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Anvisha [2.4K]
3 years ago
8

Find the value of a. (6a+10) (3a + 55)

Mathematics
2 answers:
mojhsa [17]3 years ago
8 0
(6a+10)⋅(3a+55)=18a^2+330+30a+550
=18a^2+330a+30a+550=18a^2+360a+550
a=-5/3 or a=-55/3

hope it helps!
cricket20 [7]3 years ago
3 0
Fist add what’s in the (. ) 16a multiply 58a equals 928
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Find the area and perimeter of a square that has a diagonal of 15√2m
Sergio [31]
It's 112.5

Hope this helped!
8 0
3 years ago
A scatterplot is produced to compare the number of hours that students study to their test scores. There are 25 data points, eac
yKpoI14uk [10]

The question is incomplete, the complete question is;

A scatterplot is produced to compare the number of hours that students study to their test scores. There are 25 data points, each representing a different student. The scatterplot shows a grouping of points rising from left to right. Which statement could be true?

a. There is no relationship between the number of hours that students study and their test scores because the scatterplot does not have a cluster.

b. As the number of hours of studying increases, test scores decrease because the scatterplot has a cluster that increases from left to right.

c. As the number of hours of studying increases, test scores increase because the scatterplot has a cluster that increases from left to right.

d. The number of hours that students study is equal to the test scores because the scatterplot does not show a cluster.

Answer:

c. As the number of hours of studying increases, test scores increase because the scatterplot has a cluster that increases from left to right.

Step-by-step explanation:

Though we can't see the scatter plot but it makes sense from option c that as the number of hours of studying increases, test scores increase.

That option even stated that the cluster of points increases from left to right. If the scatterplot has a cluster that increases from left to right, then it follows that the test scores actually increases positively with the number of study hours.

5 0
3 years ago
PLS HELP ASAP GIVING OUT BRAINLIEST.<br> How many positive integer solutions exist for 3(x-5)≤7?
True [87]

Answer:

7 positive integer solutions

Step-by-step explanation:

3(x-5)≤7

Distribute

3x - 15 ≤7

Add 15 to each side

3x-15+15≤7+15

3x≤22

Divide by 3

3x/3 ≤22/3

x≤7 1/3

Positive integer solutions

1,2,3,4,5,6,7 = 7

0 is neither positive nor negative

3 0
3 years ago
Read 2 more answers
Help me here in this equation and tell me how to check it to know if solution is the answer
Leokris [45]

ok so first step is to get rid of x

than you want to subtract x from 4/5x

than you want to minus 7 from 9 and you get 2

now times 5 to both sides like like this

4/5x5 and 2x5=

4x=10

x=2.5

i hope this helps you


\frac{4}{5} x \frac{5}{1} = \frac{4}{1} =4x

then you have 2 x 5= 10

so then you will have 4x=10\\10divide by 4 =\\2.5\\x=2.5

4 0
4 years ago
Hi, i need to calculate roots x1 and x2 using the vieta theorem, can anyone help me? I have found the answer for x1 and x2, its
Mnenie [13.5K]

Answer:

Solution given:

-2x²+7x-6=0

2x²-7x+6=0

Comparing above equation with ax²+bx+c

we get

a=2

b=-7

c=6

By using Vieta's theorem

X1+X2=\frac{-b}{a}=\frac{7}{2}

again

X1X2=\frac{c}{a}=\frac{6}{2}=3

7 0
3 years ago
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