Answer:
7.7
Step-by-step explanation:
Answer:
7:7
Step-by-step explanation:
Convert the scientific notation into a standard form number,
1.23 x 10-5
Step-by-step explanation:
[tex]a^{-n}=\dfrac{1}{a^n}\\\\\text{therefore}\ 10^{-5}=\dfrac{1}{10^5}=\dfrac{1}{100000}=0.00001\\\\1.23\cdot10^{-5}=1.23\cdot0.00001=0.0000123[/tex]
[tex]a\cdot10^{-n}[/tex] - move the decimal point n place to the left
[tex]a\cdot10^n[/tex] - move the decimal point n place to the right
Examples:
[tex]1.2\cdot10^5=1\underbrace{20000}_{5\to}=120,000\\\\1.2\cdot10^{-5}=0\underbrace{.00001}_{\leftarrow5}2=0.000012[/tex]
I Mark got 54 out of 66 correct in his test.
What fraction of the marks did he get wrong?
Give your answer in its simplest form
Please help
Answer: The answer would be 2/11
Step-by-step explanation: Mark answered 54 questions correctly, so Mark missed 12 which gives you 12/66. Then that simplifies to 2/11
What is the measure of the indicated angle?
Answer:
The measure of the indicated angles is 62°.
Reason: vertical angles
Alvin and Simon shared £540 in the ratio 4:5. Alvin gave half of his share to Theo. Simon gave a tenth of his share to Theo. What fraction of the £540 did Theo receive.
Answer:
[tex]\frac{5}{18}[/tex]
Step-by-step explanation:
sum the parts of the ratio, 4 + 5 = 9 parts
Divide the amount by 9 to find the value of one part of the ratio
£540 ÷ 9 = £60 ← value of 1 part of the ratio , thus
4 parts = 4 × £60 = £240 ← Alvin's share
5 parts = 5 × £60 = £300 ← Simon's share
[tex]\frac{1}{2}[/tex] × £240 = £120
[tex]\frac{1}{10}[/tex] × £300 = £30
Theo receives £120 + £30 = £150 , which as a fraction is
[tex]\frac{150}{540}[/tex] ( divide numerator/ denominator by 30 )
= [tex]\frac{5}{18}[/tex] ← in simplest form
is 48 a perfect cube? why?
Answer:
yes, because it is an even number
Step-by-step explanation:
Answer:
So the square of 48 is not perfect square
Step-by-step explanation:
Which statements below are TRUE about perpendicular lines? I. Perpendicular lines intersect II. Perpendicular lines create right angles III. Perpendicular lines are collinear IV. Perpendicular lines never intersect V. Perpendicular lines are coplanar
Answer:
Step-by-step explanation:
Two lines are perpendicular to each other if they both intersects and the two lines are inclined at angle 90°
Since they are inclined at 90° to each other, hence they create right angles.
The lines can also lines on the same plane to form a right angles. This are called coplanar lines.
From the above explanation, the following are true;
I) Perpendicular lines intersect
II) Perpendicular lines create right angles
V) Perpendicular lines are coplanar
They are not collinear because they can't lie on the same straight line. Collinear lines are known to lie on the same straight line.
write 125 as a repeated multplication of 5 then write the power
Answer:
5×5×5=5³
Step-by-step explanation:
Answer:
A power, or exponent, represents how many times the term, in this case 5, is multiplied by itself. So multiply 5 by itself until you get 125. Then write your answer as 5ˣ where x is the number of times you multiplied 5 by itself.
Hopefully this helped. Please don't use this platform as a way to get free homework answers. You don't learn anything that way.
(-3,7) and (8,-6) found distance
AVIS rent a car is running a deal where you can rent a car for $49.99 and $0.99 per mile. if i rent a car and drive 25 miles, how much will I have to pay?
Answer:
$74.74
Step-by-step explanation:
$49.99 + $0.99 (25) =
$74.74
PLEASE HELP! IM IN 8TH AND I NEED SOMEONE TO EXPLAIN <3
Answer:
can u help me then i will help u:/
Step-by-step explanation:
Answer:
y=10x+35
so for 4 yoga classes, it is $75
so for 8 yoga classes, it is $115
so for 12 yoga classes, it is $155
Step-by-step explanation:
So 35 is only a one-time payment and it is over so we just add 35, but $10 is the rate of change depending on how much yoga class you have been into so the equation will be y=10x+35
Explanation for 4 yoga classes: y=10(4)+35 which is 75
Explanation for 8 yoga classes: y=10(8)+35 which is 115
Explanation for 12 yoga classes: y=10(12)+35 which is 155
Hope this helps!
You have five quarts of paint it takes 5/8 quarts to paint each chair you are asked to paint how many chairs can u paint
Answer:
8 chairs
Step-by-step explanation:
5 quarts= 40/8 quarts
1 chair= 5/8 quarts
40/8-5/8x=0
(-40/8)/(-5/8)=x
8 chairs
What is the slope between point A (-9, 4) and B ( 3, -2)
I NEED HELP ASAP
a)1/2
b)-1/2
c)2
d)-2
e)3/2
Slope can be calculated using the formula: m= [tex]\frac{y2 - y1}{x2 - x1}[/tex]
y1/x1 represents the first number in the bracket
y2/x2 represents the second number in the bracket
Calculation
m = [tex]\frac{y2 - y1}{x2 - x1}[/tex]
m =[tex]\frac{4 - (-2)}{(-9)-3}[/tex]
m= 6/-12
m= -0.5 or -1/2
Therefore, the answer is B.
Triangle R S Q is shown. Angle R S Q is cut by perpendicular bisector l through point S and through midpoint T. The length of line segment R T is x, the length of line segment T Q is 8, the length of line segment Q S is 10, and the length of line segment R S is 10. What is the length of segment TR?
Answer:
RT = 8
Step-by-step explanation:
The given parameters for the triangle are;
The vertices of the given triangle = RSQ
The point on the perpendicular bisector = Pont S and T
The length of the line segment RT = x
The length of the line segment TQ = 8
The length of the line segment QS = 10
The length of the line segment RS = 10
Given that I is a perpendicular bisector that passes through the vertex S, we have;
The line I bisects the segment RQ at point T into equal segments TQ and TR
Therefore, TQ ≅ TR and we have TQ = TR = 8
TR = 8
TR = RT (reflexive property)
Therefore; RT = 8.
Answer:
RS = 12
Step-by-step explanation:
if your question is asking for RS
A researcher found that 55% of families in the United States have one child under the age of 21, 22% have two children under the age of 21, 15% have three children under the age of 21, 5% have 4 children under the age of 21and 3% have 5 or more children under the age of 21. If a family is selected at random, what is the probability the family has 1 or 3 children under the age of 21?
Answer:
67% or 0.67
Step-by-step explanation:
Given that:
P(1 child under age 21) = 55%
P(2 children under age 21) = 22%
P(3 children under age 21) = 15%
P(4 children under age 21) = 5%
P(5 or more children under age 21) = 3%
If a family is selected at random, what is the probability the family has 1 or 3 children under the age of 21?
P(1 or 3 children under age 21):
Either the selected family has 1 child under 21 years of age OR the selected family has 3 children under 21 years of age ;
P(1 child under age 21) + P(3 children under age 21)
= 55% + 15%
= 67% = 0.67
i need help with this equation
-17 = -7c + 4
Answer: c = 3
Step-by-step explanation:
Hey there! I will give the following steps, if you have any questions feel free to ask me in the comments below.
Step 1: Subtract 4 from both sides.
-17 - 4 = -7c
Step 2: Simplify -17 - 4 to -21.
-21 = 7c
Step 3: Divide both sides by -7.
[tex]\frac{-21}{-7}[/tex] = c
Step 4: Two negatives make a positive.
[tex]\frac{21}{7}[/tex] = c
Step 5: Simplify [tex]\frac{21}{7}[/tex] to 3.
3 = c
Step 6: Switch sides.
c = 3
~I hope I helped you! :)~
Help me pls i need this to get through my homework
Answer:
x is greater than negative 4, and less than or equal to 5
Step-by-step explanation:
Answer: X is greater than negative 4 and less than 5
Step-by-step explanation: The line is from -4 to 5, the unfilled dot on top of -4 means the number can't be 4, it must be greater and the filled in dot on 5 means it is equal to or less than 5.
What is the second step of a tax/tip/markup problem?
Question 3 options:
A: Adding the Original $ and the Tax/Tip/Markup $
B: Subtracting the Original $ and the Tax/Tip/Markup $
C: Adding the Original $ and the Percent
D: Subtracting the Original $ and the Percent
Answer:
I think it might be C im not sure tho
f(x) = 4x^2 - 7x + 7 find f(7)
Answer:
ummmm what grade do you are
Answer:
f(7)=140
Step-by-step explanations:
Evan earned $26 for 4 hours of babysitting.
What equation can be used to model his
total earnings y for babysitting x hours?
Then graph the equation on the coordinate
plane. What is the unit rate? How is that
represented on the graph?
The equation y = 6.5x will represent the situation and the unit rate will be $6.5/hour.
How to plot a graph?A graph is a diagram that shows the fluctuation of one variable in relation to one or more other variables.
In order to plot the graph, we need to find out y's values corresponding to x's value
After that, we need to substitute the values of x's and y's into the coordinate geometry.
Given that,
Evan earned $26 for 4 hours of babysitting.
If total earnings y for babysitting x hours then,
y = (26/4)x ⇒ y = 6.5x will be the equation.
The unit rate of the function is y/x = $6.5/hour.
Hence "The equation y = 6.5x will represent the situation and the unit rate will be $6.5/hour".
For more information about the graph of a function
brainly.com/question/27757761
#SPJ2
can 7in and 1lb be in the same unit
Answer:
Yes
Here you gooooooo
BRAINLIEST !!! HOW MANY BURGERS CAN YOU MAKE WITH 1 BILLION BURGERS ??
each cow can make 1,200 burgers !
explain
Answer:
Well if Your asking for burgers the question makes no sense but if your asking how many cows it takes to make 1 billion burgers it would be 833,333 or round it 833,334
The graph shows the cost of a lunch in a school’s cafeteria since school started.
Which is correct about the graph’s slope?
Its slope is positive.
Its slope is negative.
Its slope is zero.
It has no slope.
Answer: It's slope is zero
Step-by-step explanation:
Answer:
the slope is zero
Step-by-step explanation:
it is going straight
Patty's Pies made 2 peach pies using 10 cups of peaches. They made 3 pies using 15 cups of peaches and 4 pies using 20 cups of peaches. Predict how many cups of peaches would be needed to make 9 pies. Explain.
7TH GRADE ME PLZZ thanks
Answer:
-2/6 or -1/3
Step-by-step explanation:
Please if anyone can answer?
Answer:Oof your stuff looks hard!
Step-by-step explanation:
Answer:
n = - 7
Step-by-step explanation:
[tex] \frac{2m + 5}{n + p} = 9 \\ \\ plug \: m = 2 \: and \: p = 8 \\ \\ \frac{2 \times 2 + 5}{n + 8} = 9 \\ \\ \frac{4 + 5}{n + 8} = 9 \\ \\ \frac{9}{n + 8} = 9 \\ \\ n + 8 = \frac{9}{9} \\ \\ n + 8 = 1 \\ \\ n = 1 - 8 \\ \\ n = - 7[/tex]
5(2x+3)+3x=4(x+7)+5 show your work
Answer:
X = 2
Step-by-step explanation:
select all values that make the equation true 2(x-8)=x+5x
x= -4
x= -16
x= -2
x= -0
Answer:
x = -4
Step-by-step explanation:
2(x-8)=x+5x
Combine like terms
2(x-8) = 6x
Divide by 2
2(x-8)/2 = 6x/2
x-8 = 3x
Subtract x from each side
x-8-x = 3x-x
-8 = 2x
Divide by 2
-8/2 = 2x/2
-4 =x
Is y=x+3.75 proportional
Answer:
NO
Step-by-step explanation:
if we plug in 1 = x, we get 4.75 = y. If this is proportional, then y/x will be the same in each scenario.
Let's plug in 2 = x to get y = 5.75. 5.75/2 = 2.875 DOES NOT EQUAL 4.75/1 = 4.75.
That means that the relationship is NOT proportional.
The easier way to tell is to see that there is a number being added, so it can't be a proportional relationship.
Hope this helps and pls do mark me brainliest if you can:)
Answer: No
Step-by-step explanation:
The equal y=x+3.75 is expressed in slope intercept form meaning it doesn't fit the proportional equation which is y=kx and k is the slope.
Because of the y-intercept of the line it makes it not proportional .
Identify equations, expressions, and inequalities
Identify whether each phrase is an expression, equation, or inequality.
HUH PLEASE HELP
Answer:
the middle one goes to the top, top one goes to the middle and bottom stays there
Step-by-step explanation:
Can someone help me!! what is the smallest positive counterclockwise roation if the point is rotated at 272 degrees clockwise
Given:
The point is rotated at 272 degrees clockwise.
To find:
The smallest positive counterclockwise rotation for the given clockwise rotation.
Step-by-step explanation:
Clockwise rotation = 272°
We need to subtract the given clockwise rotation from 360° to get the smallest positive counterclockwise rotation, because one complete circle is 360°.
Counterclockwise rotation = 360° - Clockwise rotation
= 360° - 272°
= 88°
Therefore, the smallest positive counterclockwise rotation is 88°.