find the number of possible positive real zeros of f(x)= -7x^4+ 49x^3+ 84x^2.
A.three
B.two or none
C.one
D.none
Solve using Substitution
y = -1x - 5
4x - 8y = 4
Answers:
Step-by-step explanations:
5. Write the slope-intercept form of an equation for a line with y-intercept 9 and
slope -3.
VAL
Answer:
y=-3x+9
Step-by-step explanation:
y=mx+b
m=slope
b=y-intercept
Elle has a sticker book with 12 pages of stickers. Her friend Erin's book has 3 times more pages. How many pages are in Erin's book?
Answer:
36 pages
Step-by-step explanation:
12 multiplied by 3 is 36
Which ordered pair would form a proportional relationship with the point graphed below?
On a coordinate plane, point (negative 20, 40) is plotted.
(–40, 20)
(–10, –20)
(15, –30)
(5, –15)
Answer:
it is c
Step-by-step explanation:
i got it right on egde
An aquarium keeps 5 fish in every 100 gallons of water. How many gallons of water are needed for 25 fish?
Answer:
500 gallons
Step-by-step explanation:
25/5=5 5*100=500
Answer:
You need 500 gallons for 25 fish
Step-by-step explanation:
If 5 fish = 100 gallons, you need to find out 25 = ? gallons.
25 ÷ 5 = 5. 100 x 5 = 500 gallons.
x/11 - 4 = 9/22
what is x
Answer:
x=97/2 or x=48.5 or 48 1/2
Answer:
x=97/2 or 2x=97
Step-by-step explanation:
hope it helps
Thirteen less than twice a number is fifteen. What is the equation? What is the number?
Hi there!
Let the unknown number be c.
Twice a number means we multiply that number by 2:
2c
Now, subtract 13:
2c-13
This expression is equal to 15:
2c-13=15
As soon as I added the equal sign, and the number than the expression is equal to, the expression turned into an equation.
Now, let's solve it for c.
2c=15+13
2c=28
c=14
Hope everything is clear :-)
Can someone help me ASAP please
Answer:
Y=2x-3
Step-by-step explanation:
Christina went to the store and spent $6.91 for her science project. She gave the cashier $9.00. Estimate the amount of change the cashier should give Christina.
Answer:
$3.09
Step-by-step explanation:
what is the distance between -3/7 and 2/8
Answer:
[tex] \frac{19}{28} [/tex]
Step-by-step explanation:
distance between -3/7 and 2/8
[tex] = \frac{2}{8} - \bigg( - \frac{3}{7} \bigg) \\ \\ = \frac{2}{8} + \frac{3}{7} \\ \\ = \frac{2 \times 7}{8 \times 7} + \frac{3 \times 8}{7 \times 8} \\ \\ = \frac{14}{56} + \frac{24}{56} \\ \\ = \frac{14 + 24}{56} \\ \\ = \frac{38}{56} \\ \\ = \frac{19}{28} [/tex]
Which value of x makes the equation 0.75(x + 20) = 2 + 0.5(x − 2) true?
Answer:
I think there is a mistake somwhere . Please can someone else try it out
Answer:-56
hope this helps
This I really need help ASAP
Answer:
B
Step-by-step explanation:
please can someone help asap this hw is due in a few hours
Answer:
.05 euro for each 1 pack of small, around .051 euro for each medium, and around .052 euro for 30
Step-by-step explanation:
best to go for the small pack. ill be .50 euros to get 10 small packs, .51 euros to get 10 medium packs, and .52 euros to get 1- big packs
This is my best guess, so don"t be rewarding me yet till you get it right
(this is the skeleton in your closet saying don"t forget to thank your gifts
What do the horizontal lines in an elevation-versus-time graph mean?
8-9 tpe when m=2,0-2,07
Answer:
M. Code indicating an agency's program for which the PGA data set is related. ... Theft Prevention Equipment (TPE) Item – the replacement motor vehicle ... 1 2 3 4 5 6 7 8 9. 80. O I. H E A D L A M
Step-by-step explanation:
A theater is presenting a program on drinking and driving for students and their parents or other responsible adults. The proceeds will be donated to a local alcohol information center. Admission is for adults and for students. However, this situation has two constraints: The theater can hold no more than people and for every two adults, there must be at least one student. How many adults and students should attend to raise the maximum amount of money?
solve for a and b
(6a-3)=(7b-10)
Answer:
for A=[tex]\frac{7b-7}{6}[/tex] and for B=[tex]\frac{6a+7}{7}[/tex]
Step-by-step explanation:
For A
[tex]\left(6a-3\right)=\left(7b-10\right)[/tex]
[tex]6a-3+3=7b-10+3[/tex]
[tex]6a=7b-7[/tex]
[tex]\frac{6a}{6}=\frac{7b}{6}-\frac{7}{6}[/tex]
[tex]a=\frac{7b-7}{6}[/tex]
For B
[tex]\left(6a-3\right)=\left(7b-10\right)[/tex]
[tex]7b-10=\left(6a-3\right)[/tex]
[tex]7b-10=6a-3[/tex]
[tex]7b-10+10=6a-3+10[/tex]
[tex]7b=6a+7[/tex]
[tex]\frac{7b}{7}=\frac{6a}{7}+\frac{7}{7}[/tex]
[tex]b=\frac{6a+7}{7}[/tex]
whats 2+34233-2943+291*45=
what the anwser??????????????
Answer:
44387
Step-by-step explanation:
Answer:
1421235
Step-by-step explanation:
2 + 34233 = 34235 - 2943 = 31292 + 291 = 31583 x 45 = 1421235
2 + 34233 = 34235 - 2943 = 31292 + 291 = 31583 ➗ 45 = 701.844444444
If its multiplication the answer is = 1421235
If division the answer is = 701.844444444 (calculator) or 701 r 38 (my brain)
Question: 11.23 x 10 to the power of 5, the answer is 11.2300000.
Explanation: multiple 10 x 10 x 10 x 10 x 10 = 10,000, then multiple 11.23 x 10,000 = 112300000, add the decimal places = 11.2300000.
Question: 11/20 a repeating or terminating decimal,
Answer: is terminating.
Question: 7 * 73 + 43, the answer is 554.
Explanation: multiple 7 x 73 = 511 + 43 = 554. If division then divide 7 into 73 = 10.4285714286 + 43 = 53.4285714286 (calculator answer). 7 into 73 = 1 r 3 = 1.3 + 43 = 44.3 or 44 r 3 (my brain answer).
I know some of the questions arent part of the asked one, but the plataform didnt let me answer them any but here.
I know I asnwered it too late, sorry.
If y varies directly as x squared and y = 72 when x =3, what is the value of y when x = 6? a. 18 b. 24 c. 288 d. 144 Please select the best answer from the choices provided A B C D
Answer:
it b why becaus
Step-by-step explanation:
Answer:
The answer is C. 288
Just took the test
Step-by-step explanation:
What value of x makes this equation true?
5(x + 4) = 3x + 28
A. 4
B. 6
C.
12
D. 24
if AB=6x-7 and BC=5x-3 find AC
Answer:
AC= AB+BC
= 6x-7+ 5x-3
= 11x-10
-10 = -b/4
solve for b, show steps please
Answer:
b = 40
Step-by-step explanation:
-b/4 = - 10 Multiply both sides by 4
-b/4 * 4 = - 10 * 4
- b = - 40 Multiply both sides by -1
(-1) * (-b) = (-40)(-1)
b = 40
The formula A=lw gives the
area A of a rectangle with
length 1. What is the area in
square feet of a rug with a
length of 13 feet and width of
6 feet?
Answer:
78 ft^2
Step-by-step explanation:
A = lw
l = 13 ft
w = 6 ft
A = 13ft x 6 ft
A = 78 ft^2
Multiply the length by width to find Area. The unit for Area will be feet squared because both the numbers for length and width had the same unit.
The ray XZ is the angle bisector of ∠WXY and m∠WXY = 160°. Enter m∠WXZ.
The measure of ∠WXZ is
Answer: 80°
Step-by-step explanation: divide 160° in half
If x represents a number, write an expression that represents a number 10 greater than x
Answer:
Step-by-step explanation:
I NEED HELP PLEASE;(
Dinkel's Bakery is having a sale on pumpkin pies. Each pie is cut into 8 pieces. If they have 2 (1/8) pies left, and Ms. Harte purchases 1(3/8) pies for her HR, how many pies will be left?
Answer:
3/4ths im pretty sure
Step-by-step explanation:
2 1/8 ------- 1 9/8
- 1 3/8------- - 1 3/8
_______ ______
6/8= 3/4
Help me solve this problem please
Answer:
I am assuming that you are talking about problem 2. so I will answer that.
Step-by-step explanation:
-2x + 6 ≥ 3x - 34
+2x +2x
6 ≥ 5x - 34
+34 + 34
40 ≥ 5x
÷5 ÷5
8 ≥ x
So, x can be anything equal to or less than 8.
Answer:
x≤8
For the graph closed circle on 8 with the shading going to to left
Step-by-step explanation:
-2x+6≥3x-34 (given)
Subtract 6 on both sides
-2x≥3x-40
Subtract 3x on both sides
-5x≥-40
Divide by -5 on both sides
x≤8
*The sign flips because you divided by a negative (-5x)
You are researching the average emails received per day. You want to know how many employees you should survey if you want to know, at a 90% confidence level, that the sample mean emails per day is within 47 emails of the true mean emails per day. From above, we know that the population standard deviation is 155, and z-value is 1.645$_
Answer:
The value is [tex]n =29 \ employees [/tex]
Step-by-step explanation:
Generally the number of employee to survey(sample size) is mathematically represented as
[tex]n = [ \frac{z * \sigma }{E} ]^2[/tex]
Here E is the margin of error which is given as E = 47
So substituting 1.645 for z and 155 for [tex] \sigma[/tex]
[tex]n = [ \frac{1.645 * 155 }{47} ]^2[/tex]
=> [tex]n =29 \ employees [/tex]
1) On a road map, the distance from Louisville to St. Louis is 12 cm. If the map has
a scale of 2 cm = 20 miles, what is the distance to St. Louis?
120 miles.
All you have to do to understand this problem is the relationship between the cm and mi.
In this case:
2cm =20mi.
The relationship is times 10, because 2 x 10=20
So multiply 12 by 10, and you will get 120mi.
Therefore, the answer is 120mi.
Please mark branliest if this helped.
Thank you