Answer: y = -3.5x - 4.5
suppose: the equation of the line is y = ax + b ( a ≠ 0 )
because the line passes through (-2;2.5) => 2.5 = -2a + b
the line passes though (0;-4.5) => -4.5 = b
=> b = -4.5
2.5 = -2a + b
=> a = -3.5
b = -4.5
=> the equation of the line is y = -3.5x - 4.5
Step-by-step explanation:
please help i am confused i appreciate answers!!!
Easy 30 Points!!!!!!!A microscope shows you an image of an object that is 20 times the object's actual size. So, the
scale factor of the enlargement is 20. An insect has a body length of 2 millimeters. What is the
body length of the insect under the microscope?
40 centimeters
40 millimeters
4 millimeters
400 millimeters
Answer:
1
Step-by-step explanation:
Answer:
Keywords:
Microscope, scale factor, enlargement, actual length, length to scale
For this case we have a microscope that shows an enlargement scale of objects, 140 times the actual size. Given the actual length of an insect, we want to know the scale length shown by the microscope. So, we have the following equation:
If the insect has a , then:
Thus, the microscope will show the insect with a size of 840mm
Answer:
The body length of the insect under the microscope is 840mm
Option D
Step-by-step explanation:
Use the diagram at the right to determine x and y. AB and CD are
straight lines.
Name a pair of vertical angles:
Find the measure of
Answer:
x=30
y=52
verticle angles: AOC and DOB
Step-by-step explanation:
WILL GIVE BRAINLIEST
On a field trip, there are 8 adults and 24 students. What is the ratio of students to the total number of people on the field trip?
8 to 24
3 to 4
1 to 4
32 to 24
Answer:
3:4
Step-by-step explanation:
24 students : 32 people total
Divide both sides by 8
Answer: 3 to 4
this is correct, verified it myself B)
Tina's Jack Russell weighed 19.5 pounds. This week, her dog weighed 21.8 pounds. Find the percent of change in the weight of her dog?
Answer:
90%
Step-by-step explanation:
19.5 divided by 21.8 = 0.89449541 = 0.89% or 0.9%
77÷ -11
20 points!!!!!
Answer:
7 time 11 is 77 so 77 divided by 11 is 7
Step-by-step explanation:
Answer:
It's -7
Step-by-step explanation:
It is roughly 8100 miles to fly from California to Australia. If it takes the airplane 15 hours to reach its destination of Australia, what was the average speed of the airplane in feet per hour?
Answer:
540 miles an hour or 2,851,200 Feet an hour
Step-by-step explanation:
Calculate the average speed of a boat that travels 600 meters in 40 seconds.
Answer:
15 meters in 1 second
Step-by-step explanation:
Divide 600 by 40 which is 15
so it travels 15 meters in 1 second
hope this helps!
Answer:15 meters per second
Step-by-step explanation:
600/40= 15
Answer quickly thank you so much!!!!!!!!!!!!!!!!!!!!!
If triangle A(0,-1), B(0,3), C(3,-2) is rotated at 90 degrees CCW about the origin, what are the new coordinates
Reflect the point (-7, -9) across the x-axis: Then
Reflect the point (-7, -9) across the y-axis:
Step-by-step explanation:
Reflecting across the x axis will result in a sign change for. the y component, therefore (-7,-9) becomes (-7,9)
Reflecting across the y axis will result in a sign change for the x component, therefore (-7,-9) becomes (7,-9)
Solve for x.
x − 1/4 = 3/8
Answer:
x=5/8
Step-by-step explanation:
x=2/8+3/8
Find the percent decrease round to the nearest percent from 93 Fahrenheit to 58 Fahrenheit the percent decrease is what percent
Answer:
38%Step-by-step explanation:
Initial value = 93 FFinal value = 58 FDecrease
93 - 58 = 35 FPercent decrease
35/93*100% = 38 % roundedWhat is 5pi 4 radians in degree
Answer: 225°
Step-by-step explanation:
To convert radians to degrees, multiply by 180/π (1 rad = 180° )
(5π/4) * (180/π/) = 225°
A corn vendor at a farmer’s market was selling a bag of 8 ears of corn for $2.56. Another vendor was selling a bag of 12 for $4.32. Complete the statement about which bag is the better deal.
The bag of
ears of corn is better a deal because each of ear of corn costs $
less.
Answer:
The bag of 8 ears of corn
Step-by-step explanation:
2.56/8 = .32 per ear of corn
4.32/12 = .36 per ear of corn
I don’t understand this
It's 6x10+8x1+4×0.1 It's just going by place value!
Which graph represents a function
1 2
3
4 5 6 7 8 9
Janice needs to write a couplet about the summer breeze for her literature class. How many lines should her poem be?
05
O2
04
01
Answer:
5
Step-by-step explanation:
A cinquain is a five-line poem, with a set number of words in each line The French word "cinq" means five, which is why it is called a cinquain. Here is an example.
Apples,
Rosy, juicy,
Sweet, delicious, crisp,
Better still in pies,
Apples.
hope this helps and plz mark as brainlest
Question 4 of 25
True or false: f(x) is a function.
8
12
0
f(x)
A. True
Ο Ο
B. False
Answer:
true
Step-by-step explanation:
I need to solve 11-20 ASAP pls
x2 + 5x – 14 =
Help plz
Answer:
Step-by-step explanation:
Got a -4
what is the formula for the perimeter of a semicircle
Answer:
The perimeter of a semicircle is the sum of the half of the circumference of the circle and diameter. As the perimeter of a circle is 2πr or πd. So, the perimeter of a semicircle is 1/2 (πd) + d or πr + 2r, where r is the radius.
Y = 3x - 5 what is the value of Y??
Answer:
41
Step-by-step explanation:
x=12
so y=3⋅12 +5
=36+5
=41
Jin bought 4 markers for $7. How many markers can he buy for $21? (label your answer for full credit)
Answer:
The answer is 12 markers. 4 markers for $7. You multiply 7 x 3and you end up with 21
Step-by-step explanation:
The expression 35000(0.87)^t describes the value of a car years after it has been purchased. Interpret the coefficients of the expression in the context of this situation.
Answer: 35,000 · 0.87t
Step-by-step explanation: A coefficient is multiplying
HELP ME PLEASE 40 POINTS
Answer: abd=50
Step-by-step explanation: bc angel 3 is 80 that means angel 2 is one hundred and abc is the same as angel tow because the two lines are so ABC is 100 and line segment BC is bisecting ABC so you divide ABC by two and get 50
HELP!! I'll mark whoever answers brainliest. claire can run 20 miles in 95 minutes how many can she run in 285 minutes
Answer:
60
Step-by-step explanation:
285/95=3
3*20=60
Answer:
60
Step-by-step explanation:
i think not 100% sure
What's 1+1 I will give brainliest
Answer:
2
Step-by-step explanation:
hope this helps :3
if it did pls mark brainliest
Answer:
2
Step-by-step explanation:
Numbers go in the order 1,2,3,4,5,6,7,8,9,10
If we go up one we will have two
Hope this helps
Write the equation y+5=-10(x-1) into standard form
Answer:
10x + y = 5
General Formulas and Concepts:
Pre-Algebra
Equality PropertiesAlgebra I
Point-Slope Form: y - y₁ = m(x - x₁)
x₁ - x coordinate y₁ - y coordinate m - slopeStandard Form: Ax + By = C
Step-by-step explanation:
Step 1: Define
Point-Slope Form: y + 5 = -10(x - 1)
Step 2: Find Standard Form
Distribute -10: y + 5 = -10x + 10Add 10x on both sides: 10x + y + 5 = 10Subtract 5 on both sides: 10x + y = 5And we have our final answer!
Which decimal is greater ? .0203 or .023
Answer:.023
Step-by-step explanation:
