HELP PLEASE I NEED THIS QUESTION
9514 1404 393
Answer:
B. 75.8 ft²
Step-by-step explanation:
The height of each triangle can be found using the Pythagorean theorem. The given edge length (7 ft) is the hypotenuse of the triangle, and the base edge length is twice one leg of the triangle.
The height of the triangle on the 2 ft faces is ...
√(7² -1²) = √48 = 4√3
The height of the triangle on the 8 ft faces is ...
√(7² -4²) = √33
The areas of the triangular faces are the product of the height and half the base length:
A = 1/2bh
2 ft edge triangle area = (1/2)(2 ft)(4√3 ft) = 4√3 ft²
8 ft edge triangle area = (1/2)(8 ft)(√33 ft) = 4√33 ft²
__
The area of the rectangular base is ...
A = LW
A = (8 ft)(2 ft) = 16 ft²
__
The total surface area of the pyramid is the sum of the areas of the triangular faces and the area of the rectangular base.
2(4√3 +4√33) +16 = 8(2+√3+√33) ≈ 75.813
The total surface area is about 75.8 ft².
Which ordered pairs do not belong to a linear function in the form below?
y = kx + b
A. (-1, -1); (0, -1)
B. (-1, -1); (-1, 1)
C. (1, 1); (0, -1)
D. (1, 1); (-1, -1)
Answer:
its D
Step-by-step explanation:
D!!!
Answer:
D
Step-by-step explanation:
-4/2/5 = -3/1/5 + 7/10g
Answer:
g=12/7
Step-by-step explanation:
In Triangle ABC, ∠A + ∠B = 65° and ∠B + ∠C = 140°.Find the value of ∠B and ∠C.
Can anybody pls give the answer fast...
A + B = 65...Equation 1
B + C = 140...Equation 2
Solve Equation B for C.
C = 140 - B
The sum of the angles in a triangle is 180 degrees.
We know that A + B = 65.
65 + C = 180
We know that C = 140 - B.
65 + 140 - B = 180
205 - B = 180
-B = 180 - 205
-B = -25
B = -25/-1
B = 25
Plug B = 25 into B + C = 140 to find angle C.
25 + C = 140
C = 140 - 25
C = 115
Angle B = 25°.
Angle C = 115°.
Understand?
Jordana drew the function below. Which statement correctly explains whether or not her function is linear?
On a coordinate plane, a parabola opens up.
A. It is linear because it has a constant rate of change.
B. It is linear because it does not have a constant rate of change.
C. It is not linear because it has a constant rate of change.
D. It is not linear because it does not have a constant rate of change.
D.it is not linear because it does not have a constant rate of change
Answer:
d
Step-by-step explanation:
i took the test
50 - 4 > 12 OR 12x +5< -4
Answer:
Step-by-step explanation:
5x - 4 > 12
5x > 12 + 4
5x > 16
x > 16/5
12x + 5 < -4
12x < - 4 - 5
12x < - 9
x < - 9/12
x < - 3/4
Option A is the correct answer
can yall help me lol I have to finish this
Answer:
21/10 mph
Step-by-step explanation:
When you divide a fraction with another fraction, the number after the division sign gets flipped (meaning that the numerator and denominator switch so 1/2 would be 2/1)
So using that we can solve this:
7/5 / 2/3
7/5 * 3/2
21/10 miles per hour
pls help lol uh
thanks if you do im very confused
Answer:
I think it is b
Step-by-step explanation:
Answer:
B
graph B represents 1/2#1/6
1/2#1/6=3
Write an equation in slope-intercept form of the line that passes through the points ( 0, 1 ), ( 4, 2 )
Slope-Intercept Form - Y = Mx + b
Y = 1/4x + 1
4. (03.06 MC)
A cylinder and a cone have the same diameter: 8 inches. The height of the cylinder is 5 inches. The height of the cone is 15 inches.
Use n = 3.14.
What is the relationship between the volume of this cylinder and this cone? Explain your answer by determining the volume of each and comparing them
Step-by-step explanation:
Volume of a cylinder is:
V = πr²h
V = (3.14) (4 in)² (5 in)
V = 251.2 in³
Volume of a cone is:
V = ⅓ πr²h
V = ⅓ (3.14) (4 in)² (15 in)
V = 251.2 in³
The volumes are equal.
7) Select the best method to solve the system.
3x+y=7
2x=3y-4
*elimination
*substitution
Answer:
substitution
Step-by-step explanation:
I would choose substitution because the first equation can easily be set in terms of y, then substituted into the second equation, while to eliminate you would have to multiply on of the equations by a number and make it negative in order to eliminate.
Can someone help me on this Proofs problems? It's just number one and two.
See Explanation
Step-by-step explanation:
1. By interior angle sum Postulate of a triangle.
[tex] m\angle a+ m\angle y +m\angle z= 180\degree.... (1)\\\\
m\angle a+ m\angle w +m\angle x= 180\degree.... (2)\\\\[/tex]
From equations (1) & (2), we find:
[tex] m\angle a+ m\angle y +m\angle z= m\angle a+ m\angle w +m\angle x\\\\
m\angle y +m\angle z= m\angle w +m\angle x\\[/tex]
Hence proved
2. In [tex] \triangle PQS, \: \angle QSR [/tex] is exterior angle.
Therefore, by remote interior angle theorem, we have:
[tex] m\angle QPS + m\angle PQS= m\angle QSR\\\\
x + m\angle PQS= 2x\\\\
m\angle PQS= 2x-x\\\\
m\angle PQS = x.... (1)\\\\
m\angle QPS = x.... (given).... (2)\\[/tex]
From equations (1) & (2), we find:
[tex] m\angle PQS = m\angle QPS\\\\
\therefore \angle PQS \cong \angle QPS\\\\
\therefore PS \cong QS\\(sides\: opposite \: to\: congruent \:\angle s) \\\\[/tex]
[tex] \therefore \triangle PQS [/tex] is an isosceles triangle.
Thus proved.
Write the Linear equation in Standard form.. Each pair of Socks in store cost 75php, and each pair of gloves costs 50php. If you want to spend exactly 425php, write an equation in standard form modeling this situation. Let x represent the number of pairs of socks you buy, and y represent the number of pairs of gloves you buy.
Answer:
An equation in standard form modeling this situation is:
75x + 50x = 425
Step-by-step explanation:
Let
x represent the number of pairs of socks you buy
y represent the number of pairs of gloves you buy
Each pair of Socks in store cost 75php, and each pair of gloves costs 50php. If you want to spend exactly 425php.
The equation is given as:
75php × x + 50php × y = 425php
= 75x + 50y = 425
Therefore,
the equation in standard form modeling this situation is:
75x + 50x = 425
The volume of a cylinder = ar2h. Use 3.14 for A. What is the volume of this cylinder? You may use the calculator tool in the menu.
Answer:
{Height and radius not given}
Aneil wants to plant tomato plants and lettuce plants in a 60-square-foot garden. The tomato plants take up 2 square feet, and the lettuce plants take up 3 square feet. The equation 2x + 3y = 60 describes the number of tomato plants, x, and lettuce plants, y, that Aneil can plant in the garden. Graph this function and find the intercepts. What does each intercept represent?
Step-by-step explanation:
The more regular way of presenting such a graph is y = -2/3 x + 20
(Put the x on the right and made sure that the y has a coefficient of 1.)
Coefficient means the number in front of the letter (in this case).
x intercept = 30
(30,0)
y intercept = 20
(0,20)
The intercepts mean
The y intercept means the whole garden contains nothing but lettuce. (20)
The x intercept means the whole garden contains nothing but tomatoes.(30)
The points in the table lie on a line. Find the slope of the line.
X
-3
2
7
12
у
0
2
1
6
The slope of the line is
N
Answer:
n
Step-by-step explanation:
factorise 12d²-19d+5
Answer:
4d99982726629161619172928227
Step-by-step explanation:
di ko alam Ang sagot
A small ice cream cone costs $2.00, a medium costs $2.75, and a large costs $3.25. Special toppings cost
extra. Melanie's medium cone with 2 toppings cost $3.35. What is the unit rate of cost per number of toppings
for a medium cone?
Answer:
0.30 per topping
Explanation:
3.35 - 2.75= 0.60
0.60 / 2 = 0.30
How much is 10% of $30
Select all conditions for which it is possible to construct a triangle. A. Angle measures of 45 degrees, 45 degrees, and 90 degrees B. Triangle with side lengths of 4 cm, 5 cm and a 50 degree angle C. Angle measures of 120 degrees, 20 degrees, and 35 degrees D. Triangle with angle measures of 30 degrees, 60 degrees, and a side length of 3 cm
Answer:
It actually might be D or C
Step-by-step explanation:
Answer:
d
Step-by-step explanation:
i just did a test over that and it said D
...
Please help me solve this?
Answer:
12[tex]x^{4}[/tex]y[tex]z^{7}[/tex]√3x
Step-by-step explanation:
2√108[tex]x^{9}[/tex]y²[tex]z^{14}[/tex]
so you will need two of something to take one out from under the squareroot
we can rewrite [tex]z^{14} = z^{7} *z^{7}[/tex] so we can take a [tex]z^{7}[/tex] out
we can rewrite y² as y*y so we can take a y out
we can rewrite [tex]x^{9}[/tex] as [tex]x^{4} *x^{4} *x[/tex] so we can take a [tex]x^{4}[/tex]out
for 108 think what is the smallest prime number that divides 108 and is 2
108= 2*54
same algorithm, smallest prime number that divides 54 is 2 so
108=2*2*27
same algorithm, smallest prime number that divides 27 is 3 so
108=2*2*3*9
we know 9 is 3*3 so
108=2*2*3*3*3 we can take out one 2 and one 3
put them all toghether now
2*2*3*[tex]x^{4}[/tex]*y*[tex]z^{7}[/tex]√3x = 12[tex]x^{4}[/tex]y[tex]z^{7}[/tex]√3x
ASAP 20 points -0.45x + 0.33 = -0.66 whats x
Answer:
x=2.2
Step-by-step explanation:
calc
A group of students is arranging squares into layers to create a project. The first layer has 4 squares. The second layer has 8 squares. Which formula represents an arithmetic explicit formula to determine the number of squares in each layer?
f(1) = 4; f(n) = 4 ⋅ d(n − 1), n > 0
f(1) = 4; f(n) = 4 ⋅ d(n + 1), n > 0
f(1) = 4; f(n) = 4 + d(n + 1), n > 0
f(1) = 4; f(n) = 4 + d(n − 1), n > 0
Answer:
f(1) = 4; f(n) = 4 + d(n - 1), n > 0.
Step-by-step explanation:
This arithmetic sequence has a common difference of d with first term = 4.
f(1) = 4; f(n) = 4 + d(n - 1), n > 0.
Answer:
D)
Step-by-step explanation:
I took the test.
Find the inverse of the function. *
Answer:
C.
Step-by-step explanation:
1.) switch x and y
x=(7y+18)/2
2.) multiply both sides by 2
2x=7y+18
3.) subtract 18 from both sides
2x-18=7y
4.) divide both sides by 7
(2x-18)/7=y
Write the slope-intercept form of the equation for the line that passes through the point (-1,3) and has a slope of 5/3
Answer:
[tex]y=\frac{5}{3}x+4\frac{2}{3}[/tex]
Step-by-step explanation:
slope-intercept form: y = mx + b
Given:
Slope(m) = [tex]\frac{5}{3}[/tex]
Point = (-1, 3)
To write the equation in slope-intercept form we need to know the slope(m) and the y-intercept(b). Since we already know the value of m, we can use it and the given point to find b:
[tex]3=\frac{5}{3}(-1)+b[/tex]
[tex]3=-\frac{5}{3}+b[/tex]
[tex]4\frac{2}{3}=b[/tex]
Now that we know the values of b and m, we can write the equation:
[tex]y = \frac{5}{3}x+4\frac{2}{3}[/tex]
what is this plug's brand?
Answer:
ce smart home
Step-by-step explanation:
it says it righ tthere
Answer:
the brand?? it says it right there if I'm not wrong lol "ce smart home"
find the slope from the graph (help please)
Evaluate and simplify the following complex fraction.
Answer:
-10/7
Step-by-step explanation:
(-5/7)/(2/4) = (-5/7)/(1/2) = (-5/7)*(2/1) = -10/7
What property would you use to solve m+6=−4?
Answer:
m = -10
General Formulas and Concepts:
Order of Operations: BPEMDAS
Properties
Subtraction Property of EqualityStep-by-step explanation:
Step 1: Define equation
m + 6 = -4
Step 2: Solve for m
Subtract 6 on both sides: m = -10Step 3: Check
Plug in m to verify it's a solution.
Substitute: -10 + 6 = -4Add: -4 = -4The scale drawing of a rectangular city park measures 10.0 cm(width) by 5.0 cm(length). The scale of the drawing is 1.0 cm = 4.5 meters. What is the actual length of the park?
Answer:
given us,
width= 10.0
length= 5.0
here,
w×d= 10.0× 5.0
= 50
now
cm/ m
=1.0/ 4.5
= 2.22
w×d x cm.m× 100
50/ 2.22× 100
2252.25
Step-by-step explanation:
we have to solve and multiply