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serious [3.7K]
2 years ago
13

PLEASEEEE HELP ME OUT!

Mathematics
1 answer:
lubasha [3.4K]2 years ago
8 0
There are no real solutions to that equation.
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Write the point-slope form of an equation of the line through the points (-1, 4) and (-2, 2)
jasenka [17]

Answer:

<h3>The answer is option B</h3>

Step-by-step explanation:

Equation of a line is y = mx + c

where

m is the slope

c is the y intercept

To find an equation of a line given two points first find the slope / gradient

Slope of the line using points (-1,4) and (-2,2) is

m =  \frac{2 - 4}{ - 2 + 1}  =  \frac{ - 2}{ - 1}  = 2

So the equation of the line using point (-1,4) is

<h3>y - 4 = 2( x + 1)</h3>

Hope this helps you

4 0
3 years ago
89. In a drawing, a jar holds the numbers 1 to 8. If you draw three numbers to form a three-digit number (without replacement),
torisob [31]

Answer:

1: D. 1/336

Explanation:

10 x 9 x 8 = 720

There are 720 ways for them to come in first, second and third place.

2. Probability = 1/8 x 1/7 x 1/6 = 1/336

The probability is 1/336 or 0.002976.

7 0
3 years ago
For f(x) =4x+1 g(x)=x²-5, find (f•g)(x)​
Inessa05 [86]

Answer:

(f · g)(x) = 4x³ + x² - 20x - 5

General Formulas and Concepts:

<u>Pre-Algebra</u>

  • Distributive Property

<u>Algebra I</u>

  • Combining Like Terms
  • Expand by FOIL (First Outside Inside Last)

Step-by-step explanation:

<u>Step 1: Define</u>

f(x) = 4x + 1

g(x) = x² - 5

(f · g)(x) is f(x)g(x)

<u>Step 2: Find (f · g)(x)</u>

  1. Substitute:                    (f · g)(x) = (4x + 1)(x² - 5)
  2. Expand [FOIL]:             (f · g)(x) = 4x³ - 20x + x² - 5
  3. Combine like terms:    (f · g)(x) = 4x³ + x² - 20x - 5
3 0
2 years ago
Read 2 more answers
What is the probability that out of 125 babies born, at least 70 will be girls?
mote1985 [20]

Answer:

Well just looking at the choices can lead you to the answer right away.

Well since the probability of boys and girls are equal, its 50/50. And since 125 in half well about is about 60-62 and the minimum amount of girls has to be 70. It can’t be higher then half and the choices remain to less then half not including 50%. So that eliminates all 3 choices except B.

3 0
3 years ago
What cross section when a cylinder is cut perpendicular to its base
Vika [28.1K]

Answer:

triangle

Step-by-step explanation:

Cross sections perpendicular to the base and through the vertex will be triangles. Below, you can see a plane cutting through the pyramid, part of the pyramid removed, and the cross section. You could also take a slice parallel to the base. Cross sections parallel to the base will be hexagons

5 0
3 years ago
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