Solve for x.
x2 - 49 = 0
A)0
B)+49
C)+49i
D)+7
Answer:
x=±7
Step-by-step explanation:
x²=49
x=±7
Answer:
D) +7
Step-by-step explanation:
x2-49=0
x2= +49
√x2= √+49
x= +7
5 Find each probability if you pick two marbles without replacing the first (G = green; R = red; Y = yellow).
T. P(red, then green) F. Plyellow, then not yellow)
G G G G
E. P(red, then yellow) R. P(green, then not green)
M. P(green, then green) W. P(not red, then not red)
R R Y Y
Y
Answer:
Sorry but your question is incomplete!
it's impossible to answer this question if we don't know the total number of outcomes
I'm referring to writing the question instead of OCR-ing it
it's all on the picture
Answer:
1. 6 square feet 2. 32ft
Step-by-step explanation:
1. 2x3=6
2. 8 times how many sides so that would be 8x4 which would equal 32
Add fractions with unlike denominators
Answer:
2.1
Step-by-step explanation:
Find the measure of the angle indicated
Can someone put an example of how to do bearings for precal?
Answer:
A bearing is used to represent the direction of one point relative to another point. For example, the bearing of A from B is 065º. The bearing of B from A is 245º.
A car is traveling at a constant speed of 60 miles per hour. Complete the table below to the distance that the car travels in hours.
Manuel needs to buy plastic spoons. Brand Ahas a box of 12 spoons for $1.12. Brand B has a box of 25 spoons for 2.69 Find the unit price for each brand. Then state which brand is the better buy based on the unit price. Round your answers to the nearest cent. Unit price for the Brand A spoons: I for each spoon Unit price for the Brand B spoons: $] for each spoon The better buy: O Brand A O Brand B O Neither (They have the same unit price)
Answer:
Brand A: 0.92 Brand B: 0.11
Step-by-step explanation:
1.12 divided by 12 (round down)
2.96 divided by 25 (round up)
brand B is better to buy because you get more and it costs less per spoon
PLEASE HELP WITH GOVE BRAINLY
(2x-12)=56 how do you find x
Answer:X=4
Step-by-step explanation: you add 12 to both sides which should get you 2x=68 and then divide both sides by 2 which should get you X=4
Please Answer! I will give brainiest. The Picture is down below :)
Thank You!
Answer:
there's no pic!..............
Find the slope of the line with x intercept 9 and y intercept of -2
Answer:
2/9
Step-by-step explanation:
Find the slope of the line with x intercept 9 and y intercept of -2
Given that the equation of the line is y = mx+b
x intercept occurs when y = 0
The coordinate of x intercept is (9,0)
y intercept occurs at x = 0
The coordinate of y intercept is (0, -2)
Slope m = y2-y1/x2-x1
m = -2-0/0-9
m = -2/-9
m = 2/9
Hence the required slope is 2/9
Pls just order the temps I suck at temperature
8.4 degrees C below zero
10.9 degrees C below zero
8.8 degrees C
Answer:
from low to high:
10.9 degrees below zero C
8.4 degrees below zero C
8.8 degrees C
(if you want high to low, just reverse the order)
Multiply 28.253 × 0.49 = _____
Answer:
13.84397
Step-by-step explanation:
Step-by-step explanation:
28253/1000*49/100
1384397/100000
=13.84397
solve for x x(5x+2)=0
Answer:
x = 0.4
x = 2/ 5
Step-by-step explanation:
Answer:
x=0 or x=-2/5
Step-by-step explanation:
Step 1: Simplify both sides of the equation.
5x2+2x=0
Step 2: Factor left side of equation.
x(5x+2)=0
Step 3: Set factors equal to 0.
x=0 or 5x+2=0
Hope it helps ;)
mario needs to cut three book shelves from a board that is 1.8 meters long. the second shelf is 15 centimeters longer than twice the length of the first shelf . the remaining shelf is 5 centimeters longer that the first shelf. the equation below represents this situation, where x is the length of the first shelf in meters
x+(2×+0.15)+(×+0.05)=1.8
A. 0.40
B.0.45
C.0.53
D.0.96
Answer:
0.40
Step-by-step explanation:
4x+0.15+0.05=4x+0.2=1.8
1.8-0.2=1.6
1.6/4->x=0.4
Calculate the circumference of a circle whose radius is 7.2 Cm (Idek I just woke up lol)
Cockroaches can digest a wide range of substances, which makes them a(n) _____.
A.specialist species
B.generalist species
C.keystone species
D.indicator species
Answer:
specialist species
i need step by step answers
Convert the equation to Standard Form.
y=2(x+1)^(2) −4
Answer:
(-8x2-16x-8)
Step-by-step explanation:
y= (2x + 2)^2 (2 - 4)
y= (2x + 2)(2x + 2)(2 - 4)
y= −82−16−8
This is hard can someone help me!
Substitution
3x+y=-8, -8x-3y=21
PLEASE HELPP ME<3
Natasha conducted a survey to determine how many of the 215 workers in her office building use public transportation to get to work. She surveyed 30 randomly selected workers who entered the office cafeteria throughout the day. Of the 30 workers surveyed, 9 used public transportation to get to work.
Which change to Natasha's survey process would make the data more reliable?
A. Ask a randomly selected sample of people who use public transportation whether their office is in the building.
B. Use a different sample size so the predicted number of workers who use public transportation is a whole number.
C. Have workers complete a written survey so there is a written record of the responses.
D. Randomly select the sample in the lobby of the building so workers who do not enter the cafeteria can be included.
Answer:
D
Step-by-step explanation:
At 7am there was 4 inches of snow on the ground. After that, the snow fell at a rate of 1.5 inches per hour. Equation:
Answer:
y(t) = 4 + 1.5t
.
Step-by-step explanation:
Initial amount of snow = 4 inches
Fall rate of snow = 1.5 inch per hour
Equation to model the scenario goes thus :
Initial amount of snow + (fall rate of snow * number of hours)
Let the number of hours = h
4 inches + (1.5 inch per hour * h)
Equation, y(t) becomes ;
y(t) = 4 + 1.5t
PLEASE HEEEEEELP!!
Answer:
180- 20
Step-by-step explanation:
A straight line is 180 therefore the piece that is cut off has to be subtracted from 180. 20 is the cut off piece. 180-20= 160
Which of the following slopes show that the set of points C(1, -1), D(3, 4), E(5, 8) are not collinear?
1. 2/5, 1/2, 4/9
2. 5/2, 2, 9/4
3. -2, 2, 9/4
4. 2, 3, 5/2
The set of points W(4, 4), X(6, 2), Y(-8, 16) are collinear and the line has a slope of ____.
1. -1
2. 3/4
3. 1/2
4. 1
Which of the following slopes show that the set of points C(1, 1), D(3, -4), E(5, 8) are not collinear?
1. 6, -5/2, 7/4
2. -1, 1/2, -3/5
3. 1/2, 3, 5
4. 1/3, -5/3, -2/5
are not collinear 3
line has slope of 3
not collinear 4
Answer:
2. 5/2, 2, 9/4
1. -1
1. 6, -5/2, 7/4
Step-by-step explanation:
I just did this lesson.
The answers to your questions are
2. 5/2, 2, 9/4
1. -1
1. 6, -5/2, 7/4
A biologist is studying a group of alligators in a swamp and tagged 4 hatchlings, 5 juveniles, and 6 adults. The biologist estimates that this tagged sample is a reliable reflection of the ratios of hatchlings, juveniles, and adults in the general alligator population for the area. The biologist estimates that the total number of alligators in the area is 120. The most likely number of adults in the total population is ______?
A. 32
B. 48
C. 72
D. 120
AND PLZ NO LINKSSSS
Answer:
48
Step-by-step explanation: Take the 6 adults and divide it by one of the multiple choice answers to get a ratio. The ratio of 48 / 6 = 8. You can then see if that ratio helps you add up all the alligators to 120.
4 x 8 + 5 x 8 + 6 x 8 = 120
SOMEONE PLEASE HELP!
5.) Write both an explicit equation and a recursive equation for the sequence 4, 2, 1,05,0.25...
Explicit equation:
Recursive equation:
HURRY PLEASE!!!
Since the common ratio is 0.5, hence the recursive equation will be an = 0.5an-1 and Tn = 4(0.5)^n-1 (Explicit equation)
Sequence and seriesSequences are number arranged in a specified pattern. Given the geometric sequence
4, 2, 1,05,0.25...
Common ratio. = 2/4 = 0/.5
First term a = 4
The nth term of the sequence in explicit form is Tn = ar^n-1
Tn = 4(0.5)^n-1 (Explicit equation)
For the recursive function
Explicit equation = an =ran-1
Since the common ratio is 0.5, hence the recursive equation will be an = 0.5an-1
Learn more on sequence here: https://brainly.com/question/6561461
#SPJ1
is y = 7/8x proportional or non-proportional??
Answer:
It is proportional
Step-by-step explanation:
May have brainllest I only need 39 more to get to genius
I don’t get this problem at all-
Answer:
2nd option
Step-by-step explanation:
If AB is a tangent to the circle then ∠ B is right angle
Using the converse of Pythagoras' identity.
If the square of the longest side is equal to the sum of the squares on the other 2 sides, then the triangle is right
longest side = 52 and 52² = 2704
48² + (10 + 10)² = 48² + 20² = 2304 + 400 = 2704
Then AB is a tangent to the circle since ∠ B is a right angle
Given that 1 inch =2.54 how many centimeters are in 8 feet
Answer:
243.84 cm
Step-by-step explanation:
8 feet = 96 inches
96 inches x 2.54 in/cm = 243.84 cm