Answer:
14 cm, 18 cm, 20 cm
Step-by-step explanation:
7x + 9x + 10x = 26x
equation: 26x = 52
divide each side by 26: x = 2
7 * 2 = 14
9 * 2 = 18
10 * 2 = 20
check if answer is right: 14 + 20 + 18 = 52
I hope this helped, please mark Brainliest thank you so much!!
help pls this is due today:(
Answer:
5cm
Step-by-step explanation:
a^2+b^2=c^2
9+16=x^2
25=x^2
x=5
Hope this helps!
A tailor charge $560 for a suit of clothes and gives a discount of 12% for cash. Calculate the discounted price for a suit of clothes.
Answer:
$492.80
Step-by-step explanation:
The discount= 12%*$560/100%
= $67.20
The discounted= Selling price- discount
= $560 - $67.20
= $492.80
I need help ASAP (10 points) I checked and the only information I got was that x=8 I don’t know how to get the answer 8
Answer:
x=8
Step-by-step explanation:
This is a congruent triangle. If we use Pythagorean theorm, we can see that 3^2+y^2=25
y^2= 16
y=4
(y is the base of the small triangle)
and since the big triangle and the small triangle are congruent(the ratios are the same), 3 is half of 6, and so the base of the small triangle is half of the big triangle's.
4*2=8
x=8
4x + 11y = 7
4x + 3y = -1
Answer:
x= - 1
y= 1
Step-by-step explanation:
qwertyuiopsknzvzbjzjjs
Callista used 10% off coupon to purchase a band t-shirt from Hot Topic . If the shirt cost $21.00, what is the discount in dollars?
Answer:
The discount is 2.1 dollars
80+100??????????????????
Answer:
180
Step-by-step explanation:
8 0
+ 1 0 0
1 8 0
28. Which statement is true about the polynomial?
29. What is the degree of the polynomial?
Answer:
Step-by-step explanation:
28). (C)
29). [tex]6^{th}[/tex] degree
Answer this question please and i will give brainliest
Answer:
false the answer is false
Step-by-step explanation:
Please help with the problem in the picture ^ I’ll give brainliest if you give me a small explanation! :)
Answer:
x=16 because the proportional size, this also means that if the -84 becomes 16 in proportion size.
Which of these statements is true about adaptive evolution?
Answer:
Adaptive evolution is always changing because the environment is changing continuously.
Hence,
The right answer would be :
Adaptive evolution is a fluctuating change in a trait
Step-by-step explanation:
PLZ I WILL GIVE BRAINLEST
Bobby has 38 dolar and his siter had 92 dolar how much more money sister have?
Answer:
54
Step-by-step explanation:
92 (how much his sister has) - 38 (how much he has) = 54 (how much more money his sister has then him)
Answer: His sister had 54 more dollars than him.
Step-by-step explanation: 92 (sister's amount) -38 (Bobby's amount) = 54 (total difference).
answer fast and quickly plsss
Answer:
C. 65°, 115°
Step-by-step explanation:
3x - 5 + 2x - 15 = 180
5x - 20 = 180
5x = 180 + 20
5x = 200
x = 200/5
x = 40
5x - 20 = 3*40-5 = 120 - 5 = 115
2x - 15 = 2*40 - 15 = 80 - 15 = 65
I WILL MARK BRAINLIST
Answer:
The answer would be c
Step-by-step explanation:
If you look at the vertices you will see that none of them have any of the same vertices.
subtracting decimals
0.89-0.6
Answer:
o.29 answer of this question
Answer:
0.29
Step-by-step explanation:
0 . 8 9
-0 . 6 0
-------------
0 . 2 9
--------------
Hope this helps
plz mark as brainliest!!!!!!!!
In a sample of 80 light bulbs, the mean lifetime was 1217 hours with a standard deviation of 52 hours. a. Find the 95% confidence interval for the mean lifetime of this type of bulb. Justify the reason you chose the distribution used to construct the confidence interval. b. How many light bulbs must be sampled so that a 95% confidence interval will specify the mean lifetime to within + 8 hours?
Complete Question
In a sample of 80 light bulbs, the mean lifetime was 1217 hours with a standard deviation of 52 hours. a. Find the 95% confidence interval for the mean lifetime of this type of bulb. Justify the reason you chose the distribution used to construct the confidence interval. b. How many light bulbs must be sampled so that a 95% confidence interval will specify the mean lifetime to within [tex]\pm 8 \ hours[/tex]?
Answer:
a
[tex]1206 < \mu < 1228 [/tex]
The reason why a normal distribution was chosen is because the sample size is large enough that is [tex]n > 30[/tex]
b
[tex]n =162 [/tex]
Step-by-step explanation:
From the question we are told that
The sample size is n = 80
The sample mean is [tex]\= x = 1217[/tex]
The standard deviation is [tex]\sigma = 52[/tex]
From the question we are told the confidence level is 95% , hence the level of significance is
[tex]\alpha = (100 - 95 ) \%[/tex]
=> [tex]\alpha = 0.05[/tex]
Generally from the normal distribution table the critical value of is
[tex]Z_{\frac{\alpha }{2} } = 1.96[/tex]
Generally the margin of error is mathematically represented as
[tex]E = Z_{\frac{\alpha }{2} } * \frac{\sigma }{\sqrt{n} }[/tex]
=> [tex]E = 1.96 * \frac{ 52}{\sqrt{80} }[/tex]
=> [tex]E = 11.395 [/tex]
Generally 95% confidence interval is mathematically represented as
[tex]\= x -E < \mu < \=x +E[/tex]
=> [tex]1217 -11.395 < \mu < 1217 + 11.395[/tex]
=> [tex]1206 < \mu < 1228 [/tex]
Generally the sample size is mathematically represented as
[tex]n = [\frac{Z_{\frac{\alpha }{2} } * \sigma }{E} ] ^2[/tex]
Here E = 8
=> [tex]n = [\frac{1.96 * 52 }{8} ] ^2[/tex]
=> [tex]n =162 [/tex]
what’s this answer please need help
Answer: -1 [(y-b)/m]+x=a
Step-by-step explanation:
(Y-b) / m = x-a
[(y-b)/m] -x =-a
-1 [(y-b)/m]+x=a
I don’t get this question at all, pls help. I just need the function.
This exponential function has a base of 1.4 and an initial amount of 17. Its graph
is shifted 3 units left and 5 units up.
Answer:
-2.4 and 22
Step-by-step explanation:
Which of the following correctly identifies the set of outputs?
{(5, –2), (1, –1), (–2, 2), (2, 5)}
{(–2, 5), (–1, 1), (2, –2), (5, 2)}
{–2, –1, 2, 5}
{–2, 1, 2, 5}
There are 19.3 cups of flour in a bag. The chef uses 2.9 cups for making cookies.
Then, he uses 1.2 cups of sugar and 5.1 cups of flour for making banana bread.
How many cups of flour are left?
Answer:
10.1 cups left
Hope this helps!
Can you pls give brainly if this helps
Given: △ABC, m∠A=60°
m∠C=45°, AB = 9
Find: Perimeter of △ABC
Area of △ABC
ABC is scalene
hope it helps you ....... :)
(Angle relationships) solve this question.
Answer:
21
Step-by-step explanation:
The table shows the weights of apples at a grocery store
Answer:
c
Step-by-step explanation:
which is a unit rate?
A. 15 miles per gallon
B. 5 pounds in two bags
C. $8 for three boxes of crackers
D. 22 gallons in 5 days
SECTION 1-1 PRACTICE
Employee
Regular
Hourly Rate
х
Hours
Worked
Straight-Time
Pay
Ix
36
X Х
X Х
Wright, S.
Reardon, E.
Levitt, R.
Maguire, M.
Reyes, A.
Vadola, G.
$ 8.00
7.50
16.20
10.25
14.525
26.675
IX Х
18
30
243
31.125
25.625
X Х
You earn $6.50 per hour and work 30 hours this week. What is your straight-
Answer:
Your straight-time pay is $195.
Step-by-step explanation:
a) Data and Calculations:
Employee Regular Hourly Rate х Hours Worked = Straight-Time Pay
Wright, S. $8.00 36
Reardon, E. 7.50 18
Levitt, R. 16.20 30
Maguire, M. 10.25 243
Reyes, A. 14.525 31.125
Vadola, G. 26.675 25.625
b) If you earn $6.50 per hour and work 30 hours this week, your straight-time pay is $195 ($6.50 * 30). The straight-time pay is determined by multiplying the number of hours worked in a period by the hourly rate.
Old Navy is having a sale for the summer they are selling for shirts for $23 what is the price per share at the store
Answer:
5 dollars and 75 cents.
Step-by-step explanation:
I think you mean 4 shirts are 23$? If so ,you would divide 23 by 4 to get how many dollars is 1 shirt. 23/4 = 5.75
Given f(x) = 2x2 + 4x - 3 and g(x) = 5x - 2, find f(x) - g(x).
Must show all work to receive credit! Show your work in the box below
Answer:
its the same steps as the other one I answered for you except subtract
Step-by-step explanation:
x-1
Answer:
f(x) - g(x) = 2x^2 - x - 1
Step-by-step explanation:
f(x) = 2x^2 + 4x - 3 g(x) = 5x - 2
f(x) - g(x) = (2x^2 + 4x - 3) - (5x - 2)
= 2x^2 + 4x - 3 - 5x + 2
= 2x^2 - x - 1
Type the following fractions in order from greatest to least:
5/4, 4/10, 5/12, ¼, 11/12
Write the decimals in the boxes from greatest to least:
0.5, 0.91, 0.04, 0.89, 0.51
Answer:
5/4, 11/12, 1/4, 5/12, 4/10 0.91, 0.89, 0.51, 0.5, 0.04
Step-by-step explanation:
Im pretty sure these are correct
Today Angela's cat's age in months is the same as Angela's age in years. In one year her cat's age in months will be 2 times Angela's age in years. Today Angela is ___years old.
Answer:
10
Step-by-step explanation:
I just guessed and check :)
But if you recheck my answer it's correct!
Angela: 10 years
Cat: 10 months
In 1 year:
Angela: 11 years
Cat: 22 months
I hope this helps!
Answer:
I think Angela is 10 years old today.
What is the value of 3-(-2)? 25 -3 -2 -1 0 1 5 0 1 O 5
Answer:
5
Step-by-step explanation:
(because when two negative meets it gives u positive )