Please answer I’m desperate
Answer:
the square root of 20 could be between 4 and 5 OR -4 and -5.
Step-by-step explanation:
plus or minus 4 squared is 16 and plus or minus 5 squared is 25. finally, 20 is between 16 and 25.
2x + 3 = x -4
what is the answer
Answer:
Step 1: Subtract x from both sides.
2x+3−x=x−4−x
x+3=−4
Step 2: Subtract 3 from both sides.
x+3−3=−4−3
x=−7
Answer:
x=−7
Sarah’s job at a cellphone store pays 6% commission on the sales she makes. She also makes $1400 base pay. What will Sarah’s total paycheck be if she had $4000 in sales?
Answer:
255
Step-by-step explanation:
I WILL GIVE BRAINLIEST! PLEASE ANSWER FAST!
Answer:
20
50+35=80
180-80= 100
100-80=20
9. The diameter of the Earth is 7899.83 miles from the North Pole to the South Pole and 7926.41 miles from opposite points at the equator.
a. Find the approximate surface area of Earth using each measure.
b. About 75% of Earth's surface is covered by water. Find the surface area of water on Earth, using the diameter of the Earth is 7926.41 miles from opposite points at the equator.
Answer:
a. The approximate surface area of the Earth based on the diameter of the Earth measured from the poles is approximately 1.961 × 10⁸ mi²
The approximate surface area of the Earth based on the diameter of the Earth measured from the equator is approximately 1.974 × 10⁸ mi²
b. The surface area of the water on Earth using the diameter of the Earth measured from opposite points of the equator is approximately 1.480 × 10⁸ mi²
Step-by-step explanation:
The given parameters are;
The diameter of the Earth measured from the North to the South pole, [tex]D_p[/tex] = 7899.83 miles
The diameter of the Earth measured from (across) opposite points of the equator, [tex]D_e[/tex] = 7926.41 miles
a. The surface area, [tex]A_E[/tex], of the Earth, taking the Earth as a perfect sphere, is given as follows;
A = 4 × π × r²
Where;
r = The radius of the sphere = 1/2 × the diameter of the sphere
For the diameter measured from poles, [tex]r_p[/tex] = [tex]D_p[/tex]/2 = (7899.83 miles)/2 = 3949.915 miles
The approximate surface area of the Earth based on the diameter of the Earth measured from the poles, [tex]A_{Ep}[/tex] = 4 × π × (3949.915 miles)² = 196058359.283 mi² ≈ 1.961 × 10⁸ mi²
For the diameter measured from equator, [tex]r_e[/tex] = [tex]D_e[/tex]/2 = (7926.41 miles)/2 = 3963.205 miles
The approximate surface area of the Earth based on the diameter of the Earth measured from the equator, [tex]A_{Ee}[/tex] = 4 × π × (3963.205 miles)² = 197379906.233 mi² ≈ 1.974 × 10⁸ mi²
b. The percentage of the surface area of the Earth covered by water ≈ 75%
The surface area of water on Earth using the diameter of the Earth = 7926.41 miles (the diameter measured from the equator), we have;
The area of the Earth with a diameter of 7926.41 miles was given as [tex]A_{Ee}[/tex] = 4 × π × ((7926.41 miles)/2)² = 197379906.233 mi²
The surface area of the water on Earth = 75% × The area of the Earth = 75/100 × 197379906.233 = 148034929.675 mi² ≈ 1.480 × 10⁸ mi²
Write in slope-intercept form an equation of the line that passes through the given points (4, 1), (8, 2)
The slope-intercept form of the line is [tex]y=\dfrac{1}{4}x[/tex].
Given:
A line passes through the two points [tex](4,1)[/tex] and [tex](8,2)[/tex].
To find:
The slope-intercept form of the line.
Explanation:
The slope-intercept form of a line is:
[tex]y=mx+b[/tex]
Where, [tex]m[/tex] is slope and [tex]b[/tex] is the y-intercept.
The line passes through the two points [tex](4,1)[/tex] and [tex](8,2)[/tex]. So, the equation of the line is:
[tex]y-y_1=\dfrac{y_2-y_1}{x_2-x_1}(x-x_1)[/tex]
[tex]y-1=\dfrac{2-1}{8-4}(x-4)[/tex]
[tex]y-1=\dfrac{1}{4}(x-4)[/tex]
Using the distributive property, we get
[tex]y-1=\dfrac{1}{4}(x)+\dfrac{1}{4}(-4)[/tex]
[tex]y=\dfrac{1}{4}x-1+1[/tex]
[tex]y=\dfrac{1}{4}x[/tex]
Therefore, the slope-intercept form of the line is [tex]y=\dfrac{1}{4}x[/tex].
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PLEASE HELP 20 POINTS!!!!!!!
What number is the next term in the number pattern? 2/5, 3/10, 6/15, 11/20, …
18/25
14/20
18/20
14/25
Answer:
18/25
Step-by-step explanation:
i dont have an explanation
Given constant temperature, P1 = 25 psia, P2 = 40 psia, and V1 = 30 cu in, what is V2 in cubic inches? Select one: a. 15 b. 17.5 c. 18.75 d. 33.33
Answer:
V2 = 18.75 cu in
Step-by-step explanation:
Given that:
Given constant temperature :
P1 = 25 psia, P2 = 40 psia, and V1 = 30 cu in,
Calculate v2
Using the relation :
Since Temperature T is constant ;
P1V1 = P2V2
25 * 30 = 40 * V2
750 = 40V2
V2 = 750 / 40
V2 = 18.75 cu in
HELP WILL MARK BRAINLIEST
Answer:
i think d
Step-by-step explanation:
im so sorry if this is wrong but im almost positive its d
please mark brainliest
HEY CAN ANYONE PLS PLS ANSWER DIS MATH PROBLEM!!!!!
Answer:
greater than 27 less than 48
Step-by-step explanation:
Austin correctly answered 92% of the questions on a geography quiz. Liz answered 47 of the 50 questions correctly.
Who earned the higher score? Compare their scores.
Austin answered 47 of the questions correctly, which is greater than 94%, so Liz earned the higher score.
Austin answered 47 of the questions correctly, which is less than 92%, so Liz earned the higher score.
Liz answered 47 of the questions correctly, which is less than 92%, so Liz earned the higher score.
Liz answered 47 of the questions correctly, which is greater than 92%, so Liz earned the higher score.
Answer:
So if you do the math liz got a 94 so two points higher than Austin so the answer is the last one
Step-by-step explanation:
Answer:d liz had the higher score
Step-by-step explanation:
calculator
What is the value of p?
I don’t know how to do this
Answer:
C.) 35
Step-by-step explanation:
Supplementary angles equal 180, therefore, the opposite side of both the angles 90 and 125, must be 180 minus that value.
180-125=55
180-90=90
Now we know that the two inside angles equal 55 and 90. Together, that's 145.
Since all the angles within a triangle equal 180, we subtract the two other angles to find p.
180-145=35
What is f(x) - g(x)
f(x)=x^2 + 2x - 5
g(x)= -3x^2 - 4x + 1
Answer:
f(x)=(−1,−6)
g(x)=(−2/3,7/3)
Step-by-step explanation:
What are we finding the vertex
Answer:
A. -2x^2-2x-4
Step-by-step explanation:
:D
Multiple Choice
What is the domain of the function below?
{(0, 2), (3, 1), (5,2), (8,4)}?
A. {1, 2, 4}
B. {0, 3, 5, 8}
C. {0, 1, 2, 3, 4, 5, 8}
D. {(0, 2), (3, 1), (5,2), (8,4)}
Domain is the x values.
The x values in the given function are: 0,3,5,8
The answer would be B. {0,3,5,8}
The expression 2a+3b gives the cost (in dollars) for a shirts and b pairs of pants at a garage sale. A. The cost for 1 shirt is $ and the cost for 1 pair of pants is $ . B. The total cost for 5 shirts and 5 pairs of pants is $ . Question 2 c. Is $20 enough to buy 7 shirts and 2 pairs of pants?
Answer:
Step-by-step explanation:
If 2a+3b gives the cost (in dollars) for a shirts and b pairs of pants at a garage sale
a) To get cost for 1 shirt and the cost for 1 pair of pants, we will substitute a = 1 abd b = 2 into the expression given
Cost = 2(1) + 3(2)
Cost = 2 + 6
Cost = $8
Hence cost for 1 shirt and the cost for 1 pair of pants is $8
b) For the total cost for 5 shirts and 5 pairs of pants;
a = 5 and b= 5
Cost = 2(5)+3(5)
Cost = 10 + 15
Cost = $25
Hence the total cost for 5 shirts and 5 pairs of pants is $25
c) To check whether $20 will be enough to buy 7 shirts and 2 pairs of pants, we will substitute a = 7 and b = 2 into the expression;
Cost = 2(7)+3(2)
Cost = 14 + 6
Cost = $20
Hence $20 will be enough to buy 7 shirts and 2 pairs of pants
please help me i will give you brainliest!
Answer:
the photo is un clear I can answer it but add a better photi
Answer:
y = [tex]\frac{1}{2}[/tex]x + 4
Step-by-step explanation:
y-intercept = 4
slope = [tex]\frac{1}{2}[/tex] (use rise over run to solve for slope)
x-intercept = -8
(The picture is a little blurry so this is the best I could make out of it)
Find factors of polynomial
A) 244 + 183
B) 4 + x
C) 82 − 56 + 7 − 49
plz answer properly
I will mark the person brainliest who answers properly
Step-by-step explanation:
the c is true
❤❤❤❤❤
What is the slope of the line with point (3,-5) and (-7,10)?
Answer:
-3/2
Step-by-step explanation:
10 -(-5)/-7-3
15/-10
-3/2
I need the value of X
Answer:
x=30
Step-by-step explanation:
So we know its a supplementary angle which is angles athat add up to 180 degrees since its a straight line.
Make an equation: 60+60+2x=180COmbine like terms
120+2x=180
subtract 120 on both sides
2x=60
x=30
120 pupils went on a feildtrip . 55% of the pupils were girls and the rest were boys. How many boys went on the trip?
Answer:
54 boys went in the trip
Step-by-step explanation:
55% of 120 is 66 and 66 minus 120 is 55
Answer:
number of boys are 54. ...
For his long distance phone service, dale pays a $6 monthly fee plus 8 cents per minute. Last month, Dale's long distance bill was $21.28. For how many minutes was dale billed?
Answer:
he was billed for 147 minutes
Step-by-step explanation:
I got it right
Question Andre bought 8 bagels and ate g of them. Sandra bought 20 bagels and ate of them. Who ate more bagels?
Answer:
no one ate any bagels apparently lol
Step-by-step explanation:
Help appreciated, thanks so much!
Answer:
r= -6
Step-by-step explanation:
p l e a s e h e l p . taking test rnnn:))) thanksssss will mark brainliest
Sara needs 1/3 of a yard of ribbon to make a bow. She has 10 yards of ribbon. How many bows can she make?
20 bows
30 bows
40 bows
50 bows
Answer:
30 Bows
Step-by-step explanation:
Every yard is 3 feet, and each bow calls for 1/3 of a yard, so a foot per bow.
So you can make 10 yards, 30 feet by multiplying by 3, and then its pretty straight forward from there. 30 / 1 = 30 Bows
Help i need help on this question plis
You continue shopping for your holiday feast. The price for a 5 lb. bag at H-E-B is $2.98. The price for a 10 Ib. bag at Kroger is $5.99. Which store has the best unit price for potatoes?
Answer:
$8.97 and no decimal include in itsolve the system of equation
2x-y-3z=20
3x+y+6z=4
x+2y+9z=-16
Find the total cost of buying a product that cost $12 if it is 25% off. DO NOT PUT A $. Only numbers.
Answer:
the answer will be 9 dollars
Explanation:
The discount of 25% off means you save 0.25*12 = 3 dollars, meaning the final cost is 12-3 = 9 dollars.
Or you can think of it like this: if you save 25%, then you still pay the remaining 75%. So 0.75*12 = 9 dollars is the total cost.
standard form of 80000
Answer:
8 × 10^4
Step-by-step explanation:
Count the number of zeros after 8.
Answer:
80,000= 8*10^4
Step-by-step explanation:
I hope this helps!!!!!