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:
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
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
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.
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.
Factor.
y^2-12y+20
i need help
Answer:
(y−10)(y−2)
Step-by-step explanation:
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
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
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)
Please help!!! Thank you!!!!!
Answer:
Its the third answer choice
Step-by-step explanation:
Hope this helps
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)
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:
4 + 6 (3) + 2(5 1/2 - 1)
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
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:
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.
#
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 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
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)
............
How many groups of 3/4 are in each of the following quantities?
Answer:
where are the quantities?
I need answer ples ASAP
Answer:
g
Step-by-step explanation:
g
Hey I need help with this one question I don’t understand it brushed endnoteyrndjfnfjfjfiffj
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
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:
Which list orders the numbers from least to greatest?
Answer:
D)
Step-by-step explanation:
I hope this helps :)
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:
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
Right answer gets brainlist
Answer:
2057
Step-by-step explanation:
Increase £16470.45 by 3.5%
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%