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3 years ago

Pls help will mark as brainliest

Mathematics

2 answers:

dezoksy [38]3 years ago

6 0

Answer:

Step-by-step explanation:

garik1379 [7]3 years ago

3 0

Answer:

6x + 12x + 90 = 180

Step-by-step explanation:

Well 6x plus 12x must equal 90 degrees. 6x plus 12x plus 90 has to equal 180.

Therefore, 6x + 12x + 90 = 180

Because then, if you subtract 90 from both sides, you have that 6x + 12x = 90.

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Can someone tell me how to do this ??

suter [353]

Answer:

See step-by-step

Step-by-step explanation:

A prism is named by the shape of its bases. That makes this an octagonal prism

The shape of the bases are octagons.

The vertices are all the letters

The lateral edges are all the vertical lines connected by the vertices. RQ, WN, VM, are all examples.

The rectangles making up the sides are called lateral faces.

The altitudes are the same as the lateral edges. They all represent the height of the prism.

3 0

3 years ago

Find the value(s) of k such that 4x² + kx + 4 = 0 has 1 rational solution

Blababa [14]

Answer:

If you mean only one rational solution, the answer is

$k_1 = 8, k_2 = -8$

If you mean at least 1 rational solution, the answer is

$k\in (-\infty, -8]\cup[8, \infty)$

Step-by-step explanation:

$4x^2 + kx + 4 = 0$

Let's calculate the discriminant.

$\Delta = b^2 - 4ac$

$\Delta = k^2 -4 \cdot 4 \cdot 4$

$\Delta = k^2 -64$

Now, remember that:

$\text{If } \Delta > 0 : \text{2 Real solutions}$

$\text{If } \Delta = 0 : \text{1 Real solution}$

$\text{If } \Delta < 0 : \text{No Real solution}$

Therefore, I will just consider the first two cases.

$k^2 - 64 > 0$

and

$k^2 -64 = 0$

$\boxed{\text{For } k^2 - 64 > 0}$

$k^2 > 64 \Longleftrightarrow k>\pm\sqrt{64} \Longleftrightarrow k\in (-\infty, -8)\cup(8, \infty)$

$\boxed{\text{For } k^2 - 64 = 0}$

$k^2 = 64 \Longleftrightarrow k=\pm\sqrt{64} \implies k_1 = 8, k_2 = -8$

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3 years ago

avier is considering two options for college. Option A: Complete the first two years of schooling at a community college and the

DedPeter [7]

Answer:

kok

Step-by-step explanation:

8 0

4 years ago

Please help..:

Elodia [21]

600-225 = 375 students didn't attended the game.

So, the percentage of the people who didn't attented will be (375/600) × 100 = 62.5%

4 0

3 years ago

Write and solve an equation to find the value of the variable.

Alisiya [41]

Well the first thing you have to do is find the sum of the numbers given. 5.2 + 8.3 + 8.5+ 7.7+ 7.8= 37.5

the equation would now be 37.5+y/6 = 7.1

After this you multiply 7.1 by 6 which is 42.6 turning the equation to 37.5 + y = 42.6.

Then you subtract 37.5 from 42.6 making y =5.1

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4 years ago