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Sholpan [36]
3 years ago
13

What is the answer to ax + 7 = 8x + b when x=9

Mathematics
1 answer:
xxTIMURxx [149]3 years ago
6 0

Hey there!

ax + 7 = 8x + b

when x=9, so:

a(9) +7= 8(9) +b

9a +7= 72+b

I hope this helps?

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You will be administratively suspended if you have a breath or blood alcohol level of ____ or above or refuse to submit to a che
raketka [301]

Answer: Our required answer is 0.08%.

Step-by-step explanation:

According to U.S., if anyone has consumed 0.08 % or above , then he will considered as legally impaired, and he would be administratively suspended.

If he has a breath or blood alcohol level of 0.08% or above or refuse to submit to a chemical test.

In U.S. it must be less than 0.08% in blood alcohol concentration.

Hence, our required answer is 0.08%.


4 0
3 years ago
Read 2 more answers
If BC = 5, DE = 9, and AB = 4, what is the length of AD?<br><br><br> 7<br> 8<br> 7.2<br> 7.5
steposvetlana [31]

There are two triangles here: ABC and ADF. These triangles are similar, and thus proportional. So, we can set up a proportion between the left side of each triangle and the base of each triangle.

AB / AD = BC / DE

4 / (4 + BD) = 5 / 9

---AD is made up of AB and DB. We know AB, but not BD, so we need to find its value to find the length of AD.

5(4 + BD) = 9 x 4

20 + 5BD = 36

5BD = 16

BD = 3.2

AD = AB + BD

AD = 4 + 3.2

AD = 7.2

Hope this helps!

8 0
3 years ago
What is the volume of this rectangular prism, given the area of the base is 14
GREYUIT [131]

Answer:

Wow, I'm learning this in class right now lol, the answer is C, 42cm cubed.

Step-by-step explanation:

The formula for finding volume fo 3d shapes is area of base x height/length.

In this problem, they give you both of those. 14 x 3 = 42, so the answer is C.

Hope this helped! If it did, please give me brainliest! It would help a lot! Thanks! :D

5 0
2 years ago
Need to find shaded area of figure please help!
devlian [24]

Answer:

39 ft^2

Step-by-step explanation:

Find the area of the triangle and subtract the area of the square.

area of triangle = bh/2

area of square = s^2

shaded area = bh/2 - s^2

shaded area = (20 ft)(16 ft)/2 - (11 ft)^2

shaded area = 160 ft^2 - 121 ft^2

shaded area = 39 ft^2

7 0
3 years ago
What is an equation of the line that passes through the points (0, 3) and (5, -3)?
shepuryov [24]

Answer <u>(assuming it can be in slope-intercept form)</u>:

y = -\frac{6}{5} x+3  

Step-by-step explanation:

1) First, use the slope formula m =\frac{y_2-y_1}{x_2-x_1} to find the slope of the line. Substitute the x and y values of the given points into the formula and solve:

m =\frac{(-3)-(3)}{(5)-(0)} \\m = \frac{-3-3}{5-0}\\m = \frac{-6}{5}

So, the slope is -\frac{6}{5}.  

2) Now, use the slope-intercept formula y = mx + b to write the equation of the line in slope-intercept form. All you need to do is substitute real values for the m and b in the formula.

Since m represents the slope, substitute -\frac{6}{5} for it. Since b represents the y-intercept, substitute 3 for it. (Remember, the y-intercept is the point at which the line hits the y-axis. All points on the y-axis have an x-value of 0. Notice how the given point (0,3) has an x-value, too, so it must be the line's y-intercept.) This gives the following equation and answer:

y = -\frac{6}{5} x+3

3 0
3 years ago
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