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Molodets [167]
3 years ago
5

Ignore them workings out. Can someone show me how to work this out

Mathematics
1 answer:
Readme [11.4K]3 years ago
7 0
So, i did this, 
7.8*10=70
and then add 12
i got 82
did this help??
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Find 2x2 − 2z4 + y2 − x2 + z4 if x = −4, y = 3, and z = 2
Lina20 [59]
1. Plug in the unknown numbers.
2. Simplify
The answer you get should be 10.
7 0
3 years ago
There are 2 math teachers for every 40 students at the school. How many math teacher should the school have if there are 120 stu
Vitek1552 [10]

Answer:

6

Step-by-step explanation:

2 math teachers for every 40 students

120/40 = 3

2 math teachers x 3 = 6 math teachers

3 0
2 years ago
Read 2 more answers
Sin + cose<br>If tan0 = 1 then, find the values of<br>sec 0 + cosec​
steposvetlana [31]

Answer:

We know that:

Tan(x) = sin(x)/cos(x)

We know that:

Tan(θ) = 1 = sin(θ)/cos(θ)

we can rewrite this as:

sin(θ)/cos(θ) = 1

sin(θ) = cos(θ)

If you know the table of notable angles, the angle such that this is true is θ = 45°

sin(45°) = 1/√2 = cos(45°)

Now we want to find the value of:

sec(θ) + cosec(θ)

Where:

sec(θ) = 1/cos(θ)

cosec(θ) = 1/sin(θ)

And we already know the values of the sine and cosine function, then:

sec(45°) + cosec(45°) = 1/cos(45°) + 1/sin(45°) = 2*(1/( 1/√2)) = 2*√2

Then, given that:

Tan(θ) = 1

We can conclude that:

sec(θ) + cosec(θ) = 2*√2

6 0
3 years ago
Consider circle T with radius 24 in. And 0=startfraction 5 pi over 6 endfraction radians. Circle T is shown. Line segments S T a
satela [25.4K]

Answer:

20\pi $ inches or \approx 62.83$ inches

Step-by-step explanation:

\text{Central Angle of Arc SV}=\dfrac{5\pi}{6}$ rad$\\\text{Radius of Circle T}=24 in.\\\\\text{Length of an arc} = \dfrac{\theta}{2\pi} \times 2\pi r

Therefore:

\text{Length of minor arc SV} = \dfrac{\frac{5\pi}{6}}{2\pi} \times 2\pi \times 24\\=20\pi $ inches\\\approx 62.83$ inches

The length of minor arc SV is 62.83 inches.

7 0
3 years ago
What percent of 4c in each expression? <br> 0.2c
Ymorist [56]

The percentage of 4c in the expression 0.2c is 2000%

<h3>How to determine the percentage of 4c?</h3>

The expression is given as:

0.2c

The percentage of 4c is then calculated as:

4c/0.2c

Evaluate the quotient

20

Express as percentage

2000%

Hence, the percentage of 4c in 0.2c is 2000%

Read more about percentages at:

brainly.com/question/843074

#SPJ1

7 0
2 years ago
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