Answer:
64
Step-by-step explanation:
x+y = 7
xy = 10
2x+2y+5xy = 2(x+y)+5(xy) = 2*7+5*10 = 14 + 50 = 64
find two numbers with a sum of
11 and a difference of 5.
Answer:
8 and 3
Step-by-step explanation:
Answer:
The numbers are 8 and 3
Step-by-step explanation:
Hope This Helps!
Review the table of values showing the number of
days each year from 1990 to 1997 that air quality in
San Diego did not meet federal air quality standards.
Answer: B
Step-by-step explanation: I got it right.
Answer:
GUYS THE PERSON ABOVE ME IS WRONG THE ANSWER IS NOT B IT IS C TRUST ME
Find the midpoint of the segment with the following endpoints.
(9,6) and (1, 2)
the diagram shows a circle inside a square 16cm work out the area of the circle
Answer:
12.57 or 4π
Step-by-step explanation:
Since the area of 16, the 2 sides must be 4 and 4
From that we can infer that the diameter is 4
Radius is 2
radius squared*pi
4*3.142
12.57
HELP ME PLS
if y varies inversely with x, and y = 15/2 when x = 4, find x when y = 15/4
help me pls ASAP I need it in 5mins
Answer:
74 cars
Step-by-step explanation:
14(2) + 4x = 324
28 + 4x = 324
4x = 296
x = 74
Solve and show your work please
Answer:
m = 21
Step-by-step explanation:
-5 = 2 - [tex]\frac{m}{3}[/tex]
Multiply both sides of the equation by 3.
-15 = 6 - m
Swap sides so that all variable terms are on the left hand side.
6 - m = -15
Subtract 6 from both sides.
-m = -15 - 6
Subtract 6 from −15 to get −21.
-m = -21
Multiply both sides by −1.
m = 21
Hope this helps you out =D
Of the 89 million tons of waste that was recycled 9 percent was metal.How much metal was recycled in million tons
9% of 89
[tex] \frac{9}{100} \times 89[/tex]
801/100
= 8.01
Find the measures of two supplementary angleš if the difference between the
measures of the two angies is 35º
Answer:
<1 = 107.5 degrees
<2 = 72.5 degrees
Step-by-step explanation:
<1 = x
<2 = x -35
x + x - 35 = 180
2x = 180+35
x = 215/2
x = 107.5
<1 = 107.5
<2 = 72.5
Which of following is the graph of y = -(x + 1)2 -3? o ty 2 ?? 덕 a -2 2 4 n DONE
Answer:
Neither of the graphs shown.
Step-by-step explanation:
Given the quadratic equation, y = - (x + 1)² - 3, where a = -1, and the vertex is the minimum value that occurs at point (-1, -3). It is easier to tell which graph corresponds to the given equation due to the coefficient, a. In quadratic fucntions, if a < 0, then it means that it is a downward-facing parabola. The value of a makes the parent function wider or narrower.
Also, the parabola is shifted 1 unit to the left, as defined by h = -1, and 3 units downward, defined by k = -3.
I'm not sure if there are other graphs as options. Since neither one of the graphs shown applies to the given quadratic equation, I'm including a screenshot of the correct graph for your reference, where it shows where the vertex is located, along with the y-intercept, (0, -4) -- just in case. Hopefully this helps.
A map of Pennsylvania has a scale of ¾ inch to 25 miles. If Pittsburgh and Philadelphia are 9 inches apart on the map, how many miles apart are the two cities?
Answer: 300
Step-by-step explanation:
0.75 inches : 25 miles
we can times 0.75 by 12 to get 9, we have to do the same thing on the other side.
9inches : 300 miles
I need some help on this
CAN ANYBODY HELP ME What is the 100th term in the sequence beginning with -45, -43, -41, -39, ...?
Group of answer choices
153
150
155
200
55
Answer:
153
Step-by-step explanation:
Since the given sequence is arithmetic because it has common difference.
-43-(-45) ,= -43+45 = 2
-41+43 = 2
-39+41 = 2
Therefore, the common difference is 2.
General Term
[tex] \displaystyle \large{a_n = a_1 + (n - 1)d}[/tex]
Since we want to find the 100th term, substitute n = 100.
We know common difference which is 2 and defined as 'd'; substitute d = 2
a1 means first term so:-
[tex] \displaystyle \large{a_{100}= - 45 + (100 - 1)2} \\ \displaystyle \large{a_{100}= - 45 + (99)2} \\ \displaystyle \large{a_{100}= - 45 + 198} \\ \displaystyle \large{a_{100}= 153}[/tex]
The length of the base of an isosceles triangle is x. The length of a leg is 3x-4. The perimeter of the triangle is 27 . Find x.
Answer:
x= 31/3
Step-by-step explanation:
please help!! using the pythagorean theorem !!
Answer:
≈8.66
Step-by-step explanation:
a²+b²=c²
5²+b²=10²
25+b²=100
25+b²-25=100-25
b²=75
b=√75
≈8.66
pls mark me as brainliest!
Answer:
8.66
Step-by-step explanation:
You're solving for b.
first, use the formula
c = a^2 +b^2
b = c^2 -a^2 = 10^2 - 5^2 = 8.66025
Don't forget that you have to square root it.
bubba's gym charges a $100 membership fee and $10 per visit.
write an expression that represents the cost of "x" visits: C=_______
Answer:
C=100+10x
Step-by-step explanation:
its 10$ per visit and x represents the number of visits. and you get a 1 time membership fee of 100 so its 100+10x=C c stand for cost.
plz help.this is a grade! DUE IN 10 MINUTES. he tape diagram below represents how much time you and your friend spend time studying. You study for 45 minutes how many minutes does your friend study
Answer:
both you and your friend study for 45mins
Step-by-step explanation:
The angle which is four times its complement is a. 60 b. 30 C. 45 d. 72
Answer:
The answer is D.72°
Step-by-step explanation:
hope this helps.
Six times the quantity, x-2, is 24. Find the number
Answer:
x = 6
Step-by-step explanation:
it states 6 times the quantity x - 2, so the expression would be 6 ( x - 2 ) = 24. first multiply because you cannot add or subtract unlike terms. so 6 multiplied by x and -2, the expression would be (6x - 12) = 24. add 12 to 12 so you cancel the coefficient. but when adding to the constant add to the sum. now it is 6x = 36. since 6x is multiplication, divide 6x by 6 to isolate the variable, but divide the answer, 36 divided by 6 is 6. therefore x = 6. hope this helps
Giving brainliest. (This question is for fun. 8th-grade Math Question)
Find the measure in degrees.
1) m∠PQR
2) m∠QPR
3) m∠PRQ
Answer:
haha get noobed hah jk 180 degrees
The product of x and 7 is at least 21
Need lotta help.What is 6 times 80?
Answer:
480
Step-by-step explanation:
share 40 pounds in the ratio 1:4 between tim and sam
Answer:
Add the ratio together: 1 + 4 = 5
Divide total by 5: 40/5 = 8
Multiply 8 by each portion of the ratio:
8 x 1 = 8
8 x 4 = 32
Time gets 8
Sam gets 32
the difference of twenty-one and eight times a number n is thiry-five
Answer:
n=7
Step-by-step explanation:
difference means subtraction so:
8n - 21= 35
8n=35+21
8n= 56
n= 56÷8
n=7
Determine the intercepts of the line
x intercept : ?,?
y intercept: ?,?
Answer:
x-intercept: 3 or (3,0)
y-intercept: -10 or (0,-10)
Step-by-step explanation:
1. The intercepts of a graph are points at which the graph intersects with the x - or y-axis.
2. Given the information above, the line intersects with the x-axis at (3,0) and the y-axis at (0,-10).
Therefore, the x-intercept is 3 or (3,0) and the y-intercept is -10 or (0,-10).
Which phrase matches the algebraic expression below?
2(x - 7) + 10
OTwo times the sum of x and seven plus ten
OTwo times the difference of x and seven plus ten
OTwo times x minus seven plus ten
OTwo times x minus the sum of seven and ten
Answer:
O Two times x minus seven plus ten
Cell Phone Towers
Towers
Assessment Practice
14. The table shows the number of cell phone towers a company will build
as the number of its customers increases.
PART A
is the relationship between number of towers and number of customers
proportional? Explain,
Customers
(thousands)
5.25
252
6.25
300
7.25
348
9.25
444
PART B
if there are 576 towers, how many customers does the company have?
Write a proportion you can use to solve.
1. The relationship between number of towers and number of customers is proportional.
2. When there are 576 towers, the number of customers that the company is 27648 customers.
How to calculate the value?From the information, the table shows the number of cell phone towers a company will build as the number of its customers increases.
When there are 5.25 towers, the customers are 252. This will be:.
= 252 / 5.25
= 48
Also, when it's 6.25, the customers are 300. This will be:
= 300/6.25
= 48
Therefore, there's a constant value of 48. This illustrates proportionality.
When there are 576 towers, the number of customers that the company have will be:
= 576 × 48
= 27648
Learn more about proportional relationship on:
brainly.com/question/20328591
#SPJ1
You are given that a 7.6.54 to 3 significant figures) and b = 123 (to 3 significant figures):
Calculate upper and lower bounds for a+b, give your answers to 3 significant figures:
[tex]\\ \sf\longmapsto a+b[/tex]
[tex]\\ \sf\longmapsto 123+76.5[/tex]
[tex]\\ \sf\longmapsto 199.5[/tex]
[tex]\\ \sf\longmapsto 199[/tex]
value of 3 to the power of -2
Answer:
it would be .1111111111
Hope this helps
Answer:
.1 repeating
Step-by-step explanation:
.1 repeating= .11111111111
Hope this helps.
A family has two cars. The first car has a fuel efficiency of 20 miles per gallon of gas and the second has a fuel efficiency of 40 miles per gallon of gas. During one particular week, the two cars went a combined total of 1700 miles, for a total gas consumption of 55 gallons. How many gallons were consumed by each of the two cars that week