All categories

2 years ago

I need help with number 4 . Can I please get the answer as soon as possible?

Mathematics

1 answer:

zloy xaker [14]2 years ago

8 0

The solution will be where the lines intersect. That point satisfies both equations of the lines.

A = (3,5)

B = infinate - overlying lines have infinate points that solutions.

C = no solution - parallel lines never intersect

You might be interested in

1.9^4 × 10 × 2.9 x 10^1

nlexa [21]

3779.309 is the answer....

4 0

1 year ago

Read 2 more answers

Do the ratios 24:60 and 2:5 form a proportion?

algol [13]

Yes

It can easily be evaluated by testing:

24/2=12

60/5=12

Both equal the same digit, which means they are proportional :)

5 0

2 years ago

Read 2 more answers

Plzz help me

Aleonysh [2.5K]

One solution.

They have different slopes and therefore must have one solution.

3 0

2 years ago

ACT scores have a mean of 20.8 and 9 percent of the scores are above 28. The scores have a distribution that is approximately no

dimaraw [331]

Answer: 5.37

Step-by-step explanation:

Let x = ACT scores.

Given: ACT scores have a mean of 20.8 and 9 percent of the scores are above 28. The scores have a distribution that is approximately normal.

i.e. P(X>28)=0.09 (i)

Now,

$P(X>28)=P(\dfrac{X-\mu}{\sigma}>\dfrac{28-20.8}{\sigma})\\\\= P(z>\dfrac{7.2}{\sigma})\ \ \ \ [z=\dfrac{X-\mu}{\sigma}]$ (ii)

One -tailed z value for p-value of 0.09 =1.3408 [By z-table]

From (i) and (ii)

$\dfrac{7.2}{\sigma}=1.3408\\\\\Rightarrow\ \sigma=\dfrac{7.2}{1.3408}\\\\\Rightarrow\ \sigma=5.37$

Hence, the standard deviation = 5.37

5 0

2 years ago

Hi pls help me!!! thank you

elena-s [515]

Step-by-step explanation:

Circumference (C):

$C = 2\pi r = 2\pi(5\:\text{ft}) = 31.4\:\text{ft}$

Area (A):

$A = \pi r^2 = \pi(5\:\text{ft})^2 = 78.5\:\text{ft}^2$

6 0

2 years ago