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Setler79 [48]
3 years ago
5

Solve (x-5)^2- 45 = 0, where x is a real number

Mathematics
1 answer:
sdas [7]3 years ago
5 0

Answer:

Step-by-step explanation: the answer is x= 3\sqrt{5} +5, -3 \sqrt{5} +5

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A number divided by three less two is at most two
Marina CMI [18]

x ≤ 12

Solution:

Let us take the number be x.

A number : x

A number divided by three : $\frac{x}{3}

A number divided by three less two : $\frac{x}{3}-2

A number divided by three less two is at most two : $\frac{x}{3}-2\leq 2

Now, simplify the inequality,

$\Rightarrow\frac{x}{3}-2\leq 2

Add 2 on both sides of the inequality,

$\Rightarrow\frac{x}{3}-2+2\leq 2+2

$\Rightarrow\frac{x}{3}\leq 4

Multiply by 3 on both sides of the equation,

$\Rightarrow\frac{x}{3}\times3\leq 4\times3

$\Rightarrow x\leq 12

Hence x ≤ 12.

5 0
3 years ago
Hellen is using 3.508 grams of copper for her science experiment. How many kilograms of copper did Hellen use for her science ex
mash [69]

Answer:

.003508 kg of copper

Step-by-step explanation:

1000 grams = 1 kg

3.508 g/1000 g = .003508 kg

7 0
2 years ago
What is the name of this shape
Nataliya [291]
A rectangle....unless it isn't a photo taken from a weird angle....but thats a rectangle.
8 0
3 years ago
Read 2 more answers
I don’t really get this question can someone help me out
Inessa [10]

angles EFH and GFH are congruents

for the second equivalence criterion  two triangles are equivalents if they have  respectively  2 angles and 1 side congruents

the two triangles have congruents the angle right angle (HGF and HEF) and the 55 degrees angles (EFH and GFH); then they have in common the HF side.

so the triangles are congruent and so all the sides are respectively congruent,for example EH with HG:

EH=HG

s+36=7s

s+36-7s=0

s-7s=-36

-6s=-36

6s=36

s=6

<em>sorry for my english</em>

5 0
3 years ago
The image is not drawn to scale.<br><br> Which is the measure of ∠A?
dusya [7]

Answer:

Step-by-step explanation:

7 0
2 years ago
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