Answer:
9°C
Step-by-step explanation:
quantity of heat energy absorbed is expressed as;
Q = mcΔt
m is the mass
c is the specific heat capacity
Δt is the change in temperature
Substitute the given values
3456 = 3 * 128 Δt
3456 = 384Δt
Δt = 3456/384
Δt = 9°C
Hence the temperature change is 9°C
write an equation represented by the graph shown !
Answer:
y = |x+1.5|
Step-by-step explanation:
Start with the graph of y = |x|. To shift it left by 1.5 units, replace x with x+1.5.
General rules for shifting graphs:
Shift y = f(x) up by a units: y = f(x) + aShift y = f(x) down by a units: y = f(x) - aShift y = f(x) left by a units: y = f(x + a)Shift y = f(x) right by a units: y = f(x - a)Answer:
y=abs(x+1.5)
Step-by-step explanation:
50 points
PLEASE HELP ASAP
Answer:
1
Step-by-step explanation:
What should be done to these equations in order to solve a system of equations by elimination?
I- 3x + 2y = 16
12x + 5y = 21
Choose one correct answer:
Multiply the first equation by 2 and the second equation by 3.
Multiply the first equation by 3.
O Nothing needs to be done, since they both equal have 2's and 3's for coefficients.
O Multiply the first equation by
3 and the second equations by 2
Answer:
B is the correct answer
Step-by-step explanation:
Since it gets rid of the y so you could find the x and then work around to find the Y.
Answer:
Multiply the first equation by 3.
Step-by-step explanation:
The diameter of a circular coffee can lid is 5 inches. Which measurement is closest to the area of the coffee can lid? A. 7.9in. B. 19.6in C. 31.4in D. 78.5in
Answer:
Step-by-step explanation:
can someone pls help and pls dont get it wrong
Answer:
D
Step-by-step explanation:
The inverse property states that any number multiplied by its reciprocal equals 1.
What is the value of 6n
2 when n =3?
Answer:
54
Step-by-step explanation:
6n²
= 6(3)²
= 6(9)
= 54
EASY MATH PLEASE HELP!! : )
NO LINKS PLEASE
EXPLANATION REQUIRED
I WILL GIVE BRAINLIEST!!
Answer:
A.
hope this helps
have a good day :)
Step-by-step explanation:
Answer:
D
Step-by-step explanation:
Ed's answer is correct but I would have just multiplied each side by the reciprocal of 2/3 which is 3/2, which will isolate 'm'
m = 1/4 x 3/2
m = 3/8
What is the formula for finding the area of a rhombus! ! Help i’m too slow for this.
Answer:
If it is using base and height: A = b x h
If using Trigonometry: A = b2 x Sin(a)
Step-by-step explanation:
A = Area
B= Base
H= Height
Rewrite using a fractional exponent
[tex]\sqrt[3]{7^2}
Answer:
9π cm³
Step-by-step explanation:
We require to find the height (h) of the cylinders
The volume (V) is calculated as
Ah ( A is the base area and h the height ), then
3πh = 18π ( divide both sides by 3π )
= 6
Then the height of the smaller cylinder = 6 - 3 = 3 cm
3π × 3 = 9π cm³ ← volume of smaller can
Step-by-step explanation:
PLEASE HELP!!
Let g(x) = -5x + 2 I’m confused
Answer:
7
Step-by-step explanation:
We need to plug in -1 for x. Here's what we get:
[tex]-5(-1)+2[/tex] multiplying two negative numbers gives us a positive number
[tex]5+2[/tex]
= 7
Answer:
g(-1) = 7
Step-by-step explanation:
this is a function, when it says f(x) or g(x), whatever, and then gives, in this case g(-1), it wants you to substitute -1 into all the x values.
Therefore, our equation is g(-1)= -5 (-1) +2
this simplifies to g(-1)= 7
Carmen is putting together a business plan for her sandwich restaurant, Subs Away, so she can expand to another location. She wants to include some information about recent sales but only has certain information about last month's sales. She currently offers ham, turkey and vegetarian sandwiches. She sells the ham sandwiches for $10 each and the turkey sandwiches for $11.25. Answer key
Complete Question
Carmen is putting together a business plan for her sandwich restaurant, Subs Away, so she can expand to another location. She wants to include some information about recent sales but only has certain information about last month's sales. She currently offers ham, turkey and vegetarian sandwiches. She sells the ham sandwiches for $10 each and the turkey sandwiches for $11.25.
Last Month's Vegetarian Sales
Total Sandwiches Sold 75
Total Income $712.50
How much does Carmen charge for the vegetarian sandwich?
Answer:
[tex]X=9.5[/tex]
Step-by-step explanation:
From the question we are told that:
Total Vegetarian Sandwiches Sold [tex]T_{vs}=75[/tex]
Total Vegetarian Sandwiches Income [tex]T_{vi}=$712.50[/tex]
Generally the equation for Cost of vegetarian sandwich is mathematically given by
[tex]X=\frac{Total\ income\ from\ vegetarian\ sandwich}{No.\ of\ vegetarian\ sandwich\ sold}[/tex]
[tex]X=\frac{T_{vi}}{T_{vs}}[/tex]
[tex]X=\frac{712.50}{75}[/tex]
[tex]X=\$9.5[/tex]
A bus driver took 4 ¾ hours to complete a journey. How many minutes is this?
Answer:
624 minutes and 10 seconds
A data set is made up of these values.
1, 2, 4, 5, 8, 10, 11
Find the interquartile range.
A. 2 - 1 = 1
B. 11 - 1 = 10
C. 10 - 2 = 8
D. 11 - 5 = 6
Answer:
C. 10 - 2 = 8
Step-by-step explanation:
[tex] = (Q _{3} - Q _{1}) \\ = ( \frac{3}{4} \times 7) - ( \frac{1}{4} \times 7) \\ = (6 {}^{th} - {2}^{nd} ) \\ = (10 - 2) \\ = 6[/tex]
Please help! I will give Brainliest!
Who is correct?
Answer:
The inside angles have to equal 180 degrees so
So Hazel is correct
What is wrong with this solution? -6t + 16 = -8 Step One: -6t + 16 = -8 - 16 Step Two: -6 • -6t = -24 • -6 Solution: t = 144
Answer:
t = 4
Step-by-step explanation:
In step two, instead of multiplying by -6 on both sides, you need to divide by -6 to isolate t.
-6t = -24
÷-6 ÷-6
t = 4
When you multiply by -6 on both sides, the equation would be 36t = 144, which is not what we want. The opposite of multiplication is division, and in order to get the answer, you divide by the number multiplied.
Please someone help me im literally desperate
NO LINKS OR FILES
Answer:
(1, 0) ; (3, 0)
Step-by-step explanation:
Find the value of x.
:]]
Answer:
144
Step-by-step explanation:
Answer:
54
Step-by-step explanation:
This is a right angle (complementary angles) so 90-43 is 47 and the angel is x - 7 so you have to add 7. Answer is 54 <3
What is the value of C so that X^2 + 15x + C is a perfect square trinomial?
O 30
O 15/2
O 15/4
O 225/4
Answer:
225/4
Step-by-step explanation:
x^2+15x+c
take half of 15 and square it
(15/2)^2
225/4
Evaluate 4x^2+3y for x=5 and y=6
Answer:
2025+18=2043
Step-by-step explanation:
Answer:
118
Step-by-step explanation:
4x^2 + 3y
4(5^2) + 3(6)
4 * 25 + 18
100 + 18
118
D
What is a decimal that is equivalent to the fraction 50/100
?
Answer:
0.5
Step-by-step explanation:
left f(x)=|x| and g(x)=x+2. what are the domain and range of (f°g)(x)
Answer:
[tex](fog)(x)=|x+2|[/tex]
[tex]Dom_{fog} = R[/tex]
[tex]Range_{fog}=[0,\infty)[/tex]
Step-by-step explanation:
Find the measure of the arc or angle indicated. Find m angle FDE
Answer:
57
not sure abotu the answer
Lily had 95 inches of yarn. After cutting 4 pieces that were each the same length, she had 15 inches of yarn left.
How long was each of the 4 peices of yarn that Lily cut?
Answer:
20 inches
Step-by-step explanation:
Step 1: Subtract the total from what was left
[tex]95 - 15 = 80[/tex]
Step 2: Divide the result into the 4 pieces
[tex]80 \div 4[/tex]
[tex]=\frac{80}{4}[/tex]
[tex]= 20[/tex]
Each of the four pieces Lily cut was 20 inches.
Please help me I need help I give brainly:)
Answer:
i don't know how i can help you
Step-by-step explanation:
THE FASTEST AND MOST ACCURATE GETS THE BRAINLIEST NO LINKS PLS. Hannah and Harold are making cookies for a bake sale, and they need to make a lot of them. They need to make 70 baggies of cookies that each have 4 cookies in them. The recipe they are using says that one batch will make 2 dozen cookies.
Answer:
They need to make at least 12 batches.
Step-by-step explanation:
First, we need to find how many cookies in total, so we multiply 70 by 4.
70*4 = 280.
Secondly, 1 batch makes 2 dozen cookies, or technically 24 cookies. So we need to find how many batched with 280 divided by 24. This results in 11.6 repeating. But if you round it up, you get 12.
Time to check:
12 * 24 = 288. So it's the amount of cookies needed with 8 remaining.
Hope this helps.
A circle has a circumference of 615.44615.44615, point, 44 units.
What is the radius of the circle?
Answer:
radius of circle is 97.91
Four equivalent forms of a quadratic function are given. Which form displays the zeros of function h?
Answer:
[tex]h(x) = -4(x - 2)(x + 2)[/tex]
Step-by-step explanation:
Given
[tex]h(x) = -4(x - 2)(x + 2)[/tex]
[tex]h(x) = -2(2x^2 - 8)[/tex]
[tex]h(x) = -4(x^2 - 4)[/tex]
[tex]h(x) = -4x^2 + 16[/tex]
Required
Which shows the zeros of h(x)
To determine the zeros of a function, the function must be written as:
[tex]h(x) = n(x \± a)(x \± b)[/tex]
Where
[tex]n \ne 0[/tex]
[tex]\± a,\± b[/tex] are the zeros
Of options (a) to (d), only (a) is written in the form:
[tex]h(x) = n(x \± a)(x \± b)[/tex]
i.e.
[tex]h(x) = -4(x - 2)(x + 2)[/tex]
Other options do not show the zeros
Each table in a library can seat up to 5 people. There are enough tables for 75 people. How many tables are there in the library?
Answer:
15 tables
Step-by-step explanation:
75/5 = 15
Answer:
There are 15 tables in the library.
Step-by-step explanation:
You know this because you know the library holds 75 people and you know how many people can sit at a table so to find the answer you divide 75 by 5 and you get 15. To check this you can multiply 15 by 5 and you will get 75.
Use distribute property to multiply!
7(42)
Answer:
294
Step-by-step explanation:
7 x 42 =
(7 x 40) x (7 x 2) =
280 + 14 =
294
can I get help solve 2-4×=14
Answer:
-3
Step-by-step explanation: