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Vlad1618 [11]
2 years ago
9

Janelle has taken an online defensive safety driving course and is now completing the course exam. While taking the exam on the

computer the screen tells her the portion of the test she has finished m.she has just completed question 21, which is 30% of the exam.how many total questions are on the test
Mathematics
1 answer:
LenKa [72]2 years ago
5 0
There are 70 questions on the test
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Is the fraction 7/8 closer to 1 or 0
Colt1911 [192]

Answer:

It's closer to 1

Step-by-step explanation:

8 0
2 years ago
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I need to study for a test tomorrow and I got these questions online can anyone please tell me the answers.
puteri [66]
1) 4x+6= 10; x=1
2) c + 5= 15; c=10
3) 2 - a= 18; a= -16
4) -8x=16; x= -2
5) a+6= 12; a=6
6) 3+b= 18; b=6
7) -5 - x= 19; x= -24
8) 7+4b= 34; b= 6.75
7 0
3 years ago
I am working on a test review. How can I write -1 <= 2x+7 <21 as two inequality statements? How do I join them with and/or
Tanya [424]

Answer:

( - 1 > 2x + 7)(2x + 7 < 21)

Not sure about the and/or statement

6 0
3 years ago
Please help me solve the screenshot below.
Harrizon [31]

Answer:

The arrangement of the given equation in the slope - intercept form are

  1. y=-x+4
  2. y=2x-5

Step-by-step explanation:

Given:

x + y = 4 and

y - 2x = -5

Slope - intercept form :

y=mx+c

Where,

m is the slope of the line.

c is the y-intercept.

When two points are given say ( x1 , y1 )  and ( x2 , y2)  we can remove slope by

Slope,

m=\frac{y_{2}- y_{1}}{x_{2}- x_{1}}

Intercepts: Where the line cut X axis called X- intercept and where cut Y axis is called Y- intercept.

So, the Slope -intercept form of

x + y = 4   is  y=-x+4

and

y - 2x = -5 is  y=2x-5

3 0
3 years ago
Which of the following expression expressions is equivalent to cos3x/sinxcosx?
77julia77 [94]
Correct Option:
Option B

Solution:
The given expression is:

\frac{cos(3x)}{sin(x)cos(x)}

cos(3x) can be written as cos(2x +x). Expanding it, we get:

cos(3x) = cos(2x+x) \\  \\ &#10;cos(3x) =cos(2x)sin(x)-sin(2x)cos(x)

Using this value of cos(3x) in given equation, we get:

\frac{cos(3x)}{sin(x)cos(x)} \\  \\ &#10;= \frac{cos(2x)sin(x)-sin(2x)cos(x)}{sin(x)cos(x)} \\  \\ &#10;= \frac{cos(2x)sin(x)}{sin(x)cos(x)}- \frac{sin(2x)cos(x)}{sin(x)cos(x)}  \\  \\ &#10;= \frac{cos(2x)}{cos(x)} - \frac{sin(2x)}{sin(x)} \\  \\ &#10;=sec(x)cos(2x)-csc(x)sin(2x)
8 0
3 years ago
Read 2 more answers
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