Answers
Related Questions
Can someoneee please help me
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9514 1404 393
Answer:
37°
Step-by-step explanation:
The diagonals of a rhombus are angle bisectors. Angle 1 matches the other half of angle L.
∠1 = 37°
__
Angle 2 is the complement, 53°, and angle 3 is the same as angle 2, 53°.
The diagonals of a rhombus are perpendicular bisectors of each other, so angle 4 is 90°.
Six years ago Matt was four times as old as Brown, and in 3 years the sum of their
ages will be 43 years. Find their present ages.
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Answer:
Matt=26
Brown=11
Step-by-step explanation:
Just trust me!!!
The present age of Matt given the information in the question is 26.
The present age of Brown given the information in the question is 8.
What are the linear equations that represent the question?4y - 6 = x equation 1
x + y + 6 = 43 equation 2
Where:
x = Matt's agey = Brown's ageWhat is Brown's age?Subsistute for x in equation 2
4y - 6 + y + 3 = 43
Combine similar terms
5y = 40
y = 8
What is Matt's age?
Subsitute for y in equation 1
4(8) - 6 = x
32 - 6 = 26
To learn more about simultaneous equations, please check: https://brainly.com/question/25875552
Please help ! Please help!
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In a study of speed dating, male subjects were asked to rate the attractiveness of their female dates, and a sample of the results is listed below (1 = not attractive; 10 = extremely attractive). Construct a confidence interval using a 95% confidence level. What do the results tell about the mean attractiveness ratings of the population of all adult females? 5, 8, 2, 8, 7, 6, 6, 8, 9, 9, 6, 9 What is the confidence interval for the population mean μ? <μ
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Answer:
Confidence Interval = ( 5.6 < μ < 8.2 )
The interval shows that the mean attractiveness is Above average on a scale of 1 to 10
Step-by-step explanation:
Data Given : 5, 8, 2, 8, 7, 6, 6, 8, 9, 9, 6, 9
a) construct a confidence interval at a 95% confidence level
confidence interval = x ± tcritical ( s / √ n ) ------ ( 1 )
n = 12
μ (mean) = ( 5+8+2+8+7+6+6+8+9+9+6+9 ) / 12 ≈ 6.92
std ( s ) = √ 1/11 *∑( xi- X )^2
= √ 1/11 * ( 5 - 6.92)^2 + ( 8 - 6.92)^2 + ( 2 - 6.92)^2 + ( 8 - 6.92)^2 + ( 7-6.92)^2 + ( 6 - 6.92)^2 + (6 - 6.92 )^2 + ( 8 - 6.92 )^2 + ( 9 - 6.92)^2 + ( 9 - 6.92)^2 + ( 6 - 6.92 )^2 + ( 9 - 6.92 )^2
= √ 1/11 * 46.92 = 2.07
tcritical at ∝ 0.05 , df = 11 = 2.20
Back to equation 1
6.92 ± 2.2 ( 2.07 / √ 12 )
( 6.92 ± 1.31 )
Confidence Interval = ( 5.6 < μ < 8.2 )
Carl paid $40 for 12.5 gallons of gas.After calculating,he said that the cost per gallon was about 31 cents per gallon.Is there anything wrong with Carl's thinking?.
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Answer:
Well yes, because it should have cost $3.2 PER gallon
Step-by-step explanation:
Divide 40 by 12.5 to find out how much of a per gallon costs! Hope it helps.
I NEED HELP PLEASE ASAP!
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Answer:
Step-by-step explanation:
Angles of Elevation and Depression
Acellus
Find the distance from point B to point C.
Enter as a decimal rounded to the nearest tenth.
58
6 mi
B
с
BC = [?] mi
Enter
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Answer:
Distance between B and C is 9.6 miles.
Step-by-step explanation:
By applying tangent rule in the given right triangle ABC,
tan(58°) = [tex]\frac{\text{Opposite side}}{\text{Hypotenuse}}[/tex]
= [tex]\frac{BC}{AB}[/tex]
= [tex]\frac{BC}{6}[/tex]
1.60 = [tex]\frac{BC}{6}[/tex]
BC = 9.6 mi
Therefore, Distance between B and C is 9.6 miles.
Answer: 9.6
Step-by-step explanation:
y varies directly as x. When x = 9, y = 27
Find y when x = 27
Answers
Answer:
y/x, 27/9 = 3, 3 = y/27, y = 81.
Step-by-step explanation:
help me please I will give brainliest!
Answers
Answer:
A. y = 3x + 3
Step-by-step explanation:
The slope is 3 and the y-intercept is 3. Therefore, answer A is correct
1. Find the slope of the graph. Slope:
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Answer:
I think the answer is 5 down and over to the left 3.
Step-by-step explanation:
I just counted from the point on the (4,3) and counted down until it was line up with the other point. Next, I counted from there to the other point.
9.3+b=−42 , you would subtract 9.3 to isolate the variable.
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Answer:
yeh you are correct so it will be b is equal to minus 42 minus 9.3 that will be equal to -51.3 so that is the value of b
Can you help me thanks!
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A box contains 3 black pens, 7 blue pens and 5 red pens. Without replacing the first pen,
what is the probability of pulling a red or blue pen?
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Answer:12/15
Step-by-step explanation: first you add 7+5=12
then add 12+3=15
Li’s family is saving money for their summer vacation. Their vacation savings account currently has a balance of $2,764. The family would like to have at least $5,000.
The inequality 2764 + x Greater-than-or-equal-to 5000 can be used to determine the amount of money the family still needs to save. What is the solution to the inequality?
x Greater-than-or-equal-to 2236
x Greater-than-or-equal-to 7764
x Less-than-or-equal-to 2236
x Less-than-or-equal-to 7764?
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Answer: x greater-than or equal-to 2,236
Step-by-step explanation:
5,000-2,764= 2,236
so Li's family still needs to save at least $2,236
Answer:
A
Step-by-step explanation:
bc
A rectangle with sides 14 cm and 6 cm has the same diagonal as a square.
What is the length of the side of the square.
Give your answer as a surd in its simplest form.
Answers
Answer:2* square root 58
Step-by-step explanation:
To find the diagonal follow these steps:
(14^2(the side) + 6^2(the other side))square rooted
(14^2 is 196 + 6^2 is 36)
so its square root of 232 or
2*square root of 58.
Answer Choices
A. -0.01
B. 2
C. 0.01
D. 10,000
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Answer:I hink its B if its not im sorry
Step-by-step explanation:
Explain one way to find the area of the polygon at the right. Then find the area in square units.
Answers
Answer:
27 Units^2
Step-by-step explanation:
Split it up into sections, attached below are 3 different sections.
Section 1:
5*3=15
Section 2:
2*4=8
Section 3:
4*2/2 = 4
Add all the sections together:
15+8+4 = 27 Units^2
Please Mark Brainliest if this helped
Please Mark Brainliest if this helped
If f(x) = V7x + 31 , find f(0).
Answers
Answer:
f(0) = 31
Step-by-step explanation:
We are given the following function:
[tex]f(x) = \sqrt{7x} + 31[/tex]
f(0).
This is the value of f when [tex]x = 0[/tex]. So
[tex]f(0) = \sqrt{7*0} + 31 = \sqrt{0} + 31 = 0 + 31 = 31[/tex]
So f(0) = 31
You are constructing a concrete landing pad for a helicopter. You have 4704 cubic feet of concrete
If the landing pad is a square that is 56 feet on each side, how thick will the pad be
The pad will be feet thick
If you want to use the concrete to build a circular landing pad with the same thickness as the square landing pad, what would the diameter of that landing pad be?
The diameter will be feet
(Use 3.14 for pi Round the answer to the nearest hundredth)
Answers
Answer:
Round it to the nearest hundredth
Step-by-step explanation:
find the HCF of 12;28 and 32
Answers
Answer:
4
Step-by-step explanation:
28 = 22 • 7
12 = 22 • 3
32 = 25
Rectangle DEFG was dilated
to form D'E'F'G. Point G(-2,0)
was dilated to G'(-8,0).
Answers
Answer:
A. (-2,1)
Step-by-step explanation:
Solve for the following by
FACTORING:
x2 + 15x + 56 = 0
Answers
Answer:
17x + 56 = 0
Step-by-step explanation:
add 2x and 15x
Mr okeke has 11 $5 dollar bills he wants to give three children even a
mount
Answers
Answer:
it would be a fraction 18.333333333
Step-by-step explanation:
Simplify (8 ÷ 24) ÷ 2
Answers
Answer:
1/6
Covert simplest
1/3÷2
1/6
Solve the equation for x, where x is restricted to the given interval.
y=8cot4x, for x in (0, pi/4)
Answers
Ten coins weigh 25 grams. How many grams does 1 coin weigh?
Answers
Answer:
2.5 Grams
Step-by-step explanation:
You divide 25 by 10 giving you 2.5 Grams.
Which is the solution set of the inequality 15y-9<36?
9
Oy>
9
OY 5
OV<3
Oy>3
Answers
Answer:
15y>36+9
15y>45
y>45^15
y>3
10.
25
xº
40
Solve for x. Round to the nearest tenth
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Answer:
51.32
Step-by-step explanation:
∠B = arcsin(b·sin(A)a)
= 0.67513 rad = 38.682° = 38°40'56"
∠C = 180° - A - B = 0.89566 rad = 51.318° = 51°19'4"
c = a·sin(C)sin(A) = 31.22499
twenty subtract from 28
Answers
Answer:
8
Step-by-step explanation:
Answer:
-8
Step-by-step explanation:
20-28= -8
please please help i will mark u brill
please fast i need it right know !!!!!
Answers
Answer:
yes
Step-by-step explanation:
8d+54=150
8*12+54
96+54
150