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serious [3.7K]
3 years ago
6

PLS HELP ME ASAP FOR 7, 8, and 9. A and B (SHOW WORK FOR ALL!! + LOTS OF POINTS

Mathematics
1 answer:
KengaRu [80]3 years ago
5 0
I can't exactly see those. So i can't help you sorry
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What is the value of x in the equation 3x – 1/9y = 18, when y = 27?1
Andrews [41]
3x-3=18
3x=18+3
3x=21
x=7
8 0
3 years ago
What are the zeroes of f(x) = x2 + 5x + 6?
Vera_Pavlovna [14]

Answer:

Zeros are x = −2, −3 .

Step-by-step explanation:

Given : f(x) = x² + 5x + 6.

To find : What are the zeroes of f(x).

Solution : We have given that

f(x) = x² + 5x + 6.

To find the zeros of the function we need to set f(x) = 0.

x² + 5x + 6 = 0.

On factoring

x² + 3x +2x + 6 = 0.

Taking common x from first two term and 2 from last two terms

x ( x + 3) +2 ( x +3) = 0.

On grouping

(x + 3) (x + 2)  = 0

Now, x + 3 = 0   and x + 2 = 0

x = -3 and x = -2

Therefore, Zeros are x = −2, −3 .

3 0
2 years ago
Can you solve this problem plz?
Andre45 [30]

Answer:

First, we are going to find the sum of their age. To do that we are going to add the age of Eli, the age Freda, and the age of Geoff:


The combined age of Eli, Freda, and Geoff is 40, so the denominator of each ratio will be 40.


Next, we are going to multiply the ratio between the age of the person and their combined age by £800:

For Eli: 

For Freda: 

For Geoff: 


We can conclude that Eli will get £180, Freda will get £260, and Geoff will get £360.

Step-by-step explanation:


6 0
2 years ago
Read 2 more answers
Can someone help me pls
Vlada [557]

Answer:

The angle will be 130 degrees

Step-by-step explanation:

50 at the center translates to 50 at the outer rim.

this means it will be 310-50 divided by 2

260 divided by 2 equals 130

3 0
2 years ago
What is another way this expression can be written 0.7×0.4
KiRa [710]

Answer:

7/10*4/10

Step-by-step explanation:

7/10 and 4/10 are both just the fraction forms of the decimal so it should work

8 0
3 years ago
Read 2 more answers
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