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REY [17]
3 years ago
5

How do you find x X*-6x-7=0

Mathematics
1 answer:
BaLLatris [955]3 years ago
8 0
x^2-6x-7=0\\
x^2+x-7x-7=0\\
x(x+1)-7(x+1)=0\\
(x-7)(x+1)=0\\
x=7 \vee x=-1
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Find the annual interest rate. $I=\$160$ , $P=\$2000$ , $t=8$ months The annual interest rate is %.
Sedaia [141]

Answer:

1\%

Step-by-step explanation:

Simple interest (I) = $160

Principal amount (P) = $2000

Time period (t) = 8 months

Let R denotes rate of interest.

Relation between simple interest, principal amount, time and rate of interest  is given by I=\frac{PRT}{100}

160=\frac{2000(R)(8)}{100} \\\\160=160R\\R=1\%

3 0
3 years ago
Read 2 more answers
Select the domain and range of F. F = {(x, y ) | x + y = 10}. Domain: {10} Range: {10} Set F is not a function and does not cont
MissTica

Answer:

Domain is all Real Numbers and the Range is all Real Numbers.

Step-by-step explanation:

It is a function.

The graph of this function is a straight line passing  through the x axis at (10,0) and the y-axis at  (0,10). The line  continues to the left and right without bounds.

So the Domain is all Real Numbers and the Range is all Real Numbers.

4 0
3 years ago
I need help asap T>T
n200080 [17]

Answer:

3.4 yards cubed

Step-by-step explanation:

Volume is length x width x height

Length 2 4/5, Width 2, Height 3/5 so 2 4/5 x 2 x 3/5

It looks like they want the answer in decimal form, so you can convert the fractions into decimals.

For the length 2 4/5,  you divide the 4 by 5 to get a decimal of .8 so now it's 2.8

For the height of 3/5, you divide the 3/5 & get .6

Now it's 2.8 x 2 x .6 = 3.36 yards cubed which could get rounded up to 3.4 yards cubed

6 0
2 years ago
Find f(-2) when f(t) = -2t + 3<br><br> A) -7 <br> B) -1 <br> C) 1 <br> D) 7
Lady bird [3.3K]

Answer: -1

Step-by-step explanation:

f(t) =  -2t + 3

f(-2) = -2 x -2 + 3                [ substituting the value]

f(-2) = -4 + 3

f(-2) = -1

5 0
3 years ago
Maria started with $10. She has been saving $3 dollars each week to buy a softball bat. The amount of money Maria has depends on
Mama L [17]
The correct answer is b as she starts with 10 and keeps on added 3 dollars per week
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3 years ago
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