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3 years ago

Does the point (3,0) satisfy the equation y = 4.c? O Yes O No

Mathematics

1 answer:

svp [43]3 years ago

4 0

Answer:No

Step-by-step explanation:

You subtitute the x value

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Harper is giving a speech to ask people to donate money to an animal shelter.

astra-53 [7]

Answer:

I would say D.

Step-by-step explanation:

7 0

3 years ago

Read 2 more answers

A piece of string 64cm long is divided into three pieces in the ratio of 1:2:5. Calculate the length of the longest piece.

sergejj [24]

Answer:

40cm is the longest piece ( not sure )

5 0

3 years ago

Pentagon DEFGH is translated 4 units to the right to create pentagon UVXYZ. DE is 5cm long. What is the length of UV?

creativ13 [48]

If a shape is translated (has it's vertex' coordinates moved/changed), then it retains its original values but just has different vertex coordinates.

Thus since DE is equal to UV, then,

DE = UV; substitution:
5=5

5 0

3 years ago

Solve equation, check for extraneous solutions

fiasKO [112]

Start with

$1=\dfrac{1}{n^2}+\dfrac{n^2-4n-5}{3n^2}$

We observe that both fractions are not defined if $n=0$ . So, we will assume $n \neq 0$ .

We multiply both numerator and denominator of the first fraction by 3 and we sum the two fractions:

$1=\dfrac{3}{3n^2}+\dfrac{n^2-4n-5}{3n^2} = \dfrac{n^2-4n-2}{3n^2}$

We multiply both sides by $3n^2$ :

$n^2-4n-2=3n^2$

We move everything to one side and solve the quadratic equation:

$2n^2+4n+2=0 \iff 2(n^2+2n+1)=0 \iff 2(n+1)^2=0 \iff n+1=0 \iff n=-1$

We check the solution:

$1=\dfrac{1}{1}+\dfrac{1+4-5}{3} \iff 1 = 1+0$

which is true

8 0

3 years ago

Marcia biked 600 meters on friday. On saturday, she biked 3 kilometers. One sunday she biked 2 kilometers and 700 meters. How ma

zepelin [54]

Answer:

6.3 km.

Step-by-step explanation:

The question asks for kilometers, so all amounts have to be calculated in the same units -- kilometers.

Convert meters to kilometers.

600 m = .6 km

700 m = .7 km.

Add the amounts:

Fri.: .6 km

Sat. 3 km

Sun.: 2.7 km.

--------------------------------

6.3 km.

6 0

3 years ago