Ask question

Ask question

All categories

2 years ago

14

5. Craig ran 3 1/2 miles in 1/9 of an hour. What is the unit rate for the number of miles Craig ran per hour? A. 9/1 B. 3/1 C. 6

3/2 D. 1/2

1 answer:

Pie2 years ago

5 0

Answer:

63/2

Step-by-step explanation:

You might be interested in

) Make a scatter plot of mice survival rate (response) against aspartame concentration (explanatory) and add the regression line

Mashutka [201]

Answer & Step-by-step explanation:

Regression studies the relationship between independent / explanatory (causal) variable, dependent / response (effected) variable. Scatter plot is a diagrammatic representation of regression.

Aspartame Concentration, being a toxic substance, is likely to have negative regression relationship with mice survival rate. It implies that higher concentration leads to lower mice survival, & lower concentration leads to higher mice survival.

The relationship can be strong or weak, depicted by 'r' magnitude, depending upon the intensity of concentration impact on survival. If more percent of the variation in survival rate can be explained by variations in concentrations, regression coefficient is high. If less percent of the variation in survival rate can be explained by variations in concentrations, regression coefficient is low

4 0

3 years ago

A rectangle has a perimeter of 48 feet and a length of 14 feet. Which equation can you solve to find the width?

xeze [42]

48 = 14*2 + 2n
2n + 28 = 48
Ans. A

4 0

3 years ago

Read 2 more answers

Please help i am confused

Leno4ka [110]

Answer: First Box, Fourth Box

Step-by-step explanation: I took the test

8 0

2 years ago

Craig is standing on his apartment balcony and locates his car in the street-level parking lot below. The angle of depression of

murzikaleks [220]

Answer:

B. 147 feet

Step-by-step explanation:

We can easily imagine a right triangle for this problem. The height of the triangle is what we're looking for (x), at the bottom of x, we have the right angle formed by the building and the ground. The other side of that right angle is the distance to the car (300 ft). On top of the x side, we have the angle of 63 degrees looking down, since Craig is looking down by 27 degrees (90 - 27 = 63).

We can easily apply the Law of Sines that says:

$\frac{a}{sin(A)} = \frac{c}{sin(C)}$

Then we can isolate c and fill in the values:

$c = \frac{a * sin(C)}{sin(A)} =\frac{300 * sin(27)}{sin(63)} = 153$

So, we know Craig's eyes are 153 feet above ground... since Craig is 6 feet tall, the balcony sits at 147 feet high (153 - 6 = 147).

6 0

3 years ago

Equation 1: x + 3y = 1

Shalnov [3]

Answer:

Step-by-step explanation:

You will eliminate y because 3y-3y=0

5 0

3 years ago