Step-by-step explanation:
f(x)= 2x² + 5x – 3, then what is f(–2)?. Possible Answers:. – 137.
The volume of this rectangular prism is 8 cubic feet. What is the surface area?
Answer:
28
Step-by-step explanation:
V = 4 * 1 * b = 8
b = 2
SA = 2(4 + 1) * 2 + 2(4)1)
SA = 28
Answer: 28 ft²
Answer:
28 = surface area
Step-by-step explanation:
b is 2
have a great day!
It’s all there in the picture will give brainlest to correct answer
Answer:
1. 10
2. 1 and 18
3. 17
4. 8
Which pair of segments must be parallel? A. AB and CD B. AB and GH C. CD and EF D. EF and GH
Answer:
G and H
Step-by-step explanation:
though with that being said i may be wrong (im not scamming like other users with random answers im being for real)
What is the measure of X , in degrees?
Answer:
71°
Step-by-step explanation:
The angle of x and angle of 109, are supplementary, which means when added they are equal to 180 degrees.
109 + x = 180
x = 180 - 109
x = 71
Answer:
Because segments XY and XZ are of equal length, angle Y and angle Z must be congruent.
All inner angles must add to 180 degrees since it's a triangle.
70+70+x=180
140+x=180
x=40
Step-by-step explanation:
3 dogs plus 5 cats cost $365. 5 dogs plus 3 cats cost $491. What is the cost of one cat?
Answer:
Solution given;
let dogs be d and cats be c.
according to the question
3 d +5 c =$365........[1]
5d+3c=$491.............[2]
By doing elimination method
multiplying equation 1 by 5 and equation 2 by 3 and subtracting
we get
15d+25c=$365*5
15d+9c=$491*3
- - -
____________
;16c=$352
c=[tex] \frac{352}{16} [/tex]=$22
the cost of one cat is $22.
What is the vertex of the parabola with equation y = 3x2 + 1?
Answer:
Step-by-step explanation:
7(x+4)=-21 what is the value of x
Answer:
x= -7
Step-by-step explanation:
x+4= -3
x= -3-4
x= -3+(-4)
x= -7
Answer:
fist multiply x and 4 by 7 then subtract 28 from -21 which gives you 7 and 7 divided by 7 equals 1
Please help meee
plz tell me where the put the points also and what to write
Step-by-step explanation:
number of 1 2 3 4
pages
number of 4 8 12 16
photos
i hope it helps
Please help!
Due soon...
Answer:
1: 233 m
2: 466 m
3: 241.87 m
4: 483.72
Step-by-step explanation:
The Pythagorean Theorem states that a^2 + b^2 = c^2, in which c is the hypotenuse (in this case, PQ and RS).
1: 105^2 + 208^2 = 54289, square root of 54289 = 233
2: Since the area of the triangle makes up half of the rectangle, multiply the area by 2 to get 466
3: 120^2 + 210^2 = 58500, square root of 58500 is 241.87
4: Multiply by 2 to get 483.72
HELP IM GOING TO HAVE A MENTAL BREAKDOWN
Find the values of x and y that make these triangles congruent by the HL Theorem.
Answer:
x = 3 ; y=2
Step-by-step explanation:
to simplify the work we can build a system of two equations
2x+3 = 3y+3
x = y+1
we can now substitute the value of x in the first equation
2(y+1)+3 = 3y+3
2y + 2 + 3 = 3y+3
2y + 5 = 3y+3
y = 2
now we can subisitute the value of y in the first equation
x = 2 + 1 = 3
Verify
2(3)+3 = 6+3 = 9
3(2) + 3 = 6 + 3 = 9
3
2+1 = 3
Which measurement can be used to describe the size of an angle
Answer:
Step-by-step explanation:
degrees
Someone help please!!! I’ll give brainliest
Answer:
352
Step-by-step explanation:
originally 351.86 but 352 when rounded
ect the correct answer.
Which of the following graphs represents the equation below?
Help with math I am bad at it so if you could help me thank you
Answer:
The probability that Tara will select a blue marble from each bag is [tex]\frac{2}{27}[/tex].
Step-by-step explanation:
Since there are 15 marbles in the first bag and 9 marbles in the second bag, that means there are a total of 135 different combinations of one marble from each bag. Since there are 5 blue marbles in the first bag and 2 blue marbles in the second bag, there are 10 different possible combinations of one blue marble from each bag. The probability that Tara will select a blue marble from each bag can be represented as [tex]\frac{10}{135}[/tex] or [tex]\frac{2}{27}[/tex].
Anyone help me with this please!!
The data given for a football kicked from the field follows a quadratic model, h(x) = - 3x2 + 18x + 7. Where h(t) is the height in feet and t is the in seconds. Using this model, what is the maximum height the ball will reach?
43 ft
7 ft
34 ft
17 ft
Answer:
C) 34
Step-by-step explanation:
use -b/2a to find the x value of the vertex (3)
then plug 3 into equation
- 3(3)² + 18(3) + 7
the answer is 34
The two-way frequency table shows the work performance ratings for a random sample of Which statement is correct?
Select one:
O Most males received a rating of 4.
O The fewest number of employees received a rating of 1.
O Most females received a rating of 3.
О The largest number of employees received a rating of 3.
Answer:
The fewest amount of employees received a rating of 1.
Step-by-step explanation:
Give the restrictions on the domain (the excluded values) of
5x-10/5x2 +5x-30
Answer: x = -3 and x = 2
Step-by-step explanation:
Will mark brainlist for correct answer
Answer:
I would say not here D.
Step-by-step explanation:
Because I found the area of the base first *the square* which is 4 x 11 = 44 and the rectangles are 4 x 14= 56 x 2 since there are 2 rectangles is 112. Then the triangles are 11x14=154/2=77 x 2 since there are 2 triangles is 154. Then we add up all those numbers 44+112+154= 310 not 308 *C*.
Hope I was able to help!
use the picture to write each ratio as a simplified fraction (how are you going to find the length of the third side?) show your thinking
Answer:
See belowStep-by-step explanation:
to figure out the ratios we must figure out the length of hypotenuse first to do so we can consider Pythagoras theorem given by
[tex] \displaystyle {a}^{2} + {b}^{2} = {c}^{2} [/tex]
[tex] \displaystyle \implies c = \sqrt{ {a}^{2} + {b}^{2} } [/tex]
substitute:
[tex] \displaystyle c = \sqrt{ {12}^{2} + {9}^{2} } [/tex]
simplify squares:
[tex] \displaystyle c = \sqrt{ 225 } [/tex]
simplify square root:
[tex] \displaystyle c = 15[/tex]
now recall that,
[tex] \displaystyle \sin( \theta) = \frac{opp}{hypo} [/tex][tex] \displaystyle\cos( \theta) = \frac{adj}{hypo} [/tex][tex] \displaystyle \tan( \theta) = \frac{opp}{adj} [/tex]the ratios with respect to angle w given by
[tex] \displaystyle \sin( W) = \frac{12}{15} = \frac{4}{5} [/tex][tex] \displaystyle \cos(W) = \frac{9}{15} = \frac{3}{5} [/tex][tex] \displaystyle \tan( W) = \frac{12}{9} = \frac{4}{3} [/tex]the following ratio with respect to angle X
[tex] \displaystyle \sin(X) = \frac{9}{15} = \frac{3}{5} [/tex][tex] \displaystyle \cos(X) = \frac{12}{15} = \frac{4}{5} [/tex][tex] \displaystyle \tan( X) = \frac{9}{12} = \frac{3}{4} [/tex]A local government wants to test a theory about the amount of water consumed by elderly people compared to young people. If the government uses a stratified random sample, what is an appropriate method for grouping the population? A. Group by the number of houses in each street. B. Group by ZIP code. C. Group by the amount of water stored by each house. D. Group by the members in each family.
Answer:
group by each member in each family. I got a 100%
Step-by-step explanation:
Answer:
group by each member in each family.
Step-by-step explanation:
B is the midpoint of AC, if AB=2x+1 and BC= 3x-4, what is x? What is the measure of BC? What is the measure of AC?
Answer:
ayaw pag salig og brainly lods
solve the equation using square roots. round your solutions to the nearest hundredth. 5x^2+2=6
From a barrel of colored marbles, you randomly select 1 blue 6 yellow 7 red 4 green and 6 purple marbles
Complete question :
From a barrel of colored marbles, you randomly select 1 blue 6 yellow 7 red 4 green and 6 purple marbles. Find the experimental probability of randomly selecting a marble that is NOT yellow.
Answer:
Step-by-step explanation:
Total number of marbles :
Blue = 1 ; yellow = 6 ; red = 7 ; green = 4 ; purple = 6
Total = (1 + 6 + 7 + 4 + 6) = 24 marbles
Probability of selecting marble that is not yellow :
Number of marbles that aren't yellow / total number of marbles
Marbles that aren't yellow = 24 - 6 = 18
P(selecting a marble that isn't yellow) = 18 / 24 = 3/4
Aaron has 13 dimes and 10 quarters. Emily has the same amount of money as Aaron, but she only has nickels and dimes.
If Emily has 46 coins, how many nickels and dimes does she have?
A
7 nickels; 41 dimes
B
16 nickels; 30 dimes
C
30 nickels; 16 dimes
D
41 nickels; 7 dimes
Answer:
B
Step-by-step explanation:
Aaron has $3.80. Emily has 16 nickels and 30 dimes, which equals $3.80.
Find the volume of the solid.
The volume of the solid is____
cubic centimeters.
Please help me pleaseeee
Answer:
18
Step-by-step explanation:
n=(6*42)/14
n=252/14
n=18
Explain box and whisker and how does it work?
a box plot is a graph that summarizes numerical data based on quartiles, which divide a data set into fourths
help! I'll mark as brainliest
Answer:
25°
Step-by-step explanation:
First, Half of a full circle is 180°. So You want to add 125 + 35, which will get you 155. Now, You need to subtract 180 - 155. You will get 25. Hope this helps!
Answer:
Hello! answer: x = 20
Because 20 + 20 + 35 + 35 + 125 + 125 = 360
Hope that helps!
Question #12: What is the mean absolute deviation of Hailey's science
scores? 70 82 84 94 *