In a lab, a substance is heated by 4°C each hour for 28 hours. What was the total change in temperature?

Answers

Answer 1

Answer:

112 difference in tempature

Step-by-step explanation:

multiply 4x28


Related Questions

Determine whether the relation represents y as a function of x

2x+y^2=6

Answers

Answer:

rabi pati le crabby pati vi qui faste un fadi xx

Which two expressions are equivalent?
A. 5x - 5 and 5(x - 5)
B. 5(x - 5) and 5x - 25
C. 5x - 1 and 5(x - 5)
D. 5x(x - 1) and 5x - 5

Answers

Answer:

B

Step-by-step explanation:

Answer:

b

Step-by-step explanation:

Identify the domain of the function shown in the graph.
O A. -7 sys7
B. xso
C. y= 1.5
O O
D. xis all real numbers.

Answers

Answer. X is all real numbers

Step-by-step explanation:

Did it on apex

Can you please help

Solve: x/2 = 7

Answers are:
x=5
X=7
X=9
X=14

Answers

Answer:

X = 14

14/2=7

Answer:

x=7

Step-by-step explanation:

you multiply a 2 to one already there and it eliminates the 2 entirely and then you get x=7

Andrew was making a science project for school. He worked for 6.6 hours the first week, 2.75 hours the second week, and 4.4 hours the third week.

Andrew used the following mental math strategy to find the total number of hours he worked on his project.

Answers

Answer:

Step-by-step explanation:

its wierd but 2.22

Which table corresponds to the graph of the function below?

Answers

Answer:

I belive its the second 1

Step-by-step explanation:

kakalkjslkajslkjslkjalk

Answer: A is the answer

Step-by-step explanation:

-6n-32m+5n
Need help please

Answers

Answer:

Add

6 n and 5n.− 32m − n

Step-by-step explanation:

Question 3
1 pts
Which number could be used as a counterexample to show that the conjecture
"All multiples of 3 are odd" is false?
12
027
O 33
O 15

Answers

The correct answer is A. 12

Explanation:

In mathematics, odd numbers are those numbers that cannot be divided into 2 without using a decimal number, for example, 13 ÷ 2 = 2.5 (decimal number). This does not occur with even numbers such as 26 because these can be divided into 2 and the result is an integer rather than a decimal (26 ÷ 2 =13).

On the other hand, a counterexample is a situation that shows an exception to the rule. In the rule "All multiples of 3 are odd", one counterexample is the number 12 because this is an even number (12 ÷2 = 6). Moreover, this number is a multiply of 3 as 3 can be multiplied by 4 to obtain 12, which shows multiplies of 3 can be even numbers.

I need help I’ll give you points it’s urgent

Answers

Answer:

Step-by-step explanation:

Area: 28.26

Circumference: 12.56

Determine whether the following graph represents a function.

A.function
B. Not function

Answers

b i think...

lmk if it's wrong, if it is i'm sooooo sorry!!

:)

Assume that the standard deviation of daily returns for Marcus, Inc. stock in a recent period is 1.5 percent. Furthermore, a 95 percent confidence interval is desired for the maximum loss. Daily returns are normally distributed, and the expected daily return is 0.05 percent. What is the lower boundary of the maximum expected loss

Answers

Answer:

= - 2.43%

Step-by-step explanation:

From the information given:

Since the variable (daily returns) is normally distributed, Then, using empirical rule at 95% confidence interval level, we have:

[tex]( \mu - 1.96 \sigma \ , \ \mu + 1.96 \sigma)[/tex]

where;

The expected mean daily return [tex]\mu = 0.05 \%[/tex]

The standard deviation [tex]\sigma = 1.5\%[/tex]

Given that the 95% confidence interval is expected to be a maximum loss, then the probability is left-tailed which is 1.65[tex]\sigma[/tex] away from the average.

Thus the distribution of the lower boundary can be computed as:

= [tex](0.05 - 1.65 \times 1.5)\%[/tex]

= [tex](0.05 - 2.475)\%[/tex]

= [tex]( - 2.425)\%[/tex]

= - 2.43%

the quotient of 15 and y

Answers

Answer:

Because we are working with a variable (y) and we don't know what number it represents, we can only write down what the calculation would be, but we can't get the actual number answer.

15/y

Step-by-step explanation:

A quotient is the answer to a division.

The statement "the quotient of 15 and y" can be written as 15/y

We have,

The statement "the quotient of 15 and y".

This can be written as,

15/y

The expression "15/y" represents the quotient of 15 and y.

When you divide 15 by y, you are calculating the quotient or the result of the division.

The numerator (15) represents the dividend, which is the number being divided, and the denominator (y) represents the divisor, which is the number by which you divide.

Thus,

The statement "the quotient of 15 and y" can be written as,

15/y

Learn more about expressions here:

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what is 2*2 please answer this question

Answers

Answer:

4

Step-by-step explanation:

Answer:

5-1

Step-by-step explanation:

If the temperature is -4 and rises by 12 , what is the new temperature ?

Answers

Answer:

-4 +12 = 8

the new temperature is 8 degree

Step-by-step explanation:

Joe has saved $50. He wants to
buy 3 graphic novels that cost $13 each.
Can Joe afford the graphic novels?

Answers

Answer:

Yes, Joe can afford the graphic novels.

Explanation:

Joe has $50Each graphic novel costs $13Joe wants 3 graphic novels

[ Multiply ]

13 · 3 = 39

Joe will be spending at total of $39 if he buys 3 graphic novels. He will have a total of $11 left over. Joe can afford the graphic novels.

If a person drives his car in the speed 50 miles per hour, how far can he cover the distance in 2.5 hours ?

Answers

Answer:

Hey there!

50 miles = 1 hour

x miles = 2.5 hours

50/1= x/2.5

x=2.5x50

x=125

The car can go 125 miles.

Hope this helps :)

Answer:

125miles

Step-by-step explanation

distance=speed *time

d=50*2.5

d=125m

Which phrase is equivalent to “Franco must work a minimum of 32 hours”? The number of hours Franco works must be less than 32. The number of hours Franco works must be greater than 32. The number of hours Franco works must be less than or equal to 32. The number of hours Franco works must be greater than or equal to 32.

Answers

Answer:

The number of hours Franco works must be greater than or equal to 32.

Step-by-step explanation:

The number of hours Franco works is greater than or equal to 32. Then the correct option is D.

What is inequality?

Inequality is simply a type of equation that does not have an equal sign in it. Inequality is defined as a statement about the relative size as well as is used to compare two statements.

The statement is given below.

“Franco must work a minimum of 32 hours

Let x be the number of hours France works.

According to the statement, the inequality equation will be given as

x ≥ 32

The number of hours Franco works is greater than or equal to 32.

More about the inequality link is given below.

https://brainly.com/question/19491153

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make doubles. add 5+6

Answers

Answer:11

Step-by-step explanation:

The sum of two numbers is 50. The first number is 18 less than the 2nd number. What are the
2 numbers?

Answers

Answer:

2y + 2 + y = 50 (combine like terms)

3y + 2 = 50

3y = 50 - 2

3y = 48

y = 16

Substitute 16 for y in either equation 1 or 2 and solve for x (I chose equation 1):

x + 16 = 50

x = 50 - 16

x = 34

Step-by-step explanation:

1. Function s is y = 5x - 4
(a) What is the inverse of function s? Show steps to finding it.
(b) Graph the function & its inverse on the same grid. Show at least 3 points on each line.
(c) Is the inverse of function s a function? Explain your answer.

Answers

Answer:

duhuhduiwehiufhewufuewgewfguiwgf

Step-by-step explanation:

how do you know if an number composite or not

Answers

Answer:

A prime number has only two factors: 1 and itself. A composite number has more than two factors

Step-by-step explanation:

Can i have a thanks?

Use the Distributive Property to multiply 9 and 37 in your head.

What is the answer?

Answers

Answer:

The answer is 333.

Step-by-step explanation:

Using the distributive property, you can do:

9 x 30 = 270

9 x 7 = 63

270 + 63 = 233.

Then, just check with a calculator. It's correct.

Hope this helps!

Answer: 333

Step-by-step explanation:

9x(30+7) = (9x30) + (9x7)

270+63=333

Find the volume of a cylinder with height 25cm and radius 5cm

Answers

Answer:

1963.5

-------------

Answer:

1,932 cm approxmately.

Step-by-step explanation:

Your formula is V= π5²h

V= 3.14 x 5² x 25

V= ≈1932 cm

What is the solution of the inequality x3 + 3x2 > 7x + 6?

Answers

Answer:

Inequality form : - 5 + squareroot13 / 2 < x < - 5- squareroot13 / 2 or x > 2

Step-by-step explanation: Solve the inequality by finding the roots and creating test intervals.

I hope this helps you out! :)

The solution to the inequality is [tex]\rm \left (\dfrac{-5+\sqrt{13} }{2} < x < \dfrac{-5-\sqrt{13} }{2} \right ) \ or \ x > 2[/tex].

The Interval Notation is [tex]\rm \left (\dfrac{-5+\sqrt{13} }{2} , \dfrac{-5-\sqrt{13} }{2} \right ) \cup (2, \infty)[/tex].

What is inequality?

In Mathematics, the relationship between two values that are not equal is defined by inequalities.

The given inequality is;

[tex]\rm x^3 + 3x^2 > 7x + 6[/tex]

The solution to the inequality is determined in the following steps given below.

[tex]\rm x^3 + 3x^2 > 7x + 6\\\\\rm x^3 + 3x^2-7x-6 > 7x + 6-7x-6\\\\ x^3 + 3x^2-7x-6 > 0\\\rm \\ x(x^2+5x+3)-2(x^2+5x+3) > 0\\\\ \rm x^3+5x^2+3x-2x^2-10x-6 > 0\\\\ x(x^2+5x+3)-2(x^2+5x+3) > 0\\\\\rm (x-2)(x^2+5x+3) > 0[/tex]

Now finding the roots of the inequality;

[tex]\rm (x-2)(x^2+5x+3) > 0 \\\\(x-2) \left (\dfrac{-5\pm\sqrt{25-12} }{2} \right )\\\\(x-2)\left (\dfrac{-5+\sqrt{13} }{2} \right )\left (\dfrac{-5-\sqrt{13} }{2} \right )[/tex]

Hence, the solution to the inequality is [tex]\rm \left (\dfrac{-5+\sqrt{13} }{2} < x < \dfrac{-5-\sqrt{13} }{2} \right ) \ or \ x > 2[/tex].

Learn more about inequality here;

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How would the underline look like

Answers

Answer:

the correct answer is C

If f(x) = 3x2 + 1 and g(x) = 1 – x, what is the value of (f – g)(2)?
12
14
36
38

Answers

Answer: 14

Step-by-step explanation:


Describe the shape of the distribution shown in the dot plot.
The dot plot displays the golf scores from a golf tournament.
140
132
134
136
138
golf score (strokes)

A. Uniform
B. Bimodal
C. Left-Skewed
D. Right-Skewed
E. Symmetrical
F. Bell-shaped

Answers

Answer:

The answer is C. Left-Skewed

MATCH THE EXPRESSIONS WITH THE VARIABLES IN IT! HELP I APPRECIATE IT

Answers

x:

[tex]3x^{2} +x+9[/tex]

y:

[tex]4y+7[/tex]

[tex]6y^{2} +y+3[/tex]

x and y:

[tex]2x-3y^{3} -4[/tex]

[tex]5x+3y+6[/tex]

In segment AC, the midpoint is B. If segments AC = 8 AB = 3x-1 find x.

Answers

Answer:

If B is the midpoint, it means

AC=2AB

8= 2(3x-1)

8= 6x-2

8+2= 6x

10= 6x

x= 10/6

x= 1.67

Hope it helps :-)

Brian is planning to donate 13% of his income to charity. His weekly paycheck is $667.63. How much does Brian plan to donate?

Answers

86.79 i used the calculator

Answer:

Brian is planning on donating $86.79.

Step-by-step explanation:

The first step is to write 13% in decimal form. We then multiply, .13 x 667.63=$86.79

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