Answer:
-5
Step-by-step explanation:
3x+7=-8
3x+7-7=-8-7
3x=-15
3x/3=-15/3
x= -5
Step-by-step explanation:
3x+7=-8
then collecting like terms
3x=-8-7
3x=-15
x=-5
When expressed as a decimal number, which of the following is a repeating decimal?
2/5
3/8
5/6
7/10
Answer:
5/6 would be repeating.
Step-by-step explanation:
In decimal form it goes 0.83ext(extended) as in repetitve.
Or if you want to know further it goes like this.
0.833333333333333333333
Answer:
3/8
Step-by-step explanation:
8 divided by 3 =2.6666666666666666666666666666
the 6 is repeating so this is the answer
hope it helps
This is part two of the problem go check part one so it makes sense
Answer:Execute Order 66
Step-by-step explanation:
Answer:
Step-by-step explanation:
Assuming that the original figure is the black one
Area of the original figure = 2 x 3 = 6
A (0,1) -> A’ (0,3)
B (2,1) -> B’ (6,3)
C (2,4) -> C’ (6, 12)
D (0,4) -> D’ (0,12)
AB = 6
BC = 9
Area of the final figure = 9 x 6 = 54
b)
area of the final figure = 9 x area of the original figure
c)
true, because their side are proportional
Use the following number line to determine if the expressions are true or false.
Suppose that diameters of a new species of apple have a bell-shaped distribution with a mean of 7.23cm and a standard deviation of 0.35cm. Using the empirical rule, what percentage of the apples have diameters that are no more than 6.18cm? Please do not round your answer.
Answer:
0.15% of the apples have diameters that are no more than 6.18cm.
Step-by-step explanation:
The Empirical Rule states that, for a normally distributed random variable:
Approximately 68% of the measures are within 1 standard deviation of the mean.
Approximately 95% of the measures are within 2 standard deviations of the mean.
Approximately 99.7% of the measures are within 3 standard deviations of the mean.
In this problem, we have that:
Mean = 7.23, standard deviation = 0.35.
What percentage of the apples have diameters that are no more than 6.18cm?
6.18 = 7.23 - 3*0.35
So 6.18cm is three standard deviations below the mean.
99.7% of the measures are within 3 standard deviations of the mean. The normal distribution is symmetric, which means that (100-99.7)/2 = 0.15% is 3 standard deviations or more below the mean, and 0.15% is 3 standard deviations or more above the mean.
Thus, 0.15% of the apples have diameters that are no more than 6.18cm.
Write as a money amount and as a decimal in terms of dollars 42\100
please help asap! it’s area and perimeter of rectangles and parallelograms!
Answer: I don’t know how to solve the area of these shapes. But I know how to find the peeimeter Of this shape.
perimeter=P
finding the P of any shape is like finding the P of a square or rectangle. Is to add up all the sides up like for the 8th one it would be 10+20+20+10 or (10x2)+(20x2)
hope this helps!
Find the area of the composite shape. Use 3.14 for ni and round to the nearest hundredth.
Answer:
49.12 square inches
Step-by-step explanation:
Area of a circle = Pi x r^2
= 3.14 x 4^2
= 3.14 x 16
= 50.24
Half the circle = 25.12 squared inches
Area of a triangle = base x height /2
= 6 x 8 /2
= 24
25.12 + 24 = 49.12 square inches
Pls delete this answer. I answered incorrectly, and it will take a lot of time to re-answer it
(Btw, this is edited. I had the right answer, and then I realized that it's wrong)
Determine the quotient of the rational expressions. x+2/4xy^2 divided by 2z/y^3
Answer: x (4z + y^5) / 4z
Step-by-step explanation:
I need help for this question
what is the name of the larger arc between the two points
Answer:
Major Arc
Step-by-step explanation:
A major arc is the larger angle between two points of a circle -- greater than 180 degrees of rotation, whereas minor arcs are the smaller of the two possible arcs, arcs that are less than 180 degrees.
Complete steps to find x
+( 7×+24)=128
Answer:
8x=104
Step-by-step explanation:
The answer above is the question simplified down
plz help with question 12 ASAP
Answer:
V = 577 cubic cm
Step-by-step explanation:
V(cyl) = Area of Base x Height
Area of Base = πr²
r = 7/2 or 3.5
h = 15
V = π(3.5)²(15)
V = 577
A bottle of water is placed in a freezer. The table shows how the approximate temperature of the bottle changes over time. What type of function best models the data in the graph?
Answer:exponential
Step-by-step explanation:
Edge 2021
Answer:
exponential graph :)
Step-by-step explanation:
IS THIS IMAGE BELOW AND MY ANSWER CORRECT PLEASE HELP DUE IN 3 MIN
Answer:
yeah it's right
Step-by-step explanation:
Find the area of the parallelogram in square meters
Answer: 27
Step-by-step explanation:
9*3
I will give brainliest to whoever answers firstand answer is correct what is the formula of a b c
Answer:
Its general form is ax2 + bx + c= 0, where x is the variable and a, b, and c are constants (a≠ 0).
What is the area of the given trapezoid?
9)
2.9 km
5.6 km
10.9 km
O 38.64 km2
O 19.3 km2
O 77.28 km?
O 46.44 km2
PLEASE HELP
Answer:
38.64 km^2
Step-by-step explanation:
The formula for the area of a trapezoid is:
[tex]\frac{(b_{1}+b_{2})*h}{2}[/tex]
Where b1 and b2 are the bases and h is the height. We are given 2.9 and 10.9 as the bases and 5.6 as the height. We can plug these values into the formula:
[tex]\frac{(2.9+10.9)*5.6}{2}[/tex]
After entering the expression in the calculator, you get:
38.64 km^2
This is the first option.
Describe and correct the error made in factoring the expression below.
either im blind, or i see no expression
3. Shyann is flipping a quarter and flips 8 tails in a row. Should the next flip most likely be a
heads to balance it out? Explain your reasoning.
A. 17/15
B. 8/15
C. 15/8
D. 8/17
please help will give brainliest
PLEAZE THIS NEEDS TO BE QUICK
There are 14 horses and 56 camels at the stable. What fraction of animals in the stable are horses?
Answer:
1/4
Step-by-step explanation:
if you do it on a calculator it comes out to 0.25 which equals 1/4
Step-by-step explanation: Since there are 14 horses, 14 - 6 -5 = 3 are black.
a) 3 out of 14 are black, so probability is 3/14 chosen horse will be black
b) 1 - 3/14 = 11/14 probability will not be black
c) 6 are brown and 3 are black, so 9/14 probability chosen horse will be either.
SOLVE THE SYSTEM USING SUBSTITUTION
HURRY ILL GIVE BRAINLIEST!!!!
The fish population is decreasing at a rate of 3% per year. In 2002 there were about 1600 fish. Find the fish population in 2010. Round to the nearest whole number
Answer:
Population of fish in
the simple interest on a sum of money is 25% of the rate percent per annum find the rate
si =25%*p
rate =term=t
from si= ptr/100
term = rate = 5
Ami needs to divide these base-ten blocks into 5 equal groups.
Describe a model that would show how many are in each group.
The model will contain
ten and
ones in each group.
Step-by-step explanation:
The model will contain 1 ten and 4 ones in each group.
Which of the following equations will have a negative solution?
Answer:
The third equation, [tex]7\frac{1}{2} +m = 4\frac{2}{3}[/tex].
Step-by-step explanation:
In this question, we have to solve the equation for each of the options and after doing so we will see that the only option that will have m equal a positive number is the third option. Here is how we solve that equation:
[tex]7\frac{1}{2} +m = 4\frac{2}{3} \\m = 4\frac{2}{3} - 7\frac{1}{2}\\m = -2\frac{5}{6}[/tex]
A square pyramid is rotated about a line perpendicular to the base and through the vertex. What angle of rotation maps the pyramid onto itself?
30º
45º
60º
90º
Answer:
I think the answer is 30°. Please tell me if I'm wrong.
Answer: 90 Degrees
Step-by-step explanation:
Find the surface area of the sphere. Round your answer to the nearest hundredth.
A≈1052.09
Hope you have a great life