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const2013 [10]
3 years ago
10

Does anyone know how to do this

Mathematics
2 answers:
Paraphin [41]3 years ago
5 0

Answer: 7(x+2)(x+3)

Step-by-step explanation:

First, you want to find the GCF, 7 goes into all the terms evenly

so 7x^2 + 35x + 42 = 7(x^2 + 5 + 6)

to factor (x^2+5+6), you want to find two numbers whose product is 6 and whose sum is 5 (2 and 3)

so (x^2 + 5 + 6) becomes (x+2)(x+3)

and 7(x^2 + 5 + 6) becomes 7(x+2)(x+3)

Shtirlitz [24]3 years ago
5 0

Answer is 7(xsquared+5x+6)

Step by step:

all of the coefficients are divisible by seven so divide them y 7 and put 7 outside the parenthesis

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the number of bacteria in a Petri dish is 524 and growing at a rate of 7% every month. how many bacteria will there be in 7 mont
melisa1 [442]
Hey You!

524 × 7% = 36.68

Month 1:

524 + 36.68 = 560.68

Month 2:

560.68 × 7% = 39.2476

560.68 + 39.2476 = 599.9276

Month 3:

599.9276 × 7% = 41.994932

599.9276 + 41.994932 = 641.922532

Month 4:

641.922532 × 7% = 44.93457724

641.922532 + 44.93457724 = 686.85710924

Month 5:

686.85710924 × 7% = 48.0799976468

686.85710924 + 7% = 734.9371068868

Month 6:

There will be 780.76 bacteria in 7 months.
8 0
4 years ago
Read 2 more answers
Solve the equation for 0
kondaur [170]

Answer:

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Step-by-step explanation:

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3 0
3 years ago
I need help with this
Stells [14]

Answer:

AB = 21

Step-by-step explanation:

So we have two triangles (AEB and ADC), and they're similar by AA

Now, you can find the ratio of similitude by checking AE/AD which is 14/26 = 7/13

AB/AC = 7/13

Take AB as x aight

x/x+18 = 7/13

x=21

5 0
3 years ago
What is the equation of the line that passes through the point of intersection of the lines y = 2x − 5 and y = −x + 1, and is al
Arisa [49]
Y=1/2x-2

To find the point where the two lines intersect they are set equal to each other so that x can be found:
2x-5=-x+1
2x+x=1+5
3x=6
x=2

If x is known, x can be plugged into one of the two equations to find y.
y=-x+1=-2+1=-1

This means the point where they intersect is (2,-1).
We also know that the slope has to be 1/2 because the slope has to match the slope of the line it is parallel to.

Putting this into point slope form, we get:
(y-(-1))=1/2(x-2)

Which can be simplified into slope intercept form:
y+1=1/2x-1
y=1/2x-1-1
y=1/2x-2
5 0
3 years ago
The graph below shows interest charges accrued on 4 different credit cards. Based on the graph, which credit card appears to hav
dezoksy [38]

Answer:

The correct option is D.card 4

Step-by-step explanation:

Consider the provided graph.

The introductory APR is a discounted interest rate which credit card companies frequently give new customers after opening an account for a fixed number of months. Most credit cards on payments, balance transfers or both offer discounted APRs.

The graph of card 4 is showing that the interest rate in Jan to Apr was lower, after Apr the interest rate increase with different slope.

Therefore, the correct option is D.card 4

4 0
3 years ago
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