3 years ago

How do I do number 4?

Mathematics

2 answers:

ser-zykov [4K]3 years ago

8 0

What exactly are you trying to find?

Galina-37 [17]3 years ago

4 0

What are you trying to find?

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<img src="https://tex.z-dn.net/?f=%5Csqrt%7B%20x%5E%7B2%7D-10x%2B25%7D%2B25%2B12%5Csqrt%7Bx%7D%20%3D15%5Csqrt%7Bx%7D" id="TexFor

vodomira [7]

Step-by-step explanation:

$\sqrt{ x^{2}-10x+25}+25+12\sqrt{x} =15\sqrt{x} \\ \\ \therefore \: \sqrt{ x^{2}-10x+ {5}^{2} }+25 =15\sqrt{x} - 12\sqrt{x}\\ \\ \therefore \: \sqrt{( x - 5)^{2}}+25 =3\sqrt{x} \\ \\ \therefore \: x - 5+ 25 = 3 \sqrt{x} \\ \\ \therefore \: x + 20 = 3 \sqrt{x} \\ \\ squaring \: both \: sides \\ (x + 20)^{2} = ( {3 \sqrt{x} })^{2} \\ \therefore \: {x}^{2} + 40x + 400 = 9x \\ \therefore \: {x}^{2} + 40x + 400 - 9x = 0 \\ \therefore \: {x}^{2} + 31x + 400 = 0 \\$

8 0

3 years ago

Please help asap! One question! Please help me!!

Anna [14]

Answer:

false, false

Step-by-step explanation:

C' is (5, 4)

A' is (5, -4)

Each side of the triangle is larger in the image, and the area is larger.

Answer: false, false

4 0

2 years ago

Round these to the nearest hundredth

Tanzania [10]

1. 66.60
2. 48.00
3. 71.40
4. 2.95
5. 3.35
6. 2.50
7. 16.75
8. 6.66
9. 583.30
10. 13.00
11. 18.65
14. 26.98
Hope this could help

4 0

3 years ago

Given: ΔABC; a= 10; b = 4, and c = 11. Find the measurement of ∠B to the nearest tenth of a degree.

AleksAgata [21]

Use the Cosine Rule to find this

cos <B = [b^2 - a^2 - c^2] / -2ac

= [ 4^2 - 10^2 - 11^2] / -2*10*11

= 0.93182

so m < B = 21.3 degrees to nearest tenth. Answer

8 0

3 years ago

At a carnival, you spin a spinner that has four equal-sized sections, each a different color: green, yellow, red, and blue. If y

Fittoniya [83]

Answer:

Step-by-step explanation:

a=4

b=4

c=-1

d=4

e=-1

f=4

g=-1

7 0

3 years ago

Read 2 more answers