Answer:
5
Step-by-step explanation:
f(-5)=-(-5)^2 - 7(-5) - 5
f(-5)= -25 +35 - 5
f(-5) = -25 +30
f(-5) = 5
Answer:
5
Step-by-step explanation:
if f(-5)
-x^2-7x-5
-(-5)^2-7(-5)-5
-25+35-5
5
The cost of setting the type for a pamphlet is $15 and the cost of paper and printing is 25 cents per copy .How much will it cost for 200 copies
Answer:
$65
Step-by-step explanation:
It has a fee of $15. If each copy is $.25 each and 200 copies are wanted, multiply them together to get 50. Add 50 and 15 to get 65. It cost $65 for 200 copies.
Simplify the expression.
20(p + 2) + 16(-3 - p)
Mr. Win owns a toy store. He wants to display 12 new motion toys in the store window. Each toy uses 3 batteries. If N represents the total number of batteries he needs, which sentence is correct?
Answer: See explanation
Step-by-step explanation:
You didn't state the sentences but let me help out based on the information given.
Number of new motion toys = 12
Number of batteries used by each toy = 3
Since N represents the total number of batteries he need, the value of N will be:
= Number of toys × Number of batteries used by each toy
= 12 × 3
= 36
That means N equals 36.
What is the rate of change for -8x-4y=10-2x+6y
Answer:
X7
Step-by-step explanation:kk
Which equation can be used to represent the statement? Half of a number minus seven is one and five-tenths. One-half + x = 1.5 One-half x minus 1.5 = 7 StartFraction x over 2 EndFraction minus 7 = 1.5 7 minus StartFraction x over 2 EndFraction = 1.5
Given:
Statement is "Half of a number minus seven is one and five-tenths."
To find:
The equation for the given statement.
Solution:
Let the unknown number be x.
Half of a number : [tex]\dfrac{x}{2}[/tex]
Half of a number minus seven : [tex]\dfrac{x}{2}-7[/tex]
One and five-tenths : [tex]1\dfrac{5}{10}=1.5[/tex]
Half of a number minus seven is one and five-tenths:
[tex]\dfrac{x}{2}-7=1.5[/tex]
The required equation for the given statement is [tex]\dfrac{x}{2}-7=1.5[/tex].
Therefore, the correct option is C.
Answer:
its c
Step-by-step explanation:
7x-5=2x SOLVE THE PROBLEM
Answer:
x = -17.5
Step-by-step explanation:
7x-5= -35
-35/2 = -17.5
Answer: The answer is x=1.
Step-by-step explanation: To solve this problem you’ll need to isolate the variable by dividing each side by factors that don't contain the variable.
A firecracker is fired straight up into the air out of a window of a building. Its height, in meters, is given by h = − 5 t 2 + 30 t + 20 , where t is the time, in seconds, the fircracker has been in the air.
Answer:
See explanation
Step-by-step explanation:
Given that the equation for the firecracker is h = − 5 t^2 + 30 t + 20
It is impossible to solve this question unless the height (h) in meters is supplied. If the height was supplied, we could set up the quadratic equation and solve it yielding two values for the time. The values of t obtained is the time in seconds required for the firecracker to reach the given height h.
You can apply these tips and solve the question seamlessly.
Jenna collected data on how many CDs her friends owned and how many hours per week they listened to music. Her data is shown in the table.
CDs Owned
15/15/8/18/11
Hours Listened 7 8 5 10 9
Which scatter plot correctly represents this data?
ОА
Ос.
new
CDS Ow
12 16
CDs Owned
Ов.
OD.
CDs Owned
CDs Owned
Answer:
im pretty sure it would be d
Step-by-step explanation:
Answer:
It is D
Step-by-step explanation:
got it right on the test
if anils hieght was 150cm and amans height was 100cm then the ratio of their heights would be
Answer:
3/2 or 150%
Step-by-step explanation:
150:100 = 150/100 = 15/10 = 3/2
In other words, 150%
Stephon went to the Griffin Fair with $25.50. He bought a hot dog and a drink for $4.25, and he wanted to spend the rest of his money on ride tickets which cost $1.25 each. What is the maximum number of ride tickets that he can buy?
17
Step-by-step explanation:
$25.50-$4.25=$21.5 [ 21.5 is the mony he has left after he bought the food]
$21.25÷$1.25=17 [we will divide the rest of his mony with the cost of 1 ticket so we can get how many tickets he can buy]
In the diagram, PT is parallel to QR. What is the measure of angle PQR in degrees?
Answer:
116 degrees
Step-by-step explanation:
What is an equation of the line with slope 6 and y-intercept -4 in slope-intercept form?
Answer: y = 6x-4
Step-by-step explanation:
The formula for slope-intercept is y=mx+b so all you have to do is plug in the slope which is m and plug in the y intercept which would be b
Please need helppppp
Answer:
90 degrees
Step-by-step explanation:
Which expression is equivalent to x-4?
Answer:
c) [tex](1/x)^{4}[/tex]
Step-by-step explanation:
[tex](1/x)^{4}[/tex] = [tex]1^{4} /x^{4}[/tex]
=> 1 /[tex]x^{4}[/tex]
=> [tex]x^{-4}[/tex]
If my answer helped, kindly marl me as the brainleist!!
Answer:
Choice C. X^-2 + x^-2
Step-by-step explanation:
When u have exponents u either add them or subtract them.
Here u just do -2 + -2 which gives u an exponent of x^-4.
what is the reciprocal of 4, 5/2, and 1/2
Answer:
1/4 2/5 2/1
Step-by-step explanation:
repcpical means you flip them upside down
Answer:
[tex]\frac{1}{4}[/tex], [tex]\frac{2}{5}[/tex], [tex]and[/tex] [tex]\frac{2}{1}[/tex]
Step-by-step explanation:
Remember, to find the reciprocal of a fraction, you just have to switch the 2 numbers into the opposite place.
Q1: [tex]\frac{4}{1}[/tex] ⇒ [tex]\frac{1}{4}[/tex]
Q2: [tex]\frac{5}{2}[/tex] ⇒ [tex]\frac{2}{5}[/tex]
Q3: [tex]\frac{1}{2}[/tex] ⇒ [tex]\frac{2}{1}[/tex]
Hope this helps! <3
please help! it’s a true or false question plssss!
Answer:
True
Step-by-step explanation:
Help me you guys
ILYG
Answer:
7
Step-by-step explanation:
The answer is 7
Answer:
It's 7
Hope this helped!
Plz don’t take s these points if u don’t know how to do these math I just need help I wanna pull up my grade :(
Answer: For The first Picture I think the Surface area is 234in^2
For the second picture 72in^2
For the third picture 102in^2
Step-by-step explanation:
Answer:
234
192
102
Step-by-step explanation:
What percent of 50 is 15?
A. 4%
B. 25%
C. 30%
D. 15%
30% is the answer........
Answer:
Option C 30%
Step-by-step explanation:
let x%of 50 is 15
X/100×50=15
50x/100=15
X/2=15
X=30
So option C. (30%) is correct
what additional information is needed that the following triangle are congruent by SSS
Answer:
Side ACwith DF
Step-by-step explanation:
-13/20 - 7/5 = what
Answer:
Step-by-step explanation:
-13/20 - 7/5= -41/20 or -2 1/20 or -2.05
does anyone know what 3.2 ÷ 0 ???
Answer:
Infinity
Step-by-step explanation:
Look it up, its how it works. 0 can go into 3.2 infinity times.
need to be taught how to do this, thanks
Answer:
x = 36.27
Step-by-step explanation:
By using the steps to find sin θ backwards, we can find x, the hypotenuse.
sin θ = [tex]\frac{opposite}{hypotenuse}[/tex] or side [tex]\frac{a}{c}[/tex] (as seen in my example picture).
We already know the value for sin (α), which is 32° because its given. The opposite side (a) is 20 and the hypotenuse side (c) is x which are both also given.
So the equation now looks like:
sin 32° = [tex]\frac{20}{x}[/tex]
Don't solve for the sin 32 yet! First, we have to isolate the variable.
To get rid of the x in the denominator you have to multiply both sides by x:
( sin 32 ) · x = ( [tex]\frac{20}{x}[/tex] ) · x
( sin 32 ) x = 20
Then, you have to divide both sides by sin 32 to get x by itself:
(( sin 32 ) x ) ÷ ( sin 32 ) = 20 ÷ ( sin 32 )
x = 20 ÷ ( sin 32 )
Lastly, you have to use a calculator to find 20 ÷ ( sin 32 ), and it should give you 36.2695543766.
The question asks you to round to 2 decimal places so:
x = 36.27
Can somebody please help me with this math question
What percent of the model is shaded? What is the equivalent ratio? What is the equivalent decimal? What is the equivalent fraction?
Answer:
73 73/100 0.73 73/100
Step-by-step explanation:
hope this helps
73% of the model is shaded, 146/200 is the equivalent ratio.0.73 is the equivalent decimal and 146/200 is the equivalent fraction
What is Fraction?A fraction represents a part of a whole.
Given,
A grid model with 100 squares. 73 squares are shaded.
We need to find percent of the model is shaded
As there are 100 grids with 73 shaded.
73% of the model is shaded
Now let us find equivalent ratio of 73/100
Multiply numerator and denominator 2
73/100×2/2
146/200
146/200 is the equivalent ratio.
73/100=0.73 is the equivalent decimal.
146/200 is the equivalent fraction.
Hence,73% of the model is shaded, 146/200 is the equivalent ratio.0.73 is the equivalent decimal and 146/200 is the equivalent fraction.
To learn more on Fractions click:
https://brainly.com/question/10354322
#SPJ2
Help with this one question please
Answer:
x [tex]\leq[/tex] 6
Place a 0 in the center of your line. Mark 6 units to the right and fill in a circle at the number 6. Then draw an arrow starting at the number 6 to the left. This should all be done on the line aka your graph.
Step-by-step explanation:
Expand
2x + 6 [tex]\leq[/tex] 18
Solve for x
2x [tex]\leq[/tex] 12
x [tex]\leq[/tex] 6
Everything is shown below (the answer and step-by-step explanation):
X-X=
write the solution too.
Answer:
0
Step-by-step explanation:
X-X
=0
What is the slope of the line through (-7, -8) and (0,4)
A jacket was on sale for 20% off its original price of $60. Now, it is on sale for an additional 10% off its previous sale price. Determine whether each statement is true or false. True False The jacket is now 40% off its original price. The jacket now costs $48.00. The jacket is now 72% of its original price. The jacket now costs $43.20.
Answer:
Step-by-step explanation:
Step one:
given
original price= $60
discount =20% of 60
discount = 20/100*60
discount = 0.2*60
discount = $12
selling price= 60-12= $48
Added price= 10% off $48
Added price= 10/100 *48
Added price= 0.1 *48
Added price= $4.8
new price= 4.8-48=$43.2
the new price of the jacket is $43.2
1. The jacket is now 40% off its original price
40/100*60=$24-----False
2. The jacket now costs $48.00-----False
3. The jacket is now 72% of its original price= 72/100*60=$43.2----True
4. The jacket now costs $43.20------True
help ASAP plssssssssss
Answer:
Length of three dimensions of the cube is
6cm.
What is the area of the base of a cube of sides 2.5m?
37.5m²