Answers
9514 1404 393
Answer:
[tex]\left[\begin{array}{cc}-7&24\\-16&13\end{array}\right][/tex]
Step-by-step explanation:
The matrix operation works on corresponding terms. For example, the lower left term is ...
5(-4) -4(-1) = -20 +4 = -16
_____
It works nicely to let a calculator or spreadsheet do the arithmetic.
Related Questions
2^2x-4^(2^x)+3=0 find the positive value of x
Answers
Answer:
0 and 1.5850
Step-by-step explanation:
Given the expression
2^2x-4^(2^x)+3=0
Let P = 2^x
P² - 4P + 3 = 0
Factorize
P² -3P-P +3 = 0
P(P-3)-1(P-3) = 0
P-1 = 0 and P-3 = 0
P = 1 and 3
If P = 1
2^x = 1
log 2^x = log 1
xlog 2 =0
x = 0/log 2
x = 0
Also if P = 3
2^x = 3
x log 2 = log 3
x = log3/log 2
x = 0.4771/0.3010
x = 1.5850
Hence the positive value of x are 0 and 1.5850
i didn’t mean to pick that but can some one please give me the answer :(
Answers
Answer:
you were right
Step-by-step explanation:
180-104 is 76 76-10=66 66/2 is 33
Answer: x = 33
Step-by-step explanation:
Well since that line is basically equal to 180 all you have to do is plug in those numbers for x. Since 33 + 10 = 43 Alll you gotta do is add that up. So we have 104 + 33 + 43 = 180. I’m not the best at explaining things but I hope this helped :)
What is the radius of the unit circle?
Answers
213.23
Answer:
1 is the radius of the unit circle. I think.
In mathematics, a unit circle is a circle with a radius of one. The unit circle is the circle of radius one centered at the origin (0, 0)
Step-by-step explanation:
Have a nice day!
and can I maybe have brainliest? Thanks!
GUYS! PLEASE HELP ME IN NO. 8 AND 9 WITH SOLUTIONS.
Find the area of each shaded region. Assume that all angles that appear to be right angles are right angles.
Answers
Step-by-step explanation:
Triangle
[tex] \frac{10 \times 4}{2} - \frac{5 \times 3}{2} = \\ = \frac{40}{2} - \frac{15}{2} = \\ = \frac{25}{2} [/tex]
Circle
[tex] {4}^{2} \pi - {2}^{2} \pi = \\ = 16\pi - 4\pi = \\ = 12\pi[/tex]
Please help me with this problem, thanks
Answers
Which statement is true?
−2.4<−2.40
−2.4≠−2.40
−2.4≤−2.40
−2.4>−2.40
Which value of x is a solution of the inequality?
3x+5≤14
x = 3
x = 4
x = 5
x = 6
Which values are solutions to the inequality?
5r≤6r−8
Select each correct answer.
r = 7
r = 8
r = 9
r = 10
Which values from the given replacement set make up the solution set of the inequality?
2b–4≥2 ; {1,2,3,4}
{1,2,3}
{1,2}
{3,4}
{2,3,4}
Answers
Answer:
1. -2.4>-2.40
2.×=3
3.r=8
4.{3,4}
I’ll give brainliest
Find the area of the larger sector.
Round to the nearest tenth.
2550
13.4 miles
Area
[? ]miles?
Answers
Answer:
Step-by-step explanation:
Answer: 399.6
Step-by-step explanation:
h
it is known that a certain lacrosse goalie will successfully make a save 85.11 % of the time. Suppose that the lacrosse goalie attempts to make 12 saves. What is the probability that the lacrosse goalie will make at least 10 saves?
Answers
[tex]P(X\geq10)=P(X=10)+P(X=11)+P(X=12)=\binom{12}{10}p^{10}(1-p)^2+\cdots=73.95\%[/tex]
Answer:
the person aboce is correct ...
Write the equation of the line that passes through the point (-1,-5) and has a slope of -2?
Answers
Answer: Answer is B hope this helps
Step-by-step explanation:
Answer:
the correct answer is D. Hope it helps
Find the area,
8 cm
6 cm
6 cm
Answers
Answer:
288
Step-by-step explanation:
I’m not 100% sure yho
Hope this help you
I need help plz NO FILES no files helpppp it do at 2
Answers
Answer:
B
Step-by-step explanation:
325/5= 65
2 numbers are over 65
Find five numbers so that the mean, median, mode and range are all 4.
Answers
Answer:
The set of five numbers would be {2,4,4,4,6}
Answer:
The example set could be:
S
=
{
2
,
4
,
4
,
4
,
6
}
See explanation.
Explanation:
First you can notice that if the set was:
S
1
=
{
4
,
4
,
4
,
4
,
4
}
then it would fulfill 2 conditions: mean and median, but
the set does not have the mode because all numbers are the same,
the range is zero (again all numbers are the same)
To have the mode the set would have to have at least one element different from
4
, but if we changed only one element the mean would change, so at least two numbers need to be changed to keep mean equal to
4
..
Now to get the range the difference between the changed numbers should be
4
. That leads us to adding two to one number and subtracting two from the other.
Finally we can get the set from the answer.
Find the domain and the range of the relation shown in the given graph. Also, determine whether the relation is a function.
Answers
Answer:
yes, it is a function
D: {-4, -3, 0, 4}
R: {2, 4}
Step-by-step explanation:
Expand the expression.
1/5(15+10x-5)
Answers
Answer:
2x+2
Step-by-step explanation:
farthest it can go
Find the area. Do not include the units
Answers
Answer:
19.95cm²
Step-by-step explanation:
Okay, so I don't know what "do not include the units means", so I'm sorry if this is wrong, but the formula for the area of a parallelogram is height x width. Lucky for us, we have both so we just have to plug:
3.4 x 5.7 = 19.95
So, the area of the parallelogram is 19.95cm²
hope this helps:)
Mrs. Stefan recorded the time it took each of her students to complete a challenging math problem. 1. Make a line plot of the data. 2. Charlie says the difference between the least amount of time it takes a student to complete the math problem and the greatest amount of time is minutes. Is he correct? Explain.
Answers
Answer:
1 is correct
Step-by-step explanation:
Rewrite the expression in the form z^n
Answers
Answer:
[tex]z^{11}[/tex]
Step-by-step explanation:
5 + 6 = 11
We follow the product rule in which we ADD the exponents:
[tex]a^x*a^y=a^{x+y}[/tex]
Need help on this please
Answers
Answer:
[tex]x^{2}[/tex] + (y-5)² = 8
The question on the top is
A student spins The spinner once and rolls the 1-6 number cube once. The second question is
What is the probability a student spends an even number and rolls an odd number, written as a percentage?
10 points this is due tomorrow.
Answers
Answer:
Option C
Step-by-step explanation:
For the spinner,
Probability of spinning an even number = [tex]\frac{\text{Favorable outcomes}}{\text{Total outcomes}}[/tex]
Favorable outcomes = even numbers on the spinner
= 3
Total outcomes = Total numbers on the spinner
= 6
Probability of spinning an even number = [tex]\frac{3}{6}[/tex]
= [tex]\frac{1}{2}[/tex]
For the cube,
Total outcomes = total numbers on the dice = 6
Favorable outcome = Odd numbers on the dice = 3
Probability of rolling an odd number on rolling a cube = [tex]\frac{3}{6}[/tex] = [tex]\frac{1}{2}[/tex]
Probability of spinning an even number on spinner and an odd number on a cube = [tex]\frac{1}{2}\times \frac{1}{2}[/tex]
= [tex]\frac{1}{4}[/tex]
Percentage probability = [tex]\frac{1}{4}\times 100[/tex]
= 25%
Option C is the answer.
On a survey, 3 out of every 8 band members prefer listening to jazz music. Based on the survey, how many out of 240 band members would prefer listening to jazz music
Answers
Answer:
90
Step-by-step explanation:
Sarah has two pizzas each pizza is cut into 10 equal slices she and her friends 14
slices what part of the pizza did they eat and how much is left right your answer as a decimal
Answers
A seamstress is designing a flag in the shape of a right triangle. Which of the
following could NOT be the lengths of the sides of the triangle?
A) 18 m, 24 m, 30 m
B) 6 ft, 17.5 ft, 18.5 Ft
C) 7 Ft, 10 ft, 12 Ft
D) 21 in., 28 in., 35 in.
Answers
Answer:
Step-by-step explanation:
Find the total surface area of these rectangular boxes when they are (i) lidless and (ii) hollow.
a. length = 15cm, breadth = 10cm, height = 6cm
Answers
Answer: 450 cm squared if not including the inside surface
900 cm squared if including the inside suface
Step-by-step explanation:
A=2(wl+hl+hw)
A=2(150+90+60)
A=2(300)
A=600
but we have a lidless box so we need to subtract the lid...
600-(wl)=
600-(150)=450
If we are including the inside surface it would double as we would be covering both exposed surfaces of bottom, 2 ends, and 2 sides....
450x2=900
The surface area is 450 cm squared if not including the inside surface and 900 cm squared if including the inside surface.
What is surface area?The space occupied by any two-dimensional figure in a plane is called the area. The area of the outer surface of any body is called the surface area.
(i) The surface area will be calculated as,
A=2(wl+hl+hw)
A=2(150+90+60)
A=2(300)
A=600
But we have a lidless box so we need to subtract the lid.
600-(wl)=
600-(150)=450
(ii) If we are including the inside surface it would double as we would be covering both exposed surfaces of the bottom, 2 ends, and 2 sides.
450x2=900
Therefore, the surface area is 450 cm squared if not including the inside surface and 900 cm squared if including the inside surface.
To know more about a surface area follow
https://brainly.com/question/25292087
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sharon bought a $2,100 high definition television set on a six month rent to own plan. the down payment was 10%. what was the dollar value of the down payment? her monthly payments were $75 per month. if she decides not to buy the HDTV after the six months, what was her cost to rent it?
Answers
Answer:
Total Sharon spent $660 for the tv
The down payment was $210
The amount that she paid for rent after 6 months is $450
Step-by-step explanation:
To find out how much her down payment was you would need to find out how much 10% of $2,100 is which is $210, so you know her down payment was $210.
Then you would find out the total cost of rent is after 6 months so you would do 6 times $75 which is $450. So if she decides to not buy it then after 6 months she would have spent $450 to rent it.
And total she would have spent $660 which you can find out by doing $450 + $210 = $660.
Martin cycles at an average speed of 12mph. On Tuesday, he leaves his house at 9:15am
and goes on a bike ride for 40 miles. What time does he arrive home?
Answers
Step-by-step explanation:
40÷12= 3.33
so it approximately takes him 3hrs and 18minutes
so 9:15 + 3hrs 18 minutes is 12: 33 pm?
solve by using appropriate Laws of exponents
Answers
Answer:
answer is 0.1 ....................
Please help I’ll mark you as brainliest if correct
Answers
Answer:
190.50 centimeters
Step-by-step explanation:
5 1/4 fraction 2 3/4
Answers
A=bh; find A when b=93 and h=69
Answers
Answer:
6417
Step-by-step explanation:
if A = b*h then when we substitute b for 93 and h for 69
A=93*69 = 6417
A=93 *69
=6417
.............
The results of an independent-samples t test were t(19) = 4.02, p < 0.05. In this example,
the sample size is:
Answers
The results of an independent-samples t test were t(19) = 4.02, p < 0.05. The sample size is 19.
What is independent t-test?The independent t-test is a defined as an statistical test in order to determine if we have statistically significant difference between the means of two unrelated groups.
Effect size is defined as a "quantitative measure of the magnitude of the experimenter effect" So, If we have a high value for the effect size then we can conclude that we have a stronger relationship between two variables.
T test is used to compare group means is one of the most common tests and is used to determine whether the means of two groups are equal to each other.
We perform one sample z-test;
One sample z-test is performed if the sample size is large enough (n > 30) and we want to know if the sample comes from the specific population.
The results of an independent-samples t test were t(19) = 4.02, p < 0.05. In this example,
The sample size is 19.
Learn more about one-sample z-test here:
https://brainly.com/question/21477856
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