Mathematics College

ITS BASICALLY WHO DID IT RIGHT GUYS, JUST PUT THE PEOPLES NAMES.

Answers

Answer 1

Answer:

marcus

Lilian

Pamela

Step-by-step explanation:

simplefy the expresion wich will equal 58

Answer 2

Answer:

1) Marcus 2) Lillian 3) Pablo

Step-by-step explanation:

For these type of expressions you have to use "PEMDAS"

Parentheses

Exponents

Multiplication

Division

Addition

Subtraction

(IT ALWAYS HAS TO GO FROM LEFT TO RIGHT)

1) Marcus Why Marcus?

Because, Melanie added instead of dividing first.

Melanie: Marcus:

8 x 7 + 14 / 7 8 x 7 + 14 / 7

56 + 14 / 7 56 + 14 / 7

70 / 7 56 + 2 <---

10 58

2) Lillian Why Lillian?

Because, Landon Multiplied instead of dividing.

Lillian: Landon:

50 / ([tex]5^{2}[/tex] - 15) x 5 50 / ([tex]5^{2}[/tex] - 15) x 5

50 / (10) - 5 50 / (10) - 5

5 x 5 50 / 50 <---

25 1

3) Pablo Why Pablo?

Because, Pamela didn't follow the L --> R- (Left to Right) -Rule.

Pablo: Pamela:

(12 + [tex]2^{2}[/tex]) / 4 x 5 (12 + [tex]2^{2}[/tex]) / 4 x 5

([tex]14^{2}[/tex]) / 4 x 5 (12 + 4) / 4 x 5 <---

196 / 4 x 5 16 / 4 x 5

49 x 5 4 x 5

245 20

Related Questions

Which function models the sum?

Answers

I can’t see it I just see black

the ratio of lampreys to oarfish in the marine aquarium was 27:22 if there were 162 lampreys in the aquarium how many oarfish were there

Answers

Answer:

132

Step-by-step explanation:

First divide the number of lampreys by the ratio.

162/27=6

Then multiply the result (6) by the oarfish part of the ratio

22*6=132

A shoe box is 4 inches wide, 3 inches deep, and 12 inches long. What is the volume?

I know it's 144 but 144 what?

Answers

Answer:

144in square

Step-by-step explanation:

Help me help me pls!

Answers

Answer:

13.6 units (to 3 significant figures)

Step-by-step explanation:

C ( -4,6) and D (-4,-5)

the formula for distance is : √(x2 - x1)² + (y2-y1)²

in this case x1= -4 , x2= -4 and y1 =6 , y2 = -5

so substitute the values and you will get the answers

can somebody help me with math TwT:

question one 1: Which number(s) are 6 units from zero on a number line?

1. 3
2. 6
3. -6
4. 12

----------------------------------------------------------------------------
Question 2 ^^: Which comparison is not correct?

1. -3 < 4
2. 3 < 6
3. 1 > -9
4. -8 > -6

tell me the answers also for question 1 its either one or more than one answer ^^ ty and please don’t steal my points :(

Answers

1. 12 (i think)

i don't know about question 2

Answer: -8 > -6

Step-by-step explanation:

pleeeaassee First person get brainliest!!!!

Answers

Answer:

D. 32 inches 65-33=32 so its 32 inches

Answer:

so answer is b.42

Step-by-step explanation:

3 7

6 14

9 21

every time width increase by 3 length increase by 7 so:

12 28

15 35

18 42

At a school, 40% of the sixth-grade students said that hip-hop is their favorite kind of music. If 68 sixth-grade students prefer hip hop music, how many sixth-grade students are at the school?

Answers

Answer:

170

Area = 5x + 25

therefore,

l x w = 5x + 25

Since the question states that the length is x more than the width, so we can make the following statement:

w = l + x

With this, we can substitute it to the first statement we made, l x w = 5x + 25,

l x (l + x) = 5x + 25

[tex]l^{2}[/tex] + lx = 5x + 25

lx - 5x = 25 - [tex]l^{2}[/tex]

x(l - 5) = 25 - [tex]l^{2}[/tex]

x = [tex]\frac{25 - l^{2}}{l - 5}[/tex]

From this, we can find w by substituting it in the statement we made earlier, w = l + x,

w = [tex]l + \frac{25 - l^{2}}{l - 5}[/tex]

someone please help these questions are due at 11;59 today please help urgent

1)A company produces steel rods. The lengths of the steel rods are normally distributed with a mean of 258.5-cm and a standard deviation of 2.3-cm. For shipment, 30 steel rods are bundled together.

Find the probability that the average length of a randomly selected bundle of steel rods is between 258.5-cm and 259-cm.
P(258.5-cm < M < 259-cm) =

Enter your answer as a number accurate to 4 decimal places. Answers obtained using exact z-scores or z-scores rounded to 3 decimal places are accepted.
2)
A company produces steel rods. The lengths of the steel rods are normally distributed with a mean of 127.1-cm and a standard deviation of 1.6-cm. For shipment, 6 steel rods are bundled together.

Find P17, which is the average length separating the smallest 17% bundles from the largest 83% bundles.
P17 =
-cm
Enter your answer as a number accurate to 2 decimal places. Answers obtained using exact z-scores or z-scores rounded to 3 decimal places are accepted.

Answers

Answer:

1) P(258.5-cm < M < 259-cm) = 8.71%.

2) P17 = 125.57cm

Step-by-step explanation:

Normal Probability Distribution:

Problems of normal distributions can be solved using the z-score formula.

In a set with mean [tex]\mu[/tex] and standard deviation [tex]\sigma[/tex], the z-score of a measure X is given by:

[tex]Z = \frac{X - \mu}{\sigma}[/tex]

The Z-score measures how many standard deviations the measure is from the mean. After finding the Z-score, we look at the z-score table and find the p-value associated with this z-score. This p-value is the probability that the value of the measure is smaller than X, that is, the percentile of X. Subtracting 1 by the p-value, we get the probability that the value of the measure is greater than X.

Question 1:

Mean of 258.5-cm and a standard deviation of 2.3-cm, which means that [tex]\mu = 258.5, \sigma = 2.3[/tex]

Find the probability that the average length of a randomly selected bundle of steel rods is between 258.5-cm and 259-cm.

This is the pvalue of Z when X = 259 subtracted by the pvalue of Z when X = 258.5.

X = 259

[tex]Z = \frac{X - \mu}{\sigma}[/tex]

[tex]Z = \frac{259 - 258.5}{2.3}[/tex]

[tex]Z = 0.22[/tex]

[tex]Z = 0.22[/tex] has a pvalue of 0.5871

X = 258.5

[tex]Z = \frac{X - \mu}{\sigma}[/tex]

[tex]Z = \frac{258.5 - 258.5}{2.3}[/tex]

[tex]Z = 0[/tex]

[tex]Z = 0[/tex] has a pvalue of 0.5

0.5871 - 0.5 = 0.0871

0.0871*100% = 8.71%. So

P(258.5-cm < M < 259-cm) = 8.71%.

Question 2:

Mean of 127.1-cm and a standard deviation of 1.6-cm, which means that [tex]\mu = 127.1, \sigma = 1.6[/tex]

Find P17, which is the average length separating the smallest 17% bundles from the largest 83% bundles.

This is the 17th percentile, which is X when Z has a pvalue of 0.17. So X when Z = -0.954.

[tex]Z = \frac{X - \mu}{\sigma}[/tex]

[tex]-0.954 = \frac{X - 127.1}{1.6}[/tex]

[tex]X - 127.1 = -0.954*1.6[/tex]

[tex]X = 125.57[/tex]

P17 = 125.57cm

Is the tank filling or draining

Answers

Answer:

the tank is filling- hence the +8

Step-by-step explanation:

what is the resistance of a circuit if it has a voltage of 50v and a current of 8 ? and show me the calculations

Answers

Answer:

25/4 ohm

Step-by-step explanation:

Use Ohm‘s Law: V=IR which stands for Voltage = Electric Current * Resistance.

Plug in your given values: 50 = 8R. R = 25/4 ohm.

19) An airplane has 150 passengers. 48% of the passengers are traveling alone.
How many passengers are traveling alone?

Answers

Answer:

72 passengers

Step-by-step explanation:

What we know:

There are 150 passengers in total48% of the passengers are travelling alone

To find how many passengers are travelling alone, multiply 150 by 48%.

48% ⇒ 0.48 as a decimal

150 × 0.48 = 72

Therefore, 72 passengers are travelling alone.

I hope this helps!

Answer:

Step-by-step explanation:

A quarter is tossed. How many total number of outcomes are there? total number of outcomes

Answers

Answer:

Step-by-step explanation:

Answer:

2 is the correct answer please mark brainliest

Step-by-step explanation:

Stewart's pencil is 4.1 centimeters more than twice the length of Nora's pencil. Nora's pencil is 5.5 cm
long.
Which equation can be used to find s, the length of Stewart's pencil in centimeters?
AS = 2(4.1) - 5.5
CS = 2(4.1) + 5.5
В
S = 2(5.5) + 4.1
DS = 2(5.5) - 4.1

Answers

Answer:

S = 2(5.5) + 4.1

Answer: s= 2(5.5) + 4.1

4. Tori bought x shares of Mattel stock for m dollars per share. She sold
all of the shares months later for y dollars per share. Express her cap-
ital gain or loss algebraically.

Answers

Answer:

mx = y

y = mx

Step-by-step explanation:

If she pays m per share, and x represents each share, you will multiply m and x. If she sold all them for the value of y. Then you set mx equal to y.

mx = y

y = mx

There are 4 classrooms for fifth grade and 4 classrooms for sixth grade at a school. Each classroom has 20 students. A teacher is planning a field trip for some fifth and sixth grade students at this school. The teacher knows the following information:
90% of fifth and sixth grade students have permission to go on the trip.
4 teachers are going on the trip.
The school requires 1 parent volunteer for every 8 students going on the trip.
Part A
How many parent volunteers are needed to go on the trip?

Answers

Answer:

Step-by-step explanation:

Fifth grade has 80 students and sixth grade has 80 students. so if you get 90% of both then you have 72 and 72. Add and divide by 8 and you have the answer of 18 parent volunteers going.

Answer:

18 pls give brainliest i never get them :(

Step-by-step explanation:

please help me. I can't find this out

Answers

Answer:

-1

-1,3

7fufuviiviviv8h

-1
-1
5
-1,3
hope this helps!<3

Solve the linear system below using the substitution method.
y = 5x – 22
3x +2y=34

Answers

Answer:

Use photo math, it will explain all the steps

Answer:

x = 6 , y = 8 ( 6 , 8 )

Step-by-step explanation:

If we solve the linear system that you gave us,

y = 5x – 22

3x +2y=34

We get that x is 6 and y is 8.

In other words, since it's a point, it should be, ( 6 , 8 )

Help please. Mathematics question 6.

Answers

[tex]{ :{ \implies { \tt{ \blue{ \frac{1}{4} x + 3 - \frac{1}{3} x + ( - 2)}}} }}\\ \\ \\ { : { \implies{ \blue{ \tt{ \frac{1}{4} x - \frac{1}{3} x + 3 - 2}}}}}[/tex]

[tex]{ : { \implies{ \tt{ \blue{ \frac{1}{4} x - \frac{1}{3} x + 1}}}}} \\ \\ \\ { : { \implies{ \tt{ \blue{ \frac{3x - 4x + 12}{12}}}}}} [/tex]

[tex]{ :{ \implies{ \blue{ \tt{ \frac{12 - x}{12}}}}}} \\ \\ \\ { : { \implies{ \blue{ \tt{1 - \frac{x}{12}}}}}} [/tex]

option ( D ) is correct

Oh god I don’t know

the table above represents what

Answers

Answer: exponential decay

Step-by-step explanation:

Exponential decay means that it's getting smaller and you can see that the numbers are getting smaller on the y axis.

Hope this helps :)

Does anyone know the answer to this and how to solve it? I’m completely lost-

Answers

Answer:

314

Step-by-step explanation:

Does the line cuts through the diameter of the circle?

If so just apply π * 10^2 = 314.15 radius is just 20/2 = 10

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