How can we use “log” to find exact values?
Answer:
The logarithm is the inverse function to exponentiation. That means the logarithm of a given number x is the exponent to which another fixed number, the base b, must be raised, to produce that number x.
Step-by-step explanation:
Logarithms are a convenient way to express large numbers. (The base-10 logarithm of a number is roughly the number of digits in that number, for example.) Slide rules work because adding and subtracting logarithms is equivalent to multiplication and division. (This benefit is slightly less important today.)
6 The temperature at Wonder Lake is 12°F. During a storm, the temperature changes by -26°F. What is the temperature after the storm show your work
Answer:
-14
Step-by-step explanation: 12+(-26)= -14
You add 12 into -26 and get -14. OR you can subtract -26 by 12 and still get the same answer but adding is faster and easier.
A sofa is on sale for 32% off. The sale price is $527.
What is the regular price?
Answer:
$1646.875
I hope this helps!
describe the figure EFGH that result from a dilation using center A and scale factor 1/2.
Select all that are true about the polygon ABCD and EFGH
1. C’(4,10)
2. C’D is half of CD
3. Measure A is 60 degrees therefore A’ is 30 degrees
4. Polygon ABCD is similar to polygon EFGH
5. D’ is (3,5)
6. Polygon ABCD is congruent to polygon EFGH
Answer:
6.polygon ABCD is congruent to polygon EFGH
and rates: word problems ZB9
Last summer, the Abrams family had a 30-gallon baby pool that they could fill in just 2
minutes. This summer, they purchased a larger kiddie pool that holds 150 gallons of water.
If the Abrams fill the larger pool at the same rate, how long will it take to fill it?
Answer:
10 mins
Explanation:
Because it takes 2 minutes to fill a 30 gal pool, and 150/30=5, 2 x 5 = 10 giving you the answer of 10 mins to fill a 150 gal pool.
Time taken to fill the larger kiddie pool that holds 150 gallons of water is 10 minutes.
Given that, the Abrams family had a 30 gallon baby pool that could fill in just 2 minutes.
What is the unitary method?The unitary method is a technique for solving a problem by first finding the value of a single unit, and then finding the necessary value by multiplying the single unit value.
Now, rate of filling the pool = 30/2
= 15 gallons per minute
So, time taken to fill 150 gallons of water
= 150/15
=10 minutes
Therefore, time taken to fill the larger kiddie pool that holds 150 gallons of water is 10 minutes.
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Katherine uses $\frac{7}{10}$ of a gallon of red paint to paint $\frac{3}{5}$ of her wall. How many gallons of red paint will she use to paint her whole wall? There is no 5/5
Answer:
1.167 gallons
Step-by-step explanation:
Given that:
Fraction of red paint used = 7/10 of a gallon
Fraction of wall painted = 3/5
Gallon of paint required to paint the entire wall:
Fraction of entire wall = 1/1
7/10 paint = 3/5 wall
x paint = 1 wall
Cross multiply
(3/5)x = 7/10
Divide both sides by 3/5
3/5x ÷ 3/5 = 7/10 ÷ 3/5
(3/5)x * 5/3 = 7/10 * 5/3
x = 35 / 30
x = 7/6 = 1.167 gallons of red paint
Write an equation of a line given the point (2,6) and a slope of 4,
Answer:
y=4x-2
Step-by-step explanation:
y=mx+b
plug in known variables
6=(4)(2)+b
simplify
b=-2
plug in m and b
y=4x-2
what is the square root of 24.
Answer:4.898979486
Step-by-step explanation:
Answer:
The square root of 24 is; 4.898... when you round it it's going to be 4.900 so that's the square root cause it doesn't have an exact square root.
Jason has a lemonade stand but he already made $26 he charges his customers one dollar per lemonade Kaylee has a lemonade stand where she made $16 and she charges the customers two dollars per lemonade which equation shows the number of lemonade, eggs, Kaylee needs to sell to make a higher profit than Jason. A. 26-x<16-2x. B. X+26<2x+16 C. 26+2x>16+x D. 16x+2>26x+1
Answer: B. X+26<2x+16
Step-by-step explanation:
Let x be the number of lemonade Kaylee needs to sell to make a higher profit than Jason.
Given: Jason has made $26. he charge $1 per lemonade.
Total earnings after x lemonades = $26+($1) x
= $(26+x)
Kaylee has made $16. he charge $2 per lemonade.
Total earnings after x lemonades = $16+($2) x
= $(16+2x)
Required inequality : (16+2x)> (26+x)
i.e. correct option is B.
The point (0, –4) is located . A coordinate plane.
Answer:
On the x- axis
Step-by-step explanation:
HELP ASAP
what is the domain of the function shown on the graph?
Which expression is equivalent to 63.56 + (–81.47)?
63.56 – 81.47
63.56 + 81.47
–63.56 – 81.47
–63.56 + 81.47
Answer:
A.
Step-by-step explanation:
Edge 2020
A sixth-grade class is painting a mural. To make a darker shade of orange, they use a ratio of 5 ounces of red paint to 3
ounces of yellow paint. Use this ratio to consider the amount of yellow paint needed for each amount of red paint listed in the table.
Point Red Paint, x
(ounces) Yellow Paint, y
(ounces)
A
5
B
15
C
20
Determine ordered pairs for points A
, B, and C
, and graph the relationship of the amount of red paint to the amount of yellow paint on the coordinate plane.
Click on the grid to plot the three points.
Answer:
I think its B
Step-by-step explanation:
Find the missing number in the following equation.
k x 78 = 117
k = 1.5
k = 195
k = 39
Answer:
k=1.5
Step-by-step explanation:
[tex]k = 117 \div 78 = 1.5 [/tex]
what is the distance betwen (–3, –6) and (–3, 1)
Answer:
the square root of 7
Step-by-step explanation:
( -3 + 3 ) + ( 1 + 6 )
0 + 7
7
Mr. Dennis has 15.96 pounds of rice in his kitchen. He then goes and buys
more rice, and now had 23.75 pounds. What was the percent change in
the amount of rice in his kitchen? *
Find the value of g when 59+ 12 equals 29 + 18.
Answer:
i dont know if you typed this correctly but 59+12=29+18 is false
Step-by-step explanation:
i know if what your looking for but o well
Can someone help with this plz
Answer:
49°
Step-by-step explanation:
I hope it helps
Please help :((((( only if you know though pls.
Answer:
[tex]x=14[/tex]
Step-by-step explanation:
The angles of a triangle add to 180, add the angles and solve for x
Answer:
x = 14
Step-by-step explanation:
3x + 9 + 5x - 1 + 4x + 4 = 180 because triangles have 180 degrees
12x + 12 = 180
180 - 12 = 168
12x = 168
168/12 = 14
x = 14
Brittney found a swimsuit that she wanted to buy with a price tag marked $80. The sign above it indicated that this price was 20% off. What was the original price of the swimsuit?
Answer:
$60
Step-by-step explanation:
because 20 percent of 80 is 20 so 80-20 = 60.
Answer:
$60
Step-by-step explanation:
because 20 percent of 80 is 20 so 80-20 = 60.
what is slope intercept form?
Answer:
y=mx+b
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Which number has the same absolute value as -2?
0
-1/2
1/2
2
Answer:
2
Step-by-step explanation:
The absolute value of a positive is that same number
For example the absolute value of 4 is 4
The absolute value of a negative is that same number without the negative sign.
For example, the absolute value of -4 is 4
PLEAZZZZZZZZZZZ HELPPPPPPP will mark brainlist
The table compares the main course and the side dish each person in Hiroki's family ordered at a restaurant.
Can the side dish be represented as a function of the main course?
Main course Side dish
Pasta primavera Salad
Fish Rice
Burger Potato chips
Fish Rice
Veggie burger Salad
Burger Potato chips
Pasta primavera Salad
Burrito Rice
Answer Choices
Yes (A)
or No (B)
Answer:
I know I'm late but the answer is yes!
Step-by-step explanation:
I got it correct on Khan academy:)
Answer:
Yes
Step-by-step explanation:
Khan academy:
Which of the following is correct
The average height of 18-year-old American women is 64.2 inches. You wonder whether the mean height of this year's female graduates from your local high school is different from the national average. You measure an SRS of 78 female graduates and find that x¯¯¯ = 63.1 inches. What are your null and alternative hypotheses? Note: Type in "mu" as the substitute for μ and "!=" for ≠.
Answer:
Step-by-step explanation:
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The null and alternative hypotheses are [tex]H_o[/tex] μ= 64.2 and [tex]H_a[/tex]: μ ≠ 64.2 respectively.
What is the hypothesis?In statistics, hypothesis testing is the process by which an analyst tests an assumption about a population's parameter. Using sample data, hypothesis testing is performed to examine the plausibility of a theory.
The average height of an 18-year-old American woman is 64.2 inches
Hypotheses state claims about a population parameter.
p: population proportion: population mean
σ: population standard deviation
The null hypothesis asserts that the sample size equals the claim value:
[tex]H_o[/tex] :μ= 64.2
The alternate hypothesis expresses the inverse of the null hypothesis (As per the claim):
[tex]H_a[/tex] : μ ≠ 64.2
μ = The average height of 18-year-old American women in the population.
[tex]H_o[/tex] :μ= 64.2
[tex]H_a[/tex] : μ ≠ 64.2
Thus, the null and alternative hypotheses are [tex]H_o[/tex] μ= 64.2 and [tex]H_a[/tex]: μ ≠ 64.2 respectively.
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I NEED HELP ASAP 20 POINTS
Write an expression to represent the area.
Questions 5 and 6
Please help and show work
Step-by-step explanation:
Area of 5 = {(4x+3)×(2x+3-x-2)}+{(x+2)×(x+1)}
={(4x+3)×(x+1)}+{(x+2)×(x+1)}
Area of 6 = {(3x+8)×(3x+5-x-3)}+{(x+3)×(x+3)}
= {(3x+8)×(2x+2)}+{(x+3)×(x+3)
Hope u got it
What is 37% out of 87%?
math need help please
Answer:
same side interior
Step-by-step explanation:
Phillipe says he cannot simplify the expression 5^c • 2^c. Complete the statement about Phillipe's claim.
Answer:
Step-by-step explanation:
[tex]a^{m} * b^{m}[/tex] = [tex](ab)^{m}[/tex]
Yes, he can!!
[tex]5^{c} * 2^{c} = (2 * 5 )^{c}[/tex] = [tex]10^{c}[/tex]
For example,
2³ × 3³ = 8 × 27 = 216
6³ = 216
The expression can not be simplified as it do not have same base, and can be written as [tex]10^c[/tex]
What is an expression?Expressions in math are mathematical statements that have a minimum of two terms containing numbers or variables, or both, connected by an operator in between.
Given that, Phillips says he cannot simplify the expression [tex]5^c.2^c[/tex]
She can not simplify the expression because the bases of the expression are not same, and this expression is same as
[tex]5^c.2^c\\\\= (5.2)^2\\\\=10^c[/tex]
Hence, the expression can not be simplified as it do not have same base, and can be written as [tex]10^c[/tex]
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The expression 4x^3+5x+10
Answer: i don't think this can be simplified .
Step-by-step explanation: