Answer:
40 minutes per night, 5 days per week
Step-by-step explanation:
EASY!!!!!!
What is the area of figure?
A trapezoid with short base eighteen centimeters, long base thirty-eight centimeters, height sixteen centimeters, and diagonal side lengths twenty centimeters.
A. 320 square centimeters
B. 608 square centimeters
C. 448 square centimeters
D. 560 square centimeters
Answer
B. 608
Step-by-step explanation:
38-14=24
24*16=384
14*16=224
384+224=608.
you are welcome!!
The area of the figure is 608 square centimeters.
How to determine the area of the trapezoid?
Given
A trapezoid with a short base of eighteen centimeters, long base of thirty-eight centimeters, height of sixteen centimeters, and diagonal side lengths of twenty centimeters.
Thus,
38-14=24
24*16=384
14*16=224
384+224=608.
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need asap please!!!!
Answer:
use ur brain
Step-by-step explanation:
ask ur teacher if the be bad teacher google it
The radius of a soccer ball is 4 inches. Approximately what volume of air can it hold? Use 3.14 for Round to the nearest
tenth of a cubic inch,
Recall the formula Sphere V-
in
Mark this and retum
Save and Exit
Submit
Answer:
V =267.9 inch^3
Step-by-step explanation:
The volume of a sphere is given by
V = 4/3 pi r^3
V = 4/3 * 3.14 * (4)^3
V =267.946666666
Rounding to the nearest tenth
V =267.9 inch^3
Which number sentence is true?
A. 78 = 68
B. 78 < 69
C. 78 = 75
D. 78 < 81
E. 78 > 84
Answer: the answer choice “d” is correct
Step-by-step explanation:
because the different symbols mean different things and yeah
Answer:
D
Step-by-step explanation:
lesser value ------- < --------This side bigger value {open mouth}
78 < 81
81 is bigger than 78
How to change miles per hour to feet per second?
Answer:
1 mph = 1.46666667 fps
The width of a rectangle is 2 less than twice its length. If the area of the rectangle is 182 cm 2 , what is the length of the diagonal?
Answer:
20.93cm
Step-by-step explanation:
The shape of the solid is rectangle
Area = length × width
But the width (w) = 2 times the length minus 2
W = 2L - 2
A = L × (2L - 2)
Area of the rectangle = 182cm²
A = 2L² - 2L
182 = 2L² - 2L
2L² - 2L - 182 = 0
L² - L - 91 = 0
Solving the equation using quadratic formula,
A = 1, b = -1, c = -91
L = [-b±√(b² - 4ac)]/2a
L = [-(-1) ± √((-1)² - 4*1*(-91))] / 2(1)²
L = [1 ± √(1² + 364)] / 2
L = [1 ± √(365)] / 2
L = (1 ± 19.10) / 2
Note : Since we're working with length, we can't have a negative value as a solution hence we would not test both sides
L = (1 + 19.10) / 2 = 10.05cm
Width = 2L - 2
W = 20.1 - 2 = 18.10cm
Length = 10.05cm
Width = 18.10cm
Diagonal of the rectangle = ?
To find the diagonal, we'll use pythagorean theorem,
A = diagonal
B = length
C = width
a² = b² + c²
a² = (10.05)² + (18.10)²
a² = 110.25 + 327.61
a² = 437.86
a = √(437.86)
a = 20.93cm
The diagonal of the rectangle is 20.93cm
what is the upper quartile in the box plot
Answer:
121
Step-by-step explanation:
Answer:
121
Step-by-step explanation:
Because it shows clearly that small box is 121
What is the surface area of this design?
Answer:
440 inches squared - the last option
Step-by-step explanation:
Step 1. Surface area of top square.
5 x 5 = 25 inches sq
Step 2. Surface area of the 4 sides of the cuboid.
5 x 8 = 40 inches sq
40 x 4 = 160 inches sq
Step 3. Surface area of the large square.
10 x 10 = 100 inches sq
100 - 25 (because it's being covered) = 75 inches sq
Step 4. Surface area of the 4 sides of the large flat cuboid.
2 x 10 = 20 inches sq
20 x 4 = 80 inches sq
Step 5. (OPTIONAL) Surface area of the bottom
10 x 10 = 100 inches sq
Step 6. Add up all.
25 + 160 + 75 + 80 (+ 100 if including the base) = 340
We can conclude that we have to include the base as well because 340 inches sq is not an option listed.
340 + 100 = 440 inches sq
440 inches sq is the last option
Hope this helps :)
Derive the equation of the parabola with a focus at (2, -1) and a directrix of y = - =
2
f(x) = -(x + 2)2 - 3
4
7
3
f(x) = (x + 2)2 +
4
3
f(x) = -(x - 2)2 +
4
3
f(x) = -(x - 2)2 -
4
Answer:
the second one is right
Lars needs to purchase AT LEAST 35 party decorations. The Party Palace charges $0.50 per
decorative streamer and $0.25 per balloon, including tax. Which combination of streamers and
balloons can Lars purchase with $11.50 at the Party Palace?
19 streamers and 16 balloons
12 streamers and 22 balloons
11 streamers and 25 balloons
9 streamers and 27 balloons
Answer:
try going for B
Step-by-step explanation:
100 POINTS!!! NO JOKE!!! (IF YOU ANSWER THE QUESTIONS) It's a little time consuming but I want to see who can answer the fastest. I would really appreciate the answers to these asap. ONLY ANSWER IF YOU KNOW HOW TO DO THESE!!! They're easy but I don't want to do them.
Appreciate = Will mark Brainliest if correct
Thanks so much
Answer:
1. x = -4
y = -20
2. x = -1
y = 3
3. x = 7
y = 4
4. x = -6.5
y = -10.5
hope this helps :) sorry if I get it wrong!
Answer:
1) x=−4, y=−20
2) x=−1, y=3
3) x = 7 , y=4
4) x = -6.5 , y = -10.5
Step-by-step explanation:
1) y=5x;−3x+2y=−28
solving system by substitution:
substitute y =5x into 2nd equation:
-3x +2*5x =-28 → -3x+10x = -28 → 7x = -28 → x = -4
plug in x in any equation and solve for y = 5* -4 = -20
2) solving system by elimination:
Multiply the first equation by 7, and the second equation by 5.
7(4x−5y=−19)
5(3x+7y=18)
----------------------
28x−35y=−133
15x+ 35y= 90
Add them up to eliminate y:
43x=−43 divide both sides by 43
x=−1
plug x back into 1st equation to solve for y
4x−5y=−19
(4)(−1)−5y=−19
−5y−4=−19 add 4 to both sides
−5y=−15 divide by -5
y=3
3) y =4 , 5x -6y = 11
plug in 4 for y in 2nd equation and solve for x:
5x -6* 4 =11 simplify
5x - 24 = 11 add 24 on each side
5x = 11 +24 simplify
5x = 35 divide by 5 on each side
x =7
4) y = x -4, 2x - y = -2.5
use substitution method:
2x -(x-4) = -2.5 distribute ( )
2x-x+4 = -2.5 simplify
x + 4 = -2.5 subtract 4 on each side
x = -2.5 -4
x = -6.5
plug in -6.5 for x in 1st equation and solve for y:
y = -6.5 -4
y = -10.5
Find the measures of the vertical angles shown. Show all work for full credit.
Answer:
40 degrees
Step-by-step explanation:
Look at the attachment
can someone answer this I'll mark brainliest for the correct one i don't know what phrases they are talking about either so um yeah if someone could clarify that too that would definitely be the brainliest but you have to answer the original question too maybe these will help too the actual answers for some reason they change that....idk why but yeah, please answer
Answer:
Is this PSAT or where are u answering this question?
A function ___ is an expression that defines a function.
a. Value
b. Rule
c. Statement
d. Relation
Answer:
Option B - Rule) is your answer
What is the value of x?
8
70°
Enter your answer in the box.
30
10
X=
Wha do you call a pair of angles that add up to 180 degrees?
Please help.
Answer:
supplementary angles
Step-by-step explanation:
Supplementary angles add to 180
Complementary angles add to 90
help help!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
Answer:
I am pretty sure it is the 3rd one
(In geometry, an isosceles triangle is a triangle that has two sides of equal length. And i think 3 of them are an isosceles triangle)
Answer:
there are 3 isosceles triangles
explanation:
triangles A B and D are isosceles
HELP PLEASE
Hudson has xx nickels and yy dimes. He has at most 13 coins worth at least $1 combined. Solve this system of inequalities graphically and determine one possible solution.
I NEED THE 2 INEQUALITIES, AND THE ANSWER
Answer: $ 12.05
Step-by-step explanation:
Answer:
Step-by-step explanation:
What is the area of the figure?
PLS HELP ME THIS IS DUE TMR !
Answer:
53 in^2
Step-by-step explanation:
We can find the area of the large rectangle, without the piece missing
A = l*w
A = 7*8 = 56
Now find the area of the piece that is missing
A = l*w
A = 1*3 =3
Take the large rectangle and subtract the piece that is missing
56-3
53
If there are 7 people in a family, 4 grandparents, a grandchild a mom and dad, what is the average age of each person, if all together they are 381 years old?
Answer: 54.43
Step-by-step explanation:
381 / 7
On a coordinate plane, a curved line crosses the x-axis at (negative 1, 0) and crosses the y-axis at (0, 0.25). The line exits the plane at (negative 2, negative 6) and (2, 6). Which statement is true about the end behavior of the graphed function?
Answer:
b
Step-by-step explanation:
hope this helps
Answer:
b
Step-by-step explanation:
What is the mean absolute deviation of this data set? 26, 31, 32, and 39
Answer:
3.5
Step-by-step explanation:
26, 31, 32, and 39
First we need to find the mean
(26+ 31+ 32+ 39) /4
128/4 = 32
The mean absolute deviation is sum of the positive difference between the number and the mean divided by the number of terms
((32-26)+ (32-31)+ (32-32)+ (39-32)) /4
14/4
3.5
Declan says that for any number n, the product 4x n is greater than 4. Which value of n shows why Declan is incorrect
Answer:
[tex]n > 1[/tex]
Step-by-step explanation:
Given
Statement: 4x n is greater than 4
Required
Value of n
First we need to rewrite the statement in algebraic form;
Product 4 * n is represented by 4n
greater than 4 is represented by > 4
Bringing these two together, it gives the following
[tex]4n > 4[/tex]
Divide through by 4
[tex]\frac{4n}{4} > \frac{4}{4}[/tex]
[tex]n > 1[/tex]
We've arrive at solution;
This means that n is greater than 1
So, the values of n must start from 2 to show that the condition is true
The value of n = 7/8 makes the inequality 4n > 4 false because 7/8 is less than 1.
What is inequality?It is defined as the expression in mathematics in which both sides are not equal they have mathematical signs either less than or greater than, known as inequality.
We have n as a number.
4n > 4
Plug n = 5
20 > 4 (true)
Plug n = 9/5
36/4 > 4
9 > 4 (true)
Plug n = 3
12 > 4 (true)
Plug n = 7/8
28/8 > 4
3.5 > 4 (false)
Thus, the value of n = 7/8 makes the inequality 4n > 4 false because 7/8 is less than 1.
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Help pleaseeeee
Find the volume of a corner, r measures 11 centimeters, height measurers 27 centimeters
Answer:
3419.46
Step-by-step explanation:
(pir^2h)/3
(3.14(121)(27)/3
3419.46
What is the slope intercept form of y-(-11)=x-(-11)
Answer:
y = x
Step-by-step explanation:
The equation of a line in slope- intercept form is
y = mx + c
Given
y - (- 11) = x - (- 11), that is
y + 11 = x + 11 ( subtract 11 from both sides )
y = x ← in slope- intercept form
while abbie is jogging she moves forward 85 cm every second how many seconds will abbie take to jog 8.5 meters
Answer:
85 cm = .85 meters
8.5 / .85 = 10 seconds
Step-by-step explanation:
Which scatter plot shows that the number of gallons of milk sold decreased as the price per gallon increased?
Answer:
The answer is D
Step-by-step explanation:
An alloy is composed of nickel, zinc, and copper in a ratio of 7:2:9. How many kilograms of each metal are needed to make 3.6 kg of this alloy?
Answer:
Nickel= 1.8 kg
Zinc= 0.4 kg
Copper= 1.8 kg
Step-by-step explanation:
7:2:9
7=nickel
2=zinc
9=copper
7+2+9=18
18×2=36
7×2=14 2×2=4 9×2=18
Divide by 10
14÷10=1.4 4÷10=0.4 18÷10=1.8
1.8+1.4+0.4= 3.6
1.8=nickel
0.4=zinc
1.8=copper
Amount of each metal are needed to make 3.6 kg of this alloy are,
Nickel = 1.4 kg
Zinc = 0.4 kg
Copper = 1.8 kg
We have to given that,
An alloy is composed of nickel, zinc, and copper in a ratio of 7 : 2 : 9.
Now, We can assume that,
Amount of nickel = 7x
Amount of zinc = 2x
Amount of copper = 9x
Hence, We get;
⇒ 7x + 2x + 9x = 3.6
⇒ 18x = 3.6
⇒ x = 3.6 / 18
⇒ x = 0.2
Thus, WE get;
Amount of nickel = 7x
= 7 × 0.2
= 1.4 kg
Amount of zinc = 2x
= 2 × 0.2
= 0.4 kg
Amount of copper = 9x
= 9 × 0.2
= 1.8 kg
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Can someone explain this step by step
Answer:
Step-by-step explanation:
[tex]1)\sqrt[4]{81h^{4}}=\sqrt[4]{3*3*3*3*h^{4}}\\\\=\sqrt[4]{3^{4}*h^{4}}\\\\ =3*h\\\\=3h[/tex]
Which is the graph of the function f(x) = x2 + 2x + 3?
5
1+
to 4 3 2 1
2 3
4 5 x
-2
-3
3
2
Answer:
1. C
2. UNKNOWN
3. (x-4)(x-2)
4. 5, -7
5. vertex=(3,4)
minimum value=4
6. UNKNOWN
7. 5/3
8. D
9. C
Step-by-step explanation:
