9514 1404 393
Answer:
3
Step-by-step explanation:
For f(x) = x^3 -2x^2 -7x +5 and x=1/(2-√3), we have ...
f(x) = ((x -2)x -7)x +5
and ...
x = 1/(2-√3) = (2+√3)/(2^2 -3) = 2+√3
Then ...
f(2+√3) = ((2 +√3 -2)(2 +√3) -7)(2 +√3) +5
= (3+2√3 -7)(2+√3) +5
= 2(√3 -2)(√3 +2) +5 = 2(3 -4) +5 = -2 +5
f(1/(2 -√3)) = 3
_____
If you really mean x = (1/2) -√3, then f(x) = (42√3 -3)/8.
4. Mia ran 10 laps in 8 minutes. Shawna ran 4 laps in 3 minutes. Which person ran at a faster rate? * O Mia ran at a faster rate. Sawna ran at a faster rate. O They both ran at the same rate.
Answer:
Shawna ran at a faster rate.
Step-by-step explanation:
Because of Shawna ran for 10 minutes just like Mia, it would take her 7.5 mins while Mia took 8minutes to run 10 laps
PLEASE ANSWER THE QUESTION CORRECTLY, I’LL GIVE YOU BRANLIEST! Please answer my other math questions if you solve this one, thanks.
Answer:
true
Step-by-step explanation:
divide 501.555 by 5 and give answer in 2 decimal number
Answer:
100.31
I hope this helps
The word and in probability implies that we use the ________ rule.
Answer:
Addition Rule
The word or in probability implies that we use the Addition Rule.
The word "and" in probability implies that we use the "Multiplication Rule".
The Multiplication Rule is used when calculating the probability of two or more independent events occurring simultaneously.
It states that the probability of two or more independent events occurring together is equal to the product of their individual probabilities.
In other words, if event A and event B are independent, then the probability of both events A and B happening is given by:
P(A and B) = P(A) x P(B)
Learn more about Probability here:
https://brainly.com/question/31828911
#SPJ6
A mirror is the shape of an ellipse defined by y^2/7.29 + x^2/6.25 = 1 with units in feet. Which statement identifies the
orientation of the mirror and its greatest dimension?
Answer:
a (The mirror has a vertical orientation and is 5.4 ft tall.)
Step-by-step explanation:
a on edg 2021 ^u^
Answer: A. The mirror has a vertical orientation and is 5.4 ft tall.
Step-by-step explanation:
Since the y^2 value is being added first, and the value in its denominator is greater, we know that the ellipse has a vertical major axis.
Therefore, its orientation is vertical.
The square root of is 7.29, so 2.7 is the distance from the center to one of the ellipse's vertices. (You can research further into the equation for ellipses with vertical major axes to learn why that is.)
Multiply 2.7 * 2 = 5.4 to determine the full height of the mirror.
Yay! We figured out that "the mirror has a vertical orientation and is 5.4 ft tall".
Michael cut 1/5 from a round dessert.Isrel cut a pice from the same dissert with an angle measure of 45 degrees who cut the larger piece?
Answer:
Michael cut the lrger piece
Step-by-step explanation:
a circle has 360 degrees
360:5=72° -> michaels piece
45°<72°
Step-by-step explanation:
Michael cut 1/5 of a round dessert.
Round dessert is a circke so total angle in 360.
Now, 1/5 of 360 = 360/5 = 72
72 > 45
So Michael cut the larger piece.
HELP PLS
If the perimeter of a square is 72 inches, what is its area?
Answer:
I believe 324
Step-by-step explanation:
18x4 is 72 and it's a square so they all have same size
18x18 is 324
Help with math thanks so much!!!!
Convert to a mixed number and simplify 83/6 pls help pls give a explanation so i can understand pls thank you.
What you think is fair punishment for a traitor of a country
A fair punishment I believe is the person going to prison for their life or a death sentence.
The difference of two numbers is 3. Their sum is 13. Find the numbers.
Answer:
8 and 5
Step-by-step explanation:
Answer:
8 and 5
Step-by-step explanation:
Find an
expression which represents the sum of (8x - 7) and (10x + 3) in
simplest terms.
80x + 24x × 70x + 21 = 3.4 when approximated
What is the value of y for the point with an x-value of 5?
Answer:
Y would be 6
Step-by-step explanation:
it's shown in the graph that when you go to the x value of 5 and follow it the only point there is (5,6) so the answer is 6
A researcher has a colony of bongo spiders in his lab. There are 1200 adult spiders in the colony, and their weights are normally distributed with a mean of 11 grams and a standard deviation of 2 grams.
a) about what percent of spiders in the colony weigh between 7 grams and 13 grams?
b) about what percent of spiders in the colony weigh less than 9 grams?
c) What is the z-score of a spider in this colony that weighs 15 grams?
d) Approximately 68% of all the spider weights would occur between what two weights.
Approximately 68% of all the spider weights would occur between ______and _______grams.
e) What percent of spiders in the colony weigh more than 15 grams?
REAL ANSWERS ONLY!
Math help plzzzzzzzxysgzfrhfu
Answer:
d is answer i 100% sure for first
Answer:
A
Step-by-step explanation:
simply:
-24d⁵z⁴/ 18d-⁵z⁴
write your answer with only positive exponents
Answer:
-24d^10/18
Step-by-step explanation:
-24d⁵z⁴/ 18d-⁵z⁴
The two z⁴ cancel out, and when dividing exponents you subract them.
d⁵-d-⁵=d^10
Put it all together and you get
-24d^10/18
please...... !!!!!!!
Answer:
Answer is 5
Step-by-step explanation:
I did math that's explaining.
Answer:
for 15 i think its B, 70 + 20w greater/equal to 150
If angle 2 measures 75 degrees, how many degrees is angle 4?
Lani had a box that contained: 1 blue marble 1 green marble 1 purple marble 1 yellow marble 2 red marbles Lani removed one marble without looking and she recorded the result. She placed the marble back in the box and repeated the procedure one more time. What is the probability that she removed a red marble followed by a blue marble?
Answer:
16.66 and 0.33 im pretty sure
Step-by-step explanation:
A fruit bowl contains apples, oranges, and bananas. The radius of one of the oranges is 1.45 inches. What is the approximate volume of the orange? Use 3.14 for .
Answer:
12.76 in³
Step-by-step explanation:
The volume of a sphere formula is V = (4/3)πr³.
Here we use 3.14 for π and 1.45 in for r. We get:
V = (4/3)(3.14)(1.45 in)³ ≈ 12.76 in³
Which of the following has a unit price (price per item) of $0.25? Choose 2. *
1 point
5 pieces of candy for $1.20
8 pieces of candy for $2.00
7 pieces of candy for $1.70
6 pieces of candy for $1.50
Answer:
8 pieces/$2.00
6 pieces/$1.50
Step-by-step explanation:
Debra shopped on Monday and bought a pair of shoes that was 20% off its original price
of $60.
What was the discount amount?
Answer:12
Step-by-step explanation:
60 times 20 = 1200 1200 divided by 100 = 12
In this diagram, AC and AB are
tangent to o 0. The measure of BOC
is 265º and the measure of BC is 95'.
What is the measure of CAB?
Answer:
angle CAB = 85 degrees
Step-by-step explanation:
angle CAB = 1/2(265-95)
angle CAB = 85 degrees
giving brainliest !! *easy*
ih4egjhbsDLJFB sFHBseiuhFB skefByefusj:FKBs:iuyeGFBsjk :efge8FUIsj
Answer:
v = 49 pied square cm squared x 4 cm
Step-by-step explanation:
What's
2/3 + 1/6 =
1/3 + 2/4 =
1/2 -1/4 =
3/8 - 1/3 =
Jeremiah ran for 3/10 of a mile and then walked another 2/5 of a mile. How far did he travel in all?
Elisa has 3/4 cup of flour. She used 3/6 to make cupcakes. How much flour does Elisa have left?
Daniel read 4/5 books and Edgar read 1/2 books. How many more books did Daniel read than Edgar?
Jared drove 2/8 miles to the restaurant. He drove another 1/4 miles to the mall. How many miles did he drive in all?
Answer:
A. 5/6 B. 5/6 C. 1/4 D. 1/24
Step-by-step explanation:
A. 12+3= 15 = 5
— — —
18. 18. 6
B. 4+6=10= 5
— — —
12. 12. 6
C. 4-2=2 = 1
— — —
8. 8. 4
D. 9-8 = 1
— —
24. 24
Need help plz!!!!!!!!???????
Answer:
x=16º
Step-by-step explanation:
The sum of angles in a triangle is 180º.
So,
39 + 125 + x = 180
Solve for x.
164 + x = 180
x = 180-164
x= 16
solve for t
–9.96 + 9.9t = 1.54 + 7.7t + 7.2t
Answer: -2.3
Step-by-step explanation:
–9.96 + 9.9t = 1.54 + 7.7t + 7.2t
–9.96 + 9.9t = 1.54 + 14.9t
-9.96 - 5t = 1.54
-5t = 11.5
t = -2.3
You role a six-sided die. The P(even or odd) is
Answer:
1/2
Step-by-step explanation:
1/2 is the answer to your question
Find the quotient. 4^r ÷ 4^s
Triangle FGH is dilated by a scale factor of 5 to form triangle F'G'H'. Side F'G'
measures 15. What is the measure of side FG?
Answer:
The measure of side FG is 3.
Step-by-step explanation:
Dilation is a process in which the dimensions of a given shape or figure is either increased or decreased by a scale factor to produce its image.
From the given question,
scale factor = 5
measure of side F'G' = 15
Thus,
scale factor = [tex]\frac{measure of side F'G'}{measure of side FG}[/tex]
side F'G' = scale factor x side FG
⇒ 15 = 5 x side FG
So that,
side FG = [tex]\frac{15}{5}[/tex]
= 3
The measure of side FG is 3.