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amid [387]
2 years ago
7

D ÷ 20 = 0.81 d = ? what is d?

Mathematics
1 answer:
Wittaler [7]2 years ago
8 0

Answer: 16.2

Step-by-step explanation:

i used the calculator

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The ordinate is twice the abscissa
zepelin [54]

We can construct the function:

f(x)=2x

Where f(x) or y is ordinate and x is abscissa.

The function actually represents a line. Since it can have linear form.

f(x)=2x+0

Hope this helps.

r3t40

5 0
3 years ago
You see Bonnie rock climbing El Capitan. On your telescope is a clinometer. The angle
Marat540 [252]

Answer:

≈ 345.8 ft

Step-by-step explanation:

There is a right triangle formed by Bonnie's height (h) the ground and the angle of elevation.

Using the tangent ratio in the right triangle

tan20° = \frac{opposite}{adjacent} = \frac{h}{950} ( multiply both sides by 950 )

950 × tan20° = h , thus

h ≈ 345.8 ft ( to 1 dec. place )

8 0
3 years ago
A belt and a wallet cost $42 while 7 belts and 4 wallets cost $213. Calculate the cost of each item.
Fittoniya [83]
Let, the cost of a belt = x
cost of a wallet = y

Then, system of equations would be:
x + y = 42
7x + 4y = 213

Multiply 1st equation by 4, 
4x + 4y = 168
Substitute it from 2nd equation, 
3x = 45
x = 15

Now, substitute it in 1st equation, 
15 + y = 42
y = 42 - 15 = 27

In short, Belt costs $15 and wallet costs $27

Hope this helps!
3 0
4 years ago
Read 2 more answers
2/7 +2/5 find the sum and difrence
Juliette [100K]

Answer:

24/35  and the difference between two fractional numbers with same or equal denominators 5/7 and 2/7.

4 0
3 years ago
Combine like terms to write an equivalent expression. Then use y = 5 to prove the expressions are equivalent. 1 + y + y + y + 1
NeX [460]

Answer:

The equivalent expression is  

✔ 3y + 2

.

The value of both expressions when y = 5 is  

✔ 17

.

The expressions are  

✔ equivalent

.

Step-by-step explanation:

3 0
3 years ago
Read 2 more answers
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