Answer: 15x - 45
Step-by-step explanation:
(5)(3x) = 15x
(5)(-9) = 45
What is the surface area of this square based pyramid?
Answer:
The surface area of the pyramid is 340.2 cm²
Step-by-step explanation:
We can find the surface area of this pyramid by adding up the area of its square base and the four side triangles.
We're told that the base has a side length of 9.0 cm, so we know that its area is (9.0cm)², or 81cm²
We are told that the height of the side triangles is 14.4 cm. To find the area of a triangle, simply multiply its width times its height, and divide by two:
(14.4cm × 9cm) ÷ 2
= 129.6cm² ÷ 2
= 64.8 cm²
Now we can multiply that by 4, and add it to the base area to get the total surface area of the pyramid:
4 × 64.8cm² + 81cm²
= 259.2cm² + 81cm²
= 340.2cm²
- 4/25 into a decimal
Answer:
4/25 as a decimal is 0.16
Hope this helps!!!
Linear or nonlinear
Will mark brainliest hurry
Step-by-step explanation:
of course the answer is linear
Danielle is playing a game. She started with 10 points. In the first round, she lost 20 points. In the second round, she won 45 points. Which of the following shows Danielle's score?
Answer:
30 points
Step-by-step explanation:
Expand and simplify:
a(a + 5)
Answer:
a squared+ 5a
Step-by-step explanation:
a(a+5)
multiply everything inside the bracket
a times a is a squared
a times 5 is 5a
i hope i helped
please give me a brainliest!!<3
a dilation with a scale factor O
Answer:
The center of dilation is a fixed point in the plane. If the scale factor is greater than 1, the image is an enlargement (a stretch). If the scale factor is between 0 and 1, the image is a reduction (a shrink). If the scale factor is 1, the figure and the image are congruent.
Step-by-step explanation:
Find the 8th term of the geometric sequence 5, -15, 45, ...5,−15,45,...
Answer:
The 8th term of the geometric sequence 5, -15, 45, ... is:
[tex]a_8=-10935[/tex]
Step-by-step explanation:
Given the geometric sequence
5, -15, 45, ...
The first element of the geometric sequence is
[tex]a_1=5[/tex]
A geometric sequence has a constant ratio 'r' and is defined by
[tex]a_n=a_1\cdot r^{n-1}[/tex]
computing the ratios of all the adjacent terms
[tex]\frac{-15}{5}=-3,\:\quad \frac{45}{-15}=-3[/tex]
The ratio between all the adjacent terms is the same and equal to
[tex]r=-3[/tex]
substituting [tex]a_1=5[/tex], and [tex]r=-3[/tex] in the nth term
[tex]a_n=a_1\cdot r^{n-1}[/tex]
[tex]a_n=5\left(-3\right)^{n-1}[/tex]
Determining the 8th term:
We have already got the nth term
[tex]a_n=5\left(-3\right)^{n-1}[/tex]
substituting n = 8 to determine the 8th term
[tex]a_n=5\left(-3\right)^{n-1}[/tex]
[tex]a_8=5\left(-3\right)^{8-1}[/tex]
[tex]a_8=5\left(-3^7\right)[/tex]
[tex]a_8=-5\cdot \:3^7[/tex]
[tex]a_8=-5\cdot \:2187[/tex]
[tex]a_8=-10935[/tex]
Therefore, the 8th term of the geometric sequence 5, -15, 45, ... is:
[tex]a_8=-10935[/tex]
help me this is worth all the points I have
Answer: the one is the middle is the d orrect answer i got this question last year too
Step-by-step explanation:
Answer:
A. The car has the fastest speed
Step-by-step explanation:
car=450/9=50
Bus= 510/12=42.5
Train=200/8=25
Therefore the car is the fastest
graph y=-1\2x please i need help with this
Answer:
Step-by-step explanation:
Slope is always rise over run.
"rise" up -1 or down in this situation because it is a negative
then 'run' or move to the right 2 places on the x-axis
1. (9.70 X 106) + (8.3 X 105)
2. (3.67 x 102) – (1.6 X 101)
Solve for x: 3/5 (x+2) = x-4
1) 8
2) 13
3) 15
4) 23
Answer:
2), or 13
Step-by-step explanation:
x = 26/2 = 13
Answer:
13 is the the value of x.
Jenny has a bag of jelly beans. Of all the jelly beans Jenny has there are a total of 20. If 13 of those jelly beans are green, what percent of the jelly beans are green?
Answer:
65% are green
Step-by-step explanation:
13 is 65% of 20
A sphere ballon has a initial volume of 100piecm^3. if it increases in size to a new volume of 800piecm^3, the balloons radius has increased by a factor of what
A) 2
B)4
C)8
D)16
Answer:it’s either 2 or 16
Step-by-step explanation:
PLEASE ANSWER! ILL GIVE BRAINLY I ONLY HAVE ONE MORE CHANCE
Answer:
The answer is 3(100) + 3(20) + 3(3)
Step-by-step explanation:
Which is the better buy, 6 ballpoint pens for $4.80 or 8 for $6.48? Explain how you got your answer.
Answer:
6 ballpoints pens is the better buy
Step-by-step explanation:
$4.80 x 6 = $28.80
$6.48 x 8 = $51.84
It's cheaper
Olivia has a shoe box in the shape of a rectangular prism. She decorates 4 faces of the box,
leaving the top and the bottom without decorations. The unshaded parts of the model and
the diagram below show the parts that she decorates. What is the total area that Olivia
decorates?
5 in
11 in
8 in
190 square inches
440 square inches
366 square inches
256 square inches
Answer:
Multiple 5 time 8 times 11 which is 440
Step-by-step explanation:
I took the same test
Answer:
440
Step-by-step explanation:
I took the test.
Help!!!! ASAP!!!!!!!!!!!!!!!!
Answer:
p=15
Step-by-step explanation:
24/8=3
3x5=15
Answer:
bratdth = 8 m
perimeter = 12 m
we know
perimeter of rectangle = 2(l+b)
24=2(l+8)
24=2l+16
24-16=2l
8=2l
8/2=l
l=4m
for second picture
breadth = 5m
length =4 m
p =?
we know
p= 2(l+b)
p=2(4+5)
p=2×9
p=18m
5. A clothing store had all their clearance items 50% off and then offered a 25% coupon to the first 50 customers that entered the store that day. If John Luke was one of the 50 customers, how much would he pay for a shirt that was originally $26.54?
Answer:
6.63
Step-by-step explanation:
This is the answer because 26.54 - 75 %
=6.63
Verified by FaZe DoDo
Write a compound interest function to model each situation. Then find the balance after the given number of years.
$7000 investment at a rate of 3% compound quarterly; 10 years
Answer:
hi
Step-by-step explanation:
Solve the inequality:
16 < -2(x + 4)
Answer:
x < -12
General Formulas and Concepts:
Pre-Algebra
Distributive Property
Equality Properties
Multiplication Property of Equality Division Property of Equality Addition Property of Equality Subtract Property of EqualityStep-by-step explanation:
Step 1: Define
16 < -2(x + 4)
Step 2: Solve for x
Distribute -2: 16 < -2x - 8Add 8 to both sides: 24 < -2xDivide -2 on both sides: -12 > xRewrite: x < -12Here we see that any number x smaller than -12 would work as a solution to the inequality.
PLEASE please need help
Answer:
Question 3: 93 Question 4: -18
Step-by-step explanation:
Use Order of Operations (BEDMAS - Brackets Exponents Division Multiplication Addition and Subtraction).
Question 3:
Start with the numbers inside the brackets.
3^2 (4+6) + 3
= 3^2 (10) + 3
Then, solve the exponents.
= 9 (10) + 3
Multiply 9 and 10.
= 90 + 3
Add the numbers.
= 93
Question 4:
Again, start with the brackets.
3 (4+2) - 6^2
= 3 (6) - 6^2
Then, solve the exponent.
= 3 (6) - 36
Multiply 3 and 6.
= 18 - 36
Subtract the numbers.
= -18 (You can do 36 - 18 which is 18, then add the negative sign)
What is the true solution to 3 In 2+ In 8 = 2 In(4x)?
O X=1
O X= 2
O X=4
X= 8
Answer:
x=2
Step-by-step explanation:
Given: 3ln2 +ln8=2ln(4x)
⇒ln [tex]2^{3}[/tex]+ln8=2ln(4x) ( m ln (n)= ln([tex]n^{m}[/tex]))
⇒ ln8+ln8= 2ln(4x)
⇒ 2ln8= 2ln(4x)
comparing both sides, we get
8=4x
⇒x=2
You score a 90% on your quiz. There were 20 total questions. How many did you answer correct?
Answer:
You would've gotten 2 questions wrong to score a 90%.
Step-by-step explanation:
</3 PureBeauty
Answer:
18
Step-by-step explanation:
20×90/100
here u go fffffcv
I’ll give brainiest
Determine if a triangle with side lengths 6, 8, and 12 is acute, right, or obtuse?
Answer:
obtuse
Step-by-step explanation:
hope this helps
and can you tell me if I was right or wrong?
The average of four numbers is 90. If three of the numbers are 70 .85, and 95. what is the fourth number?
Answer: 80
Step-by-step explanation: established
cindy baught 1/4 amount of ribbon and jacob baught 7/8 amount of ribbon how much ribbon does jacob have
Answer:
0.875
Step-by-step explanation:
Find two consecutive even integers whose sum is 86. Which of the following equations could be used to solve the problem?
4x = 86
2x + 1 = 86
2x + 2 = 86
x2 + 2= 86
Answer:
ucg
Step-by-step explanation:
Answer:
2x+1=86
Step-by-step explanation:
I think thats the answer, Im not sure though
Seiko spent $98.34 on a pair of shoes and 3 pairs of fancy shoestrings. The shoes cost $45.99. How much was EACH pair of shoestrings?
Answer:
$17.45
Step-by-step explanation:
$17.45*3=52.35
$52.35+$45.99=$98.34
Gloria pays her insurance in three installments each year. The first payment is 40% of the annual premium, and each of the next two payments is 30% of annual premium. If the annual premium is $924. Find the amounts of the three payments
Answer:
Amounts of first payment = $369.60
Amounts of Second and third payment = $277.20
Step-by-step explanation:
Given:
Annual premium = $924
First payment = 40%
Second payment = 30%
Third payment = 30%
Find:
Amounts of three payments
Computation:
Amounts of first payment = $924 x 40%
Amounts of first payment = $369.60
Amounts of Second payment = $924 x 30%
Amounts of Second payment = $277.20
Amounts of third payment = $924 x 30%
Amounts of third payment = $277.20
17x2 + 7x - 14
This algebra 1
Answer:
x = 2.857 [rounded]
Step-by-step explanation:
17 x 2 = 34.
Next, we combine.
34 - 14 = 20.
Lastly, we divide 20 by 7.
20 / 7 = 2.857
[The answer is a decimal that doesn't end, but I rounded it for simplicity.]