Answer:
2 or C
Step-by-step explanation:
I'm taking this to mean
4 = 2(x - 1)^2
4 = 2(x^2 - 2x + 1)
4 = 2x^2 - 4x + 2
2x^2 - 4x - 2 = 0
x^2 - 2x - 1 = 0
What you get from here is sqrt(2) as one of the roots.
That is not nearly an answer.
4 = 4(x -1)
4 = 4x - 4
8 = 4x
x = 8/4
x = 2
That makes C the answer.
100 POINTS!!!!!!!!!!!!!!!!!
Identify the probability to the nearest hundredth that a point chosen randomly inside the rectangle is in the triangle.
A) 0.15
B) 0.69
C) 0.85
D) 0.31
plzzzzzzzzzzzzzzzzzzz
Answer:
4x²+20x+25
Step-by-step explanation:
(2x+5)² = (2x+5)(2x+5)
(2x+5) (2x+5) = 2x(2x) + 2x(5) + 5(2x) + 5(5)
= 4x² + 10x + 10x + 25
= 4x²+20x+25
The half-life of carbon-14 is 5,730 years. Suppose a fossil is found with 10 percent as much of its carbon-14 as compared to a living sample. How old is the fossil?
1904 years
38077 years
19039 years
3808 years
Answer:
It is 19039 years
Step-by-step explanation:
I took the test and double checked on my calculator.
PLEASE help I really have to get this right!
The population of a city increases by 4,000 people each year. In 2025 the population is projected to be 450,000 people. What is an equation that gives the city's population p (in thousands of people) x years after 2010?
A.p=4x+50
B.p-450=4(x-5)
C.p-15=4(x-450)
D.p=4x+15
True or False? (2,-2) is the solution to the system of equations.
3x - 2y = 10
5x + 3y = 4
True
False
Answer:
True cuz they intercept at (2,-2) plz braliest me
Step-by-step explanation:
Select the reason why these triangles are
similar. If they are not, select "Not similar".
Α. ΑΑ
B. SAS
C. SSS
D. Not similar
Answer:
not similar
Step-by-step explanation:
similar means proportional
1, 1, and 0.5 are not proportional to 3.5, 3, and 2.25
As the two side lengths of the smaller triangle is the same but the ratio of those side in a larger triangle and the smaller triangle is different they are, D. Not similar.
What is congruency?We know two similar planer figures are congruent when we have sides or angles or both that are the same as the corresponding sides or angles or both.
We know two triangles are similar if the ratios of their corresponding sides are equal.
The larger triangle has sides 3, 3.5, and 2.25.
And the smaller triangle has sides 1, 1, 0.5.
As the smaller triangle has side lengths 1, 1, and the ratio of the sides of the larger triangle and the smaller triangle is (2 + 1)/1 and (2.5 + 1)/1 which is equal to 3/1 and 3.5/1 3 and 3.5 but the smaller side has 1 and 1, therefore, they are not similar.
learn more about congruency here :
https://brainly.com/question/7888063
#SPJ2
Helppp!!
What is the value of the missing angle?
Answer:
105
Step-by-step explanation:
all angles inside a triangle add up to equal 180, the inside angle at R is 75 degrees, the TP line is obviously a 180 degree angle, because it's just a straight line, so you subtract 75 from 180 to get 105
hope this helps :)
30 POINTS!!!! and i will give bairnless plzz
Answer:
280
Step-by-step explanation:
Jervane is planning on buying a coffee and several donuts for a road trip. She wants to spend no more than $20 in total. Coffee costs $3 and donuts are $2 each. Write and solve an inequality to determine the maximum number of donuts that Jervane can buy. Be sure to include units on your answer.
Answer:
8
Step-by-step explanation:
Given:
Total money Jervane can spend = $20.
Cost of a coffee = $3.
Cost of a donut = $2.
To find: Maximum number of donuts Jervane can buy.
Solution:
Let the number of donuts she can buy be [tex]x[/tex].
She wants to spend no more than $20 in total.
So,
[tex]3+2x\leq 20[/tex]
[tex]\Rightarrow 2x\leqslant 20-3[/tex]
[tex]\Rightarrow 2x\leqslant 17[/tex]
[tex]\Rightarrow x\leqslant \frac{17}{2}[/tex]
[tex]\Rightarrow x\leqslant 8 \frac{1}{2}[/tex]
As the number of donuts can only be a natural number.
Hence, the maximum number of donuts that Jervane can buy are 8.
Help please thank you !
Answer:
3
Step-by-step explanation:
2/36=x/54
Cross multiply and find x
Answer:
it is 3 cups!
Step-by-step explanation:
36+18=54
2 cups were used for 36, 3 cups were used for 54 :)
what is h ( t ) = − t ( 16 t + 7 ) in standard form
PLEASE HELP !!!!
y = 2x - 4
y = 4x - 6
y = 3x - 4
that's what i got
Please fill in the three leftover boxes
Please help quickly I will give brainlist
Answer:
a. 73%
b. 73:100
c. 0.73
d. 73/100
Step-by-step explanation:
If you are only talking about the shaded part out of the total number of squares then these are your answers
73 out of 100 is 73%
73:100 is the ratio
73/100 = 0.73 is the decimal
73/100 is the fraction
Which phrase represents the meaning of the symbol Less-than?
less than
equal to
take away
greater than
Answer:
less - than is the answer
hope it helps you
Answer:
Answer above is correct
Step-by-step explanation:
Use the distributive property to rewrite the expression -3 + 9(-4x + 4)
Answer:
-3(-11+12x)
Step-by-step explanation:
that should be the answer
20 POINTS!!!!!
Find the common difference for the following sequence and fill in the missing terms. Show all calculations.
-12, __, 10, __, 32, 43
Answer:
Step-by-step explanation:
It was 12 take away 210 add 20 to 3243
Answer:
1 and 21
Step-by-step explanation:
-12, 1 , 10 , 21 , 32, 43
43-32 is 11
32-11=21
21-11 is 11
10-11 is 1
The Girl Scout troop sold 81 boxes of cookies. Each box had 10 cookies. About how many cookies did the Girl
Scout troop sell? Round to the greatest place value.
A. 81 cookies
B. 8,000 cookies
C. 800 cookies
D. 80 cookies
Find a point on Y-axis which is equidistant from the points (2,-2) and (-4,2)
answers fast pleasee ......help me out guys
Answer:
( -1, 0)
Step-by-step explanation:
(2 + -4)/2 = -1
(2 + -2)/2 = 0
Somebody help plz!!! I need some help I’m struggling
Answer:
4
Step-by-step explanation:
The circumference of a circle is 7.4mm.
Find the length of the diameter.
Give your answer rounded to 3 SF.
Answer:
2.355cm
Step-by-step explanation:
A plane took 3 h 33 min to finish a journey. If the distance of the journey was 2840 miles, at what average speed did the plane travel?
Answer:
800mph
Step-by-step explanation:
Step one
Given data
time taken= 3 h 33 min
= 3.55 hours
distance = 2840 miles
Step two:
from speed= distance/time
substitute
speed= 2840/3.55
speed= 800mph
Hence the speed is 800mph
PLEASE HELP!!!
Write an expression for the sequence of the operation described below
multiply the quotient of c and 10 by 4
Do not simplify any part of the expression.
Answer:
[tex]( c / 10 ) * 4[/tex]
Step-by-step explanation:
i need help someone help pls and thx
Sarah had 36 free throw attempts during a game and made at least 75% of the free throws.
What is the greatest number of free throws Sarah could have missed during the game?
Answer:
9 free-throws
Step-by-step explanation:
75% of 36 = 27
36-27=9
She could have missed up to nine free throws
Answer:
3
Step-by-step explanation:
25% of 12 is 3. Brainliest pls :)
what is the slope of (-5,-2)(5,3) ?? show work pls...
( 10 - 2n ) - ( 5n - 8)
Answer:
− 7n+18
Step-by-step explanation:
(10- 2n)- (5n- 8)
− 2n+10-5n+8
-7n+18
Please anyone I’ll mark as a branlist
Answer:
the first option is the answer, r = √6
Step-by-step explanation:
[tex]hypotenuse = \sqrt{opposite {}^{2} + adjacent {}^{2} } [/tex]
hypotenuse = q = √12
adjacent = p = √6
opposite = r
substitute the values into the hypotenuse formula
[tex]q = \sqrt{r {}^{2} + p {}^{2} } [/tex]
[tex] \sqrt{12} = \sqrt{r {}^{2} + ( \sqrt{6} ) {}^{2} } [/tex]
[tex]( \sqrt{12} ) {}^{2} = r {}^{2} +6[/tex]
[tex]12 = r {}^{2} + 6[/tex]
[tex]12 - 6 = r {}^{2} [/tex]
[tex]6 = r {}^{2} [/tex]
[tex] \sqrt{6} = r[/tex]
[tex]r = \sqrt{6} [/tex]
Can somebody do this I’ll mark brainliest pls
Answer:
both are 75 degrees
Step-by-step explanation:
the angles add up to 180, as they are also vertical angles
Answer:
b=c since they are vertical angles, b=75 and c=75
Step-by-step explanation: The angle opposite of the given is the same (105) that gives you two measure. Add 105+105 to get 210. A set of vertical angles=360 degrees, take away 210 from 360 to get the measure of b+c. Divide that by two to get the measure of either b or c.
look at the picture please
Mt. Calvary's budget for a swing set to be built for the Children's Church is $900. If the cost of the swing set should be at least one-fourth as much as the fort, how much can be spent on the fort and still build the swing set?
Answer:
[tex]Amount = \$4500[/tex]
Step-by-step explanation:
Represent Swing Set with S and Fort with F
Given
[tex]S = \$900[/tex]
[tex]S = \frac{1}{4}\ of\ F[/tex] --- S = one-fourth of F
Required
Determine the amount spent on both
Substitute 900 for S in [tex]S = \frac{1}{4}\ of\ F[/tex]
[tex]\$900 = \frac{1}{4} * F[/tex]
Multiply both sides by 4
[tex]4 * \$900 = \frac{1}{4} * F * 4[/tex]
[tex]4 * \$900 = F[/tex]
[tex]\$3600= F[/tex]
[tex]F = \$3600[/tex]
The total amount to be spent it:
[tex]Amount = F + S[/tex]
[tex]Amount = \$3600 + \$900[/tex]
[tex]Amount = \$4500[/tex]