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4 years ago

These are radical equations I really need help on this I dont have the step by step down hoping someone could help :)

Mathematics

1 answer:

Sholpan [36]4 years ago

5 0

Step-by-step explanation:

Since you didn't actually ask a question, I'm just going to explain how to get rid of the radicals.

When it comes to radical equations like these, you can usually square both sides to get rid of the radical.

The reason this works is because the "square root" of something is the same as that something raised to the power of 1/2. And when you raise a power to a power, you multiply the two together; which reduces the 1/2 and gets rid of the root. (This is actually true for any root. If you wanted to get rid of a cube root you could cube both sides. If you had a 20th root, you could raise both sides to the power of 20.)

From here you'll either have your answer or perhaps need to continue solving. My work is in the attachment, comment with any questions.

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I’ll mark u as brainlist if u get this right!!

WITCHER [35]

Answer:

Step-by-step explanation:

When X is less than -1, positive parabola.

6 0

3 years ago

Read 2 more answers

R , S, and T are the vertices of one triangle. E, F, and D are the vertices of another triangle. mR = 60, mS = 80, mF = 60, mD =

Mumz [18]

Answer:

Yes, the two triangles are congruent, by ASA.

Step-by-step explanation:

In order to find if two triangles are congruent, you need the information of at least three out of the six incongnits of a triangle (the incognits are the three sides and the three angles)

Some of the ways to know if they're congruents are:

-ASA (Angle, side, angle): Two angles and the included side are equal for both triangles.

-AAS(Angle, angle, side): Two angles and a non-incuded side are equal for both triangles

-SAS(Side, angle, side): Two sides and the included angle are equal for both triangles.

In this case, two angles and one side of each triangle are known.

For the triangle RST, you know two angles and the included side.

For the triangle EFD, you know two angles and the non-included side. But is also known that the sum of the angles of a triangle is 180°, therefore you can obtain the third angle of EFD:

180=m∡F+m∡D+m∡E

m∡E= 180 - 60 -40

m∡E= 80°

Therefore:

m∡E=m∡S

m∡F=m∡R

RS=EF

Hence, two angles and the included side for RST and EFD are equal and the triangles are congruent by ASA.

8 0

3 years ago

HELP WITH MATH!!!!!!!!

Likurg_2 [28]

Answer:

28 units sqr

Step-by-step explanation:

Area of Rectangle

A= Lw = 8(4) = 32

Area of Triangle

A= $\frac{b(h)}{2}$ = $\frac{2(4)}{2}$ = 4

32- 4 = 28 units sqr

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3 years ago

How to check this answer 14+17=31

Aleksandr-060686 [28]

THE WAY YOU CHACK THE ANSWER IS BY SUBTRACTING 31-17 AND SEEING IF IT GIVES YOU 14 OR THE OTHER WAY AROUND

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4 years ago

Vanna is saving for a trip. The hotel room will be $298.17 for 3 nights, and there will be additional fees. What is her daily co

docker41 [41]

Answer:

Step-by-step explanation:

Total cost for the three nights

Total_3 = $298.17 + 3*u

Where <em>u </em>represents the unknown fees for a single day

To find the daily cost, we divide the previous equation by three

Daily cost = ($298.17 + 3*u)/3

Daily cost = ($99.39 + u)

So, if we create an inequality for the daily cost

Let x = Daily cost

x > $99.39

She will pay more than $99.39 per night

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3 years ago