Answer:
9.464*10^2 is correct answer.
ok so i have 2 questions in math but whoever is savage enough to do them i will award brainliest so ya. PLZ DO THEM BOTH!
Answer:
Step-by-step explanation:
2x > -7
x > -7/2
if x > -7/2 2x+7
if x = -7/2 0
if x< -7/2 -2x-7
x-4+7>0
x+3 > 0
x > -3
If x > -3 (x-4)+7
if x = -3 0
if x< -3 (-x+4)-7
Use the scientific calculator if needed
Sin^-1 squareroot 2/2
Answer:
sin^-1 square root 2/2
=90
Mr. Clark plans to spend no more than $400 on sandwiches and water for a work meeting. Each case of water costs $7.00 and each sandwich costs $5.00. Which inequality would Mr. Clark use to determine how many sandwiches, s, and how many cases of water, w, he can buy?
Answer:
[tex]7w+5s\leq 400[/tex]
Step-by-step explanation:
Money to be spent is not more than $400.
Cost of a case of water = $7
Cost of each sandwich = $5
Let number of cases of water bought be [tex]w[/tex]
Number of sandwiches bought be [tex]s[/tex]
From the question we get
[tex]7w+5s\leq 400[/tex]
The inequality which would determine how many sandwiches, and how many cases of water that can be bought is [tex]7w+5s\leq 400[/tex].
Find RS 2x+15 3x+5 6x-37
Answer:2x+15+6x-37/2=3x+5
We move all terms to the left:
2x+15+6x-37/2-(3x+5)=0
We add all the numbers together, and all the variables
8x-(3x+5)+15-37/2=0
We get rid of parentheses
8x-3x-5+15-37/2=0
We multiply all the terms by the denominator
8x*2-3x*2-37-5*2+15*2=0
We add all the numbers together, and all the variables
8x*2-3x*2-17=0
Wy multiply elements
16x-6x-17=0
We add all the numbers together, and all the variables
10x-17=0
We move all terms containing x to the left, all other terms to the right
10x=17
x=17/10
x=1+7/10
The value of RS is 31.
What is an expression?An expression contains one or more terms with addition, subtraction, multiplication, and division.
We always combine the like terms in an expression when we simplify.
We also keep all the like terms on one side of the expression if we are dealing with two sides of an expression.
Example:
1 + 3x + 4y = 7 is an expression.
3 + 4 is an expression.
2 x 4 + 6 x 7 – 9 is an expression.
33 + 77 – 88 is an expression.
We have,
If RS and UT are parallel, then their corresponding sides are proportional. Thus,
RS/UT = (2x + 15)/(6x - 37)
Now,
RS/UT = (2x + 15)/(6x - 37)
Cross-multiplying.
(2x + 15)UT = RS(6x - 37)
Expanding and simplifying.
2xUT + 15UT = 6xRS - 37RS
Rearranging.
6xRS - 2xUT = 15UT + 37RS
Factorizing.
2x(3RS - UT) = 15UT + 37RS
Dividing both sides by (3RS - UT):
2x = (15UT + 37RS)/(3RS - UT)
Substituting RS = 2x + 15 and UT = 6x - 37:
2x = (15(6x - 37) + 37(2x + 15))/(3(2x + 15) - (6x - 37))
Simplifying
2x = (90x - 555 + 74x + 555)/(6x + 36)
2x = (164x)/(6x + 36)
Multiplying both sides by (6x + 36):
12x² + 72x = 164x
Simplifying
12x² - 92x = 0
Factoring out 4x.
4x(3x - 23) = 0
So,
x = 0 or x = 23/3.
Since x cannot be 0 (as it would make UT = -37, (which is not possible),
x = 23/3.
Substituting this value of x into RS = 2x + 15.
RS = 2(23/3) + 15 = 31
Thus,
The value of RS is 31.
Learn more about expressions here:
https://brainly.com/question/3118662
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A pilot took 1/2 hr to complete 1/3 of his trip. How much longer will it take him to complete his trip?
Answer:
1 hour
Step-by-step explanation:
Somebody help me out please
Answer:
the correct answer is d.
Step-by-step explanation:
i hope this helps :)
Answer:
D.
Step-by-step explanation:
The line crosses the x-axis at 4 and the y-axis at -2.
Answer: D.
B
15
C
9
A
Find the length of "a"using
the Pythagorean Theorem.
Enter
Answer:
12
Step-by-step explanation:
Im assuming that 15 is the hyp. of the triangle.
Multiply 9 twice and 15 twice
Then subtract 225-81 and you get 144. Find the square root and you get 12.
There are 6,000 hotel rooms in Sean's city. During a convention, 4200 of the hotel rooms were occupied. What percentage of the hotel rooms in the city were occupied during the convention?
4200/6000×100
two zero of the 6000 will cancel two zero of 100
6÷700 and 60
140 over 10
5÷140 and 10
then you divide
70/2
answer is
70%
Helpppppp!!!!!!!!!!!!!
28
The outlier would be 28 because it is much lower than the rest of the numbers in the group and removing it would make the mean increase.
What is an equation of the line that is perpendicular to -x+3y=9 and passes through the point (-3,2)
Answer:
y=-3x-7
Step-by-step explanation:
the line is currently in standard form (ax+by=c). Let's put it into slope-intercept form (y=mx+b)
-x+3y=9
add x to both sides
3y=x+9
divide by 3
y=1/3x+3
perpendicular lines have slopes that when multiplied, equal -1.
to find the slope (m) of our new line:
1/3m=-1
multiply by 3
m=-3
the slope of the new line is -3
here's our equation so far:
y=-3x+b
we need to find b (y intecept)
since the line passes through the point (-3,2), it should be a solution in the equation (plug it in, and the result is a true statement). We can also use it to find b
so, substitute the pointt into the equation:
2=-3(-3)+b
multiply
2=9+b
subtract
-7=b
so the equation of the line is y=-3x-7
Hope this helps!
8 + 7m + 5 = 27
show your work
Answer:
m=2 :)
Step-by-step explanation:
8+7m+5=27
13+7m=27
27-13=14
7m=14
m=2
M=2
[tex]8 + 7m + 5 = 27[/tex]
[tex]8 + 7m= 27 - 5[/tex]
[tex]8 + 7m = 22 [/tex]
[tex]7m = 22 - 8[/tex]
[tex]7m = 14[/tex]
[tex]14 \div 7m \\ = 2[/tex]
PLEASE HELP!!!
A person invests $2,730 in an account that earns 4.2% annual interest. Find when the value of the investment reaches $5,000. If necessary, round to the nearest tenth.
Step-by-step explanation:
You want to calculate the interest on $2730 at 4.2% interest per year after 5,000 year(s).
The formula we'll use for this is the simple interest formula, or:
Where:P is the principal amount, $2730.00.
r is the interest rate, 4.2% per year, or in decimal form, 4.2/100=0.042.
t is the time involved, 5....year(s) time periods.
So, t is 5....year time periods.
To find the simple interest, we multiply 2730 × 0.042 × 5 to get that:
The interest is: $573.30
a box of cereal states that there are 90 calories in a 3/4-cup serving. How many calories are there in 4 cups of the cereal.
Answer:
480 calories
Step-by-step explanation:
4 ÷ 3/4= 5 1/3 servings
90 x 5 1/3= 480
Cindy and her friends went out to breakfast. The total bill came to $49.87. They have to pay 6.2% sales tax and want to leave a 18% tip. What was the final cost of the bill?
Answer:$60.94
Step-by-step explanation:
49.87+11.07(the total of tax plus tip)=60.94
will mark brain list
Answer:
3 bags
Step-by-step explanation:
Find the length of side x in simplest radical form with a rational denominator
Find an equation in standard form for the ellipse with the vertical major axis of length 16 and minor axis of length 10.
a. x squared divided by 5 plus y squared divided by 8 = 1
b. x squared divided by 25 plus y squared divided by 64 = 1
c. x squared divided by 8 plus y squared divided by 5 = 1
d. x squared divided by 64 plus y squared divided by 25 = 1
Answer:
c
Step-by-step explanation:
Please select the best answer from the choices provided
A
B
C
D
Answer:
Option A
Step-by-step explanation:
[tex]A=\begin{bmatrix}-3 & -9 & -3\\ -4 & -3 & 9\\ 7 & 9 & -10\end{bmatrix}[/tex]
[tex]-7A=\begin{bmatrix}21 & 63 & 21\\ 28 & 21 & -63\\ -49 & -63 & 70\end{bmatrix}[/tex]
[tex]B=\begin{bmatrix}9 & 1 & 6\\ 3 & -10 & 5\\ -1 & 9 & -9\end{bmatrix}[/tex]
[tex]-4B=\begin{bmatrix}-36 & -4 & -24\\ -12 & 40 & -20\\ 4 & -36 & 36\end{bmatrix}[/tex]
[tex]-7A-4B=\begin{bmatrix}-15 & 59 & -3\\ 16 & 61 & -83\\ -45 & -99 & 106\end{bmatrix}[/tex]
Option A is the answer.
Ivanna says that 24/9 equals 9 divided by 22. Is she correct? Explain in detail.
Please no silly answers, also I will put you as brainliest if you follow all the directions and you are the first to reply.
Answer:
Step-by-step explanation:
24/9=2.66
9/22=.409
they are not equal.
fraction form 24/9= 2 6/9 simplified to 2 2/3
Answer:
No, 24/9 ≠ 9/22
Step-by-step explanation:
The product of cross multiplying would be 1 if they were equal, of which it isn't and thus they are not.
No calculator is needed unlike answers others have given...
what is 1 + 3(x + 7) simplified
Find the measure of angle E.Angles 2
Question 3 options:
40
63
77
117
Not enough information
Answer:
maybe c
Step-by-step explanation:
Answer: Alternate interior angles have the same measure. As we know that 'angle 1 ' and 50° are alternate interior angles hence they must be equal. Also we now that sum of all the angles of a triangle is equal to 180°. Hence, m∠2=15°.
Step-by-step explanation:
describe how to determine if a function is a linear or non-linear from a table
Answer:
To see if a table of values represents a linear function, check to see if there's a constant rate of change. If there is, you're looking at a linear function!
Step-by-step explanation:
A 8-foot ladder touches the side of a building at a point 6 feet above the ground. At what height would a 22-foot ladder touch the building if it makes the same angle with the ground as the shorter ladder? Round to the nearest tenth if necessary.
Answer:Katie is 100 cm tall and is standing so that her mother's shado covers her shadow. She is 90 cm from her mother and her mother's shadow is 225cm long. How tall is her mother?
Step-by-step explanation:
What is the value of x?
Answer:
33
Step-by-step explanation:
3x+5+x+x+10=180
5x+15=180
divide by 5
x+3=36
x=36-3=33
Help me with this please
Answer: (-6,2)
-8 + (-4) / 2 = -6
-6 + 10 / 2 = 2
Answer:
M = (-6,2)
Step-by-step explanation:
To find a midpoint, you add the x-coordinates and divide by 2 to get the new x coordinate and then add the y-coordinates and divide by 2 to get the new y-coordinate.
(-8 + -4) /2 = x of M
(-6 + 10)/2 = y of M
M = (-6, 2)
can someone solve this for me? Its Solving the following system of equations using substitution.
Y = 6X + 5
Y=5X -9
Answer:
X = -14, Y = -79
Step-by-step explanation:
The two equations both equal Y, a constant, so they can be set to each other.
6X + 5 = 5X - 9X = -14Find y by plugging -14 into X in either of the equations.
Y = 5(-14) - 9Y = -79Side note: capitalized variables are generally unpreferred, hope your teacher stops using them! ;)
how do I determine the lower quartile and the upper quartile
Step-by-step explanation:
the lower quartile is the value of the middle of the first set of numbers, the upper quartile is the middle of the second set.
for example: 2 2 5 (7 )2 0 9
the seven is the median.
upper quartile would be the zero.
and lower quartile would be the second two.
hope this helps!
Question 3 of 7
A circular garden has a diameter of 10 yards. What is the area of the garden?
Use 3.14 for T.
Answer:
78.5 yards
Step-by-step explanation:
Essentially, to find the area of a circle simply use the equation pi r^2 (r=radius, or half of diameter). They also make it really easy by saying we may use 3.14 for pi, so really, we simply have to solve:
(3.14)5^2=78.5 yards
Hope this helps!
Can someone plz help me with this one problem plz!!!
(I Will Mark Brainliest)!!!!
Answer:
(0, -8) and (8, -6) are two points on the graph.
Step-by-step explanation:
jackson is making lemonade for a class party. he uses 3 tablespoons of lemonade mix for each 6 ounces of water. he wants to make four quarts of water. how much lemonade mix does jackson need?