1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
strojnjashka [21]
3 years ago
9

Anna drove 476 miles in 7 hours. On average, how fast did she drive in miles per hour? Express your answer in simplest form.

Mathematics
2 answers:
kvasek [131]3 years ago
6 0

Answer:

68 miles per hour

Step-by-step explanation:

Dvinal [7]3 years ago
5 0

Answer:

68 miles per hour

Step-by-step explanation:

You might be interested in
Angle x is an acute angle in a triangle. If cos x=4/5, then the sin x=
Pepsi [2]
The answer is 3/5 because u need to find the missing side in order to find sin

8 0
3 years ago
Read 2 more answers
Write an equivalent expression using distributive property and simplify for each question
Lana71 [14]

Answer:

Check explanations

Step-by-step explanation:

For all real numbers a,b, and c, the distributive property states that:

a(b + c) = ab + ac

For Part A, we have

2x + 10x = x(2 + 10) = x(12) = 12x

Or

2x + 10x = 2x(1 + 5) = 2x(6) = 12x

For Part B, we have

-4(3x-10)+5(2-6x)=-4*3x--4*10+5*2-5*6x

This simplifies to:

-4(3x-10)+5(2-6x)=-12x+40+10-30x

-4(3x-10)+5(2-6x)=-12x-30x+40+10

-4(3x-10)+5(2-6x)=-42x+50

For the C part, we have:

2(x - 4) + x = 2 \times x - 2 \times 4 + x

2(x - 4) + x = 2x - 8+ x

2(x - 4) + x = 3x - 8

For Part D, we have:

-3-7(3-4x)+8x =  - 3 - 7 \times 3  - 7 \times  - 4x + 8x

We simplify to get:

-3-7(3-4x)+8x =  - 24+28x + 8x

Simplify further to get:

-3-7(3-4x)+8x =-24+36x

4 0
3 years ago
What is the domain of the profit function P= 11w+6Z?
iren [92.7K]

Answer:

Step-by-step explanation: Its C. :)

4 0
3 years ago
Read 2 more answers
Find all real zeros of 4x^3-20x+16
Pani-rosa [81]

Answer:

  {1, (-1±√17)/2}

Step-by-step explanation:

There are formulas for the real and/or complex roots of a cubic, but they are so complicated that they are rarely used. Instead, various other strategies are employed. My favorite is the simplest--let a graphing calculator show you the zeros.

___

Descartes observed that the sign changes in the coefficients can tell you the number of real roots. This expression has two sign changes (+-+), so has 0 or 2 positive real roots. If the odd-degree terms have their signs changed, there is only one sign change (-++), so one negative real root.

It can also be informative to add the coefficients in both cases--as is, and with the odd-degree term signs changed. Here, the sum is zero in the first case, so we know immediately that x=1 is a zero of the expression. That is sufficient to help us reduce the problem to finding the zeros of the remaining quadratic factor.

__

Using synthetic division (or polynomial long division) to factor out x-1 (after removing the common factor of 4), we find the remaining quadratic factor to be x²+x-4.

The zeros of this quadratic factor can be found using the quadratic formula:

  a=1, b=1, c=-4

  x = (-b±√(b²-4ac))/(2a) = (-1±√1+16)/2

  x = (-1 ±√17)2

The zeros are 1 and (-1±√17)/2.

_____

The graph shows the zeros of the expression. It also shows the quadratic after dividing out the factor (x-1). The vertex of that quadratic can be used to find the remaining solutions exactly: -0.5 ± √4.25.

__

The given expression factors as ...

  4(x -1)(x² +x -4)

5 0
3 years ago
Read 2 more answers
Whats 3/z = 2/5. Please HELP!! Due in 20 minutes!!!
attashe74 [19]

Step-by-step explanation:

Hey there!!

Given,

\frac{3}{z}  =  \frac{2}{5}

Cross multiply.

15 = 2z

Therefore, z= 15/2

<em><u>Hope it helps</u></em><em><u>.</u></em><em><u>.</u></em>

3 0
3 years ago
Read 2 more answers
Other questions:
  • Pythagorean Theorem: Jason only has room for a TV that is less than 30^ prime prime wide.
    5·2 answers
  • What is the sum of all positive 1 digit integers that 4221462 is divisible by?
    14·2 answers
  • What is the solution set of -11 &gt; 1 + a?<br>a &gt; -10<br>a -12
    5·2 answers
  • Use the expression 5x 23 to match the following vocabulary words. 1.2coefficient 2.3variable 3.5exponent 4.xbase
    14·1 answer
  • How many square feet is Syria??????
    12·2 answers
  • HELP PLEASE For this distribution, which statement is MOST LIKELY to be true? A) The mean is lower than the median. B) The mean
    11·1 answer
  • PLEASE ANSWER!!! &gt; Evaluate 4 a for a = 5 2/3 . Express your answer in simplest form.
    6·1 answer
  • The length and breadth of a rectangle are in the ratio 5 : 3. if the length is 250 m, find the breadth.
    15·1 answer
  • Select the multiplication equation that could represent the following question: how many 3/8s are in 5/4?
    7·2 answers
  • PLS HELP DUE SOON WILL MARK BRAINLIEST
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!