Answer:
[tex] \huge \boxed{f(15) = 152 }[/tex]
Step-by-step explanation:
[tex]f(x) = 15 {x}^{2} - x + 20[/tex]
To find f(3) , substitute the value of x that's 3 into f(x). That is for every x in f(x) replace it with 3.
We have
[tex]f(15) = 15( {3})^{2} - 3 + 20 \\ \: \: = 15(9) + 17 \\ = 135 + 17 \: \\ = 152 \: \: \: \: \: \: \: \: \: \: [/tex]
We have the final answer as
[tex]f(15) = 152 [/tex]
Hope this helps you
3x + 0.8 = 18.8
solve for x
Answer:
6
Step-by-step explanation:
Answer:
6
Step-by-step explanation:
3x + .8 = 18.8
subtract .8
3x = 18
divide by 3
x = 6
I need answers as soon as possible please by
Answer:
Sorry need to do some thing else brb
Step-by-step explanation:
I NEED HELP NOW
ur really gonna need to solve this
10t-5=60
Answer:
[tex] \huge \: t = \frac{13}{2} [/tex]
Step-by-step explanation:
[tex]10t - 5 = 60[/tex]
Using the addition property add 5 to both sides of the equation
That's
[tex]10t - 5 + 5 = 60 + 5 \\ 10t = 65[/tex]
Divide both sides by 10
[tex] \frac{10t}{10} = \frac{65}{10} \\ t = \frac{65}{10} [/tex]
Reduce the fraction with 5
We have the final answer as
[tex]t = \frac{13}{2} \\ [/tex]
Hope this helps you
Answer:
t = 6.5
Step-by-step explanation:
10t - 5 = 60
Add 5 to each side
10t -5+5 = 60+5
10 t = 65
Divide each side by 10
10t/10 = 65/10
t = 6.5
8 (2x +3x +2 ) = -4x +124
Answer:
8 (2x +3x +2 ) = -4x +124 = x = 122/9
Answer:
[tex] \frac{27}{11} [/tex]
Step-by-step explanation:
8 (2x + 3x + 2) = -4x + 124
16x + 24x + 16 = -4x + 124
16x + 24x + 4x = 124 - 16
44x = 108
x =
[tex] \frac{108}{44} [/tex]
= simplifying
[tex] \frac{27}{11} [/tex]
The formula a=1w gives the area A of a rectangle with length I. What is the area in square feet of a rug with a length of 13 feet and a width of 6 feet
Answer:
78
Step-by-step explanation:
Multiply 13 by 6
Please subtract this for me and simplify
Answer:
You have to convert 4 and 1/4 to 17/4. Then, the LCM of 3 and 4 is 12, so multiply 17/4 by 3/3 and 2/3 by 4/4 to get 51/12 and 8/12. Now, subtract.
51/12 - 8/12 = 43/12. That is the final answer.
Name each polygon by its number of sides and then classify it as convex or
concave and regular or irregular.
1.
2.
3.
Answer:
The polygon has 5 sides. A polygon with 5 sides is a
pentagon.
If you draw the line containing the side it will
contain some points in the interior of the polygon. So,
the polygon is concave. Since it is concave, it is
irregular.
Step-by-step explanation:
What is the image point of (-2,5)(−2,5) after a translation left 5 units and up 3 units?
Answer:
(-7;8)
..........................
The image point will be (-7, 8)
What is translation?A translation in math moves a shape left or right and/or up or down. The translated shapes look exactly the same size as the original shape, and hence the shapes are congruent to each other. They just have been shifted in one or more directions. Since it is just moving of the shape from one place to other, there is no change in the shape.
The direction or the path of this change in position of the object can vary i.e., initially the object can move left, then turn right, and so on. While translating, all the points on the shape will shift by the same number of units. For example, if one point shifts 2 units to the right, then all the points will also move 2 units to the right.
Given:
coordinate ( -2, 5)
To translate 5 units left the x- coordinate will be
= -2 -5
= -7
and, now to shift 3 units up y- coordinate will be
=3+5
=8
Hence, the image point will be ( -7 , 8)
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what is the cube root of 64 (
[tex] \sqrt[3]{64} = x[/tex]
Rewrite 3/4 with a denominator of 12 by multiplying the top and bottom by 3
Answer:
9/12
Step-by-step explanation:
Answer:
9/12
Step-by-step explanation:
Just as the question says, you have to rewrite 3/4 with a denominator of 12, and you can do that by multiplying both the numerator (top) and denominator (bottom) by 3:
3/4 * 3 = 3(3)/4(3) = 9/12
Hope this helps :)
Morse code uses "dots" and "dashes," which are known to occur in the proportion of 3:4. This means that for any given symbol, P(dot sent) = 3/7 and P(dash sent) = 4/7. Unfortunately, when coded messages are sent, there are sometimes errors in transmission. Suppose there is interference on the transmission line, and with probability 1/8 a dot is mistakenly received as a dash, and vice versa. a) What is the probability that the received symbol is a dot?
Answer: [tex]\dfrac{25}{56}[/tex]
Step-by-step explanation:
Given: P(dot sent) = [tex]\dfrac37[/tex]
and P(dash sent) = [tex]\dfrac47[/tex]
P(dot received) = P(dot received ∩ dot sent)
+ P(dot received ∩ dash sent)
= P(dot received | dot sent)P(dot sent) + P(dash received | dash sent)P(dash sent) [By conditional probability formula]
[tex]=\dfrac78\times\dfrac37+\dfrac18\times\dfrac47=\dfrac{25}{56}[/tex]
Hence, the probability that the received symbol is a dot = [tex]\dfrac{25}{56}[/tex]
which of the following does NOT represent the legs of the sides of a right tringle
Answer:
d
Step-by-step explanation:
HELPPP PLEASEE ?????
- (x-9)
Simplify this expression
Answer:
-x + 9
Step-by-step explanation:
When there is a - in front of an expression in parentheses, change the sign of each term in the expression.
How many pounds of raisins did Priya buy if she bought the following amounts of almonds:
1.06 pounds of almonds
Round your answer to the nearest hundredth, and do not include uníts (pounds of raisins).
Answer:
2.25
Step-by-step explanation:
5.20 * 1.06 = 5.512
11.70 - 5.512 = 6.188
6.188 / 2.75 = 2.25018
Round to the nearest hundredth which equals....
2.25
what is scientific notation and why is it used ?
Scientific notation is a way of writing really big or really small numbers that take a lot of work to write out fully. Scientific notation is used because it's tiring to write out the numbers, which are usually very long. It's a way to shorten them while still knowing what the original number is.
Write the number in scientific notation. 45100
Answer:
scientific notation:
4.51 × 104
or
4.51x10^4
scientific notation with e:
4.51e4
Step-by-step explanation:
When you write scientific notation of 45100/45.1 thousand, you need to find How do you write 45100/45.1 thousand in scientific notation.
. The 45100 should be written.
Answer:
4.51 * 10^4
Step-by-step explanation:
4.51 * 10^4 = 45100
All you gotta do is move the decimal to the left until you have a number between 1-10. And how ever many spaces you jumped that's the exponent you put on the 10.
Example, 467500
I would jump 5 places to get 4.675
Since I jumped 5 places that's my exponent
4.675 * 10^5
HOpe this helps!!!
Divide up to two decimal places.
12427 by 349
explanation please! thankyou.
12427÷349
35.60744985673352
= 35.61(2d.p)
Explanation:
When you divide it you get 35.60744985673352
To leave it in to 2 decimal place, you are to consider the the third number after the point which in this case is 7. So you check if it is greater than or equal to or less than 5. If it is greater than or equal to 5 you carry forward 1 to the next digit to the left which is 0 in this case which will give you 1, then you retrieve the number plus the first two decimals after the point to get 35.61(2d.p).
Bernie got 15 out of 35 math problems correct on his test. What percent did he
get correct?
he has 42.87 correct, you have to find the percentage of one number in relation to another with the formula percentage = ( number you want to find the percentage for ÷ total) × 100. Move the decimal point two places to the right to convert from a decimal to a percentage
Need help with geometry assignments so hard parallel is so hard smart people 100% answer it pls
Sam knows that his annual homeowners insurance premium is $0.27 per $100 of value, which usually works out to be $683.10 annually. But Sam is confused by a letter from his insurance company telling him that an increase in the value of his home has led to an increase in his annual homeowners insurance premium. He is now being charged an annual premium of $720.90. Based on the increase in his annual homeowners insurance premium, what was the increase in his home's value? (Note: The cost is still $0.27 per $100, even though the annual premium went up.)
Answer:
C. $14,000
Step-by-step explanation:
If he is now being charged an annual premium of $720.90. The increase in his home's value is $14,000.
Increase in home valueIncrease in home value=[(720.90/0.27)-(683.10/0.27)]×$100
Increase in home value=(2670-2530)×$100
Increase in home value=140×$100
Increase in home value=$14,000
Therefore the increase in his home's value is $14,000.
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what is the answer to 10 x p + 7 x t
Answer:
10p +7t
Step-by-step explanation:
Hope this helps.
Plz help Can you plot the data !
9b) write the equation of your best fitting line.
9c)use your to determine how well you would do if for 4 hours
Answer:
9b y= 15.109t + 56.4
9c 116.836 in 4 hours
Step-by-step explanation:
I used a regression calculator for the first one.
I multiplied 15.109 and 4 because t is the time.
add 56.4
(I need this done ASAP thanks) Jackson has three cartons of gumballs. There are 100 boxes in each carton. There are 100 gumballs in each box. The number of gumballs Jackson has can be expressed in the form a⋅10^b, where A is a prime number and B is whole number. What are the values of A and B?
Answer:
A = 3 and B = 2
Step-by-step explanation:
Here, we are interested in giving the values for A and B
We are told that there are three cartons, with 100 gun balls in each.
The total number of gum balls Jackson have will be 100 + 100 + 100= 300
Now, we want to express 300 in the form a•10^b
Thus;
300 = 3 * 100
3 * 100 = 3 * 10^2
where A = 3 and B = 2
which situation illustrates quadratic equation?
Complete Question:
Which situation illustrates quadratic equation?
a. The length of a rectangular board is 3m longer than its width and its perimeter is 25m.
b. Joey paid at least P2,000 for the shirt and pants.The cost of pants is P700 more than the shirt.
c. A garden's length is 7m longer than its width and the area is 18 square meter.
d. A lot costbP4,000 per square meter and the area is 120 square meters.
Answer:
C.
Step-by-step explanation:
Required
Determine which option answers the question, correctly.
From the list of given options, only option c answers the question correctly.
This is shown below.
Represent
Length with l and Width with w, such that:
[tex]l = 7 + w[/tex]
Area (A) is calculated as thus:
[tex]A = l * w[/tex]
Substitute 7 + w for l and 18 for A.
This gives:
[tex]18 = (7 + w) * w[/tex]
Open Bracket
[tex]18 = 7w + w^2[/tex]
Reorder
[tex]w^2 + 7w = 18[/tex]
Subtract 18 from both sides
[tex]w^2 + 7w - 18= 18 - 18[/tex]
[tex]w^2 + 7w - 18= 0[/tex]
See that the above expression is a quadratic equation.
What are the y-intercept and the slope of the line represented in the graph?
A.
y-intercept = -4 and slope = -2
B.
y-intercept = 4 and slope = -2
C.
y-intercept = 2 and slope = 4
D.
y-intercept = 4 and slope = -4
Angellina enjoys swimming and often swims at a steady pace to burn calories. At this pace, angelinla can swim 1,700 meters in 40 minutes. Explan the unit rate in context of the situation
Answer:
h
Step-by-step explanation:
Which equation describes the line containing the points (-2,2) and (4, -2)?
A. y = 2x + 6
B. y = -2/3x + 2/3
y = y = -3/2x + 5
y = y = -2/3x + 8/3
Answer:B
Step-by-step explanation:
2a-2c=4a solve for a
Answer:
a = - c
Step-by-step explanation:
2a - 2c = 4a
- 4a - 4a
- 2a - 2c = 0
+ 2c + 2c
- 2a = 2c
/-2 /-2
a = - c
Answer:
[tex]\boxed {a = -c}[/tex]
Step-by-step explanation:
Solve for the value of [tex]a[/tex]:
[tex]2a - 2c = 4a[/tex]
-Take [tex]4a[/tex] and subtract it from [tex]2a[/tex]:
[tex]2a - 2c - 4a = 4a - 4a[/tex]
[tex]-2a - 2c = 0[/tex]
-Add both sides by [tex]2c[/tex]:
[tex]-2a - 2c + 2c = + 2c[/tex]
[tex]-2a = 2c[/tex]
-Divide both sides by [tex]-2[/tex] and dividing [tex]-2[/tex] undoes the multiplication by [tex]-2[/tex]:
[tex]\frac{-2a}{-2} = \frac{-2c}{-2}[/tex]
[tex]\boxed {a = -c}[/tex]
Therefore, the value of [tex]a[/tex] is [tex]-c[/tex].
Simplify.
-2(w+5) +6w
Answer:
4w - 10
Step-by-step explanation:
Step 1: Write expression
-2(w + 5) + 6w
Step 2: Distribute -2
-2w - 10 + 6w
Step 3: Combine like terms
4w - 10