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blondinia [14]
2 years ago
9

Please solve these step-by-step!!

Mathematics
1 answer:
Ierofanga [76]2 years ago
3 0

Answer:

For D. X= 3, or 0 but probably not 0

For the 2nd picture you sent,  x= -2, or -3

Step-by-step explanation:

So for D. you want to make sure you only have 1 Variable, and since we know y=x squared + 7x+5, we subsitute y for what it is equal to.

Then we refine the question, which takes it out to

x squared-3x+5=5 (because the 7x-10x = 3x)

We subtract 5 from both sides which leaves us with x Squared - 3x= 0

Which we then solve with the Quadratic formula. and we separate the solutions to get the different answers for 3, and 0

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20 in
alukav5142 [94]

Answer:

C

Step-by-step explanation:

This question can simply be answered by the process of elimination. All of the other answers have numbers behind the first number of the decimal. when you are rounding to the nearest tenth, you will have no numbers behind the decimal except 1. They will look like this:

11.70

23.30

45.60

So, since we are looking for the nearest tenth, we would choose C because it is the only one that is rounded.

8 0
2 years ago
Log 3243<br><br> a)5<br> b)7<br> c)4<br> d)6
kramer
What’s the question
3 0
3 years ago
Read 2 more answers
What's the answer this is equivalent fractions
IceJOKER [234]
The answer is 3/4 because if u count it up it equals 36/48 and then u just have to simplify
3 0
3 years ago
What is the sum of the first 20 terms of the arithmetic sequence shown? \displaystyle \frac{1}{3} 3 1 ​ , \displaystyle \frac{2}
Murrr4er [49]

Answer:

70

Step-by-step explanation:

a_1 = First term = \dfrac{1}{3}

d = Common difference = \dfrac{2}{3}-\dfrac{1}{3}=\dfrac{1}{3}

n = Number of terms = 20

Sum of arithmetic progression is given by

S=\dfrac{n}{2}[2a_1+(n-1)d]\\\Rightarrow S=\dfrac{20}{2}\times (2\times \dfrac{1}{3}+(20-1)\dfrac{1}{3})\\\Rightarrow S=70

The sum of the first 20 terms of the arithmetic sequence is 70.

5 0
3 years ago
Which expression is equivalent to the given expression?<br> (-4ab)3
vampirchik [111]

Answer:

-64a³b³

Step-by-step explanation:

please like and Mark as brainliest

6 0
3 years ago
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