Answer:
9
−2^2−(3)(−2)+7
=−4−(3)(−2)+7
=−4−(−6)+7
=2+7
=9
how many times can 42 go into 278?
Answer:
6.61 or 6 times
Step-by-step explanation:
278/42 = 6.61
42 goes into 278 6.61 times.
If you are estimating, 6 is correct.
If you are finding the exact answer, 6.61 is correct.
I hope this helps with your question.
Find the measure of angle J
Answer:
36
Step-by-step explanation:
Answer: 36°
Step-by-step explanation: The three angles of a triangle always equal 180 when added together. Since we have two angles already, we simply subtract those from 180
180 - 115 = 65
65 - 29 = 36
J = 36
Write a quadratic equation with 7 and as its roots. Write the equation in the form ax^2+ bx + C = 0,
where a, b, and c are integers.
The equation in the form ax² + bx + c of the quadratic equation with 7 and 2/5 as it root is x² - 33 / 5 x + 14 / 5
The root of the quadratic equation are 7 and 2/5 .
The equation should be written in the form
ax² + bx + c
where
a, b and c are integers.
Therefore,
x - (7) and x - 2/5
(x - 7)(x - 2/5)
open the bracket
x² - 2/5x - 7x + 14 / 5
x² - 33 / 5 x + 14 / 5
where
a = 1
b = -33 / 5
c = 14 / 5
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Find the midpoint of the line segment with the given endpoints.
(-10,-4), (6,-5)
HELP PLEASE!
which expressions are equivalent to square root 1,120y^3
Answer:
the answer would be 2 * 2 * y √2 * 5* 7 * y
Step-by-step explanation:
Given h(x) =-9-x find h(2k-5)=?
if 6n+6=36 what does 25n equal
Answer:
125
Step-by-step explanation:
36-6=30
30/6=5
25n= 25 x 5= 125
eighteen 2.5- gallon buckets are needed to fill a cistern of water
How many 3-gallon buckets of water will fill the cistern.
Answer:
15 3-gallon buckets of water will fill the cistern
Step-by-step explanation:
Eighteen 2.5- gallon buckets are needed to fill a cistern of water
This means, 2.5 gallon buckets in 18 places
2.5 gallons × 18 = 1 cistern of water
45 gallons = 1 cistern of water
How many 3-gallon buckets of water will fill the cistern.
Number of 3-gallon bucket in a cistern = Total gallons of bucket in one cistern / 3-gallon buckets
= 45 gallons / 3-gallon buckets
= 15
Number of 3-gallon bucket in a cistern = 15
15 3-gallon buckets of water will fill the cistern
8( y- 7) please answer this I will give brainliest
Answer: 8y − 56
Step-by-step explanation:
Multiply using the distributive property.
Harder equations
Solve these equations:
3x + 3 = -6. X=
Answer:
3 x ( 3 − x ) 3x(3-x) 3x(3−x) Expand by distributing terms. Simplify 3 x × 3 3x\times 3 3x×3 to 9 x 9x 9x. Use Product Rule: x a x b = x a + b {x}^{a}{x}^{b}={x}^{a+b} xaxb=xa+b.
Step-by-step explanation:
hope this help's
Answer:
3x+3=−6Answer:✍️✍️✍️✍️✍️✍️✍️✍️✍️✍️✍️✍️✍️✍️✍️✍️✍️✍️✍️✍️x=−3Calculate the average rate of change for the given graph from x = 3 to x = 5 and select the correct answer below.
Answer:
Average rate of change between x = 3 to x = 5 is 0.
Step-by-step explanation:
Given quadratic function s passing through two points (3, 0) and (5, 0).
Average rate of change of a function between x = a and x = b is given by,
Average rate of change = [tex]\frac{f(b)-f(a)}{b-a}[/tex]
From the graph attached,
Average rate of change between x = 3 to x = 5 will be,
= [tex]\frac{f(5)-f(3)}{5-3}[/tex]
= [tex]\frac{0-0}{5-3}[/tex]
= 0
Therefore, average rate of change between x = 3 to x = 5 is 0.
Answer: The average rate of change for the given graph from x=3 to x=5 is 0
Write the slope intercept form of the equation with the given point and slope m=5 through (-1,-3)
Answer:
Y = 5x + 2
Step-by-step explanation:
Y= Mx + b
Which fraction names the shaded part of the set?
The fraction of the shaded part of the set is 1/3.
Given is a figure in which there are total 12 parts with 4 parts shaded.
We need to find the fraction of the shaded part of the set,
To find the fraction of the shaded part of the set, we need to determine the ratio of the number of shaded parts to the total number of parts.
In this case, the total number of parts is 12, and the number of shaded parts is 4.
Therefore, the fraction of the shaded part can be calculated as follows:
Fraction of shaded part = Number of shaded parts / Total number of parts
Fraction of shaded part = 4 / 12
Simplifying the fraction, we get:
Fraction of shaded part = 1 / 3
So, the fraction of the shaded part of the set is 1/3.
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Using a copy machine, a drawing of a
tower that was 24 inches tall was reduced to a
tower that measured 8 inches high. What was
the scale factor used for the reduction?
Answer:
The scale factor reduction is 3.
brainiest
Step-by-step explanation:
Which fraction can be replaced with 0 when estimating with fractions?
Answer:
None
Step-by-step explanation:
Answer:
[tex] \frac{0}{1} [/tex]
[tex] \frac{0}{2} [/tex]
[tex] \frac{0}{72} [/tex]
[tex] \frac{0}{-56} [/tex]
[tex] \frac{0}{10} [/tex]
any number as the denominator and 0 as the numerator can be replaced in the place of 0.
Step-by-step explanation:
[tex] \frac{0}{any \: \: integer} = 0[/tex]
Which graph shows y and x in a proportional relationship? Pls helpppp
Answer:
I cannot see all of the graphs, but D looks to be the right answer.
Step-by-step explanation:
I hope this helps!! Have a great day!!!
Identify next three numbers in this sequence: 3, 12, 6, 24, 18, … 27, 13.5, 22.5 72, 66, 264 72, 36, 144 27, 21, 30
Answer:
its 72, 36, 144
Step-by-step explanation:
yes it is!!!
Ill give brainlist hahhahahhahahah
Answer: 78 I think.. maybe .... ummm yeah I think so
Step-by-step explanation:
the ratio of white socks to brown socks is
PLZ HELP ASAP
Answer:
0.875 is the ratio from white to brown socks.
7.) Зу = 2-х
2y + 10 = 6x
Answer:
By cross multiplication method
x=
(a
1
b
2
−a
2
b
1
)
(b
1
c
2
−b
2
c
1
)
&
y=
(a
1
b
2
−a
2
b
1
)
(c
1
a
2
−c
2
a
1
)
Where a
1
x+b
1
y+c
1
=0 & a
2
x+b
2
y+c
2
=0
are 2 lines
⇒x=
2(−2)−(3×3)
3(−6)−(−2)(−17)
=
−13
−52
=4
y=
2(−2)−(3×3)
(−17)3−(−6)2
=
−13
−39
=3
⇒
x=4&y=3
a school has 825 students and 55 teachers how ,many students are per teacher unit rate
Answer:
It would be 15 students per teacher unit
Step-by-step explanation:
You divide 825 students by 55 teachers
PLEASE HELP From 12.8 meters to 0.7 meters
does it percent Increase or Decrease
80 L is what percent of 400 L tank
Answer:
50%
Step-by-step explanation:
BRAINLIEST PLEASE
Answer:
the percentage of 80L from 400L is 20%
Step-by-step explanation:
in order to find the percentage of something you need to divide the total amount from the number you want to find the percentage of:
80 / 400 = 0.2
we now multiply 0.2 by 100 to turn it into a percentage:
0.2 * 100 = 20%
Calcium-41 is being used in studies testing the effectiveness of drugs for preventing osteoporosis. The half-life of calcium-41 is 100,000 years. If 20 grams of calcium-41 are present initially, how long would it take until only 2 grams
remains?
Answer:
332,193 years
Step-by-step explanation:
From the question above, we are to calculate the time in an half life question, hence, the formula is given as
t = In(Nt/No) ÷ -(In2/t½)
Where
t = time is takes for an substance to decay or reduce
Nt = Amount of sample after time = 2g
No = Initial amount of sample = 20g
t½ = Half life = 100,000 years
Hence,
t = In(2/20) ÷ (In 2/ 100,000)
t = 332192.80948874 years
Approximately = 332,193 years
At the beginning of the month, Adam had $174.85 in his checking account. He wrote these transactions in his checkbook for the month: $28.00, −$316.38, $102.86 What is Adam’s balance at the end of the month?
Answer: $622.09
Step-by-step explanation:
You add up all you answers and you get the sum and just put a $ in front of it
I hope I helped :)
The adam balance at the end of the month is $622.09.
Given that,
The beginning balance in his checking account is $174.85.And, the checkbook transactions contain the balance of $28,316.38, and $102.86.Based on the above information, the calculation is as follows:
= $174.85 + $316.38 + $28 + $102.86
= $622.09
Therefore we can conclude that the adam balance at the end of the month is $622.09.
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Write the ratio as a fraction in simplest form.
14 feet to 8 yards
Answer:
1 inch-8 lot of math make me brainliest
Step-by-step explanation:
3ft-8yd
or 36 in- 288in
18-144
9-72
3-24
express 0.0003 in Scientific notation by counting decimal places
Answer:
When we write numbers in scientific notation, we must put the first non-zero digit ahead of the decimal. In this case, the decimal would be behind the 3. Because we moved the decimal places four times to the right, our exponent will be 4. Thus,
3.00 x 10⁻⁴
we can express 0.0003 as 3 × 10⁻⁴ in scientific notation.
To express 0.0003 in scientific notation, we count the number of decimal places from the original number until we have a single non-zero digit before the decimal point. In this case, we have four decimal places before the non-zero digit (3).
Thus, we can express 0.0003 as 3 × 10⁻⁴ in scientific notation. The negative exponent (-4) indicates that we move the decimal point four places to the left to obtain the original value.
In summary, by counting the decimal places, we can express 0.0003 as 3 × 10⁻⁴ in scientific notation.
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(x + 7)^2
^2=squared
Alice grew 24 flowers with 3 seed packets. With 6 seed packets, how many total flowers can Alice have in her garden? Assume the relationship is directly proportional.
? flowers
Answer:
48
Step-by-step explanation:
Mr. Sampson fills the family pool with water for the summer. After two hours, the water has reached a depth of 2.5 feet. After three hours, the water level has risen to 3 ¾ feet. If the relationship between time and water depth is proportional., what is the constant of proportionality?
Answer: 1.25
Step-by-step explanation:
To solve this, we.will use the formula,
y = kx
where,
y = water depth
k = constant of proportionality
x = time
Using y = kx
2.5 = 2k
k = 2.5/2
k = 1.25
Also,
y = kx
3.75 = 3k
k = 3.75/3
k = 1.25