Answer:
-3
Step-by-step explanation:
3x+(2-4x)
3*5+(2-4*5)
3*5+(2-20)
3*5+(-18)
3*5-18
15-18
-3
Evaluate the following expression, when x=-2
2x^2+4x-3
A) 3
B) 3
C) -19
D) 9
Answer:
-3
explanation;..!!^=^Answer:
Sana makatulog po Ito sa inyo.
The length of a rectangle is 9” greater than the width. The area is 36”2. Find the dimensions
Answer:
Step-by-step explanation:
L = W+9
area = LW = 36
(W+9)W = 36
W²+9W-36 = 0
W = -12, 3
-12 is an extraneous solution, so W = 3 inches
L = W+9 = 12 inches
write 0.0000002711 in scientific notation
Answer:
2.711e-7
Step-by-step explanation:
pleaseeeeeeeeeeeeeeeeeeeeeeeeeeee
Answer: A, scale factor is 3
Step-by-step explanation:
Blank divided by 2 = 1/10 ? What is divided by 2 that's give the answer 1/10 ?
Answer:
2/20
Step-by-step explanation:
x/2 = 1/10
multiply both sides by 2
x = 2/20
Q1_Write an equation of the line satisfying the given conditions. Write the answer in slop-intercept form.
The line passes through the point (2,13) and has a slope of 4.
Q2_ For over 20 years, the population of Tressel, Ohio has been increasing linearly according to the function
p(t) = 225t+7,000
where P is the number of residents, and t is years after 1980 . Compute p(0) and interpret its meaning in the context of this problem.
Q3_Use the point-slope formula to write an equation of the line through the points (0,-3) and (11,4).
Q4_Match the description with the correct symbolic expression.
a line with a negative slope
f(x) = 2x -4
2x + 9y = -5
x = -4
y = -5
Thank you for the help --from 50 points
Answer:
7225 LOL
Step-by-step explanation:
Expand this expression
by using the distributive
property:
4(2y - 8)
Answer:
8y-32
Step-by-step explanation:
4x2y=8y
-8x4=-32
I would appreciate it please I need help
Answer:
B. n + 9
Step-by-step explanation:
Given:
n² + 3n - 54
Let's factorize
n² + 9n - 6n - 54
n(n + 9) -6(n + 9)
(n - 6)(n + 9)
Therefore, out if the options given, n + 9 is the expression of the factor of n² + 3n - 54.
What is the value of x in the equation -2/9x2/5 ?
A. -1 4/5
B. -5/9
C. 5/9
D. 1 4/5
Answer:
-1 4/5
Step-by-step explanation:
-2/9x = 2/5
(multiply both equations by 9 and 5)
So
-10x = 18
(divide both equations by -10)
x = - 18/10
Simplify:
x= - 9/5
= - 1 4/5
Marley solve 345 -176 and then checked her work which pair of number sentences did she u
Answer:
Could you finish the question???
Step-by-step explanation:
I need help with both of these plss
Answer:
3. All you did was switch the numbers, so it will still equal the same :)
4. 8a and the other 8a cancel each other out, so since 8 has no variables, it ends up by itself.
A mistake was made in the steps shown to simplify the expression. Which step includes the mistake?
9/2+ 3(4 – 1) – 7 + 23
Step 1: = 9/2+ 3(3) — 7 + 23
Step 2: = 9/2 + 3(3) - 7 + 8
Step 3: =15/2 (3) — 7+8
Step 4: =45/2 - 7+8
Step 5: =31/2 +8
Step 6: =47/2
Answer: step 3 maybe?
Step-by-step explanation:
What is the slope of a line that passes through the points. (-2, 3) and (4, -12)?
-3/2
-2/5
-5/2
-9/2
Answer:
5/2
Step-by-step explanation:
5/2
please help!!!!!! i will also give
Answer:
22. 108 cm²
23. 100 cm²
Step-by-step explanation:
The area of a trapazoid is:
A = (a+b)/2 (h)
input the values:
22. (6+12)/2 (6)
23. (7+18)/2 (4)
Hope this helped :)
a train travels 16 miles in 20 minutes how many minutes would 12 miles be
Answer:Then 16x = 240, and x = 240/16 = 15. It will take 15 minutes to travel 12 miles.
Step-by-step explanation:
16 miles = 12 miles
20 mins. how many mins?
16 = 12 cross multiply 16? = 240 divide by 16 240 divided by 16 = 15 miles
20 ? because 15 x 16 = 240
Answer:
It will take 15 minutes to travel 12 miles.
Step-by-step explanation:
Write and solve an equation of ratios:
16 miles 20 min
----------- = -----------
12 miles x
Then 16x = 240, and x = 240/16 = 15.
The sum of eight and a number, x, is four.
Answer:
-4
Step-by-step explanation:
If segment DE is 12, what is segment BC?
Answer:
A) 24
Step-by-step explanation:
(a) Approximate the population mean and standard deviation of age for males. U= (Round to two decimal places as needed.)
Answer:
70,79
Step-by-step explanation:
jwhsbsvevshwksksnbs
What is the difference of
7
8
−
1
3
?
A.
7
+
1
8
+
3
=
8
11
B.
7
−
1
8
−
3
=
6
5
C.
7
×
1
8
×
3
=
7
24
D.
(
7
8
×
3
3
)
−
(
1
3
×
8
8
)
=
21
24
−
8
24
=
13
24
Answer:65,
Step-by-step explanation:
How do you convert 4/20 into a decimal
Answer:
Inieterlov
Step-by-step explanation:
Si un electrón no consume, ni libera energía el átomo se encuentra enSi un electrón no consume, ni libera energía el átomo se encuentra en
Answer:
0.2
Step-by-step explanation:
Divide the numerator by the denominator
Choose 3 values that would make this inequality true. 7n ≤ 21
Answer:
A couple could be 2, 1, or even a decimal 1.3 as an example.
Step-by-step explanation:
Divide both sides by 7:
7n/7 < 21/7
n < 3
Any value of n less than 3 will make the inequality true, so just pick three values (numbers) for n that are less than 3, such as n = 2.
Al mediodía en una ciudad se registra una temperatura de 13°C bajo
cero. Si al anochecer se produce un descenso en la temperatura de 70C.
Cual es la temperatura al final del dia?
Answer
:La temperatura al final del día es de -57 grados centígrados.
espero que esto ayude
por cierto, espero que tengas un día increíble
Step-by-step explanation:
Answer:
-57
Step-by-step explanation:
+2($$?$!(-(&jeksljdjdkdnd
Identify in the given expressions, terms which are not constants. Give their numerical coefficients.
(i) 5x – 3
(ii) 11 – 2y2
(iii) 2x – 1
Given:
The expression are
(i) [tex]5x-3[/tex]
(ii) [tex]11-2y^2[/tex]
(iii) [tex]2x-1[/tex]
To find:
The terms which are not constants and their numerical coefficients.
Solution:
Constants: The terms which are free from variables.
Numerical coefficient: Number multiplied with a variable.
(i) [tex]5x-3[/tex]
Constant = -3
Term which is not constant = 5x
Numerical coefficient = 5
(ii) [tex]11-2y^2[/tex]
Constant = 11
Term which is not constant = [tex]-2y^2[/tex]
Numerical coefficient = -2
(iii) [tex]2x-1[/tex]
Constant = -1
Term which is not constant = 2x
Numerical coefficient = 2
Therefore, the terms which are not constants are [tex]5x,-2y^2,2x[/tex] respectively and their numerical coefficients are 5, -2, 2 respectively.
Lena has $7.00. She earns $10.50 for walking dogs. Then she spends $5.99 for a pair of earrings. How much money, in dollars, does Lena have left?
Answer:
11.51
7+10.55=17.55
17.55-5.99=11.51
Answer:
11.51
Step-by-step explanation:
7+10.55=17.55
17.55-5.99=11.51
pls mark brainliest
Rearrange tiles on the board to represent equivalent
expressions.
Which expressions are equivalent to 6 +(-x) + 2x + (-7)
+ 2x? Check all that apply.
Ox+ x + 6-7 + x
+
2x + 2 + x
O 3-X + 2x - 4 + 2x
-1-1-1-
DX-1
Ox+1
Board sum: 6 + (-x) + 2x + (-7) + 2x
Answer:
Its a and c
Step-by-step explanation:
Did it and got it right
The equivalent expression to 6 + (-x) + 2x + (-7) is x - 1
How to find equivalent expressionGiven expression
6 + (-x) + 2x + (-7)
= 6 - x + 2x - 7
= x - 1
Options
x + x + 6 - 7 + x= 3x - 1
2x + 2 + x= 3x + 2
3 - x + 2x - 4 + 2x= 3x - 1
x - 1True
x + 1Learn more about equivalent expression:
https://brainly.com/question/2972832
2. Write the equation –3x + 5y = 10 in slope-intercept form.
NEED HELP PLS
PLE PLS PKS
Answer:
4 busses
Step-by-step explanation:
20*5= 100
30+30+30=90
+ 30= 120
The geometric mean between 8 and 18.
a) 8
b) 12
c) 14
d) 16
Explanation:
The geometric mean of two positive numbers a and b is √ab. The ratio a:√ab is equal to the ratio √ab:b.
b
Glen needs to select the shortest length nail available to build a small bird house. Of the following for sizes available which one should he select: A) 1 3/5 inches B) 1 5/8 inches C) 1 2/3 inches D) 1 3/4 inches
Answer:
B) 1 7/8
Step-by-step explanation:
1. first, if you have 16/8 then it would be 2, but since it is 15/8 you need to minus 15 and 8
2. 15-8=7, now you only have 7
3. last, since you only have 7 then it is 1 whole and 7 8ths
4. 1 7/8 is your answer.
3. Find the value of 18 – 3 x 5 - 2. Guys please I need help!!
Answer:
1
Step-by-step explanation:
Remember PEMDAS:
P: we have no parenthesis, so skip this step.
E: no exponents either.
MD (multiplication and division): we have 3x5. when we calculate this, it is equal to 15. Therefore our equation is now simplified to 18-15-2.
AS (addition and subtraction): Subtract in order of first to last. The answer is 1.