which phrase describes the algebraic expression x-2.5?
Answer:
Step-by-step explanation:
This expression is a binomial; it has two terms.
Answer:
x less 21.5
Step-by-step explanation:
Given : the algebraic expression x - 21.5
a. 21.5 decreased by x
the expression becomes 21.5 - x
b. x more than 21.5
more than means we add , so expression becomes 21.5 +x
c. 21.5 minus x
For minus we use subtraction symbol,
so the expression becomes 21.5 -x
d. x less 21.5
x less 21.5 , we subtract 21.5
so the expression becomes x - 21.5 . that is the given expression
Ellen is making smoothies. The recipe calls for 1 and 1/4 cups of strawberries. How many cups of strawberries, written as a fraction greater than one, are used in the recipe?
Answer:
the number of cups of strawberries needed in the recipe is ⁵/₄
Step-by-step explanation:
Given;
cups of strawberries needed for the smoothies = 1 and 1/4 cups
To obtain the number of cups of strawberries needed in the recipe as a single fraction, the given mixed fractions will be converted into an improper fraction.
Note: Improper fractions are always greater than 1
Number of cups of strawberries [tex]=1 + \frac{1}{4} = \frac{4 + 1}{4} = \frac{5}{4}[/tex]
Therefore, the number of cups of strawberries needed in the recipe is ⁵/₄
Three vertices of a rectangle are shown on the grid.
What are the coordinates of the missing vertex? Enter the answer in the boxes.
PLEASE HELP IM SUPER CONFUSED:(
Answer:
5,8
Step-by-step explanation:
3 800 millimeters expressed in metres is
Answer:
3.8 meters
Step-by-step explanation:
Answer:
hi sorry i just want points YOSHIII :3
Step-by-step explanation:
What is m∠N?
A. 19°
B. 68°
C. 95°
D. 112°
x+2y=8
-x+3y=17
método de reducción ¿alguien la sabe?
Answer:
x=-2
y=5
Step-by-step explanation:
x+2y=8 equation-1
-x+3y=17 equation-2
5y=25
Both side divided 5,
y=5
Equation-1, y=5
x+2(5)=8
x+10=8
Both side -10
x+10-10=8-10
x=-2
Equation-2, y=5
-x+3(5)=17
-x+15=17
Both side -15
-x+15-15=17-15
-x=2
x=-2
ok here yall go and thanks for the help
Answer:
length:5
width:2
Hight:2
value:20
Step-by-step explanation:
The volume is 29 because length×width×hight=value so 5×2×2=20
The lifespans of gorillas in a particular zoo are normally distributed. The average gorilla lives 16 years, the
standard deviation is 1.7 years.
Use the empirical rule (68 - 95 - 99.7%) to estimate the probability of a gorilla living longer than 14.3
years.
Percent ____
Answer:
68%
Step-by-step explanation:
Empirical rule formula
= 68% of data falls within 1 standard deviation from the mean - that means between μ - σ and μ + σ .
95% of data falls within 2 standard deviations from the mean - between μ – 2σ and μ + 2σ .
99.7% of data falls within 3 standard deviations from the mean - between μ - 3σ and μ + 3σ .
From the above question,
Mean = 16 years
Standard deviation = 1.7 years
Score = 14.3 years
We have to find the number of standard deviation to determine the percentage
Hence,
14.3 = 16 - 1.7x
Collect like terms
1.7x = 16 - 14.3
1.7x = 1.7
x = 1.7/1.7
x = 1
This means the data falls within 1 standard deviation from the mean hence, the probability of the gorilla living longer than 14.3 years is 68%
Pls help a girl out
Answer:
m[A is 30
m[B is 60
m[B is 90
If y = mx, and y is 12 when x is 4, then what is the constant of proportionality in this equation?
Answer:
3
Step-by-step explanation:
Given
y = mx ( m is the constant of proportionality )
Given y = 12 when x = 4 , then
12 = 4m ( divide both sides by 4 )
3 = m ← constant of proportionality
Answer:
m = 3
Step-by-step explanation:
Find the constant of proportionality by plugging in x and y into the equation, and solving for m
y = mx
12 = m(4)
Divide each side by 4
3 = m
So, the constant of proportionality is 3
Plz help! It’s due soon!!!
Will mark brainliest if correct!
Answer:
14)A
15)J
Step-by-step explanation:
Identify the type of slope of the graph
please help !
Answer:
m=[tex]-\frac{1}{2}[/tex]
Step-by-step explanation:
help pls and thank uu:)
What is the slope of the line that contains the points (-1, 2) and (4,3)? O A. - 1/3 O B. 011 O c. 5 O D. -5
Answer:
1/5
Step-by-step explanation:
Answer:
-3/19
Step-by-step explanation:
Given data
We have the coordinates
(-1, 2) and (4,3)
x1=-1
y1=2
x2=4
y2=3
The expression for the slope is given as
Slope= y2-y1/x2-x1
Substiute
Slope= 3-2/4-(-1)
Slope= 1/4+1
Slope= 1/5
Hence the slope is 1/5
Using n = 3.14, find the area of a circle with a radius of 16.
Round your answer to the nearest hundredth.
HELPPP
Answer:
803.84=A
Step-by-step explanation:
The area of a circle can be found by using the equation [tex]\pi r^{2}[/tex]=A.
[tex]\pi r^{2}[/tex]=A
[tex](3.14)(16^{2})[/tex]=A
(3.14)(256)=A
803.84=A and the units are, how ever the radius is measured cubed
In ΔABC, ∠C is a right angle. Find the remaining sides and angles. Round your answers to the nearest tenth.
b= 20, c=40
Answer:
The remaining side and angles are [tex]a = 20\sqrt{3}[/tex], [tex]\angle A = 60^{\circ}[/tex] and [tex]\angle B = 30^{\circ}[/tex].
Step-by-step explanation:
According to the information given on statement, we are in front of a right triangle because [tex]\angle C[/tex], opossite to side [tex]c[/tex], is a right angle. Hence, [tex]c[/tex] is the hypotenuse of the right triangle and [tex]b[/tex], a leg. The missing length can be calculated by the Pythagorean Theorem:
[tex]a = \sqrt{c^{2}-b^{2}}[/tex] (1)
If we know that [tex]c = 40[/tex] and [tex]b = 20[/tex], then the length of the missing leg is:
[tex]a = \sqrt{c^{2}-b^{2}}[/tex]
[tex]a = 20\sqrt{3}[/tex]
Lastly, we find the value of the missing angles by means of direct and inverse trigonometric relations:
Angle A
[tex]\angle A = \tan^{-1}\left(\frac{a}{b} \right)[/tex] (2)
Angle B
[tex]\angle B = \tan^{-1} \left(\frac{b}{a} \right)[/tex] (3)
If we know that [tex]a = 20\sqrt{3}[/tex] and [tex]b = 20[/tex], then the values of the missing angles are, respectively:
Angle A
[tex]\angle A = \tan^{-1}\left(\frac{a}{b} \right)[/tex]
[tex]\angle A = 60^{\circ}[/tex]
Angle B
[tex]\angle B = \tan^{-1} \left(\frac{b}{a} \right)[/tex]
[tex]\angle B = 30^{\circ}[/tex]
The remaining side and angles are [tex]a = 20\sqrt{3}[/tex], [tex]\angle A = 60^{\circ}[/tex] and [tex]\angle B = 30^{\circ}[/tex].
Find Equivalent Expression
1/2 (4x + 4)
x + 4
2x + 2
2x + 8
4x + 4
Answer:
2x+2
Step-by-step explanation:
hello :
1/2 (4x + 4) =(1/2) (4x + (1/2) (4) = 2x+2
Write 4.015 105 as an ordinary number
A.40,150
B.41,5001
C.401,500
D.415,000
Leroy uses 20 pounds of fertilizer to cover up 4000 ft.² of a salon and 50 pounds to cover up 10,000 ft.² how much does he need to cover his entire yard which has an area of 26,400 ft.²
Answer:
5,280,000
Step-by-step explanation:
He uses 200 ft to cover up 1 pound. To find how much he uses for 26,400. You'll multiply 200 times 26400
Which expression is equivalent to (o)(0)
0000000)?
0 131
13j
O i+ 13
Answer:
[tex]j^{13}[/tex] is correct. This expression is showing j to the 13 power.
The equivalent expression is [tex]j^{13}[/tex]
Option C is the correct answer.
We have,
The expression:
j (j) (j) (j) (j) (j) (j) (j) (j) (j) (j) (j) (j)
There are 13 j's so,
This can be written as,
[tex]j^{13}[/tex]
Thus,
The equivalent expression is [tex]j^{13}[/tex]
Learn more about expressions here:
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On a scale drawing, a building is 5 1/2 inches tall. If the scale drawing is 1 inch. : 8 inch tall is the building?
Answer:
44 inches
Step-by-step explanation:
Given that :
Scale of drawing = 1 inch : 8 inches
Height of building in drawing = 5 1/2 inches
Using the scale provide for the drawing, the actual height of the building is :
Height of building in drawing * 8 inches
5 1/2 * 8
5.5 * 8 inches
= 44 inches
A box contains 6 black socks and 4 red socks. What is the probability of picking two black socks from the bag without replacement? What is the answer in simplest form?
Answer:
9/25
Step-by-step explanation:
Our box contains 10 socks. (6, which are black and 4 which are red)
Probability of picking 1 black sock will be 6/10
Number of ways it can occur / Total number of outcomes.
In this question we pick two socks, one black firstly and another black, in the second turn. When we say AND, it means intersection
P (B₁ ∩ B₂) = 6/10 . 6/10
When the events are independent, the probability of the intersection will be the product of the probabilities,
P (B₁ ∩ B₂) = 36/100 = 9/25
Question 2 of 10
What is the area of the triangle below?
No links please
Ruby is building a pentagon-shaped garden and a hexagon-shaped garden.
.the perimeter of the pentagonal garden is 47 1/2ft
.The perimeter of the hexagonal garden is 61 1/2ft
Witch statement is false about this scenario?
A) the equation to find the length of each side of the pentagonal garden is 6x=47 1/2
B) The length of each side of the pentagonal garden 9 1/2 ft
C) The equation to find the length of each side of the hexagonal garden is 6x=61 1/2
9514 1404 393
Answer:
A
Step-by-step explanation:
If x is the side length of the regular pentagon, the perimeter is the sum of its 5 side lengths: 5x. To find the side length, we can use the formula that sets this equal to the known perimeter:
5x = 47 1/2 . . . . . . mismatch with statement A
Statement A is false.
What is the square root of -1?
Answer:
Step-by-step explanation:
B, i
PLZ ANSWER FAST WILL GIVE BRAINLIEST Find the value of x.
148
Select the number that is a solution to the inequality t > 6.
A 2
B 6
C 5.2
D 6.01
E 0.6
Answer:
D. 6.01
Step-by-step explanation:
6.01 is greater than six.
Answer: D
Step-by-step explanation:
“>” means greater than. So, T has to be bigger than 6. 6.01 is bigger.
Pls help me it’s for math
Answer and Step-by-step explanation:
1.
First, move all the points of the triangle to the right by 4 units. After, move all the points of the triangle down by 4 units.
2. For all of the x-values, make them negative since we are going across the y-axis. The Y-values will be the same.
#teamtrees #PAW (Plant And Water)
HURRY WILL MAKE BRAINLEST!! circle F is shown below. EB is a diameter and the radius is 3 units. Choose the correct
arc length determined by the central angle given
Answer:
Arc length is equal to [tex]\theta r[/tex] where [tex]\theta[/tex] is the angle in radians and [tex]r[/tex] is the radius.
Question 1:
[tex]\frac{\pi}{2}=\frac{\pi}{6}\times3[/tex]
So the angle is CFD.
Question 2:
[tex]\pi=\frac{\pi}{3}\times3[/tex]
So the angle is AFE.
Question 3:
[tex]2\pi=\frac{2\pi}{3}\times3[/tex]
So the angle is AFB.
Question 4:
[tex]\frac{3\pi}{4}=\frac{\pi}{4}\times3[/tex]
So the angle is BFC.
The drama club at Northside High School needs to raise at least $350 to purchase new props and costumes for their upcoming production of Annie. They need to
determine how many boxes of donuts (2) and bags of cookies (Y) to sell. They will earn $3 profit on each box of donuts and $1 profit on each bag of cookies.
Which could not be a way to earn enough money?
seling 25 boxes of donuts and 290 bags of cookies
selling 30 boxes of donuts and 260 bags of cookies
selling 45 boxes of donuts and 220 bags of cookies
selling 60 boxes of donuts and 160 bags of cookies
Answer:60 donut boxes and 160 cookies
Step-by-step explanation:
Multiply the boxes of donuts by $3, multiply the cookies by $1, add those two answers together to see if they equal at least 350
An expression is a way of writing a statement with more than two variables or numbers with operations such as addition, subtraction, multiplication, and division.
The option that can not be a way to earn enough money is
Selling 60 boxes of donuts and 160 bags of cookies.
Option D is the correct answer.
What is an expression?An expression is a way of writing a statement with more than two variables or numbers with operations such as addition, subtraction, multiplication, and division.
Example: 2 + 3x + 4y = 7 is an expression.
We have,
Amount needed to earn = $350 or more
Profit from a box of donuts = $3
Profit from a box of cookies = $1
Now,
Selling 25 boxes of donuts and 290 bags of cookies.
= 25 x 3 + 290 = 75 + 290 = $365
Selling 30 boxes of donuts and 260 bags of cookies.
= 30 x 3 + 260 = $350
Selling 45 boxes of donuts and 220 bags of cookies.
= 45 x 3 + 220 = 135 + 220 = $355
Selling 60 boxes of donuts and 160 bags of cookies.
= 60 x 3 + 160 = 180 + 160 = $340
Thus,
The option that can not be a way to earn enough money is
Selling 60 boxes of donuts and 160 bags of cookies.
Option D is the correct answer.
Learn more about expressions here:
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