All categories

3 years ago

5(6.2+z) , z=3.8 help please :)

Mathematics

1 answer:

inna [77]3 years ago

3 0

Answer:

the answer should be 50

Step-by-step explanation:

You might be interested in

Simplify.<br> x2 + 2x - 15<br> x².3x

yaroslaw [1]

Use photo math it helps

7 0

3 years ago

under a dilation, the point (2,6) is moved to (6,18) what is the scale factor of the dilation? enter your answer in the box

Anestetic [448]

Step-by-step explanation:

The equation of line passing through the two points is $\frac{y-y_{1} }{x-x_{1} }=\frac{y_{2} -y_{1}}{x_{2} -x_{1}}$

When substituted,the equation becomes $\frac{y-6}{x-2}=\frac{18-6}{6-2}$

which when simplified is $y=3\times x$

The line clearly passes through origin.

The distance between two points is $\sqrt{(y_{1}-y_{2} )^{2}+(x_{1}- x_{2} )^{2}}$

Distance between origin and $(2,6)$ is $\sqrt{40}$ .

Distance between origin and $(6,18)$ is $\sqrt{360}$

Scale factor is $\frac{distance\text{ }of\text{ }p_{2}\text{ from origin}}{distance \text{ } of \text{ } p_{1}\text{ from origin}}$

So,scale factor is $\frac{\sqrt{360} }{\sqrt{40} }$

which when simplified becomes 3.

6 0

2 years ago

Sean answered 18 of 20 quiz questions correctly. What percent of the quiz questions did Sean answer correctly?

ozzi

The answer is 90%. You get this answer by multiplying both the numerator and denominator by 5 so 18x5=90 and 20x5=100 giving you a fraction of 90/100 and a percentage of 90%.

8 0

3 years ago

Read 2 more answers

(-6, 1) and 3, 5)<br> M= rise/run=(y2-y1)/(x2-x1)

Sergeeva-Olga [200]

Answer:

4/9

Step-by-step explanation:

The slope of these points would be: (5-1)/(3+6) = 4/9

7 0

2 years ago

Which of the following is a sequence?

Anna71 [15]

Answer:

The answer of this question is D

Step-by-step explanation:

Time 2

6 0

2 years ago