All categories

3 years ago

NEED HELP IN TEST Please

Mathematics

2 answers:

Elden [556K]3 years ago

8 0

Answer:

did you try

Step-by-step explanation:

Georgia [21]3 years ago

3 0

Answer:

c is on quadrant 2

Step-by-step explanation:

fbvsthbkjgvxd

You might be interested in

A battery was charged. When the charging began, it was 23 percent full. After 30 minutes of charging, the battery was 89 percent

AfilCa [17]

QUESTION:

A battery was charged. When the charging began, it was 23 percent full. After 30 minutes of charging, the battery was 89 percent full. how fast did the battery charge and how long did it take?

Solution :

Given

Initial amount of charge = 23%
Amount after charge = 89%

procedure

Let the rate of charging be r .

r = (change in charge level) / (time interval) = (89% - 23%) / (30 min) = 2.2 % per minute

charge = (rate of charging)(time) + (initial charge)

100% = r*t + 23%

100% = (2.2 %/min)t + 23%

Solve for t and get

t = [(100 - 23) / 2.2]

Answer = 35 min

7 0

4 years ago

In the triangle above, what is sin A

Shkiper50 [21]

Answer:

$\large\boxed{\sf sin(A)=0.5}$

Step-by-step explanation:

A right angled triangle is given to us and we would like to find out the value of sin(A) .

From the triangle we can see that the measure of angle BAC is 30° . Therefore ,

$\longrightarrow A = 30^o$

On using sin both sides ,

$\longrightarrow sin(A) = sin30^o$

As we know that the value of sin30° = 1/2. So;

$\longrightarrow sin(A)=\dfrac{1}{2}$

Simplify by converting it into decimal ,

$\longrightarrow \underline{\underline{sin(A) = 0.5}}$

Hence option B is correct .

And we are done!

8 0

2 years ago

A soccer field is 100 yd wide and 130 yd long. find the length of the diagonal of such a field. give an exact answer as a radica

Misha Larkins [42]

We know that
applying the Pythagorean theorem
c²=a²+b²
c is the length of the diagonal
a=100 yd
b=130 yd
c²=100²+130²-------> c²=26900---------> c=√26900 units----> c=10√269 units

the answer is
the length of the diagonal is 10√269 units or 164.012 units

4 0

3 years ago

Most new buildings are required to have a ramp for the handicapped that has a maximum vertical rise of 11 feet for every 132 fee

Komok [63]

Answer:

11/132 = 1/12

Step-by-step explanation:

just put the rise over the run and simplify

8 0

3 years ago

PLEASSEE HELPP!!

svp [43]

A dilation with scale factor 3 gives the effect of stretching the line AB three times longer, as shown in the diagram below

The slope will stay the same as dilation does not change the direction of the line

If point O lies on AB and is the center of dilation, then the point O must also lie on A'B'

Answer:
the slope of A'B' = 3
A'B' passes through point O

4 0

3 years ago

Read 2 more answers