solve the equation 4x-2(x+3)=8
Answer:
4x-2x-6=8
2x-6=8
2x=8+6
2x=14
x= 14/2
x= 7
Answer:
X=7
Step-by-step explanation:
4x-2(x+3)=8
4x-2x-6=8
2x=8+6
2x=14
X=7
A triangle has sides that measure 5 units, 7 units, and 8 units. Is this a right triangle
will mark brainliest asap.
answer choices
Yes, it is a right triangle because 72 + 52 = 82.
No, it is not a right triangle because 72 + 52
≠
82.
Yes, it is a right triangle because 72 + 52
≠
82.
No, it is not a right triangle because 72 + 52 = 82.
Answer:
Step-by-step explanation:
O=0O
KO[K]
8/6+(-9/5) . . . . . . . .. .. . .. . . . .. . .. .
Answer:
To add fractions, find the LCD and then combine.
Exact Form:
-7/15
Decimal Form:
−0.46
Recall that you algebraically find the intersection point of two lines by setting their equations equal to each other and solving for the x-coordinate of intersection. Then substitute to find the y-coordinate. Algebraically determine the intersection point of y = 6x-27 with y = 2x – 7.
Answer:
[tex]x = 5[/tex]; [tex]y = 3[/tex]
Step-by-step explanation:
Given
[tex]y = 6x - 27[/tex]
[tex]y = 2x - 7[/tex]
Required
Determine the point of intersection
We simply equate both equations; i.e.
[tex]y = y[/tex]
or
[tex]6x - 27 = 2x - 7[/tex]
Collect Like Terms
[tex]6x - 2x = 27 - 7[/tex]
[tex]4x = 20[/tex]
Solve for x
[tex]x = 20/4[/tex]
[tex]x = 5[/tex]
Substitute 5 for x in [tex]y = 2x - 7[/tex]
[tex]y = 2 * 5 - 7[/tex]
[tex]y = 10- 7[/tex]
[tex]y = 3[/tex]
Hence, the point of intersection is:
[tex]x = 5[/tex]; [tex]y = 3[/tex]
A submarine is -18 feet below the surface of the ocean. The submarine then dove to a depth of -50 feet below the surface of the ocean. What was the change in depth?
Answer:
-32ft
Step-by-step explanation:
Given parameters:
Original depth of the submarine = -18ft
New depth = -50ft
Unknown:
Change in depth = ?
Solution:
The change in depth will be the difference in depth between the new and original depth.
Change in depth = New depth - original depth
Change in depth = -50ft - (-18ft) = -32ft
The change in depth of the submarine is -32ft.
Find the critical value z Subscript alpha/2 that corresponds to the given confidence level. 99?% z Subscript alpha/2 = nothing?
Answer:
2.576
Step-by-step explanation:
Given :
Confidence level (α) = 99%
Z(1 - α)/2 = Z(1 - 99%)/2
Z1%/2 = Z1%/ 2
Z0.5% = Z0.005
Z(0.99 + 0.005) = Z0.995
Using the Z distribution table ; locate the z value for the proportion 0.995 ; this corresponds to approximately 2.57
Similarly, using the Invnorm calculator function :
Invnorm(0.995) gives a Zscore of :
2.576
A rectangular poster is 50 cm long and 25 cm wide. If 1 cm is approximately .4 inches What is the perimeter of the poster
8.
Say that you (or your parents) are purchasing a house for $235,000 and have an excellent credit score. If you pay $1,678.93 at the end of
the first month, how much is applied to the principal balance?
Credit
Excellent
Good
Average
Fair
Poor
Secured
APR (%)
4.75
5.00
5.85
6.40
7.50
Unsecured
APR (%)
5.50
5.90
6.75
7.25
8.40
$616.29
$685.25
$748.72
$721.19
Answer:
The correct answer is 748.72
Step-by-step explanation:
$748.72 is applied to the principal balance if you pay $1,678.93 at the end of the first month.
What is principal amount?The loan amount that the lender gave to the borrower is referred to as the primary amount. Also, it is the factor the lender uses to calculate interest.
Please be aware that the amount you pay toward your loan's principal is without the interest that is charged on that amount. Your lender determines how much interest customers will pay over a specific length of time based on the amount still owing. The principle amount is simply the amount you owe their lender before interest.
principal amount = 4.75% of $1,678.93
= 4.75% × $1,678.93
= $748.72
Therefore, $748.72 is applied to the principal balance if you pay $1,678.93 at the end of the first month.
To know more about principal amount, here:
https://brainly.com/question/27335786
#SPJ5
A car dealership sold 120 cars in April. The dealership wants to increase the number of cars sold by 15% in May. How many cars will the dealership need to sell to reach their goal?
Answer:
138
Step-by-step explanation:
120+15%=138
Answer:
138
Step-by-step explanation:
Help Me on this palzz
Answer:
That should be 11.99+35.50+6.75+3+ 7.15% of EACH of those items added together minus 11.99+35.50+6.75+3+ 6.35% of EACH of the same items added together
please help me out -4x – 6 – 2x –3
¿ cuáles son los adjetivos? y ¿ cuáles son los adjetivos ? por favor es para hoy
Answer:
1) maldava y despota
2) pequenos
Step-by-step explanation:
which represents an even function?
y=cos(x)
I think the one that represents a even function is cos(x)
Answer:
The cosine is an even function which means that if (x,y) is on the graph of the function so too is the point (-x,y). Since y corresponds to cos(x) then this means that cos(-x) = cos(x).
Step-by-step explanation:
Hope this helps
Quiz 2: percent and percentage
solve: 24% of 80=
A. 19.2
B. 38.4
C. 192
D. 384
Answer:
Answer: 19.2
Step-by-step explanation:
To calculate percentage, multiply the number 80 by 0.24, and the answer is 19.2.
For each linear function graphed on the coordinate grid, enter the value of m and the value of b. Give your answers as fractions in simplest form. 8 6 5 183 4 3 2 1 3 -3 - 3 -10 -98 lo S 910 f(x), red line: g(x), blue line: m= h(x), green line: m = Check Answer Next Question Question 6 of 8 POWER ? XKNEWTON ! Turn it in Save & Close O E e
Answer:
f(x), Red Line: m = -½; b = 2
g(x), Blue Line: m = ⅓; b = -1
h(x), Green Line: m = 3; b = 0
Step-by-sep explanation:
✍️Note the following:
✔️The slope of a line, m, = [tex] \frac{rise}{run} = \frac{y_2 - y_1}{x_2 - x_1} [/tex]
✔️y-intercept, b, = the point on the y-axis where the line intercepts the y-axis, and where x = 0.
f(x), Red Line:
Using 2 points on the red line, (6, -1) and (8, -2)
slope (m) = [tex] \frac{y_2 - y_1}{x_2 - x_1} = \frac{-2 -(-1)}{8 - 6} = \frac{-1}{2} [/tex]
m = -½
The red line intercepts the y-axis at y = 2, therefore:
b = 2
g(x), Blue Line:
Using 2 points on the blue line, (0, -1) and (3, 0)
slope (m) = [tex] \frac{y_2 - y_1}{x_2 - x_1} = \frac{0 -(-1)}{3 - 0} = \frac{1}{3} [/tex]
m = ⅓
The blue line intercepts the y-axis at y = -1, therefore:
b = -1
h(x), Green Line:
Using 2 points on the green line, (0, 0) and (1, 3)
slope (m) = [tex] \frac{y_2 - y_1}{x_2 - x_1} = \frac{3 - 0}{1 - 0} = \frac{3}{1} = 3 [/tex]
m = 3
The green line intercepts the y-axis at y = 0, therefore:
b = 0.
A circular fountain has 132 feet of railing around it. What is the area of the fountain to the nearest square foot? Use 3.14 for π. *
Answer:
139
Step-by-step explanation:
First we need to find diameter 132/3.14=42 rounded
Then we halve it to find radius 42/2=21
Formula for area is radius x radius x 3.14
21 x 21 = 441 x 3.14 = 138.74 round up is 139
Answer:
18.8 feet, 59.1 feet to the nearest tenth
Step-by-step explanation:
The diameter is the line drawn that divides the circle into two while the circumference is the perimeter of the circle. Both are a measure of the radius of the circle.
The diameter D = 2r where r is the radius of the circle
The circumference = 2Πr = ΠD where Π = 22/7
Given that the circular fountain has a radius of 9.4 feet
Its diameter = 2 × 9.4 feet = 18.8 feet
The circumference = 22/7 × 18.8 feet
=59.09 feet
≈ 59.1 feet to the nearest tenth
evaluate log2/3 (4/9)
Answer:
2
Step-by-step explanation:
A cake was cut into 12 equal pieces. Someone ate part of the cake so that 3/4 of the cake remains. How many 1/12 pieces are left?
Answer:
Nine pieces
Step-by-step explanation:
If you multiply the 3/4 pieces until the denominator is equal to twelve the numerator would be nine
Which expression uses the commutative property to make it easier to evaluate 3/5·1/4·25
A.25·4·3/5
B.5/3·25·1/4
C.3\5·25·1\4
D.3/5·1/25·1/4
Answer:
C
Step-by-step explanation:
The expression that uses the commutative property is 3/5 × 25 × 1/4
What is the commutative property?The commutative property is a math rule that says that the order in which we multiply numbers does not change the product.
Given is an expression 3/5 × 1/4 × 25
We know that,
The commutative property of multiplication states that:
A × B × C = B × C × A
Using the above equation, we have the result of the commutative property to be:
3/5 × 1/4 × 25 = 3/5 × 25 × 1/4
Hence, the expression that uses the commutative property is 3/5 × 25 × 1/4
Read more about commutative property at
brainly.com/question/28094056
#SPJ5
Find the value of P for which the inflows will equal the outflows. Find the effective rate first.
Rate 8% p y c d
Year Outflows Inflows
0 -P
1 -2P
2 -4P
3 -8P
4 -16P
5 $24,000
6 $30,000
7 $36,000
8 $42,000
9 $48,000
10 $54,000
Answer:
The answer is "p= $5,246".
Step-by-step explanation:
Using formula:
Present value of [tex]\frac{in-flow}{out-flow}[/tex] = cash-flow [tex]\times[/tex] present value of discounting factor(rate %, time period)
[tex]\to -p-\frac{2p}{1.08}-\frac{4p}{1.08^2}- \frac{8p}{1.08^3}-\frac{16p}{1.08^4} =\frac{24000}{1.08^5}+ \frac{30000}{1.08^6}+ \frac{36000}{1.08^7} + \frac{42000}{1.08^8}+ \frac{48000}{1.08^9}+ \frac{24000}{1.08^{10}}\\\\[/tex]
[tex]\to -p[1+\frac{2}{1.08}+\frac{4}{1.08^2}+ \frac{8}{1.08^3}+\frac{16}{1.08^4}] = 127960.43169\\\\\to -p[24.3923427] = 127960.43169\\\\\to -p = \frac{127960.43169}{24.3923427}\\\\\to p= 5245.93\\\\\to p= 5246[/tex]
Candice scored 74 on an exam that had a mean of 66 and a standard deviation of 4. Erin scored 58 on an exam with a mean of 42 and a standard deviation of 7. Who scored better?
Answer:
Erin
Step-by-step explanation:
Z score formula:
z = (x-μ)/σ, where x is the raw score, μ is the population mean, and σ is the population standard deviation.
For Candice:
Z score = 74 -66/4
Z score = 2
For Erin
Z score = 58 - 42/7
Z score = 2.28571
Erin z score is larger hence, he did better
Please answer the 3 questions on the bottom to help me out (8TH GRADE MATH?!)
Answer:
a
c
b
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
The beginning balance in a person's savings account was 3900 dollars. After making a withdrawal of 300 dollars but earning interest of 14 dollars, what was the new balance in the account?
Balance: _____ Dollars
Answer:
The answer is 3,614. If you have 3900 dollars and withdraw ( take away) 300 you subtract, and you EARN 14, so you add.
Step-by-step explanation:
The reasoning is in the calculator picture attached
Ed spoke to his cousin in Australia, who told him it was 28°C that day Ed wasn't sure if that was hot or cold, so he
converted the temperature to degrees Fahrenheit. What is the temperature in degrees Fahrenheit?
Use the formula, F-C+32, where F is the number of degrees in Fahrenheit and C is the number of degrees in
Celsius. Round your answer to the nearest whole number
48°F
50°F
82°F
1080F
Hey
Answer:
82
Step-by-step explanation:
hope this helps you man
Answer:
82
Step-by-step explanation:
15.4: Ordering Percentages of Different Numbers Order from least to greatest: 65% of 80 36% of 125 82% of 50 170% of 30
Answer:
82% of 50 (41) 36% of 125 (45) 170% of 30 (51) 65% of 80 (52)
Step-by-step explanation:
BRAINLIEST PLS
What quadrant is the
ordered pair (2,-3) in?
Answer:
quadrant 4
Step-by-step explanation:
Lo ran 6 ¼ miles Thelma ran 1 2/3 miles.
How many times further did Lo run than Thelma?
Answer: 7 1/2 miles mire
Step-by-step explanation:
please help! i need this answer i just cant figure it out
I think it's b. Not completely sure though. I hope you get it right though. If i happen to be right i would love to be picked brainliest.
Solve and explain the steps you would use in solving 2 step problems
PLEASE HELP ASAP
Answer:
got deleted eh?
Step-by-step explanation:
Emilie rides her bike x miles before she gets a flat tire. She walks 1/3 mile to a bus stop and then takes a bus for 2 1/2 miles. Which expression shows how many miles Emilie travels in all?
Answer there is no choice, but it is x+1/3+2 1/2.
Step-by-step explanation:
Answer:
The answer is x + 2 5/6.
Step-by-step explanation:
Emilie rides her bike x miles before it gets a flat tire.
She walks 1/3 mile to a bus stop and then goes another 2 1/2 miles or 5/2 miles on a bus.
The equation would be:
x + 1/3 + 2 1/2
But, since that isn't an option, we have to simplify the equation.
x + 1/3 + 5/2
= x + [tex]\frac{2+15}{6}[/tex]
= x + 17/6
= x + 2 5/6
Thus, the answer is x + 2 5/6.