=2x^2-8X-1

2. y=-6x^2+36x-63

3. y=-3x^2+18x-34

4. y=9x^2+54x+76

5. y=-x^2+8x-22

6. y=6x^2-48x+90

7. y=8x^2+16x+5

8. y=2x^2-8x+1

Have a great day :)

3 0

2 years ago

How do i find a formula for "1+3+5+7+......+(2n-1)

nata0808 [166]

Answer:

Step-by-step explanation:

common difference d=3-1=2

first term a=1

an=a+(n-1)d

2n-1=1+(l-1)2

2n-1=1+2l-2

2n-1=2l-1

l=n

(i used l for number of terms)

number of terms=n

$S_{n}=\frac{n}{2} (first ~term+last~term)\\=\frac{n}{2} (1+2n-1)\\=n^2$

7 0

2 years ago

the scale on a map is 1:240000. What is the actual distance represented by 1 centimetre. Give your answer in kilometres

allsm [11]

Answer:

0.24 kilometres

Step-by-step explanation:

1cm represents 240000cm on actual map

therefore to get the actual representation

1km=1000000cm

? =240000cm

Do cross multiplication;

(240000cm x 1km)/1000000cm

=0.24km

5 0

2 years ago

How much will a person pay for 11.3 pounds of bananas at a price of ​$2.07 per​ pound?

How much will a person pay for 11.3 pounds of bananas at a price of $2.07 per pound?