All categories

2 years ago

Which of the following statements best describes the solution to the problem below?

Mathematics

1 answer:

ZanzabumX [31]2 years ago

4 0

Answer:

Step-by-step explanation:

Using rule of negatives and positives:
The rules for multiplication and division are simple: If both numbers are positive, the result is positive. If both numbers are negative, the result is positive. If one number is positive and the other is negative, the result is negative.

This is why C is the correct statement

You might be interested in

How do you solve this?

Novay_Z [31]

Let's solve your equation step-by-step.

−7x=−2x2+15

Step 1: Subtract -2x^2+15 from both sides.

−7x−(−2x2+15)=−2x2+15−(−2x2+15)

2x2−7x−15=0

Step 2: Factor left side of equation.

(2x+3)(x−5)=0

Step 3: Set factors equal to 0.

2x+3=0 or x−5=0

x= $\frac{-3}{2}$ or x=5

Answer:

x= $\frac{-3}{2}$ or x=5

Hope this helps

7 0

3 years ago

Peyton is a sprinter who can run the 40-yard dash in 4.5 seconds. he converts his speed into miles per hour, as shown below.

oksano4ka [1.4K]

The correct question is
Peyton is a sprinter who can run the 40-yard dash in 4.5 seconds. He converts his speed into miles per hour, as shown below
Which ratio is incorrectly written to convert his speed?

the picture in the attached figure

we know that
The term (5280 ft/1 mi) is incorrect
"Feet" needs to be on the bottom to cancel with the previous term.
"Mile" needs to be on top in the numerator so that the answer can be expressed in "miles per hour"

the correct term is (1 mi/5280 ft)

5 0

3 years ago

7.1.13 Question Help Use the sample data and confidence level given below to complete parts (a) through (d). A research institut

r-ruslan [8.4K]

Answer:

The Point estimate of the Population proportion E = 0.039≅0.04

Step-by-step explanation:

Step(i):-

Given that the sample size 'n' = 992

and x = 570

The Population proportion

$p = \frac{x}{n} = \frac{570}{992} = 0.5745$

Step(ii):-

The point estimate of the Population proportion is determined by

$E = 2.576 \frac{\sqrt{0.574(1-0.574)} }{\sqrt{992} }$

E = 0.039≅0.04

Final answer:-

The point estimate of the Population proportion E = 0.039≅0.04

6 0

3 years ago

Darnell is planning on selling his car next summer, which is one year from now. He wants to make sure his car is worth at least

tester [92]

Answer:

10,000 miles

Step-by-step explanation:

First of 25,000 miles =8,000 dollars to the cars worth so the maxium account you can add to the mileage is 10,000 in order to keep the regulations and guidelines of car companies.

7 0

3 years ago

A random sample (Sample 1) of the Mercedes's average driving speed (km/h) is: 120, 142, 142, 165, 132, 130, 156, 136, 167, 139,

ziro4ka [17]

The median of Mercedes' speed is 144 km/h.

The median of Audi's speed is ~133,6 km/h.

8 0

3 years ago