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Dvinal [7]
4 years ago
5

Seth traveled 1 mile in 57.1 seconds. About how fast does Seth travel in miles per hour

Mathematics
1 answer:
Mama L [17]4 years ago
7 0

<span>63.047

/2shortttt        .tt</span>
You might be interested in
68 less than 55 times a number is equal to the number.<br><br> I will make brainliest
kap26 [50]

Answer:

5x - 68 = x

Step-by-step explanation:

number = x

5x - 68 = x

Solve for x:

5x - 68 = x

-68 = x - 5x

-68 = -4x

68 = 4x

x = 68/4

x = 17

7 0
3 years ago
Read 2 more answers
For the function f(x)=−x^2+x−7, find f(1)
tino4ka555 [31]

Answer:

f(1) = -7

Step-by-step explanation:

Step 1: Define

f(x) = -x² + x - 7

f(1) = x = 1

Step 2: Substitute and Evaluate

f(1) = -(1)² + 1 - 7

f(1) = -1 + 1 - 7

f(1) = -7

8 0
3 years ago
8. The distribution for the time it takes a student to complete the fall class registration has mean of 94 minutes and standard
Alborosie

Answer:

Mean = 94

Standard deviation = 1.12

The sampling distribution of the sample mean is going to be normally distributed, beause the size of the samples are 80, which is larger than 30.

Step-by-step explanation:

The Central Limit Theorem estabilishes that, for a random variable X, with mean \mu and standard deviation \sigma, the sample means with size n of at least 30 can be approximated to a normal distribution with mean \mu and standard deviation, which is also called standard error s = \frac{\sigma}{\sqrt{n}}

In this problem, we have that:

\mu = 94, \sigma = 10

By the Central Limit Theorem

The sampling distribution of the sample mean is going to be normally distributed, beause the size of the samples are 80, which is larger than 30.

Mean = 94

Standard deviation:

s = \frac{10}{\sqrt{80}} = 1.12

7 0
3 years ago
Which statement is true about the extreme value of the given quadratic equation.
RSB [31]

The complete question is

"which statement is true about the extreme value the given quadratic equation? y = -3x^2 + 12x - 33

Oa. The equation has a maximum value with a y coordinate of -27

Ob. The equation has a minimum value with a y coordinate of -21

Oc. the equation has a minimum value with a y coordinate of -27

Od. The equation has a maximum value with a y coordinate of -21​"

The quadratic equation has the extreme value at the vertex with a y-coordinate of -21. so, the correct option is D.

<h3>What is a quadratic equation?</h3>

A quadratic equation is the second-order degree algebraic expression in a variable. the standard form of this expression is  ax² + bx + c = 0 where a. b are coefficients and x is the variable and c is a constant.

The given quadratic equation is

y=-3x^2+12x-33

x = -b/2a

For the given equation the vertex :

x = -12/2(-3) = 2

The value of y at x = 2 is:

y = -3(2²) + 12(2) - 33

y = -12 + 24 - 33

y = -21

The extreme is the maximum for the given equation.

The correct choice is D.

Learn more about quadratic equations;

brainly.com/question/13197897

#SPJ1

6 0
2 years ago
PLEASE HELP ASAP
Leno4ka [110]

Answer:

x=10

Step-by-step explanation:

we know that

If the lines m and n are parallel

then

130\° = (8x+50)\° ----> by corresponding angles

solve for x

8x=130-50\\8x=80\\x=10

7 0
3 years ago
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