Answer:
b
Step-by-step explanation:
Which ordered pair is a solution of the equation?
-7x+3y=2
Choose 1 answer:
(Choice A)
A
Only (1,3)
(Choice B)
B
Only (−2,−4)
(Choice C)
C
Both (1,3)(-2,-4)
(Choice D)
D
Neither
Shopping in a bookstore, Mary found a used book on the planet Venus that she decided to purchase. To pay for the book, Mary spent 5 half dollars, 7 quarters, 2 dimes, 8 nickels, and 4 pennies. How much money did Mary spend on the book? How much money did she spend plz help
ver resposta das frações 1/5÷3/7
Answer:
7/15
Step-by-step explanation:
[tex]\frac{1}{5} / \frac{3}{7}\\\\\frac{1}{5} *\frac{7}{3} \\\\\frac{1*7}{5*3}=\boxed{\frac{7}{15}}[/tex]
Hope this helps.
QUESTION 1
1.1
1.1.1 Wiite 2 368 000 in words
1.1.2
Round the following number 864 345,537
1.1.2.1 to the nearest thousand
1.1.2.2 to two decimal places
Find the measurement of angle X
A) 91°
C) 1360
B) 1050
D) 100°
Answer:
I think its B or C
Step-by-step explanation:
There was no 0 ce, so how many years ago was 33 ce?
Answer:
1988 years ago.
Historians have never included a year zero, and it isn't common practice to include it.
Hope this helps,
Azumayay
30 beads divided into 5 groups is represented by which fraction
Answer:
30/5=6 the fraction is 30/5
Step-by-step explanation:
Help pls!!!! Pls explain how you got the answer if you can!!! Have a blessed day
Also if you don’t know the exact answer answer and comments. And pls don’t waste my points this assignment is very important.
Answer:
A.) 4/25
Step-by-step explanation:
A pet shop is 10 dogs, 15 cats, 6 birds , and 4 snakes . What is the ratio of dogs to pets?
Answer:
2:7
Step-by-step explanation:
10+15+6+4=35
given dogs=10
10/35=2/7
2:7
Solve 7k ÷ 3 = 21.
The solution is k=?
Answer:
k=9
..............................
Find the measure of <2
Answer:
96
Step-by-step explanation:
Hello There!
The following figure shown is a parallelogram
If you didn't know opposite interior angles of a parallelogram are congruent
Therefore the angle that has a measure of 96 degrees and the angle labeled 2 are congruent
hence ∠2=96
Jillian is 5 years old. She has an older brother whose age is represented by the expression 2x+3, where x represents Jillian's age. How old is her brother?
Answer:
13
Step-by-step explanation:
2(5) = 10, +3 = 13 years old,, just use order of operations and plug in jillians age for the x
Answer:
7
Step-by-step explanation:
2x2 = 4+3=7 so her brother is 7
9. Mr. Allen began saving money. His savings is shown on the graph. Mrs. Clayton began saving at the same time,
and her savings is recorded in the table.
Weeks
Total Savings ($)
0
6
1
11
3 4 5
16 | 21 | 26 31
What does their initial value mean in each representation?
A. Mr. Allen began with $8 in his account and Mrs. Clayton began with $6 in her account.
B. Mr. Allen's additional increase is $6 per week. Mrs. Clayton's additional increase is $5 per week.
C. Mr. Allen increased his savings by $8 each week, while Mrs. Clayton increased her savings by $6
each week.
D. Mr. Allen's goal was to have $32 by week 4, and he reached his goal. Mrs. Clayton's goal was to
have $26 by week 4, and she reached her goal.
Answer: im sure that it is C
Please help ! I'll give brainliest as well.
Answer:
390 Millions of bacteria particles by the end of one week.
Step-by-step explanation:
The Bacteria Growth Rate Formula is: ---> N (T) = N (0) * (1 + R) ^tT
N (0) = # of bacteria present during the beginning of the experiment
Variable R= Growth rate
Variable T= Time taken / elapsed.
Substitute the #'s for N (T)
N (0) and T from the given description
We then get the value of variable R.
220 = 20 * (1+R) ^ (24 hrs)
When solving for R, we get R = 0.105074
1 week= (7 x 24 = 168) hrs
We need to plug in the solutions
Therefore
N (168 hours) = 20 * (1+0.105074) ^168
Which is around 390 millions.
So now we know that there will be 390 millions of bacteria particles at the end of 1 week
Find two numbers whose sum is 9 and their difference is 60.
Smaller-
Large number-
Answer:
Step-by-step explanation:
x+y = 9
x-y = 60
-----------
2x = 69
x = 34.5
y = 9-x = -25.5
smaller number: -25.5
larger number: 34.5
In AMNO, m = 56 cm, n = 19 cm and o=57 cm. Find the measure of Zo to the nearest
10th of a degree.
Answer:83.3∘
Step-by-step explanation:
The measure of angle O from the triangle MNO is 156.92°.
What is cosine rule?In trigonometry, the law of cosines relates the lengths of the sides of a triangle to the cosine of one of its angles.
The formula for the cosine rule is c=√(a²+b²-2ab cosC)
here, we have,
Given that,
in triangle MNO,
m = 720 cm, n = 160 cm and o=870 cm.
Now, 870=√(720²+160²-2×720×160 cosO)
870²=720²+160²-2×720×160 cosO
756900=544000-230400 cosO
212900=-230400 cosO
cosO= -212900/230400
cosO= -0.92
∠O=156.92°
Therefore, the measure of angle O from the triangle MNO is 156.92°.
Learn more about the cosine rule here:
brainly.com/question/26952873.
#SPJ7
please I really need help question above
Answer:
point D
Step-by-step explanation:
(5;-2)
the first number(5) is always the x-values ( horizontal line ) and the second number ( -2) is always the y-value ( verticle line )
Nora is going to earn $300 from her summer job. Combined with her savings, Nora will then have $1,500 toward her music school. How much money does Nora have in her savings?
Answer:
1200
Step-by-step explanation:
1,500-300=1200
HELP ASAP WILL MARK BRAINLIEST IF RIGHT!
Answer: -15
Step-by-step explanation:
f(-8) is the value of y / f(x) when x = -8 in the function f(x)
f(-8) = -5
g(4) is the value of y / f(x) when x = 4 in the function g(x)
g(4) = 5
-1 * f(-8) - 4 * g(4)
Substitute -5 for f(-8) and 5 for g(4)
-1 * -5 - 4 * 5 (evaluate, note: remember order of operations)
5 - 4 * 5
5 - 20
-15
Find the value of the trig ratio?
Answer:
3/5
Step-by-step explanation:
To find the value of sinX we divide opposite side with hypotenuse
15/25 = 3/5
The net for a rectangular prism is shown below. Which is total surface area of the figure?
Find the area of a room that is 8-feet-wide and 9-feet-long.
Step-by-step explanation:
Area = l × b
= 9ft × 8ft
= 72ft²
Answer:
72 feet
Step-by-step explanation:
8 (length) • 9 (width) = 72 sq ft
Which number line represents the solution 6x<42 ?
Answer:
7
Step-by-step explanation:
+2($($;$)2:
hope it helps
PLSSS PLSSS HELP! After an injury, Greg's doctor advises him to slowly build up to his regular workout schedule, adding a certain number of minutes to his workout time each week. According to his doctor's advice, Greg should work out for 25 minutes in week 3 and 47.5 minutes in week 6. A. For how many minutes should Greg work out in week1? How many in week 10? B. For how many minutes should Greg workout in week n? Explain your answer. Make sure to include the arithmetic sequence that can be used to find out how many minutes agree should work out in week n. Show your work.
Answer:
Week 1: 10 Minutes
Week 10: 77.5 Minutes or 1 hour and 17.5 Minutes
Week n: 10 + 7.5n
Step-by-step explanation:
Every week, Greg adds another 7.5 minutes to his workout time. Week 1 starts off with 10 minutes and continuously adds 7.5 minutes until he gets to week three, which 10 + 7.5(2) = 25 minutes.
When conducting research on color blindness in males, a researcher forms random groups with five males in each group. The random variable x is the number of males in the group who have a form of color blindness. Determine whether a probability distribution is given. If a probability distribution is given, find its mean and standard deviation. If a probability distribution is not given, identify the requirements that are not satisfied.
x P(x)
0 0.669
1 0.278
2 0.048
3 0.004
4 0.001
5 0.000
1. Does the table show a probability distribution?
A Yes, the table shows a probability distribution.
B. No, the random variable x's number values are not associated with probabilities.
C. No, not every probability is between O and 1 inclusive.
D. No, the sum of all the probabilities is not equal to 1.
E. No, the random variable x is categorical instead of numerical.
2. Find the mean of the random variable x.
a. mu = male(s).
b. the table does not show a probability distribution.
3. Find the standard deviation of the random variable x.
a. infinity = male(s).
b. the table does not show a probability distribution.
Answer:
1. Yes, the table shows a probability distribution.
2. 0.39 males.
3. 0.6082 males.
Step-by-step explanation:
The random variable x is the number of males in the group who have a form of color blindness. Determine whether a probability distribution is given:
A probability distribution is given if the sum of all probabilities is 1.
We have that:
0.669 + 0.278 + 0.048 + 0.004 + 0.001 + 0 = 1
So yes, the table shows a probability distribution.
2. Find the mean of the random variable x.
We multiply each value by its probability. So
[tex]\mu = 0*0.669 + 1*0.278 + 2*0.048 + 3*0.004 + 4*0.001 + 5*0.000 = 0.39[/tex]
The mean is 0.39 males.
3. Find the standard deviation of the random variable x.
Square root of the subtraction squared of each value and the mean, multiplied by its respective probability. So
[tex]\sigma = \sqrt{0.669*(0-0.39)^2+0.278*(1-0.39)^2+0.048*(2-0.39)^2+0.004*(3-0.39)^2+0.001*(4-0.39)^2+0.000*(5-0.39)^2} = \sqrt{0.3699} = 0.6082[/tex]
The standard deviation is of 0.6082 males.
A shipment of tile cost $64,500.
Each tile costs 15 dollars.
How many pieces of tile are in the shipment?
A.430
B.1,290
C.4,300
D.8,600
Answer:
The answer is C. 4,300
Answer explanation :
Answer: C. 4,300
Steps:
64,500 / 15 = 4,300
Check:
15 * 4,300 = 64,500
64,500 = 64,500 ✅
I would appreciate the brainliest if this was helpful and correct! :)
please help does anyone know this
PLEASE HURRY⚠️⚠️
How do you find the length of an unknown leg in a right triangle?
Answer:
by measuring in feet
Step-by-step explanation:
its the easiest way to find what your looking for
Answer:
You can find the length of an unknown leg using the Pythagorean theorem
Step-by-step explanation:
[tex]a^2+b^2=c^2[/tex]
or
[tex]c^2-a^2=b^2[/tex]
or
[tex]c^2-b^2=a^2[/tex]
note c = hypotenuse and b and a = legs
Kim bought her Supreme shoes for $52 on eBay. She marks up the shoes to resell on GOAT for 120% of the price.
a) What is the amount of markup? $
b) What is the price of the shoes after markup? $
Answer:
a) $10.4
b) $62.4
Step-by-step explanation:
a) What is the amount of markup? $
$52 - 100%
$X - 120%
100X = 52*120
100X = 6240
X = 6240/100
X = $62.4
62.4-52=
$10.4
b) What is the price of the shoes after markup? $
$62.4
awDFJHg,nkuxbwdui683760198we1t7t-9dn1n8uds
Answer:
thanx
Step-by-step explanation: