Answer:
A
Step-by-step explanation:
Using Pythagoras' identity on the large right triangle.
The square on the hypotenuse is equal to the sum of the squares on the other 2 sides, that is
(x + 32)² = 30² + 40² = 900 + 1600 = 2500 ( take the square root of both sides)
x + 32 =[tex]\sqrt{2500}[/tex] = 50 ( subtract 32 from both sides )
x = 18 → A
Find the distance between the points (5, 2) and (1, -3). Round to the nearest tenth if necessary.
a. 3.0
b. 9.0
c. 5.2
d. 6.4
Answer:
d. 6.4
Step-by-step explanation:
d=√(1−5)2+(−3−2)2
d=√(−4)2+(−5)2
d=√16+25
d=√4–√1
d=6.403124
What is the value of x?
What is the measure of
per
(in meters)
3.23
3.18
3.22
3.19
Answer:
Can you please be more specific what do I convert it to.
Step-by-step explanation:
A robin can fly 10 miles per hour faster than a blue jay. It takes a robin 1 1/2 hours to fly 45 miles.
How many hours will it take a blue jay to fly that same distance?
Answer: [tex]2\dfrac14\text{ hours}[/tex]
Step-by-step explanation:
Given: It takes a robin [tex]1\dfrac12[/tex] hours to fly 45 miles.
[tex]1\dfrac12=\dfrac32[/tex]
Speed of robin= [tex]\dfrac{distance}{time}=\dfrac{45}{\dfrac32}[/tex]
[tex]\dfrac{45}{3}\times2= 15\times2= 30\text{ miles per hour}[/tex]
A robin can fly 10 miles per hour faster than a blue jay. It
Speed of Blue jay = Speed of robin - 10 miles per hour
= 30 miles per hour - 10 miles per hour
= 20 miles per hour
Time taken to cover 45 miles = [tex]\dfrac{45}{20}=\dfrac{9}{4}=2\dfrac14\text{ hours}[/tex]
Hence, it will take [tex]2\dfrac14\text{ hours}[/tex] by a blue jay to fly that same distance.
−6 2/1 −(−2 8/1 )+3 3/2
Answer:
simplify the expression.
Exact Form:
13/2
Decimal Form:
6.5
Mixed Number Form:
6 1/2
Step-by-step explanation:
plz give me brainlyest
Answer: 6 1/2
Step-by-step explanation:
-6 2/1 - (-2 8/1 ) + 3 3/2
-8 - (-10) + 4 1/2
-8 + 10 + 4 1/2
2 + 4 1/2
6 1/2
I didn't really understand some stuff but I think I did this right.. hope this helps!
Ms. Reynold's sprinkler system has 5 stations that water all parts of her front and back lawn. Each station runs for an equal amount of time. If it takes 16 minutes for the first 2 stations to water, how long does it take to water all parts of her lawn?
Answer: 40 minutes
Step-by-step explanation:
It takes 16 minutes for the first 2 stations to water their sections which means that the time taken per station is:
= 16/2
= 8 minutes per station
Ms. Reynolds has 5 stations.
Total time taken will therefore be:
= 8 * 5
= 40 minutes
math problem plz help me
Answer:
Option C.
Ground level = 0 foot
Hole = -3 feet
Dirt pile = 3 feet
PLEASE I NEED HELP URGENTLY
A long-distance phone company charges $4.95 month plus an additional $.10 per minute. a. Define a variable and write a formula to find the total cost per month for long-distance service. b. Use this formula to find the long-distance charges for 120 minutes of calls in one month.
Answer:
4.95+0.10x=120
Step-by-step explanation:
Hope this helps
Which of these grids is shaded red and blue in the ratio 1:2?
The number of red cells are 4 and the number of blue cells are 8. Then the correct option is C.
What are ratio and proportion?A ratio is a collection of ordered integers a and b represented as a/b, with b never equaling zero. A proportionate expression is one in which two items are equal.
In the grids, there are 12 square box.
Let R be the red and B be the blue.
R + B = 12 ...1
R / B = 1/2 ...2
By solving equation 1 and 2, we have
R + 2R = 12
3R = 12
R = 4
Then
4 + B = 12
B = 8
Then the correct option is C.
More about the ratio and the proportion link is given below.
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Need Help ASAP
Please help with this math question i dont understand it very well.
Answer:
-30h +40 - 60 I think.........
what expression is equivalent to x^2-10x+24
Answer:
(x-6)(x-4)
or
x=-6 , x=4
Step-by-step explanation:
Which equation has the slope of -2/7 and contains the point (5,-6)?
Answer:
i would go for B
Step-by-step explanation:
ASAP NOW AND YOULL GET 20 and ILL ANSWER ONE OF URS
Answer:
10/40=70/x
Step-by-step explanation:
mainly because the line is pointing at a
Substitution Method
2x+5y=-1
y=3x+10
Select the correct answer.
Which function passes through the points (2, 15) and (3, 26)?
A.
y = 11x + 7
B.
y = 11x − 7
C.
y = 7x + 11
D.
y = -11x − 7
E.
y = 7x − 11
Answer:
B. y = 11x - 7 passes through the points (2 , 15) and (3 , 26)
Step-by-step explanation:
Find two consecutive even integers such that the sum of the smaller and 3 times the larger is 330
I am so stuck please any one help
Answer:
The 2 numbers = 81 and 83
Step-by-step explanation:
As, one number = x
The other, because it's an even number and consecutive = x + 2
So the larger numbef here is x + 2
And they are saying 3 times x + 2 plus x = 330
So let's solve!
3 times x + 2 = 3(x+2) = 3x + 6
So we will add it to x = (3x + 6) +(x) = 4x + 6
So they are saying the sum of them will be 330
So, 4x + 6 = 330
4x = 330 - 6
4x = 324
x = 324/4
x = 81
So x is the first number = 81
And the second is x + 2 = 81 + 2 = 83
So the 2 numbers are 81, 83
Lets check!
3 times the bigger number = 83 x 3 = 249
We will add it to 81 and we will get 330
So, 249 + 81 = 330
So the answer is right
During their last game, the Miami Dolphins scored times for a total score of ͵Ͳ points. They scored points for each touchdown and ͵ points for each field goal. Write and solve the systems of equations to find the total touchdowns and field goals scored.
Answer:
The Miami Dolphins had 3 touchdowns and 3 field goals.
Step-by-step explanation:
It is given that During their last game, the Miami Dolphins scored 6 times, for a total score of 30 points. They scored 7 points for each touchdown and 3 points for each field goal.
We need to write and solve the system of equations to find the total touchdowns and field goals scored.
Let x represents the number of touchdowns.
Let y be the number of field goals.
It is given that the Miami Dolphins scored 6 times
[tex]x+y=6[/tex]
[tex]x=6-y[/tex]....(1)
They scored 7 points for each touchdown and 3 points for each field goal.
The total score is 30 points:
[tex]7x+3y=30[/tex] ...(2)
Put the value of x from equation (1) into equation (2).
[tex]7( 6-y)+3y=30[/tex]
[tex]42-7y+3y=30[/tex]
[tex]-4y=30-42[/tex]
[tex]-4y=-12[/tex]
[tex]y=3[/tex]
Put y = 3 in equation 1.
[tex]x=6-3[/tex]
[tex]x=3[/tex]
Hence, the Miami Dolphins had 3 touchdowns and 3 field goals.
the 4 angles of heptagon equal and each of other 3 is 20° greater the first 4.Find the angles
Answer:
interior angle of a heptagon = 900 degrees
900 = 4x + (3x + 60)
840 = 7x
840/7 = 120
X = 120
120 X 4 = 480
120 X 3 = 360
480 + 360 + 60 = 900
4 angles = 120 degrees each
3 angles = 140 degrees each
Tamika records the outside temperature at 6:00 a.M. The temperature increases by 2ºF every hour for the next 6 hours. If the temperature continues to increase at the same rate, what will the temperature be at 2:00 p.M.?
The temperature at 2 PM will be x +16°F
What is temperature?Temperature is a phrase used to describe the degree of heat or cold on any scale, including Fahrenheit and Celsius. A thermometer is used to determine temperature. It is calibrated using different temperature scales that historically defined themselves using different reference points and thermometric substances.
The most popular scales are the Celsius scale, also known as "centigrade," with the unit °C, the Fahrenheit scale, with the unit °F, and the Kelvin scale, with the unit K. The latter is primarily used for scientific research and is the primary temperature scale specified by the International System of Units (SI).
Let temperature at 6 AM be x°F
Time difference between 2 PM and 6 AM:
Δt = 14 -6
= 8 hour
increase in temperature after every 1 hour = 2°F
increase in temperature in 8 hour will be:
ΔT = 2 * Δt = 2*8 = 16°F
Temperature at 2 PM will be = x + ΔT
= x +16°F
To know more about temperature please visit:
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What is the LEAST common denominator for 6 and 8
Answer:
3 4 if u wanna go father 1.5 2
Step-by-step explanation:
Answer:
24 is the lcd for 6 and 8..
Simplify. 11 3/4 - 8 1/2 A. 3 1/4 B. 3 1/3 C. 4 1/4
Answer:
A
Step-by-step explanation:
11 3/4 - 8 1/2 = 3 1/4
Find the area of this parallelogram.
Answer:
147.03 cm
Step-by-step explanation:
Answer:
147.03
Step-by-step explanation:
WxL=147.03
I think this is right ❤️
Which shows the image of rectangle ABCD after the rotation (x, y) - (-y, x)?
Answer:
hey lol
Step-by-step explanation:
it's the one on the right btw
There are 21 boys and 7 girls in your gym class. Your teacher selects 2 students at random to be team leaders for a game. What is the probability that both students are girls?
A: 17/36 c: 1/2
b: 1/16 d:1 /18
Answer:
either b or d
Step-by-step explanation:
Number 7! The figures are similar, find each missing measure
Answer:
X=2.1 cm
Step-by-step explanation:
24 divided by 6= 4
the bigger triangle is 4 times larger. so you would divide 8.5 by 4 which is 2.1.
Hope this helps!! Also I sorry if I got the answer wrong. I haven't done this type of math in years.
Select all the situations for which only zero or positive solutions make sense.
Group of answer choices
Measuring temperature in degrees Celsius at an Arctic outpost each day in January.
The height of a candle as it burns over an hour.
The elevation above sea level of a hiker descending into a canyon.
The number of students remaining in school after 6:00 p.m.
A bank account balance over a year.
The temperature in degrees Fahrenheit of an oven used on a hot summer day.
Answer:
Step-by-step explanation:
On this one you would eliminate the ones that are negative or that go into a negative. Which would be A,C, and E. The rest that are left are zero or positive. B for example is a zero because eventually there will be no candle. D would be the same in some way, the students will eventually leave the school. Finally F, the temperature would be increasing.
Answer - B,D,F
Find the value of y....?
Answer:
B) 12
Step-by-step explanation:
(9y + 7)° + (7y - 19)° = 180° (interior angles in the same side of transversal)
(9y + 7 + 7y - 19)° = 180°
(16y - 12)° = 180°
16y - 12 = 180
16y = 180 + 12
16y = 192
y = 192/16
y = 12
Answer:
9y+7=7y-19
7+19=7y-9y
26=-2y
26/-2=-2y/-2
y=-13
I hope this helps:
5x + 3y = 5
5x + 7y = 25
Answer:
(-2,5)
Step-by-step explanation:
how can i raise my grade
Answer:
You can try asking for extra credit assignments, and just become a try hard on whatever assignments you have left. There's not much other thing besides asking for extra credit and trying your best on the assignments you have left
PLS I HAVE JUST 20 MINS HELP
Answer:
a7 b8
Step-by-step explanation: