Answer:
YESSSSSS
Step-by-step explanation:
i myself skipped pre-algebra and let me tell you it was the best decision ever. pre-algebra is by far the easiest and probably the most useless math course followed by geometry/trigonometry.
Yes
I would because it is a great opportunity to be ahead for when you get in 9th grade
Write y = x + 7 in standard form using integers.
3x – 2y = 21
–2x – 3y = 21
–2x + 3y = 7
–2x + 3y = 21
Answer:
[tex]-2x+3y=21[/tex]
Step-by-step explanation:
The equation was given to us in slope-intercept form.
Thus;
[tex]y=\frac{2}{3}x+7[/tex]
We multiply each term by 3 to obtain;
[tex]3y=2x+21[/tex]
We add [tex]-2x[/tex] to both sides to obtain;
[tex]-2x+3y=21[/tex]
This equation is in the form;
[tex]ax+by=c[/tex] (standard form).
The correct choice is D.
Answer:
-2x+3y = 21
Step-by-step explanation:
We have given a equation in slope-intercept form .
y = 2/3x+7
We have to rewrite above equation in standard form.
The standard form of equation is :
Ax+By = C
Multiplying by 3 to both sides of above equation, we have
3y = 3(2/3x+7)
3y = 2x+21
Adding -2x to both sides of above equation, we have
-2x+3y = -2x+2x+21
-2x+3y = 21 which is standard form of given equation.
Use the graphing method to solve the system of linear equations:
y = -x + 3 and y = x - 1
A) (-1,2)
B) (0,3)
C) (1,0)
D) (2,1)
(AWNSWER GETS 80 POINTS)
Answer:
the asnwer will be 2,1
Step-by-step explanation:
The solution of the equations is (2,1)
What is graphing method?Finding the point of intersection of equations by plotting on the graph paper is called solving by graphing method.
How to solve the given equations?In the attached graph below,
The red line represents the equation y = -x + 3 The blue line represents the equation y = x - 1The point of intersection is clearly visible which is (2,1). This is the solution of the equations.The solution of the equations is (2,1)
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Can you guys help!! Have 8 more mins two finish
Answer:
60 / 120 is terminating, the rest are repeating.
Answer:
56/72 is repeating, 21/22 is repeating, 11/121 is repeating, and 60/120 is terminating
Step-by-step explanation:
A pitcher of lemonade was 7/8 full. Since then, they have sold 1/2 of a pitcher of lemonade. What fraction of a pitcher do they have left?
Answer:
3/8
Step-by-step explanation:
another way of writing 1/2 is 4/8, so now it should be easy. if you have 7/8 and sell 4/8 that leaves 3/8
Answer: 3/8
Step-by-step explanation:
add 5 to me. Then divide by 7. If you add 12 and then subtract 7, you get 10. What number am I?
30 is the answer :))))
A water trough has two congruent isosceles trapezoids as ends and two congruent rectangles as sides.
The exterior surface area of the trough is ________.
The volume of the trough is _____.
If a trough is emptied until the water level is even with the midsegment of the trapezoidal ends there will be ______ cubic feet of water left in the trough.
Answer:
Part a) The exterior surface area is equal to [tex]160\ ft^{2}[/tex]
Part b) The volume is equal to [tex]240\ ft^{3}[/tex]
Part c) The volume water left in the trough will be [tex]84\ ft^{3}[/tex]
Step-by-step explanation:
Part a) we know that
The exterior surface area is equal to the area of both trapezoids plus the area of both rectangles
so
Find the area of two rectangles
[tex]A=2[12*5]=120\ ft^{2}[/tex]
Find the area of two trapezoids
[tex]A=2[\frac{1}{2}(8+2)h][/tex]
Applying Pythagoras theorem calculate the height h
[tex]h^{2}=5^{2}-3^{2}[/tex]
[tex]h^{2}=16[/tex]
[tex]h=4\ ft[/tex]
substitute the value of h to find the area
[tex]A=2[\frac{1}{2}(8+2)(4)]=40\ ft^{2}[/tex]
The exterior surface area is equal to
[tex]120\ ft^{2}+40\ ft^{2}=160\ ft^{2}[/tex]
Part b) Find the volume
We know that
The volume is equal to
[tex]V=BL[/tex]
where
B is the area of the trapezoidal face
L is the length of the trough
we have
[tex]B=20\ ft^{2}[/tex]
[tex]L=12\ ft[/tex]
substitute
[tex]V=20(12)=240\ ft^{3}[/tex]
Part c)
step 1
Calculate the area of the trapezoid for h=2 ft (the half)
the length of the midsegment of the trapezoid is (8+2)/2=5 ft
[tex]A=\frac{1}{2}(5+2)(2)=7\ ft^{2}[/tex]
step 2
Find the volume
The volume is equal to
[tex]V=BL[/tex]
where
B is the area of the trapezoidal face
L is the length of the trough
we have
[tex]B=7\ ft^{2}[/tex]
[tex]L=12\ ft[/tex]
substitute
[tex]V=7(12)=84\ ft^{3}[/tex]
The bar graph and line plot show the same temperatures. Where should you look to find the least common temperature?
Answer:
Step-by-step explanation:
AThe shortest column of the line plot
BThe shortest bar of the bar graph
CThe column farthest to the left on the line plot
DThe average bar height of the bar graph
Answer:
The shortest column of the line plot
A right pyramid has a rectangular base that is 3 inches by 5 inches if the height of the pyramid is 8 inches, what is it’s volume ? HELP FAST PLEASE
Answer:
A) 40 in.^3
Step-by-step explanation:
volume = (1/3)(LWh)
volume = (1/3)(5 in.)(3 in.)(8 in.)
volume = 40 in.^3
Answer:
40.^3
Step-by-step explanation:
took the test
Through: (-4,-3), slope= 3/2
Answer:
[tex]\large\boxed{y+3=\dfrac{3}{2}(x+4)}[/tex]
Step-by-step explanation:
The point-slope form of an equation of a line:
[tex]y-y_1=m(x-x_1)[/tex]
We have
[tex]m=\dfrac{3}{2},\ (-4,\ -3)[/tex]
Substitute:
[tex]y-(-3)=\dfrac{3}{2}(x-(-4))\\\\y+3=\dfrac{3}{2}(x+4)[/tex]
Find y and x values please
Please help, I need these done today TT
1) Hilda is putting new tile in an area of her home. Part of the space is rectangular with a length of 10 feet and a width of 6 feet, and part of the space is triangular with a base of 4 feet and a height of 2 feet.
How many square feet of tile will Hilda need to cover the space?
2) Francine bought a TV that is 31 inches tall and 57 inches wide. She is going to mount it on the wall in her living room. The wall is 8 feet wide and 9 feet tall.
How many square inches of the wall will not be covered by the TV once it is mounted?
Answer:
Hilda needs 64 ft² of tile
8601 in² will be uncovered post mounting
Step-by-step explanation:
Ar=10•6=60 ft²
At=[4•2]/2=8/2=4 ft²
total area=Ar+At=60+4=64ft²
......
Atv=31•57=1767 in²
Aw=(12•8)•(9•12)=10368 in²
Au=Aw-Atv=10368-1767=8601 in²
Hilda will need 64 square feet of tile to cover the space. Francine will have 8601 square inches of the wall not covered by the TV once it is mounted.
To determine how many square feet of tile Hilda will need, let's calculate the area of both the rectangular and triangular parts separately and then sum them up. The area of the rectangle can be found by multiplying the length and the width, so we have:
10 feet * 6 feet = 60 square feet.
Next, we calculate the triangular area using the formula for the area of a triangle (A = base * height / 2), giving us:
4 feet * 2 feet / 2 = 4 square feet.
Adding both areas gives us a total of:
60 square feet + 4 square feet = 64 square feet needed for tiling.
For Francine's TV and the uncovered wall area, we first convert the wall measurements to inches (1 foot = 12 inches):
8 feet = 96 inches wide
9 feet = 108 inches tall
Then we calculate the area of the wall and subtract the TV's area:
Wall area: 96 inches * 108 inches = 10368 square inches
TV area: 31 inches * 57 inches = 1767 square inches
Uncovered wall area:
10368 square inches - 1767 square inches = 8601 square inches.
75% of b is 12?????????
Answer:
b=16
Step-by-step explanation:
12*100=1200
1200/75
------------------
16
Check
16*0.75=12
Solve this quadratic equation using the quadratic formula.
3x2 + 4x = 6
Answer: [tex]\bold{\dfrac{-2\pm \sqrt{22}}{3}}[/tex]
Step-by-step explanation:
[tex]3x^2+4x-6=0\quad \rightarrow \quad a=3,\ b=4,\ c=-6\\\\\\\text{Quadratic formula is: }x=\dfrac{-b\pm \sqrt{b^2-4ac}}{2a}\\\\\\x=\dfrac{-(4)\pm \sqrt{(4)^2-4(3)(-6)}}{2(3)}\\\\\\.\ =\dfrac{-4\pm \sqrt{16+72}}{2(3)}\\\\\\\\.\ =\dfrac{-4\pm \sqrt{88}}{2(3)}\\\\\\\\.\ =\dfrac{-4\pm 2\sqrt{22}}{2(3)}\\\\\\\\.\ =\dfrac{-2\pm \sqrt{22}}{3}[/tex]
How Would I Find The Answer ?
Answer: B. 34°
Step-by-step explanation:
∠RQS + ∠SQT = ∠RQT
[tex]\bigg(\dfrac{1}{2}x+4\bigg)+\bigg(\dfrac{3}{4}x-6\bigg)=2x-47\\\\\\.\qquad\qquad\qquad\dfrac{5}{4}x-2=2x-47\\\\\\.\qquad\qquad\qquad\quad -2=\dfrac{3}{4}x-47\\\\\\.\qquad\qquad\qquad\qquad 45=\dfrac{3}{4}x\\\\\\.\qquad\qquad\qquad\qquad 180=3x\\\\\\.\qquad\qquad\qquad\qquad 60=x[/tex]
[tex]\angle RQS=\dfrac{1}{2}x+4\\\\.\qquad=\dfrac{1}{2}(60)+4\\\\.\qquad=30+4\\\\.\qquad=34[/tex]
solve this equation
156=2b+5(-8-6b)
Answer:the answer is -7
Step-by-step explanation:
156=2b+5(-8-6b)
2b+5(-8-6b)
expand 2b+5(-8-6b) ---> -28b-40
-28b-40=156
add 40 to both sides
-28b-40+40=156+40
simplify
-28b=196
divide both sides by -28
(-28b/-28b) = (196/-28b)
simplify
b=-7
How many 3 letter words can be made from 4 letters “FGHI” if repetition is allowed and if repetition isn’t alllowed ?
When repetition is allowed, there can be 64 different 3-letter words made from the letters 'FGHI'. When repetition is not allowed, there can be 24 different 3-letter words made from those letters.
Explanation:In this question, we are asked to find the number of 3-letter words that can be made from the letters 'FGHI' with and without repetition. When repetition is allowed, each letter can be chosen independently for each position, so we have 4 choices for each position. Therefore, the total number of words is 4*4*4 = 64. When repetition is not allowed, each letter can only be used once, so we have 4 choices for the first position, then 3 choices for the second position, and finally 2 choices for the third position. Therefore, the total number of words is 4*3*2 = 24.
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Use formula p=2l+2w find the perimeter of a rectangle with a length 8.3 ft and width of 15.8 ft
Answer:
p = 48.2
Step-by-step explanation:
p = 2L + 2w
p = 2(8.3) + 2(15.8)
p = 16.6 + 31.6
p = 48.2
Answer:
P = 48.2 ft
Step-by-step explanation:
P =2l+2w
Given: l = 8.3 ft and w = 15.8 ft
Plug in
P =2(8.3) + 2(15.8)
P = 16.6 + 31.6
P = 48.2 ft
BASIC MATH PLEASE HELP
Answer:
8
Step-by-step explanation:
6 / .75(3/4)
find the area of the shaded circle.give your answer in 3 significant numbers
Answer:
116 cm²
Step-by-step explanation:
The area of a circle = πr² ← r is the radius
shaded area = external area - internal area
= π × 6.5² - π × 2.3²
= π( 42.25 - 5.29)
= π × 36.96 ≈ 116 cm²
Answer:
116.113 cm²Step-by-step explanation:
Area of a circle = πr²
Shaded area = External area - Internal area
= π × 6.5² - π × 2.3²
= π × (42.25 - 5.29)
= π × 36.96 = 116.113 cm²
Do I multiply all together, please
Answer:
40 m
Step-by-step explanation:
A= b(h)
A= 8(5)
A= 40 m
Answer:
It is a parallelogram and the area is 40.
Step-by-step explanation:
The area of a parallelogram is a=bh.
The base is 8 and the height is 5. All you do is times 8 and 5 to get 40.
Rewrite the quadratic function in vertex form.
Y=3x^2-12x+4
Answer:
[tex]\large\boxed{y=3(x-2)^2-8}[/tex]
Step-by-step explanation:
The vertex form of an equation of a parabola y = ax² + bx + c:
[tex]f(x)=a(x-h)^2+k[/tex]
(h, k) - vertex
[tex]h=\dfrac{-b}{2a},\ k=f(h)[/tex]
We have the equation:
[tex]y=3x^2-12x+4\\\\a=3,\ b=-12,\ c=4[/tex]
Substitute:
[tex]h=\dfrac{-(-12)}{2(3)}=\dfrac{12}{6}=2\\\\k=f(2)=3(2^2)-12(2)+4=3(4)-24+4=12-24+4=-8[/tex]
Finally:
[tex]y=3(x-2)^2+(-8)=3(x-2)^2-8[/tex]
How many liters equal 1052cm3?
Answer:
[tex]\large\boxed{1,052\ cm^3=1.052\ liters}[/tex]
Step-by-step explanation:
[tex]1Liter=1dm^3\\\\1dm=10cm\to1dm^3=(10cm)^3=1,000cm^3\\\\1052\ cm^3=\dfrac{1,052}{1,000}dm^3=1.052\ dm^3=1.052\ Liters[/tex]
is 3.14 a terminating decimal?
Answer:
Pi is not a terminating decimal
Step-by-step explanation:
1234567890
Answer:
Yes!
Step-by-step explanation:
3.14 ends and it does not repeat. Otherwise it would be a repeating decimal.
there are 60 girls and 45 boys who want to participate in a co-ed basketball tournament. if each team must have the same number of girls and boys, what is the greatest number of team that csn enter? how many girls and.boys would be on each of those teams?
Answer 1 the greatest of team that can enter are—— teams
Answer 2, there would be—- girls and —-boys on each team.
Answer:
15 teams, 4 girls and 3 boys on each team.
Step-by-step explanation:
What's the greatest common multiple of 60 and 45? It's 15.
This is the greatest number of teams that can be formed.
60/15 = 4; thus, there will be 4 girls on each team.
45/15 = 3; thus, 3 boys on each team
The greatest number of co-ed basketball teams that can be formed with an equal number of girls and boys is 3, with each team consisting of 4 girls and 3 boys.
To determine the greatest number of co-ed basketball teams that can enter the tournament with an equal number of girls and boys, you need to find the greatest common divisor (GCD) of the number of girls and boys. In this case, we have 60 girls and 45 boys. The GCD of 60 and 45 is 15, which means the largest number of teams that can be formed where each team has the same number of girls and boys is 15 (since 60 \/ 15 = 4 girls per team and 45 \/ 15 = 3 boys per team).
Answer 1: The greatest number of teams that can enter are 3 teams.
Answer 2: There would be 4 girls and 3 boys on each team.
Jacintas teacher asks her to find the tangent of angle y. what is her error
Answer:
what is her error?
Step-by-step explanation:
Answer:
Do you have a picture?
Solve the inequality
7x + 3 > 10
A x>1
B x<1
C x>=1
D x> 13/7
Solve the inequality
-3 + 5x < 7x - 5
A x>4
B x<4
C x>1
D x<1
Solve the inequality
-2x + >= 3x + 20
A x=<15
B x=<3
C x>= 3
D x=< -3
Answer:
[tex]\large\boxed{Q1.\ x>1}\\\boxed{Q2.\ x>1}\\\boxed{Q3.\ x\leq-3}[/tex]
Step-by-step explanation:
[tex]Q1.\\7x+3>10\qquad\text{subtract 3 from both sides}\\\\7x+3-3>10-3\\\\7x>7\qquad\text{divide both sides by 7}\\\\\dfrac{7x}{7}>\dfrac{7}{7}\\\\\boxed{x>1}\\\\Q2.\\-3+5x<7x-5\qquad\text{add 3 to both sides}\\\\-3+3+5x<7x-5+3\\\\5x<7x-2\qquad\text{subtract 7x from both sides}\\\\5x-7x<7x-7x-2\\\\-2x<-2\qquad\text{change the signs}\\\\2x>2\qquad\text{divide both sides by 2}\\\\\dfrac{2x}{2}>\dfrac{2}{2}\\\\\boxed{x>1}[/tex]
[tex]Q3.\\-2x+5\geq3x+20\qquad\text{subtract 5 from both sides}\\\\-2x+5-5\geq3x+20-5\\\\-2x\geq3x+15\qquad\text{subtract 3x from both sides}\\\\-2x-3x\geq3x-3x+15\\\\-5x\geq15\qquad\text{change the signs}\\\\5x\leq-15\qquad\text{divide both sides by 5}\\\\\boxed{x\leq-3}[/tex]
x>1
x>1
X>-3
Step-by-step explanation:
How can i do this one ☝️
Hey there!
Let's start by adding 5 to both sides. This eliminates the -5.
1 = r/20
Now to solve for r we can multiply both sides by 20.
20 = r
Check
-4 = 20/20 - 5
-4 = 1 - 5
-4 = -4
Your answer is r = 20.
Hope this helps!
Answer:
20Step-by-step explanation:
-4 = [tex]\frac{r}{20}[/tex] - 5
⇒ -4 + 5 = [tex]\frac{r}{20}[/tex]
⇒ 1 = [tex]\frac{r}{20}[/tex]
⇒ 1 × 20 = r
⇒ 20 = r
Michelle collected data on the weight of 200 apples at the farmer's market. Most weighed 0.30 –.40 pounds, but three weighed over a p
ound each. Michelle identified this as a striking deviation. What should she do with it?
A) Ignore the data.
B) Do not include the striking deviation in the data display.
C) Ignore the striking deviation because it is so far from the average.
D) Include the striking deviation because it may explain an unusual occurrence.
Answer:
Step-by-step explanation:
include the striking deviation because it may explain an unusual occurrence is correct. Striking deviations or outliers can be useful in describing data set.
August is making dinner for 8 people. She opens 7 cans of soup, how much soup will each person get? Use numbers and words to explain your awnser
Answer:7/8
Step-by-step explanation:
7 divided by 8 = 7/8
if you split that with 8 people, you multiply 7/8 and 8, and you'll get 7, which is the number of soup cans you started with.
Find the inverse of y=2x^2+2
Answer:
Step-by-step explanation:
Plug x for y and y for x.
y = 2x^2 + 2
x = 2y^2 + 2
Then isolate the y variable.
x - 2 = 2y^2
sqrt(x - 2) = 2y
(sqrt(x - 2))/2 = y