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2 years ago

Help me plz!!! i have to get a good grade and dont know how to do this stuff

Mathematics

1 answer:

Flauer [41]2 years ago

8 0

1. 3√10

2. 13√10

3. -3√6

4. -√10

5. 15√6

6. 13√3

7. 10√6

8. 14√2

9. 32√7

10. -11√3

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I need help, which one is it?

Sedbober [7]

Answer:

B. 3x ^3√648x^4y^8

Step-by-step explanation:

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2 years ago

Two runners start 30kilometer apart and run toward each other. they meet after 3hours. One Runner runs 2 kilometers per hour fas

joja [24]

Answer:

4 km per hour and 6 km per hour.

Step-by-step explanation:

The combined running rate = 30/3 = 10 km/h.

If one runner's speed = x then the other one's speed is x+2 km/h.

So x + x + 2 = 10

2x = 8

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2 years ago

(2y + 50)" (7x - 248)<br> (5y - 17) (x +44)°<br> Find the value of x and y.

Sveta_85 [38]

Answer:

x = 48

y = 21

Step-by-step explanation:

To find the value of x and y, using the definition of supplementary angles, create an equation to find x and y as follows:

Finding y:-

$(2y + 50) + (5y - 17) = 180$ (supplementary angles definition)

Solve for y

$2y + 50 + 5y - 17 = 180$

Collect like terms

$2y + 5y + 50 - 17 = 180$

$7y + 33 = 180$

$7y + 33 - 33 = 180 - 33$

$7y = 147$

$\frac{7y}{7} = \frac{147}{7}$

$y = 21$

Finding x:-

$(7x - 248) + (x + 44) = 180$ (supplementary angles definition)

Solve for x

$7x - 248 + x + 44 = 180$

Combine like terms

$8x - 204 = 180$

$8x - 204 + 204 = 180 + 204$

$8x = 384$

$\frac{8x}{8} = \frac{384}{8}$

$x = 48$

7 0

2 years ago

–5x+4-x-1<br> 10 points I’ll mark brainliesr I need asap

prohojiy [21]

-5x+4-x-1

combine the like terms first

-5x-x+4-1

-5x-x=-6x

+4-1=3

answer:

-6x+3 or 3-6x

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2 years ago

Read 2 more answers

Help me pls pls pls

mixas84 [53]

Answer:

1. C 2. B 3. E 4. also B

Step-by-step explanation:

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2 years ago