Answer:
im confused please explain better
Step-by-step explanation:
Red gold has 3 parts gold and one part copper how much carat gold it will be
Answer: 0.75 ×24 carat = 18 carat
Step-by-step explanation:
24 carat is 100% pure gold. If there is 3/4 parts of gold it is 75 % = 0.75
Use the distributive property to solve: 10(y-r) *
Your
answer
Ilse the distributive property to solve: 2(3+6) *
Answer:
The answers are 10y - 10r and 18
Step-by-step explanation:
10(y - r)
10y - 10r
___________________
2(3 + 6)
6 + 12
18
Hope this helped! Have a nice day! Plz mark as brainliest!!!
-XxDeathshotxX
For the function: f(x) = 12 + 10x − 5x2
Find f(-6)
Answer:
-228
Step-by-step explanation:
I Used the given functions to set up and simplify f(-6)
Hope this helps:)
What is the right way to work this problem?
(- -3 +12)
Answer:
15
Step-by-step explanation:
yes
Dario buys applesauce cups for a family reunion. He needs
23 cups, and he buys them in packs of 6. How many packs does
Dario need?
Answer:
4
Step-by-step explanation:
he will have extra but its better then having nothing , and only extra by 1
Answer: 4 packs
Step-by-step explanation: Dario need to buy 4 packs and get
4 ·6=24 cups
Andrea runs 4 miles every day, but she wants to increase her distance in order to run a 26 mile marathon. She decides to add 2 miles each day to her distance until she achieves her goal. If she starts with 6 miles today, how many miles will she have run in total, by the time she achieves her 26 mile goal? The correct answer is 176 miles.
Answer:
By the time she achieves her 26 mile goal Andrea will have run 176 miles.
Step-by-step explanation:
Since Andrea runs 4 miles every day, but she wants to increase her distance in order to run a 26 mile marathon and she decides to add 2 miles each day to her distance until she achieves her goal, to determine, if she starts with 6 miles today, how many miles will she have run in total, by the time she achieves her 26 mile goal the following calculation should be performed:
6 + 8 + 10 + 12 + 14 + 16 + 18 + 20 + 22 + 24 + 26 = X
14 + 22 + 30 + 38 + 46 + 26 = X
36 + 68 + 72 = X
36 + 140 = X
176 = X
So, by the time she achieves her 26 mile goal Andrea will have run 176 miles.
Three items were bought at a car boot sale.
Item A
Mass = 42 grams
Volume = 2 cm
Item B
Mass = 87.5 grams
Volume = 5 cm
Item C
Mass = 147 grams
Volume = 7 cm
The density of platinum is approximately 21 grams per cm".
Which of the items cannot be platinum?
You must show your working.
Answer:
true
Step-by-step explanation:
Work out the following.
33 + 8 x 9 =
(31 - 20) x 3 =
102 - 6 = (8-5) =
120 = (12 + 4 x 7) - 2 =
8 × 9 = 72
33 + 72 = 105
The answer is 105
2nd Equation:31 - 20 = 11
11 × 3 = 33
The answer is 33
3rd Equation:102 - 6 = 8 - 5
102 - 6 = 96
96 = 8 - 5
8 - 5 = 3
96 = 3
93 = 3 is false so therefor, this equation has no solution.
4th Equation:
102 = 12 + 4 × 7 - 2
4 × 7 = 28
102 = 12 + 28 - 2
12 + 28 = 40
102 = 40 - 2
40 - 2 = 38
102 = 38
102 = 38 is false so, it means that this equation has no solution.
a number rounded to the nearest thousand is 47000 which number could be the number that was rounded?
Answer:
46900
Step-by-step explanation:
46900 or 46800 or 46700 or 46600
Mark multiplied a number by itself. He found a
product of 30. What is the number, rounded to the
nearest tenth?
A. 4.5
B. 5.4
C.5.5
D. 15.0
Answer:
5.5×5.5=30.5
we rounded 30.25 in nearest tenth it becomes 30
Answer:
C.] 5.5
Step-by-step explanation:
It is mentioned that the number was multiplied by the number itself.
Let's take 'x' as the number. It was multiplied by itself and the product is 30. So the equation will be:
x × x = 30
[tex]x^{2}[/tex] = 30
x = [tex]\sqrt{30}[/tex]
x = 5.47 = 5.5 (to the nearest tenth)
Find the missing side of the triangle
Answer:
195^2 + 28^2 = x^2
38025 + 784 = x^2
38809 = x^2
square root both sides
x = 197
Help me ! This is due today
Answer:
y = 1/4 x + 1
The slope is 1/4, and the y intercept is 1.
Let me know if this helps!
What is the slope of line m?
On a coordinate plane, a straight line goes through (negative 2, 1), (0, 0), and (2, negative 1).
Given:
A straight line goes through (-2,1), (0,0), and (2,-1).
To find:
The slope of the given line.
Solution:
Slope formula
[tex]m=\dfrac{y_2-y_1}{x_2-x_1}[/tex]
Consider any two points from the given points.
The line goes through (-2,1) and (0,0). So, the slope of the line is
[tex]m=\dfrac{0-1}{0-(-2)}[/tex]
[tex]m=\dfrac{-1}{2}[/tex]
Therefore, the slope of the line is [tex]m=-\dfrac{1}{2}[/tex].
Answer:
its 2/3
Step-by-step explanation:
40.1 =
С C
+ 3.1
0.1
Answer:
1.876
because I said it was
What is the Perimeter?
Answer:
8000 Km can I please get brainliest?
Step-by-step explanation:
Select the correct answer from each drop-down menu.
If the radius of a circle is 3.5 Inches, Its diameter is
Inches and its approximate area is
square Inches.
Answer:
Diameter = 7 inches
Area = 38.48 in²
Step-by-step explanation:
Diameter = 3.5 x 2 = 7 inches
Area = 3.5² x π = 38.48 in²
The weight of adult female panthers in one habitat area are normally distributed with a mean of 82 pounds and a standard deviation of 9.8 pounds. What percent of the panthers weigh less than 76 pounds?
Answer:
27.09% of the panthers weigh less than 76 pounds
Step-by-step explanation:
Normal Probability Distribution:
Problems of normal distributions can be solved using the z-score formula.
In a set with mean [tex]\mu[/tex] and standard deviation [tex]\sigma[/tex], the z-score of a measure X is given by:
[tex]Z = \frac{X - \mu}{\sigma}[/tex]
The Z-score measures how many standard deviations the measure is from the mean. After finding the Z-score, we look at the z-score table and find the p-value associated with this z-score. This p-value is the probability that the value of the measure is smaller than X, that is, the percentile of X. Subtracting 1 by the p-value, we get the probability that the value of the measure is greater than X.
Mean of 82 pounds and a standard deviation of 9.8 pounds.
This means that [tex]\mu = 82, \sigma = 9.8[/tex]
What percent of the panthers weigh less than 76 pounds?
The proportion is the pvalue of Z when X = 76. So
[tex]Z = \frac{X - \mu}{\sigma}[/tex]
[tex]Z = \frac{76 - 82}{9.8}[/tex]
[tex]Z = -0.61[/tex]
[tex]Z = -0.61[/tex] has a pvalue of 0.2709
0.2709*100% = 27.09%
27.09% of the panthers weigh less than 76 pounds
what is the ratio of 7:21:35?
Answer:
49
Step-by-step explanation:
49 because 14 is added everytime
9,15,21 because 6 is added everytime
Hope it helps!
Mark my answer as brainliest!!
Question:Find the area of he trapezoid by decomposing it into other shapes.
Answer:
D) 171 cm²
Step-by-step explanation:
You don’t actually need to decompose it. You could just do it as a trapezoid:
(15+23)/2=19
19x9=171
If you want to decompose it into 2 triangles and a rectangle:
10=15x9=135
1/2(3)(9)=13.5
1/2(5)(9)=22.5
135+13.5+22.5=171 also
what is the measure if two supplementary angles has a ratio of 3:7. fund the measure if both angles
Answer:
The two angles are 54 degrees and 126 degrees.
Step-by-step explanation:
Let the two angles be 3x and 7x. Supplementary angles add up to 180 degrees.
Why is the equation
46 1,032
X +
55
not the equation of a line of best fit for the data set below?
55
Height (in.)
42
Arm span (in.)
41
43
55
45
52
48
49
49
49
52
53
59
60
45
44
44
45
60
57
A. The slope of the line is negative, but the data set has a positive correlation.
B The slope of the line is positive, but the data set has a negative correlation,
1.032
Answer:
not the equation of a line of best fit for the data set below? 55. Height (in.) 42. Arm span (in.) 41 43 55 45 52 48 49 49 49 52 53 59 60 45 44 44
Step-by-step explanation:
Answer:
c it is not d !!!!!!!!!!!!!
Step-by-step explanation:
can you give me brainliest
Peggy took a timed 30
question test. She answered
60% of the questions and
skipped the rest. How many
did she answer?
Answer: 18 questions
Step-by-step explanation:
First we want to make 60% a decimal so we divide by 100.
This gives us 0.6
Then we multiply 30*0.6=18
18 questions
Given the side lengths, determine whether the triangle is acute, right, obtuse, or not a triangle.
15, 16, 21
A Not a Triangle
B Acute
Obtuse
D Right
9514 1404 393
Answer:
B acute
Step-by-step explanation:
We can define a "form factor" for a triangle as ...
f = a² +b² -c²
where c is the longest side length. It will be interpreted as follows:
negative -- obtuse trianglezero -- right trianglepositive -- acute triangleFor this triangle, our "form factor" is ...
f = 15² +16² -21² = 225 +256 -441 = 40 . . . . a positive number
The triangle is Acute.
what is 7/9 x 5 2/5 as a fraction
Answer:
[tex] \frac{7}{9} \times 5 \frac{2}{5} \\ = 4 \frac{1}{5} [/tex]
The result of 7/9 × 5 2/5 as a fraction is 21/5.
What is the simplified form of the expression?Given the expression in the question:
7/9 × 5 2/5
To multiply 7/9 by 5 2/5 as a fraction, first, convert the mixed number 5 2/5 to an improper fraction.
5 2/5 ⇒ ( 5 × 5 + 2 )/5 = ( 25 + 2 )/5 = 27/5
Hence, we have:
7/9 × 27/5
To multiply fractions, multiply the numerators together and then multiply the denominators together:
( 7 × 27 )/( 9 × 5 )
( 189 )/( 9 × 5 )
189/45
Simplifying, we get:
21/5
Therefore, the simplified form is 21/5.
Learn more about fractions here: https://brainly.com/question/29803353
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which expression equals the sum 1+2+3+4+5+6..
Answer:
7 * 3
7+7+7
3+3+3+3+3+3+3
2+2+2+2+2+2+2+2+2+2+1
(2*10)+1
(10*1)+11....
...and so on
Step-by-step explanation:
I don't know what type of expression you are looking for
In a cafeteria, 3/10 of the students ate eating salads, and 3/5 are eating sandwiches. There are 30 students in the cafeteria. How many students are eating lunches other than salads or sandwiches?
Answer:
1/10 or 3kids
Step-by-step explanation:
First you want to take 3/5 into 10nths so you do 3/5 times two and you get 6/10 then you add up 6/10 and 3/10 and you get 9/10. 30÷ 9/10 is 27 so 3 kids are having other things
IPLEASE help me !!! Thanks
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9514 1404 393
Answer:
(b) ΔPQR ~ Δ STR, PR = 16, SR = 12
Step-by-step explanation:
The similar triangles are ...
ΔPQR ~ ΔSTR . . . . by AA similarity: S ≅ P; ∠SRT ≅ ∠PRQ
Corresponding sides are proportional, so we have ...
PR/PQ = SR/ST
(x +1)/8 = (x -3)/6
3(x +1) = 4(x -3) . . . . . . multiply by 24
3x +3 = 4x -12 . . . . . . . eliminate parentheses
15 = x . . . . . . . . . . . . . . add 12-3x
Then the side lengths are ...
PR = x+1 = 15 +1 = 16
SR = x -3 = 15 -3 = 12
The similarity statement and side lengths match the 2nd choice.
Write an expression for the calculation the quotient of 16 minus 2 and 7 minus 5
Answer:
the problem is asking you to divide (16-2) by (7-5)
14 / 2
The answer is 7
Step-by-step explanation:
The expression for the calculation of the quotient of 16 minus 2 and 7 minus 5 is (16-2)/(7-5) and the solution of this equation is 7.
What is the quotient?Quotient is the resultant number which is obtained by dividing a number with another. Let a number is divided by number b. Then the quotient of these two number will be,
[tex]q=\dfrac{a}{b}[/tex]
Here, (a, b) are the real numbers.
The expression for the calculation of the quotient of 16 minus 2 and 7 minus 5 has to be written.
Let n, is the required expression. Thus,
[tex]n=\dfrac{16-2}{7-5}[/tex]
Solve it further,
[tex]n=\dfrac{14}{2}\\n=7[/tex]
Thus, the expression for the calculation of the quotient of 16 minus 2 and 7 minus 5 is (16-2)/(7-5) and the solution of this equation is 7.
Learn more about the quotient here;
https://brainly.com/question/673545
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Factorise the expressions and divide them as directed.
Answer:
4z(4z+3)Step-by-step explanation:
to understand thisyou need to know about:algebralet's solve:factorize the first expression:
26z³(32z²-18)26z³×2(16z²-9)52z³(16z²-9)52z³(4z-3)(4z+3)divide:[tex] \sf \frac{ \cancel{52 {z}^{3}} \: ^{ \displaystyle ^{4 {z} } } \bcancel{ (4 {z} - 3 )}(4z + 3) ^{ ^{} } } { \cancel{13 {z}^{2}} \: \: \bcancel{(4z - 3) }} [/tex]4z(4z+3)What is the value of pi to the hundred-thousands place. (Answer quickly going for 45 points)
Answer:
3.14159
Step-by-step explanation:
pi