Enya walked 2km 309m from school to the store. Then, she walked from the store to her home. If she walked a total of 5km, how far was it from the store to her home?
Answer:
2 km 691 m
Step-by-step explanation:
5 km - 2 km 309 m
= 5000 m - 2309 m
= 2691 m
= 2 km 691 m
A figure with two right triangles is shown below. What is the distance between A and B ?
Answer:
21 feet
Step-by-step explanation:
12^2+x^2=20^2(Pythagorean theorem)
144+x^2=400
x^2=400-144
x^2=256
x=sqrt 256
x=16
y^2+12^2=13^2(Pythagorean theorem)
y^2+144=169
y^2=169-144
y^2=25
y=sqrt 25
y=5
distance between A and B=16+5
=21 feet
Solve the formula for the specified variable v=ypu for y
Step-by-step explanation:
[tex]v = ypu \\ v = y \times p \times u \\ dividing \: both \: sides \: by \: p \times u \\ we \: get \\ \frac{v}{p \times u} = \frac{y \times p \times u}{p \times u} \\ by \: simpliphying \\ \frac{v}{pu} = y \\ hence \\ y = \frac{v}{pu} [/tex]
thanks again for the help everyone
Answer:
[tex]\sf{ (z-7)(z-2)}[/tex]
explanation:
[tex]\sf z^2 - 9z + 14[/tex]
break down, (7 * 2) = 14
[tex]\sf z^2 - 7z - 2z + 14[/tex]
collect in parenthesis
[tex]\sf z ( z - 7 ) -2(z - 7)[/tex]
collect in groups
[tex]\sf{ (z-7)(z-2)}[/tex]
Find the degree of this polynomial.
-7d
Hey there!
The degree is the exponent.
Let me explain with examples.
Suppose we have a polynomial 4d.
Its degree is 1 (it's a first degree polynomial)
What is the degree of the polynomial 4d²?
That's right, this is a second-degree polynomial.
And so on...
Let's look at our polynomial.
We have
-7d.
What is the degree of the polynomial?
That's right, 1.
Hence, -7d is a
[tex]\boxed{\boxed{\bold{first-degree~polynomial}}}[/tex]
Hope everything is clear.
Let me know if you have any questions!
#KeepLearning
[tex]\bold{Don't~give~up...}[/tex]
49. Find the m
a. 60°
c. 300
b = 13
b. 75°
d. 73°
47
B.
c=17
Answer:
C. 30°
Step-by-step explanation:
thank you for the points make me brainliest please.
A car was travelling at a speed of 90km/h. What was its speed in m/s?
what is the maximum force required to prevent a ball weighing 17.3 lb from rolling down a ramp which is inclined at 24.3 degrees with the horizontal
Answer:
• 06/21/17
What is the minimum force required to prevent a ball weighing 22.6 lb from rolling down a ramp which is inclined 39.0 degrees with the horizontal
I need help
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Step-by-step explanation:
Help please and show work
Answer: i think that jacks volume would be 24 i think jills is 882 i believe but i may be wrong
Step-by-step explanation:
Use a graphing calculator or other technology to answer the question.
Which quadratic regression equation best fits the data set?
yˆ=1568.064x2−115.264x+2.608
yˆ=2.608x2−115.264x+1568.064
yˆ=2.608x2+115.264x+1568.064
yˆ=2.608x2+112.909x+1568.064
x y
15 423
17 398
19 308
20 255
21 297
25 365
29 401
Answer:
yˆ=2.608x2−115.265x+1568.065
Step-by-step explanation:
I took the test.
The quadratic regression equation best fits the data set is 2.608x² -155.264x + 1568.064 option second is correct.
What is the line of best fit?A mathematical notion called the line of the best fit connects points spread throughout a graph. It's a type of linear regression that uses scatter data to figure out the best way to define the dots' relationship.
Let's suppose the quadratic regression equation best fits the data set:
y = Ax² + Bx + C
From the data set, we can calculate the value of the A, B and C:
A = 2.608
B = -155.264
C = 1568.064
y = 2.608x² -155.264x + 1568.064
Thus, the quadratic regression equation best fits the data set is 2.608x² -155.264x + 1568.064 option second is correct.
Learn more about the line of best fit here:
brainly.com/question/14279419
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3/8 + 1/8 - 2/7 + 1/4 equals
Answer:
Step-by-step explanation: 37/56
2x+3y=11
10x+5y=20
Simple equation
Answer:
2x+3y=11. x=4 and y=1.
10x+5y=20. x=1 and y=2.
Evaluate the expression for k = –7 and m = –2.km − m
Answer:
2 km 7 m=2000m+7m=2007m=
1000
2007
km=1.007 km
Step-by-step explanation:
please mark me as brainlist
How many three-digit even numbers are possible if the leftmost digit cannot be zero?
Answer:
450
Step-by-step explanation:
There are 900 3-digit numbers in the range 100–999. Of those, exactly half are even numbers.
There are 450 even three-digit numbers.
7) Which of the numbers is rational?
Α) π
B) V25
C) V2
D) V3
Cos(90-2x) . tan(180+x) + sin^2(360-x)
Answer:
Step-by-step explanation:
Cos(90-2x) . tan(180+x) + sin^2(360-x)
= sin(2x) * tan(x) + sin²(x)
= 2sin(x) cos(x) sin(x)/cos(x) + sin²(x)
= 2sin²(x) + sin²(x)
= 3sin²(x)
A park is in the shape of rectangles. The park is 5/8 mile long and 2/3 mile wide. What is the area of the park?
Answer:
The area of a rectangle is the product of its dimensions. Your park has an area of
(5/8 mi)×(2/3 mi) = 10/24 mi² = 5/12 mi²
Step-by-step explanation:
Determine if the three lengths can be the measures of the sides of a triangle.
20 ft, 16 ft, 38 ft
Answer:
No
Step-by-step explanation:
No because if you have 38 on the bottom, 20 and 16 do not add up to 39 or more.
If the millers spend $1400 on housing, then what is their total budget?
Answer:
need more detail
Step-by-step explanation:
Find the measure of the missing angle.
Answer:
20 degrees
Step-by-step explanation:
90 degrees minus 70 degrees, because it is a 90 degree angle.
The value of 8 in 5.18 is. of the value of 8 in 5.81
The value of 8 in 5.18 is 0.08.
The value of the 8 in 5.81 is 0.8.
What is place value?Place value is the basis of our entire number system. This is the system in which the position of a digit in a number determines its value.
The number 42,316 is different from 61,432 because the digits are in different positions.
here, we have,
from the above we got idea about place value.
hence,
The value of 8 in 5.18 is. 0.08
the value of 8 in 5.81 is 0.8
To learn more on place value click:
https://brainly.com/question/27734142
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Please answer the following question:
A pen costs $2.09. It costs $0.45 less than a marker. Ken paid for one pen and one marker with a five-dollar bill. What is his change? If you can answer this thank you, you may use a tape diagram with caculations to determine his change.
Answer:
His change would be $1.27 because he paid $3.73 for the pen and marker.
Step-by-step explanation:
Consider the population of "last-minute" filers who mail their tax return during the last five days of the income tax period (typically April 10 to April 15).
a. A researcher suggests that a reason individuals wait until the last five days is that on average these individuals receive lower refunds than do early filers. Develop appropriate hypotheses such that rejection of H0 will support the researcherâs contention.
b. For a sample of 400 individuals who filed a tax return between April 10 and 15, the sample mean refund was $910. Based on prior experience a population standard deviation of Ï = $1600 may be assumed. What is the p-value?
c. At α = .05, what is your conclusion?
d. Repeat the preceding hypothesis test using the critical value approach.
Answer and Step-by-step explanation:
Solution:
Develop hypothesis:
H₀ : µ ≥ 1056
H₁ < 1056
Given:
n = 400
ẋ = 910
∂ = 1600
a = 0.05
The sampling distribution of sample means µ and standard deviation ∂ / √n.
Z = ẋ-µ /∂ / √n.
= 910 – 1056 / 1600 /√400.
= - 1.83
Probability: p = p(z< -1.83) = 0.033
At a = 0.05
If p value is smaller than significance level a, then hypothesis is rejected.
P < 0.05 its means H0 rejected.
Hypothesis test using critical value:
The critical value corresponding to probability of 0.05:
Z = -1.645
The rejection region, then contains all values smaller than -1.645.
If value of test statistics is within the rejection region, then null hypothesis rejected.
-1.83 < -1.645
Rejected H
does anyone know this i tried for hours and can’t figure it out
The lines represented by the equations y = -X – 3 and
5y + 5x = -15 are
neither parallel nor perpendicular
Submit Answer
the same line
parallel
perpendicular
What is the answer?
Answer:
The lines represented by the equations y = -X – 3 and
5y + 5x = -15
Step-by-step explanation:
neither are parallel nor perpendicular
Submit Answer
the same line
parallel
perpendicular
What is the answer?
PLZZZZZ HELP ME I WILL MAKE YOU BRAINLIEST ANWER PLZZZZZ THANKYOU!!!!!!
Answer:
Step-by-step explanation:
For the first one here is the answer:
Given.
Transitive property of equality- this is becasue the rule is if A=b and B=c then A=c. IN this situation its saying that a is parrelel to b and b is parralel to c therfore a is parrelel to c.
line A and d cross over at 90 degree angles making them perpendicular. -There should be a rule for this and if there is then write that rule down
Second answer:
Given.
Definition of a supplementary angle.
Definition of a supplementary angle
Definition of supplementary angles.
Alternate Exterior Angles Theorem
C=D
-Srry for the definiton of supplementary angles thing but thats the best answer for those.
Hope i helped
Urgent! please help
Х
If two lines do not intersect, then
they are parallel.
Mei tapes two pieces of paper together that each measure 30.45
centimeters. They then cut off 10.42 centimeters.
Pls help me
Question 4 Part C (3 points): Based on the composite function you created in part A, determine how many trees Carlos can expect to have after 22 days. Click the included image to refer back to Part A as needed.
The composite function is 20d-(80) = 67
A.86 trees in 22 days
B.440 trees in 22 days
C.1340 trees in 22 days
D.1360 trees in 22 days
Answer:
C) 1340 days
Step-by-step explanation:
The composite function you have given is incorrect.
The composite function for this question is:
t(d) = 60d + 20
(as I have proven in a previous question)
Substitute d = 22 into the function:
t(22) = 60(22) + 20
= 1320 + 20
= 1340 days