Answer:
310.73cm^2Step-by-step explanation:
The expression for the total surface area is
SA=4πr^2
given that r=11cm
we want to substitute the value of r to solve for the area
SA=4πr^2
SA=4*3.142*(11)^2
SA=2.568*11^2
SA=2.568*121
SA=310.728
Therefore they need to cover a surface of 310.73cm^2
Square root 2-x =x-2
Answer:
The square root of 2-x+x-2 is the square root of x (2-x)
Step-by-step explanation:
Graph the line that passes through the points (-2,2) and (-4,2) and determine the equation of the line
[tex]y = 2[/tex]. That's your equation.
The graph is the attachment.
Write the quadratic equation whose roots are −6 and 4, and whose leading coefficient is 4. (Use the letter x to represent the variable.)
Answer:
4(x-4)(x+6)
Standard form: 4x^2+8x-96
Step-by-step explanation:
Since the roots are set to be -6 and 4, we need to find 2 linear equations that are equal to 0 when x is at -6 and when x is at 4, and multiply them together. That would look like this:
(x-4)(x+6)
Notice how if I plug in 4 or -6 for x, the whole thing is going to be 0.
Now, if we were to factor this, the leading coefficient would be 1. Since we want to change the leading coefficient while still preserving our roots, we can just multiply the whole polynomial by 4:
4(x-4)(x+6)
Notice if I still plug in 4 or -6 for x, the whole thing is going to be 0.
In standard form, the polynomial would be 4x^2+8x-96.
Find the value of f(5) for the function.
f(a)=7(a+3)-4
f(5)=
Answer:
f(5)=52
Step-by-step explanation:
f(a)=7(a+3)-4
f(5)=7(5+3)-4
f(5)=7(8)-4
f(5)=56-4
f(5)=52
The lunch lady has 3 pounds of lasagna. If she makes 16-pound servings using this amount of lasagna, how many servings can she make?
Answer:
3
Step-by-step explanation:
Answer:
5 1/3 servings
Step-by-step explanation:
16/3 = 5.33 = 5 1/3 servings
(5.8 x 10) - (2.2 x 105)
The answer you're looking for is -173
Write and solve the equation and then check your answer.
The difference between a number and four hundred forty is five hundred eighty-five.
Complete the statements.
The equation that correctly models the problem is
To undo what has been done to the variable,
both sides of the equation.
The solution of the equation is
Check the solution by substituting for the variable and simplifying.
1)Intro
Answer:the first one is n-440=585
The second one is add 440 to
The third one is n = 1025
The last one is 1025
Step-by-step explanation: got this all right on edge
Answer:
The equation that correctly models the problem is
✔ n – 440 = 585
.
To undo what has been done to the variable,
✔ add 440 to
both sides of the equation.
The solution of the equation is
✔ n = 1025
.
Check the solution by substituting
✔ 1025
for the variable and simplifying.
Which statement describes the rate of change of the following function?
f(x) = -2x + 9
A.
The function has a varying rate of change when x 9.
C.
The function has a constant rate of change, decreasing for all x at a rate of 2.
D.
The function has a constant rate of change, increasing for all x at a rate of 9.
Answer:
C,
Step-by-step explanation:
Brian sells muffins for $0.75 and bagels for $1.25. This weekend he wants to make $300. If Brian sells 96 bagels, how many muffins does he need to sell to reach his goal?
the measure of an angle is 14° what is the measure of its supplementary angle?
3x+29>4(x+7)
how do I solve this and the answer is NOT x<8 the answer is supposed to be x<1 but I don't know how to get there.
If the measure of 2 is 68° which statements must be true
Select all that apply
A. The measure of 1 is 68°
B. The measure of 3 is 68°
C. The measure of 5 is 292°
D. The measure of 6 is 112°
E. The measure of 7 is 68°
F. The measure of 8 is 112°
Mari and Jen each work 20 hours a week at different jobs. Mari earns twice as much as Jen. Together they earn 480. How much does each girl earn?
Answer: Mari earns 320 and jen earns 160
Write an equation in slope-intercept form of the line with slope −1 that contains the point (5,−2).
Answer:
y=-x+3
Step-by-step explanation:
[tex]y-y_{1}=m(x-x_{1})\\ y-(-2)=-(x-5)\\y+2=-(x-5)\\y+2=-x+5\\y+2-2=-x+5-2\\y=-x+3[/tex]
Find the value of x.
Answer:
its 90 bro whenever you see that square on a corner its always 90 degrees
Step-by-step explanation:
Answer:
The answer is 90 degrees.
Whenever you see a square in the corner, it means it's 90 degrees.
It's also red, meaning that that is what you're trying to find.
i need help please what is the x
Answer:
x=4
Step-by-step explanation:
well you know that the square is 90 degrees so you set it up as 90=21x+6. Then you subtract 6 from both sides and it gets you 84=21x. Then divide 21 on both sides. So the answer is x=4
Please answer this question
The number of chirps per minute, C, that the tree cricket makes is linearly dependent on the temperature, T, in Fahrenheit. The crickets do not chirp at all at 45 degrees and at 75 degrees they chirp about 126 times per minute. A) Express the number of chirps, C, in terms of the temperature, T. C= B) How many chirps per minute will crickets make at 90 degrees? chirps per min.
Answer:
The answer is below
Step-by-step explanation:
A linear equation is represented by the equation y = mx + b, where m is the rate of change, b is the value of y at x = 0, y is a dependent variable and x is an independent variable.
a) Given that number of chirps per minute, C is dependent on the temperature, T, when T = 45 degrees, C = 0, this can be represented as (45, 0).
Also at 75 degrees, C = 126 it can be represented as (75, 126).
Using (45, 0) and (75, 126), we can determine the equation of the line from:
[tex]C-C_1=\frac{C_2-C_1}{T_2-T_1}(T-T_1)\\ \\C-0=\frac{126-0}{75-45}(T-45)\\ \\C=4.2(T-45)\\\\C=4.2T-189\\\\[/tex]
b) At t = 90°:
C = 4.2(90) - 189
C = 189 chirps per min
a. The expression of the number of chirps should be C = 4.2T - 189
b. The number of chirps per minute should be 189 chirps per min.
Calculation of an expression & number of chirps:Since The crickets do not chirp at all at 45 degrees and at 75 degrees they chirp about 126 times per minute.
So, here we used (45, 0) and (75, 126), we can measure the equation of the line from
[tex]C- C_1 = \frac{C_2-C_1}{T_2-T_1} (T_2 - T_1)\\\\C- 0 = \frac{126-0}{75-45} (T - 45)\\\\[/tex]
C = 4.2(T - 45)
C = 4.2T - 189
b. When T = 90 degrees
So,
C = 4.2(90) - 189
= 189 chirps
Learn more about temperature here; https://brainly.com/question/18250055
A store orders 22 boxes of light bulbs. Each box has 148 bulbs.
Which is the best estimate of the total number of bulbs the store orders?
A.
20
×
100
B.
20
×
150
C.
25
×
150
D.
25
×
200
Answer:
b
Step-by-step explanation:
Answer:
6
Step-by-step explanation:
I need help with scientific notations 9.691 x 10^7
Answer: 9.691x107
Simplifies to:
9.691x10000000
=9.691x10000000
Step-by-step explanation: haha hopes this helps!
I need help with this, I´ĹL GIVE THE FIRST ANSWER BRAINLIEST
The first answer! jk will answer
The answer is 106.02, why? because CXP is virtually the same as SYD. Pls Brainliest! It would mean a lot! ;)
Answer:
I think it's C... Hi
which is the farthest away from sea level,-3, -2, -0.8, 1/10, 1/2, 0.8, 7
Answer: 7
Of all the numbers listed, the number 7 is the greatest. If you are asking for the farthest from sea level, it is 7 because of the fact that it is the greatest number.
The answer is 7. Hope this helps!
Answer:
sea level is 0 so it would be 7
-3 -2-0.80<<<<<< sea level1/101/20.57f(x)=2x-6 find f(-2)
NEED ANSWER ASAP
What does evaluate mean? I have to do a math problem for a post-test and I don’t know what the heck Evaluate means!
Answer:
Evaluate: to determine or set the value or amount of; appraise: to evaluate the property. to judge or determine the significance, worth, or quality of; assess: to evaluate the results of an experiment. Mathematics. to determine or calculate the numerical value of (a formula, function, relation, etc.).
Hope this helps! Please mark Brainliest!
-66 = -9n + 16n + 4
Solve these step by step pls
Answer:
n= -10
Step-by-step explanation:
-66=7n+4
-7n=4+66
-7n=70
n=70/-7
n= -10
Answer:
n = -10
Step-by-step explanation:
-66 = -9n + 16n + 4
1. I started by subtracting 4 on both sides of the equation this gives you -70 = -9n + 16n
2. I then combined the like terms 16n and -9n on the right side of the equation. We do this by subtracting 9n from 16n. Which gives you -70 = 7n
3. We then divide both sides by 7 in order to get -10 = n
This gives you your final answer of n = -10
how do you decrease £56 by 14%
....................................
Answer:
i think the anwser is the third one c
Answer:
The answer is A. m || n.
Step-by-step explanation:
The answer is A. m || n.
If the lines are parallel, then the angle to the right of angle 3 is congruent to angle 1 since they are alternate interior angles of parallel lines. That makes m(1 + m<2 + m<3 = 180 deg.
Below are two parallel lines with a third line intersecting them
X = ?
Answer:
The correct answer is x =55°
If there are 67 cherries on one tree how many cherries are on 345 trees.
Answer:
If we assume that each tree will produce the same number of cherries then the answer is 23,115
Step-by-step explanation:
Given 45-45-90 triangle with hypotenuse of 3cm solve for the other sides.
Answer:
[tex]\sqrt{\frac{9}{2} }[/tex]
Step-by-step explanation:
Given dimensions:
The right angle system is a 45 - 45 - 90
Hypotenuse = 3cm
Unknown:
Adjacent and opposite sides = ?
Solution:
In this triangle, the adjacent and opposite sides are equal to one another. So,
Let adjacent = y
opposite = y
For right angle triangles as this, using the Pythagoras theorem,
hypotenuse² = adjacent² + opposite²
Insert the parameters and solve;
3² = y² + y²
2y² = 9
y² = [tex]\frac{9}{2}[/tex]
y = [tex]\sqrt{\frac{9}{2} }[/tex]