Answers
Answer:
44
Step-by-step explanation:
All angles on a triangle add up to 180 degrees so 180-(65+71) will give you 44
Related Questions
What is the value of x in the equation below?
X + ¼ = - ⅝
Answers
Answer:
Step-by-step explanation:
Subtract 1/4 from both sides. (Change 1/4 to 2/8 so that it can be subtracted from 5/8)
X+ 1/4 = -5/8
X = -5/8 - 2/8
X= -7/8
If a = 8 while b = 6, find a when b = 12. (a varies inversely with b)
Answers
Answer:
a will equal 16
Step-by-step explanation:
A file folder box is in the shape of a rectangle prism with a length of 12 inches, a width of 9 inches, and a height of 10 inches. It is open at the top. Find the surface area of the file folder box
Answers
Answer:
Step-by-step explanation:
A=2(10)12+2(10)9+9(12)
A=240+180+108
A=528 in^2
Which expression is equivalent to 36+18
A: 3(12+6)
B:6(6+18)
C:3(33+6)
D:6(6+2)
Answers
3(12 + 6) gives you 36 + 18 because 3 times 12 is 36 and 3 times 6 is 18
Answer:
It A the is right
Step-by-step explanation:
A number line going from 12 to 20. An open circle is at 17. Everything to the right of the circle is shaded. Which inequality does the graph represent? x > 17 x <17 x Less-than-or-equal-to 17 x Greater-than-or-equal-to 17
Answers
Answer:
x > 17
Step-by-step explanation:
x > 17
The open circle means that it is not equal to 17. The shaded area to the right represents that it can be larger than or greater than 17.
Answer:
x > 17 your welcome
Step-by-step explanation:
i don't know i just know it
Find the missing angle.
Answers
pls help me with this question
Answers
Answer:
Step-by-step explanation:
3x and 8x
4a − 3 = 9 + a..........................
Answers
Answer:
[tex]4a - 3 = 9 + a \\ 4a - a = 9 + 3 \\ 3a = 12 \\ a = \frac{ 12}{3} \\ a = 4[/tex]
I hope this help
please help
"A power line must be laid to connect two towns, A and B. They are situated on opposite sides of a broad river that is 1 kilometre wide.
Town B is 5 kilometres down the river from a point C, directly across the river from town A, as shown on the diagram ATTACHED.
The cost of installing the power line is estimated at $20 000 per kilometre under water and $10 000 per kilometre on dry land. The proposed budget to install the lines is $64 000."
Where should the powerlines meet the bank of the river to have the lowest cost??
Answers
Answer:
hope this helps
Step-by-step explanation:
When a small group of farmers in eastern China looked at their watermelon fields one spring morning in 2011, they had quite a shock. The fields were not full of a bumper crop like that shown in this picture. Instead, the fields were full of shattered watermelons. The melons looked like they had been blown apart.
A row of watermelons in a field.
Field of ripe watermelons
The problem was limited to about 45 acres (18 hectare) of melons near Danyang. Experts concluded a chemical called forchlorfenuron was at fault. This chemical makes fruits and vegetables grow faster and larger than normal. In fact, they can grow 20 percent bigger!
China’s Watermelon Crop
China grows more watermelons than any other country. All parts of the watermelon are used in traditional Chinese medicine. Farmers see benefits in increasing the size of each melon. Bigger melons bring bigger profits. Melons that grow faster also get to market more quickly. As a result, several farmers had treated their watermelon crop. But the melons grew much faster than anyone expected—in fact, so fast that they burst apart.
Scientists who studied the situation stated that several important things went wrong. First, the type of watermelon these farmers grow is fairly thin-skinned. Under the best conditions, it would be more likely than other types of melon to split. Adding the growth stimulant made that result even more likely.
Watermelons are also more likely to split when the amount of water they receive fluctuates. Watermelons are 92 percent water. During drier weather, their skin tightens. If a heavy rain follows, the plant must absorb a lot of water very fast. The result is cracking. In this case, farmers applied the chemical before a period of heavy rain. The pressure from the water plus the growth stimulant caused the melons to burst.
Chemical Use—Good and Bad
Farmers use many chemicals on crops. That is especially true in a country like China where many people make a living as farmers, and where agriculture is an important part of the economy. The chemical used on the watermelons was a growth stimulant. It makes each acre more productive. Farmers also use pesticides. These chemicals kill pests such as insects or rodents that destroy crops. They use other chemicals to control weeds or kill organisms that spread disease.
Much of China’s farmland has been used for a long time. Fertilizers are needed to add nutrients to soil that years of use have pulled out. China’s farmers also raise livestock and poultry under conditions where many animals are crowded together. Antibiotics are widely used to control the spread of disease.
The goal of heavy chemical use is to boost farm productivity. In fact, China is the world’s largest user of agricultural chemicals. It uses 30 percent of the world total on just 9 percent of the world’s farmland. They do help China produce more food. But chemicals can also cause problems—and not just exploding watermelons.
Some chemicals can be harmful to people or the environment. Most of China’s farms are small—fewer than 5 acres (2 hectares). Studies show that small farms are more likely to use chemicals inefficiently. They may use them in way that can be harmful to the environment. Small farms are also less likely to use innovations in technology that reduce the need for chemicals.
Still, China knows the harm these chemicals are doing to the land. It has set a goal of no further growth in the use of these chemicals by 2020. That means farmers will have to cut back on the chemicals they spray onto their crops. And that should also mean no more exploding watermelons.
Solve the equation 2 = -6 – 20x for x.
Answers
Answer:
x = - 2/5
Step-by-step explanation:
1.) add six on both sides, the six on the right will cancel out
2.) divide both sides by -20
3.) this will cancel the -20 on the right out which will give your answer for x on the left side
therefore, x should equal - 2 / 5 once simplified
Please help me haha:)
Answers
Answer:
I think it is 117 because 27 plus 66=93 so v+t is 90 plus 27 so 117
Step-by-step explanation:
40+40×0+1
a) 1
b)41
c)82
??
Answers
Answer:
the law of bodmas multiplication first so
40+(40*0)+1
40+1
41
What is the answer for the wuesy
Answers
Answer:
22
Step-by-step explanation:
6 divided 6 equals 1 and 1 times 22 equals 22
Brainliest ?
FOURTY POINTS please help with linear
Answers
Answer:
y=x is the equation also represents that relationship.
Answer:
[tex]y=x^{2}[/tex]
Step-by-step explanation:
This is a quadratic function. 2x2=4, (-2)x(-2)=4, (-1)x(-1)=1, and 1x1=1. So, the function represented by the graph is y=[tex]x^{2}[/tex]
Triangle ABC is a right-
angled triangle.
ADB is a straight line.
DA = DC
Angle BCD = 20°
Work out the size of the angle
marked x.
You must give reasons for each
stage of your working out
Answers
Answer:
x=35°
Step-by-step explanation:
∠A+∠B+∠C=180°(ASP)
In ΔCAD, DC=DA
so, ∠DAC=∠DCA( angles opposite to equal sides are equal)
∠B=90°(given)
So, ∠DCA= 180°-(90+20)= 70°
Since ∠DCA= ∠DAC,
2x= 70°
x=35°
The value of angle A or the value of x is 35°
What is the triangle?Triangle is a shape made of three sides in a two-dimensional plane. the sum of the three angles is 180 degrees.
The angle A will be calculated as:-
∠A+∠B+∠C=180°(ASP)
In ΔCAD, DC=DA
so, ∠DAC=∠DCA( angles opposite to equal sides are equal)
∠B=90°(given)
So, ∠DCA= 180°-(90+20)= 70°
Since ∠DCA= ∠DAC,
2x= 70°
x=35°
Therefore the value of angle A or the value of x is 35°
To know more about triangles follow
https://brainly.com/question/17335144
#SPJ2
What is the value of x?
3
6
8
4
Answers
I believe x=4
and the y=3
Answer:
x = 4
y = 3
Step-by-step explanation:
2 × 4 = 8
8 + 10 = 18
2 × 3 = 6
6 + 4 = 10
25. Write the elements of the given set A A= { x|x is a square number less than 5}
1) 2
2) 4
3) 1
Answers
Answer:
A = (1, 4)
Step-by-step explanation:
Given :
Square numbers include : 1², 2², 3², 4²,...
x|x square numbers less than 5
1² = 1
2² = 4
3² = 9 (not applicable)
Square numbers less than 5 are ; 1, 4
Hence,
Set A = (1, 4) where, x|x square numbers less than 5
A = (1, 4)
i don't get Benchmark question #4
Answers
Answer:
C
Step-by-step explanation:
4 quartz per gallon
4 x 22 = 88 Containers
Answer:
c
Step-by-step explanation:
Sarah hired a painter to paint her bedroom walls and ceiling. Each of the four bedroom walls is 18 ft. Long and 8 ft. High. Two walls each have one door, and both doors measure 3 ft. By 7 ft. One wall has a window that is 3 ft. By 5 ft. The doors and window do not have to be painted. A gallon of paint can cover 300 ft.2. A hired painter claims that he will need three gallons to paint the one room. Is the estimate correct?
Answers
Answer:
The estimate is not correct?
Step-by-step explanation:
Given data
Area of wall = 18*8
=144ft^2
=4*144
=576ft^2
Area of doors
=3*7
=21ft^2
=2*21
=42ft^2
Area of window
=3*5
=15ft^2
Hence the total surface area of the room
=576-42-15
=519ft^2
The amount of paint needed= 519/300= 1.73
Approximately 2 gallons
We are told that 1 gallon will cover 300ft^2
Hence 3 gallons will cover 300*3= 900ft^2
Therefore the painter overestimated the amount of paint needed
As 2 gallons will do the job
The figure below consists of a square and a right triangle. Find the missing length x.
34 cm
16 cm
Х
Answers
Answer:
x = 130
Step-by-step explanation:
iA square has 4 equal sides, so the one side connected to the triangle is also 16cm. Triangle's 4 sided added together is 180.
180 = x + 32 + 16
180 = x + 50
180 - 50 = x
x = 130
Which rational number is NOT greater than point A?
Answers
Step-by-step explanation:
) Every positive rational number is greater than 0.
(ii) Every negative rational number is less than 0.
(iii) Every positive rational number is greater than every negative rational number.
(iv) Every rational number represented by a point on the number line is greater than every rational number represented by points on its left.
(v) Every rational number represented by a point on the number line is less than every rational number represented by paints on its right
. CDEF is a trapezium
. ABCF is a rectangle
. BD = 9cm
. AB = 6cm
. EF = 3cm
. perimeter of ABCF = 20cm
Answers
9514 1404 393
Answer:
24 cm²
Step-by-step explanation:
To find the area of the trapezium, we must know the length CD. That means we must know the length BC. Fortunately, the perimeter of ABCF is given, so we have ...
P = 2(AB +BC)
BC = (P/2) -AB = (20 cm)/2 - 6 cm = 4 cm
Then CD is ...
CD = BD -BC = 9 cm -4 cm = 5 cm
The area of the trapezium is given by the formula ...
A = (1/2)(b1 +b2)h
A = (1/2)(5 cm + 3 cm)(6 cm) = 24 cm²
The area of trapezium CDEF is 24 cm².
Help me please
Which of the following best describes π?
A. The ratio of the radius of a circle to its diameter
B. The ratio of the circumference of a circle to its radius
C. The ration of the circumference of a circle to its diameter
D. The ratio of the diameter of a circle to its radius
Answers
Answer:
Step-by-step explanation:
The ratio of the circumference to its diameter.
the proportion can be written this way
Circumference / diameter = pi / 1
3/4 divided by 1/3 plz I need it
Answers
Answer:
0.25
Step-by-step explanation:
The letters for the word SCHOOL are placed in a hat. What is the probability of drawing the letter o out of the hat?
Answers
Answer: 2/6 or 1/3
Step-by-step explanation:
SCHOOL has 6 letters in it and two O's. Therefore, it would be 2/6 or simplified it would be 1/3.
That was FUN!
12
Jack burned 150 calories on the elliptical and
210 calories on the treadmill. What is the ratio
of calories burned on the elliptical to calories
burned on the treadmill? Write the ratio on
simplest form.
please help !!
Answers
Answer:
5:7
Step-by-step explanation:
150:210
50:70
5:7
(Ratio has been simplified)
What would be the first step in simplifying the expression 27 ÷ (4 + 5)⋅6?
Select one:
A. Divide the 27 by the 4.
B. Multiply the 5 and the 6.
C. Add the 4 and the 5.
D. Divide the 27 by the 6.
Answers
Answer:
Step-by-step explanation:
Lebo buys blank writable CDs in bulk. He repackages them and sells them
Individually. He pays R40,00 cash (including VAT) for 50 CDs. He receives a 5%
discount. For how much must he sell each CD to make a 40% profit?
5. Musa buys a new radio for R125,00 excluding VAT. He pays cash and gets a 5
cash discount. How much will he pay in total including VATS
15%100 x 5,00
Answers
Answer:
He must sell each CD for R1,10 to make 40% profitStep-by-step explanation:
R40×5%=2
R40-2=R38
40%×38=R15,2
15,2+40=55,2
55,2÷50=R1,10
i didnt do the radio sum...
James ran 3 kilometers after school. How many meters did James run?
Answers
Answer:
3000meters
Step-by-step explanation:
3×1000= 3000
Answer: 3000 Meters
Step-by-step explanation:
There are 1000 meters in a kilometer.
Multiply that by 3 and get 3000
hiii help pls! tysmmm!