Anybody can help on anyone of these please quick !!!
Anybody can help on anyone of these please quick !!! - 1

Answers

Answer 1
Answer: 19) B
20) D
21) A
22) B
23) C
24) C

Related Questions

7 copies of the sum of 8 fifths and 4
Im just going to type in all of the questions i need answers with tysm besties -16 t+3.5
If f(x)=6x^2+4x-11, then f(-5)=?
I need help figuring out how to find AC I'm not very good at this part.​
Which expressions have a value of 18? Choose all answers that are correct. A. –3 – 21 B. 7 – (–25) C. 34 – 16 D. –4 – (–22)

Two lines, C and D, are represented by the equations given below:Line C: y = x + 12
Line D: y = 3x + 2

Which of the following shows the solution to the system of equations and explains why?


(4, 14), because one of the lines passes through this point
(4, 14), because the point lies between the two axes
(5, 17), because both lines pass through this point
(5, 17), because the point does not lie on any axis

Answers

Bought lines need to pass same point, so:

x+12 = y    =    y = 3x+2
x+12=3x+2     |-2
x+10=3x         |-x
10=2x             |/2
5=x
x+12 = y   => 5+12 = y =>y = 17

(x,y) => (5,17)

Answer:

5,17

Step-by-step explanation:

What is the product of (2p + 7)(3p2 + 4p – 3)?A=6p3 + 29p2 – 34p + 21
B=6p3 + 29p2 – 22p + 21
C=6p3 + 29p2 + 22p – 21
D=6p3 + 29p2 + 34p – 21

Answers

The answer is C=6p3 + 29p2 + 22p – 21

To calculate the product, we need to multiply each member of each multiplier:
(2p + 7)(3p2 + 4p – 3) = 2p · 3p² + 2p · 4p + 2p · -3 + 7 ·3p² + 7 · 4p + 7 · -3
                                    =    6p³     +     8p²    -     6p    + 21p²   +  28p   -     21
                                    = 6p³ + 8p² + 21p² + 28p - 6p -21
                                    = 
6p³ + 29p² + 22p - 21

Therefore, the product of (2p + 7)(3p2 + 4p – 3) is 6p³ + 29p² + 22p -21

Answer:

c

Step-by-step explanation:

What is the equation of the line, in slope-intercept form, that contains the points (−1, 5) and (2, 2)?y = −3x + 4
y = −x + 1
y = x + 4
y = −x + 4

Answers

So,

First, we need to find the slope by subtracting the y-values and subtracting the x-values.

5 - 2 = 3
-1 - 2 = -3

Now divide the y-result by the x-result.
3/-3 = -1 <-- slope

y = -x + b <-- equation so far

To find the y-intercept, substitute a solution into the equation.

2 = -2 + b

Add 2 to both sides.
4 = b

Now we have our complete equation.
y = -x + 4 <-- option D
y=mx+b
m=slope
b=yintercept
slope=(y2-y1)/(x2-x1)

given the points (-1,5) and (2,2)
slope=(2-5)/(2-(-1))=-3/(2+1)=-3/3=-1
y=-1x+b
sub a oint
(2,2)
x=2
y=2
2=-1(2)+b
2=-2+b
add 2
4=b

y=-x+4

Please help me and this is very hard for me

Answers

I'm assuming you want help with numbers 7 and 8 because multiplication should be easy

so
7.  rico average=15.5mph or 15.5/h
in 2.5 hours how far travel
15.5 in 1 hour
in 2 hours he will travel 2 times 15.5 miles
so in 2.5 hours he will travel 15.5 times 2.5 miles or 38.75


8. use estimation to show reasonable
15.5 can be rounded to 16
16 times 2 is 32
16 times 3 is 48
0.5 is half of 1 so the average is about the answer
(32+48)/2=80/2=40
he will travel about 40 miles (less since you rounded 15.5 up to 16)
so it is reasonable

To find a baseball pitcher's earned average (ERA), you can use the formula Ei=9r where E represents ERA, i represents the number of innings pitched, and r represents the number of earned runs allowed. Solve the equation for E. What is the pitchers ERA if he allows 5 earned runs in 18 innings pitched

Answers

Ei = 9r......E = (9r)/ i
i = 18
r = 5

now we sub
E = (9 * 5) / 18
E = 45/18
E = 2.5......the pitchers ERA is 2.5

A test to detect an infection gives a positive result 98% of the time if a person is infected, and it is 97% accurate for people who are not infected. What percentage of results will be false negatives?a) 1%

b) 2%

c) 3%

d) 5%

Answers

The answer is c.) 2%. Since the question is talking about false negatives, meaning the chance that the results are false, then we take a look at the 98% which represents the chance of giving an accurate result for the people who are not infected meaning for those who are positive. Thus, the answer is 2% because this is the remaining percentage if 100-98%.