In right triangle DEF, ∠E is a right angle, m∠D=26∘, and DF=4.5.
sin26∘≈0.44
cos26∘≈0.90
tan26∘≈0.49
What is the measurement of EF?
If necessary, round your answer to two decimal places, like this: 42.53
Answers
Related Questions
Write an equation of the line that passes through (-1,0) and (0,0)
Answers
Answer:
f(x) = x * 0
Step-by-step explanation:
Have a great day :)
What is the measure of AC?
Answers
Answer:
A. 88
Step-by-step explanation:
A circle is 360 degrees right ? so, 136 cant be right since 136 is almost half of a circle and that angle doesn't look nearly half, 44 and 22 cant be right either since AB is 44 degrees and its growing outwards so it cant be exactly 44 and it cant be less 44 (22)
so your answer will be A. 88
What is the y intercept? 7x+y=10
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Answer:
the y intercept is y
Step-by-step explanation:
because we have the variable already/////
What type of solution is "x=0" (one solution, no solution, infinite solutions)? Explain.
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It is a no solution equation
One week gas $1.25 gallon the next sweet gas was $1.50 per gallon by what percentage to the price increase
Answers
Answer:
20%
Step-by-step explanation:
The first step is to calculate the increase
= 1.50-1.25
= 0.25
Therefore the percentage increase can be calculated as follows
= 0.25/1.25 × 100
= 0.2 × 100
= 20%
Hence the price increased by 20%
Please help me find the area
Answers
Answer:
[tex]8x^{2} +14x+6[/tex]
Step-by-step explanation:
The formula for the area of rectangle is length times width:
[tex](2x+2)(4x+3)\\[/tex]
Use FOIL method:
[tex]8x^{2} +6x+8x+6\\8x^{2} +4x+6[/tex]
Is this statement true or false?
r={5, 10, 15, 20} is a solution to 5.5r≤27.5.
true
false
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Have a nice day :)
THE ANSWER IS FALSE
During a snowstorm, the temperature drops from 0°F to -12°F in 3 hours. On
average, by how many degrees is the temperature changing per hour?
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Answer:D.
-4°F
Step-by-step explanation:
Answer:
D
Step-by-step explanation:
d
what's the midpoint of (-10,3) and (0,9)
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Answer:
To find the midpoint we need to find the point which is the same distance between the x and y values in both points. For example the distance to a point that will be shared among the 2 x's is -5. -10 (x1) and 0 (second x value) are both 5 units away from -5. to -5 is the x of our new point: (-5, y)
Now do the same for the y value:
9-3=6
6 is the y value of our new point
(-5, 6) is your answer
Hoped this helped!
Step-by-step explanation:
I’ll mark u as brainlist if u get this right!
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Answer:
(30, 32.4)
Step-by-step explanation:
It represents the highest point
QUESTION #1
Write the rule to
describe the rotation.
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Answer:Hope it helps.
Step-by-step explanation:
Rotation 90 degrees clockwise.
180 degrees would be half way turned and clock wise starts at 12 and goes to 1-12. Counter would go 12-11-10. Think of it as a clock. Tried my best. GL
A jeweler wants to make 14 grams of an alloy that is precisely 75% gold.. The jeweler has alloys that are 25% gold, 50% gold, & 82% gold. Choose 2 different alloys that can be used to create one that is 75% gold. pls try to explain with a system of equations ; ;
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Given that the jeweler has alloys that are 25% gold, 50% gold, and 82% gold.
As he wants to make 14 grams of an alloy by adding two different alloys that is precisely 75% gold, so one alloy must have a percentage of gold more than 75%.
One alloy is 82% gold and, the second can be chosen between 25% gold, 50% gold, so there are two cases.
Case 1: 82% gold + 50% gold
Let x grams of 82% gold and y grams of 50% gold added to make x+y=14 grams of 75% gold, so
75% of 14 = 82% of x + 50% of y
[tex]\Rightarrow 75/100 \times 14 = 82/100 \times x + 50/100 \times y \\\\[/tex]
[tex]\Rightarrow 75/100 \times 14 = 82/100 \times x + 50/100 \times (14-x)[/tex] [as x+y=14]
[tex]\Rightarrow 75 \times 14 = 82 \times x + 50 \times (14-x) \\\\\Rightarrow 75 \times 14 = 82 \times x + 50 \times14-50\times x \\\\\Rightarrow 75 \times 14 = 32 \times x + 50 \times14 \\\\\Rightarrow 32 \times x =75 \times 14 - 50 \times14 \\\\[/tex]
[tex]\Rightarrow x =(25 \times 14)/32=10.9375[/tex] grams
and [tex]y = 14-x= 14-10.9375=3.0625[/tex] grams.
Hence, 10.9375 grams of 82% gold and 3.0625 grams of 50% gold added to make 14 grams of 75% gold.
Case 2: 82% gold + 25% gold
Let x grams of 82% gold and y grams of 25% gold added to make x+y=14 grams of 75% gold, so
75% of 14 = 82% of x + 25% of y
[tex]\Rightarrow 75/100 \times 14 = 82/100 \times x + 25/100 \times y \\\\\Rightarrow 75/100 \times 14 = 82/100 \times x + 25/100 \times (14-x) \\\\ \Rightarrow 75 \times 14 = 82 \times x + 25 \times (14-x) \\\\\Rightarrow 75 \times 14 = 82 \times x + 25 \times14-25\times x \\\\\Rightarrow 75 \times 14 = 57 \times x + 25 \times14 \\\\\Rightarrow 57 \times x =75 \times 14 - 25 \times14 \\\\[/tex]
[tex]\Rightarrow x =(50 \times 14)/57=12.28[/tex] grams
and [tex]y = 14-x= 14-12.28=1.72[/tex] grams.
Hence, 12.28 grams of 82% gold and 1.72 grams of 50% gold added to make 14 grams of 75% gold.
David's bowling score is 6 less than 2 times Aaron's score. The sum of their scores is 84. Find the score of each student. Use the variable a for Aaron's score.
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Answer:
Aaron's bowling score is 30
David's bowling score is 54
Step-by-step explanation:
The variable representing Aaron's score is = a
The variable representing David's bowling score = d
The sum of their scores is 84.
= a + d = 84...... Equation 1
David's bowling score is 6 less than 2 times Aaron's score.
d = 2a - 6
Substituting 2a - 6 for d in Equation 1
a + 2a - 6 = 84
3a - 6 = 84
3a = 84 + 6
3a = 90
a = 90/3
a = 30
Hence, Aaron's bowling score is 30
d = 2a - 6
d = 2(30) - 6
d = 60 - 6
d = 54
David's bowling score is 54
a family wants to rent a car to go on vacation Company A charges $30.50 and 11 cent per mile. Company B charges $60.50 and 12 cent H ow much more does Company B charge for x miles than Company A PLZ HELP MEEEEEEEEEEEEEEEEEEEEEEEEEE I WILLLLLL RATEEEE BRAINEST
Answers
Answer:
$30 and 1 cent more
Step-by-step explanation:
$60.50 - $30.50 = $30
0.12 - 0.11 = 0.01
I hope this helped, please mark Brainliest, thank you !!
Find the equation of the linear function x 0 1 2 3 4 y -4 -2 0 2 4
Answers
Answer:
its counting down
Step-by-step explanation:
because it was in the positives and went down to the negatives
Find the area of the composite figure below.
find the area of the composite figure below 4 ft
4 ft
10 ft
4 ft
4 ft
Answers
Answer:
112
Step-by-step explanation:
srry. i meant to put 112 erlier
What is the solution set of {x | x > -5} ∪ {x | x < 5}?1. the number between -5 and 5
2. the empty set
3. all numbers except -5 and 5
4. all real numbers
Answers
Answer:
B
Step-by-step explanation:
Just did it
Answer:
b
Step-by-step explanation:
HELP
Write an equation in point-slope form and slope-intercept form
passes through (6,2), slope= (⅔)
Answers
Answer:
Step-by-step explanation:
y - 2 = 2/3(x - 6)
y - 2 = 2/3x - 4
y = 2/3x - 2
Mark and Nora both work at the same pet store. The inequality y less than or equal too 2x relates x, the number of hours Mark works each week, and y, the number of hours that Nora works. Which ordered pair must be included in the solution set of the inequality when interpreted in the context of the problem? please help
(–7, 20)
(0, 0)
(8, 2)
(13, –28)
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Answer:
y≤2x
Step-by-step explanation:
answer in comments
HELP ME BRUH PLEASEEEE
Answers
Answer:
B and C
Step-by-step explanation:
B. 3.5 x 0.98
C. 7/2 x 98/100
GIVING BRAINLIEST. LOTS OF POINTS. Describe a real-life situation that can be modeled by the equation 11x + 5 = 8x + 23
Answers
Answer:
See below.
Step-by-step explanation:
Jane and John are each hiking a trail in the city. Jane is on her bike, and John is jogging.
At noon, Jane is at the 5 mile mark and rides at 11 miles per hour.
Also at noon, John is at the 23 mile mark and jogs at 8 miles per hour.
x is the number of hours after noon.
Will Jane catch John? After how many hours?
Use the Distributive Property to Expand the Expression
1) 8 ( b + 5 )
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Answer:
8b + 40
Step-by-step explanation:
8( b + 5 )
8×b + 8×5
8b+40
What is the sum of the expression (8 − 4i) + (−2 + 7i)?
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You can solve the equation 2x + 7 = 1 - x by graphing y = 2x + 7 and y = 1 - x and finding the point of intersection
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Answer:
x = -2
Step-by-step explanation:
You can also solve for the equation given.
2x + 7 = 1 - x
3x = -6
x = -2
The solution to the equation 2x + 7 = 1 - x is x = -2.
To solve the equation 2x + 7 = 1 - x by graphing, we can plot the two equations on a graph and identify the point where they intersect.
First, let's graph y = 2x + 7 and y = 1 - x on the same coordinate system.
The equation y = 2x + 7 represents a straight line with a slope of 2 and a y-intercept of 7.
The equation y = 1 - x represents a straight line with a slope of -1 and a y-intercept of 1.
Plotting these lines, we can see that they intersect at a specific point on the graph. The coordinates of this point represent the solution to the equation 2x + 7 = 1 - x.
By visually inspecting the graph, we can determine the point of intersection, which is approximately (-2, 3). This means that x = -2 is the solution to the given equation.
To learn more about the equation;
https://brainly.com/question/12788590
#SPJ6
Find the equation of the line that has a slope of 1/2 and passes through the point (-4,6).
A. x - 2y = -16
B. x + y = -16
C. 2x - y = 8
D. x + 2y = -8
Answers
Answer:
c
1/2 × (-4,6) your welcome
okay so, i know how to solve by elimination but not when the equation is mixed up like this, how do i get the equation in the right form so i can solve it?
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For the equation y = 2x - 4, decide whether each ordered pair below is a
solution to the equation. *
Yes or No
(0,-4)
(2.0)
(1,5)
(-2,0)
(-3,-10)
Answers
Answer:
(0,-4) — (2,0) — (-3,-10) are solutions to the equation
Step-by-step explanation:
Just plug in the x and y values of the set in the equation.
I hope this helps! Please mark me as the brainliest!
5. Amy has 10 yd of fence to put around a tree. She uses all the fence to make six
sections that are the same length. Which expression does NOT equal the length of one
of these sections in yards?
Answers
Answer: See explanation
Step-by-step explanation:
You didn't give the options but let me help out.
From the question, we are informed that Amy has 10 yd of fence to put around a tree and that she uses all the fence to make six sections that are the same length.
The expression that will be equal to the length of one of these sections in yards will be:
= 10 yards / 6
= 1.67 yards or 1 2/3 yards
This means that any option that you see that is different from the answer above will be the answer based on your question.
what is the number of 25% of 32
Answers
Answer:
The answer is 8.
Step-by-step explanation:
hope that helps
32 x 0.25 = 8
10 (2+3)-83 what’s the answer ?