Please answer correctly !!!!!!!!!!!!!!!!! Will mark brainliest !!!!!!!!!!!!!!!!!
Answers
Answer:
4
Step-by-step explanation:
9x - 5 = 7x + 3
2x = 8
x = 4
Related Questions
Write 0.0000000642 in scientific notation.
Answers
Answer: 6.42 × 10^ − 8
Hope this helps!
The number 0.0000000642 in scientific notation is written as; 6.42 × 10^ − 8
How does scientific notations work?The number is written in the form [tex]a \times 10^b[/tex] where we have [tex]1 \leq a < 10[/tex]
The number b shows the order, which is the most important figure for which scientific notation is used. It tells us how much order large or small a value is in powers of 10.
A Better readability due to compact representation , the value in terms of power of 10 is known, which helps in easy comparison of quantities differing by a large value.
Here The number 0.0000000642 in scientific notation is written as;
[tex]6.42 \times 10^{ -8}[/tex].
Learn more about scientific notation here:
https://brainly.com/question/3112062
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Please help!! I chose an answer but I’m not sure! DUE IN 3 MINS
Answers
Answer:
Its c
Step-by-step explanation:
Because the f(x)= 0 is on the x line
and -2, 1, or 3 only
evaluate -3/5x+y by replacing x with -1/2 and y with 1/2 ?
yeah I’m bad at math help out this is frustrating.♀️
Answers
The answer is 4/5
Substitute x with -1/2 and y with 1/2.
So the equation will look like this:
= -3/ 5(-1/2) + (1/2)
= -3/ -2.5 + 1/2
= -3/ -2
= 1.5
Therefore, the answer is 3/2 or 1.5.
Mark got 18 out of 25 questions correct on his science test. What percent of the questions did he get correct
Answers
Answer:
72%
Step-by-step explanation:
Turn the denominator to 100.
So: 18/25 times 4 equals 72/100
72/100= 72%
*You turn the denominator into 100 because all percents are out of 100.*
the unit cost of pencils purchased by the city's public schools is $.0435 each. Round to the nearest cent
Answers
Terry is feeling crafty and wants to put a ribbon border on her boring clock to jazz it up a bit. If the clock has a radius of 15inches, how many inches of ribbon will Terry need to use to surround the clock? Round your answer to the nearest hundredth
Answers
Perimeter=circumference of circle
Circumference=2 pi r
=pi=22/7 or 3.14
=2*3.14*15=94.2
Rounded off=100
solve each of these equations.
2(x+5)=3x+1
Answers
Answer:
x = 9
Step-by-step explanation:
2(x + 5) = 3x + 1
open the parenthesis
2x + 10 = 3x + 1
subtract 2x from both sides of the equation
2x - 2x + 10 = 3x - 2x + 1
10 = x + 1
subtract 1 from both sides of the equation
9 = x
Answer:
Step-by-step explanation:
Substitute
2x+10=3x+1
Subtract 3x to other side
-x+10=1
Subtract 10
-x=-9
divide -1 both sides
x= 9
The shape on the left is transformed to the shape on the right
Answers
Answer:1
Step-by-step explanation:
person credits
Which point is located on the x-axis?
(-5, 1)
(0, 5)
(1, 0)
(2, 2)
Answers
EXPLANATION:
the horizontal line is x, the vertical line is y.
so you go up one(1 is positive in this case) and right 0(you don’t move) so it stays in the X axis
Answer:
the correct answer is c
Step-by-step explanation:
edg
The graph to the right represents the cost of a taxi where X is distance and y is cost in dollars what conclusion can you make?
A) the taxi costs $1
B) The taxi will only stop once
C)The taxi will only take you farther than 1 mile
D) The taxi costs $1 just to get into a taxi
Answers
Answer:
The taxi costs $1 just to get into a taxi
Step-by-step explanation:
The base cost the taxi charges for it to be hired is $1 which is the point on the graph where the line intercepts the y-axis. At that point, distance or miles travelled is 0.
Therefore, we can conclude that the taxi would charge a customer for just to get a taxi, and the total cost will be dependent on the additional charges paid in addition based on the number of miles the customer will be driven to their destination.
The $1 is just the charge fee paid by the customer in addition to the per-mile charge he would pay.
The formula to convert °F to °C is C =
CF - 32)
Convert 50°C to °F.
Answers
Answer:
50°C = 122°F
Step-by-step explanation:
Formula:
(50°C × 9/5) + 32 = 122°F
Hope it helps!!
Answer:
The answer is 122°F
Step-by-step explanation:
[tex]formula \: (celcius° \times 9 \div 5) + 32[/tex]
F°=(c°×9÷5)+32
F°=(50°×9÷5)+32
F°=(50°×1.8)+32
F°=90+32
F°=122°F
yo please help i have no idea how to do this(the first 2 questions the tecaher did)
Answers
Answer:
Step-by-step explanation:
You'll need to learn the formula for the circumference of a circle. If the radius is r, the circumference C is C = 2πr. It appears that your teacher is using pi for the exact circumference and 3.14 for the approximate circumference.
The radius of the first circle is 5 in. Thus, the exact circumference is
C = 2πr = 2π(5 in) = 10π in, and the approximate circumference is
C = 2(3.14)(5 in) = 31.4 in
Add: x 5 - 4x 4 + 7x 3 + 8, 9x 3 + 7x 2 - 10, and -2x 5 + 7x 4 - 3x + 8.
Answers
Answer:
66 x+6
Step-by-step explanation:
Because you add from the x's then you go on from the hope this helped :) .
Find the coordinates of the midpoint of segment AB with endpoints A(-2,3) and B(5,-2)
Answers
Answer:
The coordinates of the midpoints are (3/2, 1/2)
Step-by-step explanation:
To find the midpoint you must se the midpoint formula. Using this formula, when you plug in the points given and you simplify, you find out the midpoint is the coordinates (3/2, 1/2). I hope this helps!
What number when subtracted from the sum of 5.6 and 9.4 will give 12.8? *
Answers
Answer:
2.2
Step-by-step explanation:
5.6-9.4=15.0
so you subtract 12.8 from 15.0 which gives you the answer 2.2 so your answer is 2.2
Help!! Please! Its algebra!!
Answers
Answer:
y - 7 = -4 ( x -2 )
Step-by-step explanation:
just use the given informations:
The base formula:
y - y(1) = m ( x -x(1) )
remember that "m" typically refers to the slope of a line
There is a given set of points on the line: (2, 7)
hence just plug in the numbers:
x(1) = 2
y(1) = 7
m = -4
and you get
y - 7 = -4 ( x -2 )
Y=-4(x-2)
hope it helps
HELP find angle relationships(picture included)
Answers
Answer:
1. <I and <J are vertical angles
2. <G and <H form supplemantary angles
3. <G and <C are corresponding angles
4. <G and <F are alternate interiors
5. <I and <D are alternate exteriors
What Are Four Ways To Write A Relation?
Answers
Step-by-step explanation:
verbally
algebraically
numerically
graphically.
Help me am confused
Answers
9514 1404 393
Answer:
{ (-441/23, 433/23) }
Step-by-step explanation:
The "cross-multiplication method" is usually shown as follows:
1. rewrite the equations in general form: ax +by +c = 0
2. write the coefficients in two row in the order b, c, a, b.
3. form three products, each being the number in the first row times the number to its right in the second row. That is, b1·c2, c1·a2, a1·b2
4. form three more products, each being the number in the second row times the number to its right in the first row. That is, b2·c1, c2·a1, a2·b1
5. form three differences, subtracting the products of step 4 from those of step 3. Call these differences d1, d2, d3. (For example, d1=b1c2-b2c1.)
6. The values of x and y satisfy the equations ...
x/d1 = y/d2 = 1/d3
which is to say, ...
x = d1/d3, and y = d2/d3
_____
For your equations, we can rewrite them as ...
11x +12y -15 = 012x +11y +23 = 0Then our rows of coefficients are ...
[tex]\begin{array}{cccc}12&-15&11&12\\11&23&12&11\end{array}[/tex]
And our differences are ...
d1 = 12(23) -11(-15) = 441
d2 = -15(12) -23(11) = -433
d3 = 11(11) -12(12) = -23
The relations between x and y are ...
x/441 = y/-433 = 1/-23
so, x = -441/23 and y = 433/23
The solution set is one ordered pair: { (-441/23, 433/23) }.
_____
Additional comments
The final solution is identical to the formula arrived at using Cramer's Rule. Calling this the "cross-multiplication method" avoids any discussion of matrices and determinants.
Which is greater -3 or -5
Answers
Answer: -3
Step-by-step explanation:because -3 looks like it is smaller, but when a number is negative, the smaller the number, the greater the value actually is.
Given m < PQS = 45° and m
Answers
Answer:
19 degrees
Step-by-step explanation:
Answer:
19° is the answer of m angle PQR.Thank you ☺️☺️
Write as a simplified unit rate: same drove 250 miles with 10 gallons of gas
Answers
Answer:
25 miles per gallon
Step-by-step explanation:
hope that's what you were looking for
2 + 31 X
To
+ 14 x
10
2.345
100
O
I
Answers
Answer:
12-12=21
Step-by-step explanation:
i think it is that
The remote interior angles of a triangle measure 45° and 60°. What is the measure of the exterior angle?
Answers
In the diagram, AC=BD. Show that AB=CD
Answers
please help. I have 5 mins...
Find the value of x. *
66 (3x + 21) 57°
12
15
57
10
Answers
Answer:
15
Step-by-step explanation:
How many teaspoons are in half an ounce?
Answers
Answer:
3
Step-by-step explanation:
Answer:
3 teaspoons
Step-by-step explanation:
There are 6 teapsoons in one ounce.
We are looking for the number of teaspoon in HALF an ounce.
We can divide by 2 to find half the number of teaspoons in one full ounce.
6 / 2 = 3 teaspoons per half an ounce.
Best of Luck!
b. His sister, Janine, used a light bulb that consumed 6080 joules of energy in 190
seconds. What is the unit rate at which this light bulb used energy?
Answers
Answer: 32 joules per second. That is equivalent to 32 Watts
Step-by-step explanation:
Divide units by time . 6080/190 = 32
1 joule per second is one watt.
Josie went to the local hairstylist to get her hair cut. It cost $34 for the haircut. Josie tipped the hairdresser 20%. What was the total amount Josie paid? Round to nearest cent.
Answers
Answer:
$40.80 is the answer
3x+2x?? solve for x
btw any cute guys on here??
Answers
Answer:
=5x
Step-by-step explanation:
Answer:
x=1
Step-by-step explanation:
3x+2x=5x
5x÷5 x=1
this is the right answer