Answer:
28,500,000 into scientific notation is 2.85 x 10⁷
2.85 x 100 in scientific notation is 2.85 x 10²
if you mean the multiplication symbol, it just means to multiply. otherwise, there i don't see an x anywhere else
Please help I'll mark brainlest
Answer:
x = 76
Step-by-step explanation:
∠ DIJ and ∠ HIJ are adjacent and supplementary, thus
∠ DIJ = 180° - 107° = 73°
The sum of the 3 angles in Δ DIJ = 180° thus
∠ DJI = 180° - (73 + 31)° = 180° 104° = 76°
∠ DJI and x are vertical angles and congruent , thus
x = 76
Answer:
x = 76
Step-by-step explanation:
x = 76
A 3-gallon tub of ice cream yields about 90 scoops of ice cream. There are roughly 3785 cubic centimeters in 1 gallon. Determine the radius of each scoop, to the nearest tenth.
Answer:
The radius of the scoop is r = 3.1 cm
Step-by-step explanation:
Since 3 gallons yields 90 scoops, and 1 gallon = 3785 cm³.
3 gallons = 3 × 3785 cm³ = 11355 cm³
So we have 11355 cm³ in 3 gallons which is also the volume of 90 scoops.
Since 90 scoops = 11355 cm³, then
1 scoop = 11355 cm³/90 = 126.2 cm³
Now, if each scoop is a sphere, the volume is given by V = 4πr³/3 where r is the radius of the scoop. Since we need to find the radius of the scoop, r, making r subject of the formula, we have
r = ∛(3V/4π)
Substituting V = 126.2 cm³, we have
r = ∛(3× 126.2 cm³/4π)
= ∛(378.6 cm³/12.57)
= ∛30.13 cm³
= 3.1 cm
So, the radius of the scoop is r = 3.1 cm
An architect measures a beam to be 96.55 centimeters long, with an accuracy of plus or minus 0.02 centimeter. Which equation can be used to find the limits of the actual length of the beam? |x−96.55|=0.02start absolute value x minus 96 point 5 5 end absolute value is equal to 0 point 0 2 |96.55−0.02|=xstart absolute value 96 point 5 5 minus 0 point 0 2 end absolute value is equal to x |x+96.55|=0.02start absolute value x plus 96 point 5 5 end absolute value is equal to 0 point 0 2 |96.55+0.02|=x
Answer:
|96.55−0.02|= x
|96.55+0.02|=x
Step-by-step explanation:
Given that:
Measured length of beam = 96.55 cm
Measurement accuracy = plus or minus (± 0.02cm)
Limits of actual length of the beam:
Let limit of actual length = x
Lower limit :
|measured length - accuracy| = x
|96.55 - 0.02| = x
96.53) x
Upper limit :
|measured length + accuracy| = x
|96.55 + 0.02| = x
96.57 = x
Esmeralda draws a scale drawing of a rectangular community garden she helps manage. The scale factor from the drawing to the garden is 20. Based on the measurements of Esmeralda's drawing, what is the perimeter of the community garden?
Answer:
20
Step-by-step explanation:
The perimeter of the community garden is 130 unit.
What is Scale Factor?A scale factor is a numerical value that can be used to alter the size of any geometric figure or object in relation to its original size. It is used to find the missing length, area, or volume of an enlarged or reduced figure as well as to draw the enlarged or reduced shape of any given figure. It should be remembered that the scale factor only affects how big a figure is, not how it looks.
Given:
Scale factor = 20
After Scale factor the Dimension are
l = 2 1/4 x 20 = 9/4 x 20
l = 45
and, w = 1 x 20 = 20
So, Perimeter of rectangular Garden = 2( l +w)
= 2 ( 45+20)
= 2 ( 65)
= 130 unit.
Hence, the Perimeter is 130 unit.
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Zheng was curious whether △ABC and △CED are similar. He wrote a proof and came to the conclusion that they are not similar, but his proof is wrong. What is the first mistake Zheng made in the proof? Choose 1 answer:
Answer:
C
Step-by-step explanation:
Zheng made a mistake as the side AC does not correspond to the side CD. The correct option is C.
What is congruency?The Side-Angle-Side Congruence Theorem (SAS) defines two triangles to be congruent to each other if the included angle and two sides of one is congruent to the included angle and corresponding two sides of the other triangle. An included angle is found between two sides that are under consideration.
In the given figure the triangles △ABC and △CED are similar the incorrect statement made by Zheng is that the side AC does not correspond to the side CD.
It means that the △ABC and △CED will not be similar to each other. But the two triangles △ABC and △CED are similar.
Therefore, Zheng made a mistake as the side AC does not correspond to the side CD. The correct option is C.
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2 and 3 fiths times 5/6 express youre answer in the simplist form
Answer:
2 and 1/6, hope this helps :)
what is the distance between 8 1/2 and 4 1/2?
Answer:
4
Step-by-step explanation:
just subtract 4.5 from 8.5
A fraction is a way to describe a part of a whole. The distance between 8 1/2 and 4 1/2 is 13 feet.
What is a Mixed Fraction?A mixed fraction is a fraction that contains a whole number and a fraction whose denominator is greater than the numerator. A mixed fraction can be converted as,
2 1/2 = (2×2 + 1)/2
= 5/2
= 2.5
Now, the distance between them
Distance = (8 1/2) feet + (4 1/2) feet
Converting Mixed fractions to fractions,
(8×2 + 1)/2 + (4×2 + 1)/2
= 17/2 + 9/2
= (17+9)/2
= 26/2
= 13 feets
Hence, the distance between 8 1/2 and 4 1/2 is 13 feet.
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The horizontal stretch by a factor of 2 and a translation 2 units up
Answer:
2 _ 3x. 14. f(x) = 4x2 + 5; horizontal stretch by a factor of 2 and a translation 2 units up, followed by a reflection in the x-axis. 0 Replace X X 3 35+2 3 -(x+7).
Step-by-step explanation:
eeeeeeee if u can answer this i will give u brainly c:
Between each point of "5" there are 10 little squares in between and each number passes every 2 little squares. So we can use this to solve the questions.
Part A:
Count all the pupils who scored "more" than 7 using the assumption we made above.
12 scored more than 7
Part B:
Since we know that 14 scored more the seven, count all of the pupils who scored 7 and less.
15 scored a seven or less.
Add both numbers.
12 + 15 = 27 total pupils
Part C:
The assumption we had to make was to count each two little squares that represent one pupil to find the answer for Part B.
Best of Luck!
Answer:
the person above is 100% right
Step-by-step explanation:
Simplify this i need help
Answer:
Step-by-step explanation:
√2x(7 + √2x)
7√2x + √2x ·√2x
7√2x + 2x
or
2x + 7√2x
A is the answer
If RS = 34 and QS = 72, find QR.
Answer:
106 you have to add both values and i did add using my calculator and it was 106
Step-by-step explanation:
Josh is trying to find the least common multiple (LCM) of 6 and 8. His work is shown at the right. What is Josh's mistake?
Explain how to find the correct LCM of 6 and 8.
Answer: C is the valid answer to the mistake part
Step-by-step explanation:
6: 2x 3
8: 2x 2 x 2
all together: 2x2x2x2x3 = 48
They were finding the prime factorization and what they were trying to find was the lcm.
PQ= 2x
RQ=3x+1
What is the value of x
Answer:
Boom boom eat my but cheeks
Step-by-step explanation:
Given g(x) = 3x+3, find g(6)
Answer:
g(6)=21
Step-by-step explanation:
Given g(x)= 3x+3, Find g(6)
1. Replace g(x) with g(6), and x with 6. The equation will now look like this: g(6)=3(6)+3
2. Multiply 3 and 6, to equal 18. The equation will now look like this: g(6)=18+3
3. Add 18 and 3 to equal 21. The Answer is g(6)=21
8=16+(y-1)
how do i solve this?
Answer:
y=-7 :)
Step-by-step explanation:
remove the parentheses
8=16+y-1
subtract the numbers
8=15+y
move variable to the left-hand side and change it's sign
-y=15-8
subtract the numbers
-y=7
change the sides on both sides of the equation
y=-7
hope it help <3
Answer:
y=2
Step-by-step explanation:
8= 16y + 16
16-8= 16y
8= 16y
y= 2
What is the mode of the data set? 2 0 5 7 8 9 8 2 1 8 A. 2 and 8 B. no mode C ,8 only D, 2 only
Answer:
The answer is C. 8
Step-by-step explanation:
First we should reorganize the data set so that it is easier to see the mode:
0, 1, 2, 2, 5, 7, 8, 8, 8, 9
Since mode is the value that occurs the most, we just have to look at the data set and find out which value here occurs the most:
0 - Once
1 - Once
2 - Twice
5 - Once
7 - Once
8 - Thrice
9 - Once
From this we can see that the value 8 occurs the most.
Therefore, the answer is C. 8
I WILL GAVE BRAINLIEST!!!!!!!!!!!!!!!!!!!
Answer:
31
Step-by-step explanation:
Recognize that all angles of a triangle add up to 180 degrees, so your equation would be x + 16 + x + 24 + 78 = 180.
Step 1: Combine like-terms.
2x + 118 = 180
Step 2: Subtract 118 from both sides to isolate the variable.
2x = 62
Step 3: Simplify
x = 31
7.6g of sugar is needed for every cake made. How much sugar is needed for 10 cakes?
Answer:76
Step-by-step explanation: The answer is 76 because if you multiply 7.6 by 10 you shall receive 76 cakes.
What is 4x+3>15 inequalities
Answer: x>3
Step-by-step explanation: 4x+3-3>15-3
4x>12
4x/4>12/4
=x>3
4d - p = m
Solve for d
Answer:
d=(m+p)/4
Step-by-step explanation:
The given equation solved for d as d=(m+p)/4.
What is an equation?In mathematics, an equation is a formula that expresses the equality of two expressions, by connecting them with the equals sign =.
The given equation is 4d-p=m.
The given equation can be solved as
4d=m+p
Therefore, the given equation solved for d as d=(m+p)/4.
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evaluate each expression.
Example: Evaluate 10 increased by 8
Answer: 18
Evaluate: 20 decreased by 5
Answer:
15
Step-by-step explanation:if you take a way five from 20 you get 15 because 20-5 is 15
if you start at 1 and go to twenty 5 before that is 15
Pam received $125 for graduation and spend $8 of it a week. How many weeks can she do this
and still have more than $20 left?
Answer:
13 weeks
Step-by-step explanation:
8×13=104
125-104=21$
Which of the following equations is equivalent to the equation? 4x-6y=9
A. y=2/3x-3/2
B. y= -2/3x+3/2
C. y=3/2x-9/4
D. y= -3/2x+9/4
URGENTLY NEED ANSWER A S A P
Answer:
A. y=2/3x-3/2
Step-by-step explanation:
Subtract 4x over then divide both side by -6
Bill eats 3 slices of cornbread for breakfast that contain a total of 543 calories. How many
calories does each slice contain?
When the civil war began, president lincoln believed that it would only take a few weeks to defeat the rebellious states true or false
Answer:
it's true that when the civil war began, president Lincoln
Evaluate the expression for c = –1.4.
Write your answer as a decimal or whole number.
–21c2 =
Answer:
the answer for that equation is 58.8
Answer:
-41.16
Step-by-step explanation:
c = -1.4
-21c²
-21(-1.4)²
-21(1.96)
-41.16
Write an  equation of the line that passes through please (2, -2) and is parallel to line y=3x+9
Answer: y=3x-8
Step-by-step explanation:
To find the parallel line, you know that the slope must stay the same. If the slope is different, the graphs will touch at one point. This goes against parallel lines as they NEVER touch or cross.
y=3x+b
We can use the given point to find the y-intercept.
-2=3(2)+b [multiply]
-2=6+b [subtract both sides by 6]
b=-8
Now that we have found the y-intercept, we can finish our equation.
y=3x-8
I need help?! Please
Answer:
a=5
x=4
ax+3=23
5×4+3=23
Step-by-step explanation:
(z + 3)2
Draw me an area that shows the expression
Answer: 2z + 6
Step-by-step explanation: Distribute the 2 to z and 3.
13 14 14 16 16 16 16 18 18 19
What is the mean?