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olga nikolaevna [1]
3 years ago
13

Drag the simplified value into the box to match each expression.

Mathematics
1 answer:
nydimaria [60]3 years ago
6 0

Answer:

The answers are as follows: 12 106 42

Step-by-step explanation:

Given: $ 18 - 4^2 + 5 \times 2 $

Using BODMAS rule (Bracket, Of, Division, Multiplication, Addition and Subtraction) we would calculate $ 18 - 4^2 $ separately and $ 5 \times 2 $ separately and add them. So we have $ 18 - 16 + 10 =  2 + 10 =12 $.

Now for the second question: $ 9^2 + 4 \times 7 - 3 $ we would get $ 81 + 28 - 3 = 106 $.

Next, $ 5^2 - 4 + 7 \times 3 $. This could be written as: $ 25 - 4 + 21 = 42 $. Hence the answers.

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Please help i will mark brainlist
Feliz [49]

Answer:

72.22 inches

Step-by-step explanation:

Okay so the formula for circumference is C=2πr so since the diameter is twice the radius, the radius is 11.5. Now you have to multiply 11.5 and 2. That equals 23. Now you have to multiply 23 by π which is about 3.14. 23 times 3.14 is 72.22 inches.

Hope this helped!! :D

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2 years ago
A slide is 10 feet long and 8.8 feet high. How long is its base, from the bottom of the ladder to the end of the slide? If neces
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8 0
3 years ago
Which represents the inverse of the function f(x) =4x?
denpristay [2]

Let's see

Let y=f(x)

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Graphs attached

8 0
1 year ago
Read 2 more answers
En una PA cuya razón es 16, el término que ocupa el lugar 4 es 61. Si el último término es 173, ¿cuántos términos tiene la progr
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6 0
2 years ago
I don't need you to work it out, just theorem(s) i need to reach the answer :)
VikaD [51]
Not sure why such an old question is showing up on my feed...

Anyway, let x=\tan^{-1}\dfrac43 and y=\sin^{-1}\dfrac35. Then we want to find the exact value of \cos(x-y).

Use the angle difference identity:

\cos(x-y)=\cos x\cos y+\sin x\sin y

and right away we find \sin y=\dfrac35. By the Pythagorean theorem, we also find \cos y=\dfrac45. (Actually, this could potentially be negative, but let's assume all angles are in the first quadrant for convenience.)

Meanwhile, if \tan x=\dfrac43, then (by Pythagorean theorem) \sec x=\dfrac53, so \cos x=\dfrac35. And from this, \sin x=\dfrac45.

So,

\cos\left(\tan^{-1}\dfrac43-\sin^{-1}\dfrac35\right)=\dfrac35\cdot\dfrac45+\dfrac45\cdot\dfrac35=\dfrac{24}{25}
7 0
3 years ago
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