Answer:
x = - 6, x² = [tex]\frac{7}{2}[/tex]
Step-by-step explanation:
[tex]2x^{2}[/tex] + 12x - 7x - 42 = 0
2x^{2} (x + 6) - 7 (x + 6) = 0
(x + 6) x (2x - 7) = 0
x + 6 = 0
2x - 7 = 0
x = - 6
x = [tex]\frac{7}{2}[/tex]
x = - 6, x² = [tex]\frac{7}{2}[/tex]
What is 2 + 3/8?
Please helpp!!
Answer: 2 + 3/8 is 2 3/8, 19/8, or 2.375
Step-by-step explanation:
Right answer gets brainlist
Answer:
2057
Step-by-step explanation:
SOMEONE PLEASE HELP ME T-T
Shania has 12 coins in her pocket. Of these coins, 5 are pennies and 7 are dimes. Shania randomly selects one coin from her pocket and, without replacing it, selects another coin from her pocket. What is the probability that both coins are dimes?
Answer:
10/12
Step-by-step explanation:
Answer:
10/12
Step-by-step explanation:
Micaela spent $32 on writing utensils pens cost four dollars and pencils cost two dollars if she bought a total of 10 and how many of each kind did she buy
Answer:
6 pens and 4 pencils
Step-by-step explanation:
6 x 4 = 24
4 x 2 = 8
24 + 8 = 32
ez pls just osmoene help
Which answer below represents the following mixed radical written as an entire radical?
3a2b3 18a7b113
Select one:
a. 486 a13b20 3
b. 45 a13b20 3
c. 54 a9b14 3
d. a 54 a3b14 3
Factor.
y^2-12y+20
i need help
Answer:
(y−10)(y−2)
Step-by-step explanation:
Please help!!! Thank you!!!!!
Answer:
Its the third answer choice
Step-by-step explanation:
Hope this helps
4 + 6 (3) + 2(5 1/2 - 1)
1. Which inequality represents this situation? At least 25 cats are on my
porch.
Answer:
Step-by-step explanation:
cats=c
at least it means that there are 25 minimum
c[tex]\geq[/tex]25
Factorise fully
10z -80
Answer:
10(z-8)
Step-by-step explanation:
if you have to factor you have to have something like
number *number or number* parenthesis
10z - 80 is number *number -number so change
10 *(z-8)
It says Use the distributive property to write the following in expanded form.
4(x+y)
write the expression using the WIRIS editor button
Answer:
pretty sure it's 4x+4y however I'm not 100 percent sure
Increase £16470.45 by 3.5%
Help me please!
If you get it right, I’ll will brainliest u!!
Answer:
Angle S is a straight angle.
Step-by-step explanation:
180° is a straight line.
please help 4x + 8 + 7x + 3
Answer:
11x + 11
Step-by-step explanation:
11x
11
=11x + 11
Answer:
11x + 1 1
Step-by-step explanation:
Simplify
Combine like terms
What is the value of p(b-c) when b=3,c=3 and p=-2
Answer:
0
Step-by-step explanation:
-2 (3 - 3)
distribute: -6 + 6
add: -6 + 6 = 0
Answer:
0
Step-by-step explanation:
p=-2,b=3,c=3
p(b-c)
-2(3-3)
-2(0)
0
or-2(3-3)
-6+6
0
hope it's helpful ❤❤❤❤
THANK YOU.
#
A ceramic vase that cost an antique store $5 was marked $20. What is the percentage markup on the price of the ceramic vase?
15%
75%
300%
400%
how do I do this problem I'm doing test corrections and I have no idea how to do it
Answer:
i think its 3 but dont quote me
Step-by-step explanation:
Answer:
B
Step-by-step explanation:
9 can help in completing square formula
Which list orders the numbers from least to greatest?
Answer:
D)
Step-by-step explanation:
I hope this helps :)
Find the sequence and fill in the blanks
(2, 3), (4, 6), (6, 9), (8, 12) ....
The 8th group is (__, __)
Step-by-step explanation:
(8×2,8×3)
(16, 24)
............
Which of these cannot represent the lengths of the sides of a right triangle?
A.)3 ft, 4 ft, 5 ft
B.)6 in., 8 in., 10 in.
C.)16 cm, 63 cm, 65 cm
D.)8 m, 9 m, 10 m
Tammy jumped up 9 steps. Each step was
7/10 feet high.
How high up did she jump altogether?
Write your answer in simplest form.
Answer: 6 and 3/10 0r 63/10
Step-by-step explanation:
How many groups of 3/4 are in each of the following quantities?
Answer:
where are the quantities?
Given f(x) = 2x^2+ kx – 9, and the remainder when f(x) is divided by x + 6 is
57, then what is the value of k?
Given:
The function is
[tex]f(x)=2x^2+kx-9[/tex]
The remainder when f(x) is divided by x+6 is 57.
To find:
The value of k.
Solution:
According to the remainder theorem, if a polynomial function f(x) is divided by (x-a), then f(a) is the remainder.
The remainder when f(x) is divided by x+6 is 57.
Using remainder theorem, we get f(-6)=57.
Putting x=-6 in the given function.
[tex]f(-6)=2(-6)^2+k(-6)-9[/tex]
[tex]57=2(36)-6k-9[/tex]
[tex]57=72-6k-9[/tex]
[tex]57=63-6k[/tex]
On further simplification, we get
[tex]6k=63-57[/tex]
[tex]6k=6[/tex]
[tex]k=\dfrac{6}{6}[/tex]
[tex]k=1[/tex]
Therefore, the value of k is 1.
Answer:
person above lol
Step-by-step explanation:
A shark can swim at an average speed of 25 miles per hour. At this rate, how far can a shark swim in 2.5 hours?
Answer:
62.5 miles in 2.5 hours
Hope this helped.
Sonia is older than her brother Eddie.The sums of their ages is 38.The differences is 14
Answer:
Sonia is 26
Eddie is 12
Step-by-step explanation:
What is the area of this triangle?
A=bh2
17 m²
30 m²
60 m²
120 m²
Answer:
120
Step-by-step explanation:
alls you do is plug in the numbers its not hard sweetie
Answer:
120 m2
Step-by-step explanation:
I took the test hope this helps
Alonzo has completed 44 Deliveries so far this week he needs to make 55 deliveries for the week what percentage of his delivery has Alonzo completed?80%
Answer:
80%
Step-by-step explanation:
Find 44/55 and multiply the result by 100%: (0.8)(100%) = 80% (completed)
Hey I need help with this one question I don’t understand it brushed endnoteyrndjfnfjfjfiffj
Justin is 2 years older than 1/4 his brothers age.
Brothers age = 12
Justin's age =_
Answer:
Justin is 5 yrs old
Step-by-step explanation:
make an equation out of it. Let x be Justin's age
1/4(12)+2=x
simplify
3+2=x
x=5
Justin's age is 5 years.
What is linear equation in one variable?The linear equations in one variable is an equation which is expressed in the form of ax + b = 0, where a and b are two integers, and x is a variable and has only one solution.
According to the given question
Justin is 2 years older than 1/4 of his brother's age.
Let the age of Justin be x years.
Also, Justin's brother age is 12 years.
Therefore,
The age pf Justin is given by
[tex]x = 2 + \frac{1}{4}(12)[/tex]
solve the above linear equation
⇒ x = 2 + 3
⇒ x = 5 years
Hence, Justin's age is 5 years.
Learn more about linear equation here:
https://brainly.com/question/17139602
#SPJ2
I need answer ples ASAP
Answer:
g
Step-by-step explanation:
g