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DIA [1.3K]
3 years ago
12

What is the first step in solving the equation 4b - 7 = 13.

Mathematics
1 answer:
krek1111 [17]3 years ago
6 0

Answer:

Add  7 to both sides of the equation [it would look like: 4b - 7 +7 = 13+7]

Step-by-step explanation:

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What are the opposites of 7, -3.5 , 2.25, and 9 1/3
Ber [7]
The opposite of 7 is -7, the opposite of -3.5 is 3.5, the opposite of 2.25 is -2.25, and the opposite of 9 1/3 is -9 1/3
7 0
4 years ago
A radio telescope has a parabolic surface, as shown below. If the telescope is 5 m deep and 40 m wide, how far is the focus from
Montano1993 [528]

Answer:

i think the answer is  8m

Step-by-step explanation:

4 0
4 years ago
Please help me with this
AysviL [449]

Answer:

Step-by-step explanation:

The formula for this is

x° = \frac{1}{2}(major arc - minor arc)

The measure around the outside of a circle is 360°.  We have the minor arc as 120°.  So the major arc is 360 - 120 = 240.  Fitting that into the formula:

x° = \frac{1}{2}(240 - 120)

x° = \frac{1}{2}(120)

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6 0
3 years ago
Write an equation that is perpendicular to y=3/5x-1 and passes through the point (9,14)
Leokris [45]

Answer:

y=(-5/3)x+29

Step-by-step explanation:

we will use the base formula y=mx+b

In order to be perpendicular, the slope must be the flipped fraction and have the opposite sign, so our m is (-5/3)

y=(-5/3)x+b

You can plug in the (9,14) point in order to find the b

14=(-5/3)(9)+b

14=(-45/3)+b

14=(-15)+b

14+15=b

29=b

and so altogether our equation is y=(-5/3)x+29

8 0
3 years ago
Don’t answer if you don’t know! Your question and account will be reported!
Mkey [24]

Answer:You can divide 54.50 by just 20% with it being 272.5

Step-by-step explanation: You can use it be fraction by dividing it by 20 then you have 2.725 which is the answer.

4 0
3 years ago
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