Answers
=================================================
Explanation:
Replace every x with -3
Then use the order of operations (PEMDAS) to simplify
y = -2x^2 + x - 5
y = -2(-3)^2 + (-3) - 5 ... x replaced with -3
y = -2(9) - 3 - 5
y = -18 - 3 - 5
y = -21 - 5
y = -26
Answer:
-26
Step-by-step explanation:
1. plug in -3 for all x's
-2(-3)^2 + (-3) -5
2. combine like terms
-2(-3)^2 - 8
3. pEmdas. deal with exponent first (remember: only affect the 3, since it's in parentheses! also when you square a negative number, it becomes positive!)
-2(9) - 8
4. peMdas. multiply -2 and 9 next.
-18 - 8
5. pemdaS. subtract 8 from -18.
-18 - 8 = -26
Related Questions
A bottle of power drink costs $2.25. Which graph represents the relationship between the number of bottles and the total cost?
Answers
Answer: it’s c
Step-by-step explanation:
edg 2020
Answer:
C-the third picture!!
Step-by-step explanation:
please help i’ll mark branliest
Answers
Answer:
45 degrees or choice D
Step-by-step explanation:
angles of a triangle will always amount to 180 when added
60+75+x=180
135+x=180
x=45
Answer:
45
Step-by-step explanation:
Triangle sum theorem states that all interior angles of a triangle = 180
Therefore, 60 + 75 + x = 180
What scale factor is required to dilate triangle abc to make it congruent to triangle efd
Answers
Answer:
And so, in fact, we can perform a series of similarity transformations that map to . And so, the answer is yes, triangle would need to be dilated by a scale factor of three, rotated, and then reflected.
Step-by-step explanation:
Which rational number equals 0.1?
1/11
1/10
1/9
1/8
HELPPPPPP PLZZZZZ
Answers
All you have to do is divide the numerator by the denominator
In this case 1 divided by 10 = 0.1
Hope this helps
Any other ways this could be written?
Answers
Answer:
what could be written?
Answer:
The correct answer is 7¹⁰
Step-by-step explanation:
I think you wrote 1.7 because i wrote 1. 7¹⁰
but I meant that 1. as the first question i was answering, sorry if I wasn't clear
Please help me I beg of you :(
Answers
Answer: 125 minutes to make tests for five classes, $2388 in two months, and 4800 women to 3,600 men
1 class: 25 minutes
5 classes: [tex]25[/tex] × [tex]5[/tex] [tex]= 125[/tex] minutes
[tex]\frac{3582}{3}=\frac{x}{2}[/tex]
[tex]\frac{7164}{3}=\frac{3x}{3}[/tex]
[tex]2,388 = x[/tex]
[tex]x= 2,388[/tex]
[tex]\frac{8}{6}=\frac{x}{3600}[/tex]
[tex]\frac{28,800}{6} =\frac{6x}{6}[/tex]
[tex]4,800=x[/tex]
[tex]x=4,800[/tex]
Nancy has a shelf over her bed where she keeps her four stuffed teddy bears. How many ways can she arrange the four bears?
Answers
Answer:
16
Step-by-step explanation:
I believe you just multiply 4 by 4 !
What is the solution to 0.3(12x - 16) = 0.4(12-3x)?
Answers
Answer:
x=2
Step-by-step explanation:
Answer:
x = 2
EXPLANATION:
expand the parenthesis. and then add like terms (put the x's on one side) and then dived to get x on its own!
3/4 - 1/2 PLEASE HELP
Answers
Answer: 1/4
Step 1: Convert to percents.
3/4 = 75%
1/2 = 50%
Step 2: Subtract.
75% - 50% = 25%
Step 3: Convert to fraction.
25% = 1/4
Hope this helps!
7.13 x 6.2 = 44.206
write down 2 more multiplications with an answer of 44.206
Answers
Answer:
8.8412 x 5 = 44.206
11.0515 x 4 = 44.206
Step-by-step explanation:
division
To find two more multiplications with an answer of 44.206, let's use the following equation:
1) [tex]2.1 x 21.05 = 44.2055[/tex]In this calculation, if we multiply
2.1 by 21.05, we get an answer of 44.2055, which is very close to 44.206. 2) [tex]4.020 x 11.001 = 44.22602[/tex]By multiplying 4.020 by 11.001, we obtain a product of 44.22602, which is also close to the desired answer of 44.206. In conclusion,
we have provided two additional multiplications that have answers very close to 44.206. The first multiplication of[tex]2.1 x 21.05[/tex] yields 44.2055, while the second multiplication of esults in 44.22602. Although the exact solution of 44.206 was not achieved, both calculations provide results within a very small margin of deviation.
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Which equation shows y= 3/4x - 5/2 in standard form?
A 3x – 4y = –10
B 4x – 3y = -10
C 4x – 3y = 10
D 3x -- 4y = 10
Answers
Answer:
the answer is D
can you also please mark me as brainliest?
What is the perimeter of this triangle?
Answers
Answer:
45
Step-by-step explanation:
Need help ASAP please
Answers
Answer:
63.75
Step-by-step explanation:
Answer:
21.25
Step-by-step explanation:
1/4 = 0.25 or 25%
because 0.25 is less than one, dividing will acually be mutiplying. So we have to mutiply to divide. 8*0.25 = 21.25.
answer is 21.25
Which number is an irrational number?
a. 5.38
b. V19
c. -V16
d. -10
Answers
Answer:
I think the Answer is B. √19
I hoped this helpful for you
thank you ☺️☺️
PLEASE HELP I WILL GIVE BRAINLYEST
-8x+-20=
Answers
Answer:
− 8 x- 20,
x = - 5/2
Step-by-step explanation:
rewrite 20 as 4 times 5,
and rewrite 8 as 4 times 2
= -4 times 2x - 4 times 5
= -4 (2x + 5)
8. 2|x - 7| =-4
What is the solution to this absolute value equation
Answers
The answer is there is no solution.
Answer:
No solutions
Step-by-step explanation:
2 | x - 7 | = -4 We need to isolate the absolute value, so in order to do that we need to divide 2 from both sides of the equation.
| x - 7 | = -2
Absolute values can not be equal to a negative number.
Therefore, your answer is no solutions.
Harry's dog weighs 10 3/8 pounds. What is the weight of Harry's dog written as a decimal?
Answers
Answer:
10.375
Step-by-step explanation:
You can tell that 10 is going to be before the decimal because it's already a whole number, so all you have to do is figure out what 3/8 is as a decimal! In case you didn't know, to change a fraction to a decimal, you divide the numerator (the top number) by the denominator (the bottom number). In this case, you need to divide 3, the numerator, by 8, the denominator. 3/8 = 0.375.
So, put the 10 in front of the decimal point and you're done...the answer would be 10.375!
Have great day :3
Can you pleassee help need it asap.
3(9x8)-139
Answers
Answer: 77 :)
Step-by-step explanation:
Answer:
3*72-139
216-139
77
you just multiple the parenthesis first
What is 1748 divided by 53 I’m not very sure please help ASAP
Answers
Answer:
32.9811320755
Step-by-step explanation:
Written out it is 32.9811320755 but the way i thing that your test or question will take is is 32.98
Which expression give the prime factorization of 80?
Answers
Answer:
Prime factorization: 80 = 2 x 2 x 2 x 2 x 5 which can also be written 80 = 2⁴ x 5.
Step-by-step explanation:
hope this helped <3
Answer:
2 x 2 x 2 x 2 x 5
Step-by-step explanation:
find the square root of 13²
Answers
If f(x)=x²+3x-2
find f(-2)
Answers
Answer:
f(- 2) = - 4
Step-by-step explanation:
To evaluate f(- 2) substitute x = - 2 into f(x) , that is
f(- 2) = (- 2)² + 3(- 2) - 2 = 4 - 6 - 2 = - 4
Value of f(-2) is -4
Given that;
f(x) = x²+3x-2
Find;
Value of f(-2)
Computation:
Given that;
f(x) = x²+3x-2
By putting x = -2
f(-2) = (-2)² + 3(-2) - 2
f(-2) = 4 - 6 - 2
f(-2) = 4 - 8
f(-2) = -4
So, -4 is the correct answer to the given equation.
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Distributive property of 48-16
Answers
Answer:
Ok, split the numbers into their addends, 16= 10+6, and 48= 40+8. Now distribute: (10+40)+(8+6)=(50)+(14)=64.
if not good, don't guess!
Step-by-step explanation:
Lines P S and W T are horizontal and parallel. Lines V R and Q R are diagonal and intersect lines P S and W T to form triangle X Y Z.
Which pair of angles is supplementary?
∠RXZ and ∠YXZ
∠PXQ and ∠RXS
∠YZX and ∠UZT
∠WZX and ∠XYZ
Answers
Answer:
The answer is A
Step-by-step explanation:
<RXZ AND <YXZ
Answer:
its a
Step-by-step explanation:
The vertex angle of an isosceles triangle measures 40°. What is the measure of a base angle?
Answers
Answer:
70°
Step-by-step explanation:
In an isosceles triangle the 2 base angles are congruent , thus
base angle = [tex]\frac{180-40}{2}[/tex] = [tex]\frac{140}{2}[/tex] = 70°
Which of the following is the sum of all the odd integers between 5 and 102?
A. 2592
B. 2597
C. 2601
D. 2603
Answers
Answer:
2601
Step-by-step explanation:
The integers between 5 and 102 are
7, 9, 11, 13, 15, 17,19, 21, 23, 25, 27, 29, 31, 33, 35, 37, 39, 41, 43, 45, 47, 49, 51, 53, 55, 57, 59, 61, 63, 65, 67, 69, 71, 73, 75, 77, 79, 81, 83, 85, 87, 89, 91, 93, 95, 97, 99, 101
The sum of the odd intergers between 2 and 105 can be calculated as follows
= (N + 1/2)^2
= (101 + 1 /2) ^2
= (102/2)^2
= 51^2
= 2601
Hence the sum of the odd intergers between 5 and 102 is 2601
Spiral Review What single transformation is represented by the expression
P(x, y) → P' (-2, -y)?
Hint
O reflection of across the y-axis
reflection of across the x-axis
o rotation of 90° about the origin.
o rotation of 180° about the origin
Answers
Answer:
about 180 degrees
Step-by-step explanation:
Grandma Annie is 80 years old. This is 20 years less than 4 times the age of Ashley. How old is Ashley?
Answers
Answer:
Annie is 25.
Step-by-step explanation:
Work backwards. 80+20=100. 100÷4=25. Annie is 25. Let's check:
25x4=100
100-20=80
What is an equation of the line that passes through the points(6,-6) and (-6,-8)
Answers
Answer:
y=1/6x-7
Step-by-step explanation:
How would you write 1256−4using a positive exponent? 25614 −12564 2564 −2564
Answers
Answer:
[tex](\frac{1}{1256})^4[/tex]
Step-by-step explanation:
Given
[tex]1256^{-4}[/tex]
Required
Write as an exponent of positive number
From law of indices, we have that:
[tex]a^{-b} = \frac{1}{a^b}[/tex]
So:
[tex]1256^{-4}[/tex] becomes
[tex]\frac{1}{1256^4}[/tex]
1 to the power of any digit is 1,
So, the above can be rewritten as:
[tex]\frac{1^4}{1256^4}[/tex]
Apply the following law of indices:
[tex]\frac{a^m}{b^m} = (\frac{a}{b})^m[/tex]
So:
[tex]\frac{1^4}{1256^4}[/tex] becomes
[tex](\frac{1}{1256})^4[/tex]
