Answer:
Y intercept form
Step-by-step explanation:
The line y = mx + c passes through the points (3,7) and (5,13). What are the values of m and c?
Answer:
c=-2 and m=3
this is because the y intercept of the line given is -2 and if you find the slope is 3/1 or simplified to 3
Una bacteria se divide en dos cada 6 minutos Si a las 12:15 horas se coloca una bacteria en un recipiente¿ A que hora habrá 128 bacterias en el recipiente?
Answer:
A las 12:57 horas habrá 128 bacterias en el recipiente.
Step-by-step explanation:
Una función exponencial es aquella en que la variable independiente x aparece en el exponente y tiene de base una constante a. Su expresión es:
f(x)= aˣ
Siendo a un real positivo, a > 0, y diferente de 1.
Cuando 0 < a < 1, entonces la función exponencial es una función decreciente y cuando a > 1, es una función creciente.
Algunos tipos de bacterias se reproducen por "mitosis", dividiéndose la célula en dos cada espacios de tiempo pequeños, como sucede en este caso. Entonces, "a" tendrá un valor de 2, que es la cantidad en la que se divide la bacteria, y "x" será los intervalos de tiempo. Si hay 128 bacterias en el recipiente, la expresión exponencial del crecimiento de la bacteria en x intervalo de tiempo será:
2ˣ= 128
Una manera de resolver la x es aplicando logaritmos. Entonces, aplicando el logaritmo común de ambos lados. (Cuando la base no está escrita, se trata de la base 10):
log (2ˣ) = log (128)
Aplicando la propiedad de la potencia de los logaritmos:
x* log (2)= log (128)
x= log (128) ÷ log (2)
x= 7
Cada intervalo de tiempo tiene 6 minutos, que es el tiempo en que una bacteria se divide en 2. Entonces, el tiempo que se tarda en obtener 128 bacterias se calcula como:
7 intervalo* 6 minutos= 42 minutos
Si a las 12:15 horas se coloca una bacteria en un recipiente, entonces el horario a la que habrá 128 bacterias se calcula como:
12:15 + 42 minutos= 12:57
A las 12:57 horas habrá 128 bacterias en el recipiente.
Find the Surface Area of the Square Pyramid.
Answer:
279 in.²
Step-by-step explanation:
square: 9 × 9 = 81
the 4 congruent triangles: 9 × 11 ÷ 2 = 49.5, 49.5 × 4 = 198
square + 4 congruent triangles = 81 + 198 = 279
Which of the following is not a career in environmental science? a. Hydrologist b. Toxicologist c. Physiologist d. Ecologist Please select the best answer from the choices provided
Answer:
C
Step-by-step explanation:
No doubt thats the correct answer guys, thank me later
Please help ASAP, No links or report, Tysm!
Giving out brainliest
Find the perimeter of the figure.
Answer:
96 ft is the perimeter of the figure.
Step-by-step explanation:
9 + 9 + 9 + 9 + 9 + 9 + 12 + 30 = 96
Have a nice day!
Answer:
105
Step-by-step explanation:
9+9+9+9+9+9+30+21 = 105
HAVE A GREAT DAY SHAWTYYY
Find mADB unit 7 geometry
Answer:
∠ ADB = 59°
Step-by-step explanation:
The vertices of a rectangle are right angles, then
∠ ADB + 31° = 90° ( subtract 31° from both sides )
∠ ADB = 59°
Is the relationship between the variables a direct variation, an inverse variation or neither? If there is a variation write the function rule, where x is 2,3,4,5 y = 9,6,4.5,3.6
Answer:
Indirect variation
Rule: [tex]y = \frac{18}{x}[/tex]
Step-by-step explanation:
Given
[tex]x \to 2,3,4,5[/tex]
[tex]y \to 9,6,4.5,3.6[/tex]
Required
Determine the type of variation
For direct variation, we have:
y increases, as x increases
In the above function, y decreases, as x increases
Hence, it is not a direct variation
Indirect variation.
In an indirect variation, y decreases, as x increases
And the equation is given as:
[tex]y = \frac{k}{x}[/tex]
Make k the subject
[tex]k =xy[/tex]
Where k is the constant of variation.
For:
[tex](x,y) = (2,9)[/tex]
[tex]k = 2 * 9 = 18[/tex]
For:
[tex](x,y) = (3,6)[/tex]
[tex]k = 3 * 6 = 18[/tex]
For every other values;
[tex]k = x * y = 18[/tex]
Hence, it is an indirect variation.
The rule is:
[tex]y = \frac{k}{x}[/tex]
Substitute 18 for k
[tex]y = \frac{18}{x}[/tex]
hellllllllllllllllllp...
Given:
The expression is:
[tex]\dfrac{15m^2-3}{3m-1}[/tex]
To find:
The simplified value of the given expression.
Solution:
We have,
[tex]\dfrac{15m^2-3}{3m-1}[/tex]
On dividing, we get
[tex](3m-1)|\overline{15m^2+0m-3}|5m+\dfrac{5}{3}[/tex]
[tex]-(15m^2-5m)[/tex]
[tex]\overline{\quad \quad -5m-3}[/tex]
[tex]-(5m-\dfrac{5}{3})[/tex]
[tex]\overline{\quad \quad -\dfrac{4}{3}}[/tex]
Here, quotient is [tex]5m+\dfrac{5}{3}[/tex] and the remainder is [tex]-\dfrac{4}{3}[/tex].
Therefore, [tex]\dfrac{15m^2-3}{3m-1}=5m+\dfrac{5}{3}-\dfrac{4}{3(3m-1)}[/tex].
If y = 160 (2x) , what is y if x = 2?
No Files or links. Just the answer.
Answer:
640
Step-by-step explanation:
hope that helps you out
What is the value of x? *
In a circle, the parts of the diagonals multiply to equal each other, so 6·4=2x.
2x = 24, x = 12.
You are watching fireworks over San Diego Bay S as you sail away in a boat. The highest point the fireworks reach F is about 0.2 mile above the bay. Your eyes E are about 0.01 mile above the water, the lowest elevation from which you see the fireworks above your horizon. (At point B you cannot see the fireworks because of the curvature of Earth.) The radius of Earth is about 4000 miles, and FE¯¯¯¯¯¯¯¯ is tangent to Earth at point T. Find mSB⌢. Round your answer to the nearest tenth.
Based on the calculations, the measure of angle m<SB rounded to the nearest tenth is equal to 0.70°.
What is a tangent?In geometry, a tangent is also referred to as a tangent line and it can be defined as a straight line that touches a plane curve at a specific point.
Based on the diagram, we would apply the cosine function to determine the measure of the angle formed by the hypotenuse side of the triangle with respect to the radius of Earth (adjacent side):
m<SB = cos⁻¹(4000/4000 + 0.2) + cos⁻¹(4000/4000 + 0.01)
m<SB = cos⁻¹(4000/4000.2) + cos⁻¹(4000/4000.01)
m<SB = cos⁻¹(0.99995) + cos⁻¹(0.9999975)
m<SB = 0.573 + 0.128
m<SB = 0.701 ≈ 0.70°.
Read more on cosine function here: https://brainly.com/question/4515552
Cyclone cleared leaves from the same number of yards each day for 5 days. Then on day 6, he cleared the leaves from 8 more yards. He cleared 133 yards in all.
How many yards did Cyclone clear the first day?
Answer:
20.83 yard
Step-by-step explanation:
Calculate Cubic Yards
Calculate your area
Calculate your volume: Multiply area times the depth to get volume in cubic feet
Calculate your cubic yards: Divide cubic feet by 27 to convert to cubic yards and this is your answer
Where ft2 = square foot, ft3 = cubic foot, yd3 = cubic yard
Total yards = 5[x] + x + 8
Solve
133 = 6x + 8
6x = 125
x = 20.83 yard
Therefore, the Cyclone cleared 20.83 yards on the first day.
Sasha's grandma is going to sew this umbrella for Sasha. The umbrella is made of 4 identical triangles. If each triangle is 3 feet long and 4 feet high, how many square feet of fabric does Sasha's grandma need? Explain how you found your answer.
Answer:
Sasha's grandma will need 48 square feet of fabric to sew the umbrella.
Step-by-step explanation:
Since Sasha's grandma is going to sew an umbrella for Sasha, which will be made of 4 identical triangles, if each triangle is 3 feet long and 4 feet high, to determine how many square feet of fabric does Sasha's grandma need, the following calculation must be done:
(3 x 4) x 4 = X
12 x 4 = X
48 = X
Therefore, Sasha's grandma will need 48 square feet of fabric to sew the umbrella.
At Adams Middle school, 75 boys and 55 girls belong to the school band. Of the 75 boys, 15 play the drums. Only 5 girls play the drums. What percent of the boys play drums?
x=100×15/75
x=1500/75
x=20% boys
Answer:
20%
Step-by-step explanation:
look at the formula I have used then you will understand good day
solve in area formula
Cole has a can of marbles. NEED HELP It would mean so much to me.
Answer:
C
plz can i get brainliest
The chart given here lists the amount of rainfall received in centimeters in each month. By how much is the combined rainfall received in January and February less than the combined rainfall received in the months of April and May?
A. 34 cm
B. 23 cm
C. 18 cm
D. 12 cm
I will give brainliest if you answer this question under 2 minutes
And btw, NO FILES OR I WILL REPORT YOU
Answer: Its B did the quiz lol
Step-by-step explanation:
24 What is 0.64 rounded to the tenths place? Record your answer and fill in the bubbles on your answer document. Be sure to use the correct place value.
Answer:
0.6 is the answer hope this helps
have a nice day bye
please help with this equation
Answer:
y=69420
Step-by-step explanation:
f=42×0=420
b=6+9=69
i=91÷1=911
A big league pitching coach tries to limit his pitchers to 110 pitches per game. If the pitcher has
already thrown 52 pitches, write and solve an inequality to find how many more pitches he can
throw before reaching the limit.*
Type your inequality AND your answer as a sentence.
The pitcher can throw 58 until he reaches the limit, hopefully I helped :)
Please help me i need to turn this in by the end of the day
Answer:
n must be greater than 5 for the product to be greater than 10.
Step-by-step explanation:
10 times 2/5 = 4 (no)
10 times 6/5 = 12 (yes)
10 times 5/5 = 10 (no)
Answer:
The 3rd one I believe
Step-by-step explanation:
what the answer for Q 1 and 2
Answer:
yung 70
Step-by-step explanation:
i hope its help
carry on learning
The dot plot shows the number of hours that students spent watching TV.
Select all the statements that are true.
A. A typical student from this group spends more than 10 hours watching television each week.
B. More students watch 3 hours of television than watch more than 3 hours of television.
C. All students watch 20 or fewer hours of television each week.
D. The most common answer for the number of hours that a student watches per week was 3.
E. Some students do not watch any TV during the week.
Answer:
B C and D
Step-by-step explanation:
common sense
What is the circumference of a circle with area 24cm. Give your answer to three significant figures.
Answer:
Circumference = 17.4 cm
Step-by-step explanation:
A = π[tex]r^{2}[/tex]
24 = π[tex]r^{2}[/tex]
[tex]r^{2}[/tex] = 24/π
r = [tex]\sqrt{\frac{24}{\pi } }[/tex] = 2.7639...
d = 5.5279...
C = πd
= π5.5279...
= 17.4 cm
Find the area of each.2)18in A)64 B)49 C)81 D)100
Answer: It's C
Step-by-step explanation:
Look at this graph :
Is this relation a function?
Answer:
yes it relates to a function
Write an equation of the line with the given slope and y-intercept
slope: 1.4, y-intercept: 5.6
O y = 1.4x + 5.6
Oy=-*x+5.6
O y = 1.4x -5.6
O y=-1.4x + 5.6
Someone help?
Answer:
y = 1.4x + 5.6
Step-by-step explanation:
plug the slope and y-intercept into the formula: y = ax + b (a is the slope and b is the y-intercept)
thus, y = 1.4x + 5.6
Fill in the table using this function rule.
y=19-2x
Answer:
Step-by-step explanation:
given
y = 19 - 2x
when x = 3 , y = 13
when x = 4 , y = 11
when x = 5 , y = 9
when x = 6 , y = 7
hope it helps :)
Which of the following shows the equation log Subscript 4 Baseline (x + 6) = 2 rewritten using logarithms?
Answer: The answer is c log4(x+6)=log4 16
Step-by-step explanation:
Answer:
c
Step-by-step explanation:
1. Savannah is trying to justify to her geometry class that the 2 lines she drew, line a and line b, are
parallel. Select all of the reasons that prove Savannah's lines parallel.
Answer:
A, C, D
Step-by-step explanation: