Answer:
C. [tex]x=-9 \textsf{ and }x=1[/tex]
Step-by-step explanation:
[tex](x+4)^2=25[/tex]
[tex](x+4)(x+4)=25[/tex]
expand the brackets:
[tex]x^2+8x+16=25[/tex]
subtract 25 from both sides:
[tex]x^2+8x-9=0[/tex]
factor:
[tex]x^2+9x-x-9=0[/tex]
[tex]x(x+9)-1(x+9)=0[/tex]
[tex](x-1)(x+9)=0[/tex]
solve for x:
[tex]x-1=0 \implies x=1[/tex]
[tex]x+9=0 \implies x=-9[/tex]
Use the model to help you find the product.
1
2
3
×
1
3
A model represents 1 and two-thirds.
Each big square is cut into 3 parts to represent multiplying by one-third.
The number of small shaded squares in the circled parts of each big square is the numerator of the product.
The total number of small squares in a single big square represents the denominator of the product.
The product is .
Answer: 5/9 is your answer.
Answer:
it is 5/9, yw
Step-by-step explanation:
What is this ¾x=30 i need to find x
Answer:
x=40
Step-by-step explanation:
multiply both sides by 4/3
use gcf (4) to reduce #s
multiply
6. You and your family went to a restaurant and the bill came to $120. You decide to
leave an 18% tip. How much of a tip should you leave?
a. $200.00
b. $206.00
c. $21.60
d. $21.00
Answer:
c
Step-by-step explanation:
18 percent of 120 is 21.6
Alyssa has five baseball cards. Sam bought two of alyssa`s baseball cards.how many baseball cards does Alyssa have now
Answer:
3
Step-by-step explanation:
5 baseball cards - 2 baseball cards =3 baseball cards
Answer:
3
Step-by-step explanation:
5-2=3
Stanley recieved 110 pieces of candy for Halloween. He gave 20% of his candy to his little brother. So far, he has eaten 25% of the remaining candy. How many pieces of candy are left?
solve this inequality m−11≥−2
Answer:
m ≥ 9
Step-by-step explanation:
Given
m - 11 ≥ - 2 ( add 11 to both sides )
m ≥ 9
Answer:
M≥9
Step-by-step explanation:
Evaluate the equation.
12.8 + c = 30.12
A. c =17.28
B. c =17.32
C. c =42.92
D. c =43.02
Answer: B. c = 17.32
Step-by-step explanation:
12.8 + c = 30.12
c = 17.32 [Subtract 12.8 from both sides.]
Therefore, answer is B.
Current intelligence tests, including the Stanford-Binet, assign an average performance score as 100. In a normally distributed set of scores, with a standard deviation of 15, which percentage of scores will fall between 85 and 115
Answer:
68.27%
Step-by-step explanation:
By the Empirical Rule, the amount of data that is 1σ below and above the mean μ accounts for 68.27% of the data.
The perimeter of a triangle is 50 feet. One side of the triangle is 4 times the second side. The third side is 14 feet longer than the second side. Find the length of each side.
Answer:
Step-by-step explanation:
what is the approximate height of the rice container if the radius is 2.5 in. and the volume is 235.5 in cubed
Answer:
12 in
Step-by-step explanation:
r = 2.5 in
V = 235.5 in³
Find h
Use V = πr²h
so 235.5 = 3.14 * 2.5² * h
235.5 = 19.625 h
h = 235.5/19.625 = 12 in
1. Which is greater than 4?
(a) 5,
(b) -5,
(c) -1/2,
(d) -25.
Answer:
a
Step-by-step explanation:
Bailey is multiplying 32 by 7. She says the answer will be greater than 32.
Do you agree with her?
Yes I agree
32×7 = 224 which is greater than 32.
100 POINTS
how much money would we have if we did only interest on this account in 11 years When kolton starts college?
Answer:
32,577.89
Step-by-step explanation:
used my calculator and just finished this module in school
A HighSchool’s football Stadium holds a total of 7,000 fans. A survey shows that of the total number of fans, 68% root for the home team. How many fans attending a football game are rooting for the home team?
pls tell the answers whoever gives the correct answer will be marked as brainliest
Answer:
(D)
Step-by-step explanation:
Area (shaded) = Area (large rectangle) - Area (small rectangle)
= (4x + 3)(4x - 3) - (8x + 9)(2x - 1)
= 16x² - 9 - [16x² + 18x - 8x - 9]
= -10x
The correct option is (D)
Hi, I really need help on this question for pre cal.
Answer:
Step-by-step explanation:
(a) u³, 3x² + 2
(b) 3(3x² + 2)² * 6x = 18x * (3x² + 2)²
i will give brainliest
Answer:
c=30
Step-by-step explanation:
Inverse: 22 + 8 = 30
c = 30
Answer:
c = 30
Step-by-step explanation:
Step 1: Add 8 to both sides.
[tex]c-8+8=22+8[/tex] [tex]c=30[/tex]Step 2: Check if solution is correct.
[tex]30-8=22[/tex] [tex]22=22[/tex]Therefore, the answer is c = 30.
HELPPPPPP PLEASE !!!The expected value of a random variable x is 62. The variable is
transformed by multiplying X by 3 and then adding 6 to it. Find the
expected value (mean) of the transformed variable.
Theme Park. A theme park charges $149 for guests ages 10 and over and $143 for guests ages 3 to 9. Write an algebraic expression that represents the total charge for x guests ages 10 and over and y guests ages 3 to 9.
Answer:
$149x10+$143+3-9
Step-by-step explanation:
Factor the following polynomial completely.
0.3x^2 - 3.6x + 8.1
A) 0.3(x - 3)(x - 9)
B) 0.3(x - 3)(x + 9)
C) -0.3(x^2 + 12x + 27)
D) 0.3(x^2 - 12x + 27)
Answer:
Step-by-step explanation:
hello :
divid 3.6 and 8.1 by 0.3 you have : 3.6/0.3 =12 and 8.1/0.3 =27
0.3x² - 3.6x + 8.1 = 0.3 (x²-12x+27) = 0.3(x - 3)(x - 9) ....answer A
Which expression shows 5 + 5 + 5 + 5 as multiplication?
5 × 2
5 × 4
5 × 5
5 × 10
Answer:
5 × 2= 10
5 × 4=20
5 × 5=25
5 × 10=50
5+5+5+5=20
there your answer
Step-by-step explanation:
you slow -_-
Answer : 5 x 4 (Option C)
Step-by-step explanation : 5 + 5 + 5 + 5 = 20
By trial & error method, we get
5 x 2 = 10 ≠ 20
5 x 4 = 20
5 x 5 = 25 ≠ 20
5 x 10 = 50 ≠ 20
Hence 5 x 4 is the right answer
You can either follow the trial & error method or the following method !!
5 + 5 + 5 + 5 has ' 4 ' fives
Hence, 5 + 5 + 5 + 5 = 5 (since it is the no) x 4 (since it is the no of times 5 is repeating)
Hence 5 x 4 is the right answer
{ You are requested to mark me the brainliest, if you can }
What is the product of 5 1/2 and 3 3/4?
A 22 3/8
B 21 1/4
C 20 5/8
D 15 3/8
Step-by-step explanation:
I wrote it down with steps
I hope you benefit from me
Answer:
20 5/8
Step-by-step explanation:
I need the equation for 36÷3
Answer:
12
Step-by-step explanation:
12 x 3= 36 so 36 ÷ 3= 12
WILL GIVE A LOT OF POINTS
Determine the intercepts of the line.
73 – 5 = 4y – 6
Dang. Ask ur classmates
The area of a rectangle is 75 square feet, and the length is 25 feet. What is the perimeter?
Answer:
56 feet
Step-by-step explanation:
75/25=3 feet
this is another side.
(3+25)x2+56 feets
Answer:
75ft.
Step-by-step explanation:
What you do is subtract two 25s from the area (because there are two sides for length) which gives you 25. The width would be half of that which is 12.5. Then add two widths (12.5+12.5=25), and add that to two lengths (25+25=50). The answer is 75ft as well. Please tell me if I'm wrong.
Using the graph of f(x) and g(x), where g(x) = f(k.x), determine the value of k.
-6
g(x)
f(x)
-5
3
5
-2
1
11
NI
2
Answer:
i also confused and cant answer
I need help ASAP with these questions
Answer:
The answer is 6
Step-by-step explanation:
2.3... where the 3s go on forever is the same as 2 + 1/3 or 2 & 1/3
The whole number portions add to 3+2 = 5, and we add on the carry of 1 to get 5+1 = 6
3 & 2/3 = 3 + 2/3 = 3 + 0.667 = 3.667 approximately
adding this onto 2.333 leads to
3.667 + 2.333 = 6
Technically the 6's go on forever in the decimal form of 3 & 2/3, but rounding wont have an effect on the answer when we add
For triangle ABC, find the measure of ∠C if ∠A = 50° and ∠B = 60°.
Answer:
∠C is 70°
Step-by-step explanation:
50+60=110
110+70 = 180 degree angle of a triangle
The equation 4(x – 3)2 – 5 = 139 has two solutions: one positive and one negative. What is the
negative solution?
7.
Answer:
Step-by-step explanation:
4(x-3)2-5 = 139
(4x-12)-5=139
-20x + 60 = 139
-20x +60 - (60) = 139- 60
-20x = 79 divide both sides by -20
x = -3.95
An isosceles triangle has vertices at (-5, 4), (2, 4) and (-1.5, -3.5). Each of its two congruent sides are 8.3 units long. Calculate both the area and perimeter of the triangle. Explain or show you got your answers.
Answer:
unit long
Step-by-step explanation: