A square pyramid is shown below:
A square pyramid is shown. The sides of the square base are labeled 0.7 foot. The height of one of the triangular sides is labeled 8 feet.
What is the surface area of the pyramid? (1 point)
11.69 square feet
3.29 square feet
7.49 square feet
2.24 square feet
Answer: A 11.69
Step-by-step explanation:
Answer:
11.69
Step-by-step explanation:
i need pts
Problem: 2 - $(7 – 2y) = -3
Step 1: -3(7 2y) = -3
Step 2: -21 + 6y=-3
Step 3: by = 18
Step 4: y = 3
Determine which number step the mistake is Made and describe the error
Item 4: Help! asapnplease
Answer:
The answer tot he question provided is 5.
Step-by-step explanation:
→ Angle D and Angle B are congruent to each other, which means that they are equal.
→ The equation would look like:
[tex]2x + 4 = 4x - 6[/tex]
→ Solve the equation.
[tex]2x + 4 = 4x - 6 \\ \frac{ - 4x \: \: \: \: = - 4x \: \: \: \: \: \: \: \: \: }{ - 2x + 4 = - 6} \\ \frac{ \: \: \: \: \: \: \: \: \: \: \: - 4 = - 4}{ \frac{ - 2x}{ - 2} = \frac{ - 10}{ - 2} } \\ x = 5[/tex]
→ The value of x results in being 5.
Need help (8th grade math)
Slope= rise/run
=y2-y1/x2-x1
3-1/8-7
2/1
Slope=2
Answer:
2
Step-by-step explanation:
- use the equation:
m=y^2-y^1/x^2-x^1
- pick any two points:
m= -1+3/6-5
- solve:
m= 2/1
FINAL ANSWER:
2
Which decimal is equivalent to -3 1/8
-3.12
-3.1205
-3.18
-3.125
Answer:
Answer D (-3.125)
Step-by-step explanation:
Find the slope of the line. The slope of the line is
Answer: The slope of the line is [tex]\frac{3}{4}.[/tex]
Step-by-step explanation: I use the slope formula to find the slope of the line given the graph image below that looks like this:[tex]\frac{Rise}{Run}=\frac{y_{2}-y_{1}}{x_{2}-x_{1}}.[/tex]
The rise of the points is 3 points and the run of the points is 4 points.
Now I can put it in another slope formula that looks like this: [tex]\frac{3-0}{2-(-2)}=\frac{3}{4}.[/tex]
I hoped my answer was found very helpful to your own question and have more understanding and happy Halloween! :D
Sincerely,
Jason Ta
The Helping Hand of Brainly And The Role Of The TDSB and WHCI Student.
Warren is on vacation and needs to arrange transportation. A rental car costs 60 dollars per day plus a one-time cost of 14 dollars for insurance. Construct a function C(x) that gives the total cost of renting a car for x days.
C(x) = ______________
If Warren has budgeted 434 dollars for the rental, how many days can he afford?
Answer:
The answer is C(x) = 60x + 14 and the answer to the second one is 7 days.
Step-by-step explanation:
C(x) =60x + 14
434 = 60x + 14
-14 -14
420 = 60x
/60 /60
7 = x
or
x = 7 days
Find the value of x.
Answer:
35 degrees
Step-by-step explanation:
Last One, I'd really appreciate it!
Answer:
n = 20
Step-by-step explanation:
Since the triangles are similar, we can create a common proportion.
[tex]\frac{15}{12} =\frac{n}{16}[/tex]
Now you have to solve this proportion
Start by cross multiplying, and you get 12n = 240
Divide both sides by 12, and you get n = 20.
Hope this helped
Hey there!
The answer to your question is n = 20
Since they are similar, we can use proportions:
12/15 = 16/n
Then we can use cross products:
15 x 16 = 12n
140 = 12n
20 = n
Hope it helps! Have an amazing day!
Which graph shows the solution set for 2 x + 3 greater-than negative 9?
A number line going from negative 8 to positive 2. An open circle is at negative 3. Everything to the left of the circle is shaded.
A number line going from negative 8 to positive 2. An open circle is at negative 3. Everything to the right of the circle is shaded.
A number line going from negative 8 to positive 2. An open circle is at negative 6. Everything to the left of the circle is shaded.
A number line going from negative 8 to positive 2. An open circle is at negative 6. Everything to the right of the circle is shaded.
I''m pretty sure it's A
In planning her retirement, Liza deposits some money at 4% interest, with twice as much deposited at 4.5%. Find the amount deposited at each rate if the total annual interest income is $2080.
She deposited $___ at 4% and $____ at 4.5%.
She deposited $16,000 at 4% and $32,000 at 4.5%
She deposited $16,000 at 4% and $32,000 at 4.5%.
Let's assume Liza deposited an amount x at 4% interest. According to the given information, she deposited twice as much, which is 2x, at 4.5% interest.
To calculate the interest income from the deposits, we'll use the formula: Interest = Principal × Rate × Time.
At 4% interest, the interest earned is 0.04x (4% expressed as a decimal multiplied by x).
At 4.5% interest, the interest earned is 0.045(2x) (4.5% expressed as a decimal multiplied by 2x).
We know that the total annual interest income is $2080. Therefore, we can write the equation:
0.04x + 0.045(2x) = 2080
Simplifying the equation:
0.04x + 0.09x = 2080
0.13x = 2080
x = 2080 / 0.13
x ≈ 16,000
Liza deposited approximately $16,000 at 4% interest, and since she deposited twice as much at 4.5% interest, she deposited approximately $32,000 at 4.5% interest.
Therefore, she deposited $16,000 at 4% and $32,000 at 4.5%.
To know more about deposited:
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write each fraction in standard form. -5/6
Answer:
assuming when you say standard form you just want to convert it to a decimal, the answer is
_
-0.8 3
the line on top of the 3 should mean that it continues
Step-by-step explanation:
Help me pls it’s due today at 11:59
Answer:
A rotation followed by a translation
1.1.4 Practice: Scale Drawings
Practice
Math 7 Sem 2
Points Possible:5
Name:
Date:
Tips for Success
Read the assignment carefully and make sure you answer each part of the question or questions.
Check your work when you're done.
Your Assignment
Jason and Adam are using a kit to build their own electronics board for a computer project. They use a scale drawing included in the instructions to help build the board.
Jason will use the scale factor to find the board's actual length and width, then multiply those dimensions to find the board's area.
Adam says he knows another way.
Answer the questions to show how Adam could find the area of the scale drawing, and then use this strategy to find the area of the electronics board.
1. What is the area of the board shown on the scale drawing? Explain how you found the area.
Write your answer in the space below.
2. How can Adam use the scale factor to find the area of the actual electronics board? Remember, he uses a different method than Jason.
Write your answer in the space below.
3. What is the area of the actual electronics board?
Write your answer in the space below.
Answer:
so over alll I got 1800
Step-by-step explanation:
for number 1
A state's Department of Education reports that 12% of the high school students in that state attend private high schools. The State University wonders if the percentage is the same in their applicant pool. Admissions officers plan to check a random sample of the over 10,000 applications on file to estimate the percentage of students applying for admission who attend private schools.
a) They select a random sample of 500 applications, and find that 46 of those students attend private schools. Check the conditions required for inference. (3 marks)
b) Create the 90% confidence interval. (6 marks)
c) Interpret the confidence interval in the context of the problem. (3 marks)
d) Should the admissions officers conclude that the percentage of private school students in their applicant pool is lower than the statewide enrollment rate of 12%? Explain. (2 marks)
Answer:
a) p*n = 46 and q*n = 454 data is enough for inference
b) CI = ( 0,099 ; 0,141)
c) CI we will find with 90% of confidence the value of p in that interval
d) No, we accept H₀ we don´t have evidence to claim that the percentage in the State University is smaller than that of the Department of Education
Step-by-step explanation:
Information from A state´s Department of Education is:
p₀ = 12 % p₀ = 0,12
The State University sample:
Sample size n = 500
Sample proportion 46 out of 500
p = 46/500 p = 0,092 then q = 1- p q = 1 - 0,092 q = 0,908
Both p*n = 46 and q*n = 454
a) Are big enough to approximate the binomial distribution to normal distribution
b) CI = 90% CI = 0,9 significance level α = 0,10 for an CI we need
α/2 = 0,10/2 α/2 = 0,05
z(c) = - 1,64 ( from z-table)
MOE = z(c)*√(p*q)/n
MOE = 1,64 * √ ( 0,092*0,908)/500
MOE = 1,64 *√0,08353/500
MOE = 1,64 * 0,0129
MOE = 0,021
Then CI = 90 % is:
CI = ( 0,12 - 0,021 < P < 0,12 + 0,021 )
CI = ( 0,099 ; 0,141)
We have with 90 % of confidence for finding the value of p in the interval
Test Hypothesis
Null Hypothesis H₀ p = p₀
Alternative Hypothesis Hₐ p < p₀
we have for α = 0,1 z(c) = - 2,32 from z table
And z(s) = ( p - p₀ ) / √ (p*q)/n
z(s) = ( 0,092 - 0,12 ) / √(0,092*0,908)/500
z(s) = - 0,028 / 0,0129
z(s) = - 2,17
Comparing z(s) and z(c) we see that
|z(s)| < |z(c)|
So z(s) is in the acceptance region. We can support the claim that the percentage in the State University is the same than that of the Departament of Education
6. (CED.2, REI. 6) A manager is comparing
the cost of buying baseball caps from two
different companies.
Company X charges a $50 fee plus S7 per
baseball cap.
Company Y charges a $30 fee plus $9 per
baseball cap.
For what number of baseball caps will the
cost be the same at both companies?
A. 20
B. 10
C. 40
D. 100
The vertices of a triangle are P(2, –8), Q(1, –4), and R(4, –1). Name the vertices of P'Q'R' after a reflection over the x-axis.
Answer:
The coordinates of P'Q'R' are: P' (2,8), Q' (1,4) ,R'(4,1)
Step-by-step explanation:
We are given:
The vertices of a triangle are P(2, –8), Q(1, –4), and R(4, –1).
We need to:
Name the vertices of P'Q'R' after a reflection over the x-axis.
Reflection over the x-axis
The rule used for reflection over x-axis
P(x,y)= P'(x,-y)
The coordinates of x-axis remains same, while coordinates of y-axis become negative.
Now, finding coordinates of P'Q'R'
P (2,-8) -> P' (2,8)
Q(1,-4) -> Q' (1,4)
R(4,-1) -> R'(4,1)
So, the coordinates of P'Q'R' are: P' (2,8), Q' (1,4) ,R'(4,1)
Write an equation of a line with the given slope and y-intercept: m=-1, b=-9
Answer:
[tex]y=-x-9[/tex]
Step-by-step explanation:
The formula is y=mx+b.
Answer:
y=-1x -9
Step-by-step explanation:
the formula is y=mx+b so you just substitute the values into the formula.
Question Three
During the regular season, a National Basketball Association team plays 82 games and a National Football League team plays 16
games. In simplest form, what is the ratio of NFL regular season games to NBA regular season games?
A
4:41
B
8:41
С
41:4
D
41:8
Answer:
c
Step-by-step explanation:
i am a sports center worker
HURRY PLEASE....... Jessica always uses the same ratio of green beads to blue beads when she makes necklaces. The graph shows these equivalent ratios. Which table shows the same data?
Answer:b
Step-by-step explanation:
two beads for every 3
Find the missing side or angle.
Round to the nearest tenth.
A=42°
a=22
b=12
B=[? ]
Answer:
The answer is 21.4
Step-by-step explanation:
The answer would actually be 21.41, but when you round to the nearest tenth it comes out to 21.4!
I do acellus as well
Answer:
The answer for Acellus people is B=21.4
Step-by-step explanation:
i need help,if you help me i'll give hugs :3
Answer:
Liter
Step-by-step explanation:
What is the measure of angle r
Answer:
Step-by-step explanation:
you have a pentagon , and the sum of the angles is 540
3x-10+3x-8+5x-2+3x+1+2x+15=16x-4=540
16x-4=540
16x=544
x=544/16=34
the angle= (3x-8)=(3*34)-8=94
You spin the spinner twice.
5
4
What is the probability of landing on an odd number and then landing on a 5?
Simplify your answer and write it as a fraction or whole number.
Submit
Answer:
5 by 2
because the number is 5 .
And the spinner is spin two time
so 5 by 2
Step-by-step explanation:
hope it helps you
Can someone please help me answer this?
Answer:
d is greater than c, since at [tex]x = 0, g(x) > f(x)[/tex]
Step-by-step explanation:
We are given two exponential functions, f(x) and g(x).
Since f has the higher base(3 instead of 2 in g), it increases faster, so initially, g is greater than f, and after point (p,q), f is greater than g.
The values of c and d are found when [tex]x = 0[/tex]. At this point, we have that function g is greater than function f, which means that d is greater than c.
Solve for x and round to the nearest tenth
Answer:
i think its 18 :))
The amount Jackson earned last summer can be modeled by the expression
120 + 8h ≥ 200, where h is the number of hours he worked.
Solve to find how many hours Jackson could have worked last summer.
Answer:
Jackson could have worked at least 10 hours.
Step-by-step explanation:
120+8h≥200
-120 -120
8h≥80
/8 /8
h≥10
WILL GIVE BRAINLIEST FOR RIGHT ANSWER!!
Write the system of equations for this word problem:
Alex is on the job hunt. He has narrowed it down to two options. He can sell cars for $400 a week and would earn 25% commission per sale. Or, he could sell boats for $450 a week and earn 15% commission per sale.
Write two equations for this
plz
thanks
:)
Answer:
Sell cars
Step-by-step explanation:
if you do 400 x 25% you get $100
if you try doing 450 x 15% you only get $67.5
In a cross between individuals that are Aa × Aa, how many boxes of the Punnett square will show an offspring that is AA?
please help
Answer:
1
Step-by-step explanation:
I will mark brainliest please help
Answer:
15 cups
Step-by-step explanation:
The formula to find cups from quarts C = Q * 4, where c is how many cups, and Q how many quarts. To find how many cups are in a quart, simply multiply the number of quarts by 5. In this case, there are 3 3/4 quarts of coffee, multiply that by 5, and you would get 15 cups of coffee!