Answer:
-0.4
Step-by-step explanation:
3d-4 where d=1.2
substitute 1.2 for d and solve
3(1.2)-4
3.6-4= -0.4
-0.4 is the value of expression 3d-4 when d is 1.2
What is Expression?An expression is combination of variables, numbers and operators.
The given expression is 3d-4
Three times of d minus four
d is the variable in the expression and minus is the operator
We need to find the value of expression when d is 1.2
Substitute d =1.2 in the expression
3(1.2)-4
Three times of one point two minus four
3.6-4
-0.4
Hence, -0.4 is the value of expression 3d-4 when d is 1.2
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Is the ratio 4.2:1.5 proportional to the ratio12.6:4.5? Explain.
Answer:
No
Step-by-step explanation:
All the numbers have to be multiplied by the same amount for it to be proportional
A proportional amount to 4:2:1:5 would be 12:6:3:15
They have all been multiplied by the same number 3
Answer:
Yes, the ratio is proportional
Step-by-step explanation:
given 4.2 : 1.5 =? 12.6 : 4.5 is it proportional
it must follow the means extremes property
[tex]\frac{a}{b}[/tex] = [tex]\frac{c}{d}[/tex]
a*d = b*c, so let's plug in the values
[tex]\frac{4.2}{1.5}[/tex] =? [tex]\frac{12.4}{4.5}[/tex]
(4.2)*(4.5) =? (1.5)*(12.6)
18.9 = 18.9 which is true; therefore the ratio is proportional
4 (t – 1) for t = 7
PLZ HELP ASAP
4(t-1)
4(7-1)
4(6)
=24
The answer is 24.
Answer:
24
Step-by-step explanation:
Plug in the value of t: 4(7 - 1)We can solve this two ways: one way is doing the distributed property, the other is PEMDAS. For now, let's use the distributed property (the other person who answered used PEMDAS)4 × 7 = 284 × 1 = 4Put them together: 28 - 428 - 4 = 24I hope this helps!
2p-7
make p the subject
Answer:
making letters subject is only possible
with equations but not expression.
So the question has no solution.
Ashley calculates her salary (vase and commission) for the year y using a model y = 0.2x + 25,000; where x represents her total sales for the year. What is the meaning of the y-intercept in the model
A) the y-intercept represents Ashleys base play
B) the y intercepts represents Ashleys commission pay
C) the y-intercept represents asleys total sales for the year
D) the y-intercept reperesents the highest salary Ashley can earn
im really struggling with this one
Answer:
A)
Step-by-step explanation:
The y-intercept represents Ashleys base play
Best,
SunflowerJada
Is this graph a function or not a function
Answer:
In the graph of a circle, we can easily draw a straight vertical line passing through its center. This will hit the top and the bottom of the shape. Since this line hits two points, a circle's graph is not a function. We can also observe the equation of a circle.
Answer:
No
Step-by-step explanation:
Do a vertical line test.
First, put your pencil or ruler up against the screen.
Move it down the graph and if there are two points in one x point, it is not a function. For example, look at 0, 3 and 0, -2.5. They share the same x point.
Therefore, it is not a function.
A turtle is 20 5/6 inches below the surface of a pond. It dives to the depth of 32 1/4 inches. What is the change in the turtle's position? Group of answer choices
(i know the answer i just need to know if its negitive or postive )
Answer:
negative
Step-by-step explanation:
I'm pretty sure its negative because the turtle is going under!
Answer:
- 11 1/4 inStep-by-step explanation:
Initial position: - 20 5/6 inFinal position: - 32 1/4 inChange in position:
- 32 1/4 - (-20 5/6) = - 32 1/4 + 20 5/6 = - (11 + 5/4 - 5/6) =- (11 + 15/12 - 10/12) =- 11 3/12 = - 11 1/4 in4 A bricklayer lays 1500 bricks in an 8-hour day. Assuming he continues to
work at the same rate, calculate:
a how many bricks he would expect to lay in a five-day week
b how long to the nearest hour it would take him to lay 10000 bricks.
Answer:
answer of a is 7500and the answer of b is53 hours
What is y in this situation?
Answer: y would be -5
Step-by-step explanation:
It takes Asher 12 minutes to ride a roller coaster four times. Write an equation to represent a proportional relationship between the number of rides in total amount of time
Answer:
4x=12
Step-by-step explanation:
8) Find the are of the rregular shape.
3 ft.
3 ft.
6 ft.
9 ft.
6 ft.
9 ft.
Answer:
63 ft squared
Step-by-step explanation:
3x3=9 for top square
9*6=54 for bottom one
54+9=63
Math Problem, Please Help! please please please
Answer: The width is 8 inches
Step-by-step explanation:
Trust me lol also 8 gose into both 96 and 12
Draw the triangle with the given vertices. Multiply each coordinate of the vertices by 3, and then draw the new triangle.
(-3,2), (1, 2), (1,-4)
Answer:
(-9,6), (3,6), (3,-12) The dilation is an enlargement.
Step-by-step explanation:
-3x3=-9
2x3=6
1x3=3
2x3=6
1x3=3
-4x3=-12
Lol i need help it’s 1am and i don’t get this it’s due tmr please help lol
Answer:
which question do you need help with?
Step-by-step explanation:
Perfect Purple Paint is made by mixing 3 cups blue paint to 5 cups red paint How many cups of blue paint would be needed if you have 25 cups of red paint to
make Perfect Purple Paint?
#1 - Write a conditional statement for this Venn diagram (pic attached)
A. Red is a color
B. If it is red, then is is a color.
C.It is red, if and only if it is a color.
D.If it is a color, it is red.
Answer:
it might be A im a little confused but try A
!!!HELP ME WITH THIS QUESTION PLEASE!!!
9514 1404 393
Answer:
A. {1, 7, 11}
Step-by-step explanation:
The constant in the equation is 1, so that is the value when x=0. No answer choice can be correct unless it includes the value 1. The only viable choice is A.
_____
If you want to go to the trouble to evaluate the expression for the different values of x, you can. It often works well to rewrite the expression to "Horner form":
(2x -1)x +1
For x = -2, this is (2(-2) -1)(-2) +1 = (-5)(-2) +1 = 11
For x = 0, this is 1
For x = 2, this is (2(2) -1)(2) +1 = (3)(2) +1 = 7
So, the range for the given domain is {1, 7, 11} . . . . . matches choice A
Find each numbered angle measure:
Answer:
m∠1=77°
m∠2=36°
m∠3=30°
Step-by-step explanation:
First, find angle 1 by adding 66 and 37 and subtracting them from 180 because there are 180 degrees in an angle.
180-(66+37)=77°
You can then find angle 2 by finding the other angle not given. You can find this angle by subtracting 77 from 180, giving you 103. To find angle 2, add 103 and 41 and subtract them from 180.
180-(103+41)=36°
You can then find angle 3 by adding the angle 103 and the angle 47, and subtracting them from 180
180-(103+47)=30°
-21 = 2 - n/3 SHOW ALL WORK
Answer:Combine multiplied terms into a single fraction
−
2
1
=
2
−
1
⋅
3
-21=2-1 \cdot \frac{n}{3}
−21=2−1⋅3n
−
2
1
=
2
+
−
Step-by-step explanation:
See attachment for math work and answer.
What is the equation of the line that passes through the point (8,-4) and has a slope of 1/2
The equation of the line that passes through the point (8,-4) and has a slope of 1/2 is; y = -x/2 - 2
What is the Point-slope form?The equation of the straight line has its slope and given point.
If we have a non-vertical line that passes through any point(x1, y1) and has a gradient m. then general point (x, y) must satisfy the equation
y-y₁ = m(x-x₁)
This is the required equation of a line in a point-slope form.
We know that Point-Slope Form:
y - y₁ = m(x- x₁)
Where x₁ - x coordinate and y₁ - y coordinate
m - slope
Point (8,-4)
Then Slope m = 1/2
Now the equation as;
y + 4 = 1/2(x - 8)
y = -1/2(x -4) - 4
y = -x/2 + 2 - 4
y = -x/2 - 2
Hence, the equation of the line that passes through the point (8,-4) and has a slope of 1/2 is; y = -x/2 - 2
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3. Gavin deposited $200 into his savings account that is compounded semi-annually at an interest rate of 9%. Gavin hoped he would have enough money in 8 years to buy a $400 gaming console for college. Is Gavin correct? Write and solve an equation, showing your work to justify your answer.
I just need the equation.
His answer was correct:
(200*0.09)=18
18*16=288
200+288=488
Answer:
Was it right?? Im doing this problem rn
Step-by-step explanation:
Find the measure of ∠DBF (HURRY ASAP)
Answer:
This graph is kind of funky, but it should be 70
Step-by-step explanation:
23+47=70
Please mark Brainliest!!!
Answer:
70
Step-by-step explanation:
PLEASE I NEED ANSWERS!!!
If 1 yard = 3 feet and 1 mile = 5,280 feet, how many yards are there in 5 miles? (3 points)
A. 79,200 yards
B. 26,400 yards
C. 8,800 yards
D. 352 yards
Answer:
there are 8800 yards in 5 miles
Step-by-step explanation:
there are 1760 yards in a mile and multiply that by 5 to get 8800
its C because if you multiply 5280 by 5 is 26400 feet in 5 miles but we need yards so then we divide 26,400 by 3 witch is
Awnser: 8,800 yards or C
round 0.05 to the nearest tenth as a percentage and it's not 5
Answer: 0.1
Explanation: If the last digit in the fractional part of 0.05 is 5 or more and the first digit in the fractional part is less than 9, then add 1 to the first digit of the fractional part and remove the second digit.
what is the answer?
Answer:
2 hours
Step-by-step explanation:
two hours is the closest number to 0 they all reach.
Nathan and Jordan design surveys to determine the average amount of time bicyclists in a race spend training each
week. Nathan surveys every fifth bicyclist crossing the finish line after a race. Jordan surveys the first five bicyclists to
finish the race. Which best explains which sample is likely to be the most valid?
Nathan's because his sample was more random
O Jordan's because his sample was more random
Nathan's because his sample contained elements of the population
Jordan's because his sample contained elements of the population
Answer: Nathan's because his sample was more random
Step-by-step explanation:
Nathan's survey could be described as a Systematic random sampling technique whereby every 5th observation taken as a sample from the population. With these technique we have a more random observation than with
Answer:
A
Step-by-step explanation:
Factor by grouping
8x2+6x+4x+3
Answer:
8x+6x+4x=18x 2+3=5
=18x+5
Answer:
19+10x
Step-by-step explanation:
16+6x+4x+3
19+10x
Divine reduce the answer to lowest terms 4/5÷16/15
Answer:
.75 or 3/4
Step-by-step explanation:
1. What is 150% of $60?*
O $75
O $100
O $88
O $90
Answer:
The answer is $90.
Step-by-step explanation:
150%×60
150/100×60
3/2×60
3×30
=90
Hope this helps and if you could mark this as brainliest. Thanks!
PLEASEEEEEE HELP!!
Rachel has $5 in her savings account.
Option 1 will add $35 to her account each week.
Option 2 will double the amount of money in her account at the end of each week.
PART A:
Write a function in terms of x to model each option of saving.
Answer:
ya 5x is the right anwser
PLEASE HELP I'LL GIVE BRAINLIEST
Answer:a
Step-by-step explanation: