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Inessa05 [86]
3 years ago
15

Help!!!!! Using the elimination method, what can you multiply the first equation by in order to eliminate "x"?

Mathematics
1 answer:
mariarad [96]3 years ago
4 0
B. 4

if you multiply -2 by 4 it will be -8x which is an additive inverse of 8x.
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How do i Solve this equation<br> √x+5-2=0
grigory [225]

Answer:

9

Step-by-step explanation:

√x+5-2=0

√x+3=0

√x= -3

x=9   [(-3)*(-3) = 9]

8 0
2 years ago
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A line segment ad, contains points b &amp; c such that c is between a and d, and b is between a and
egoroff_w [7]

If you drew out this line segment with the points in the order we are given them, the segment would be labeled as a, b, c, d in that order. We are given a measure for ab, and we are also given a measure for bd with c being ignored for a minute. The entire length of the segment can be found by adding ab and bd. 6 + 23 = ad and ad = 29. So the length of the whole segment is 29. We have the length of cd given to be equal to ab, so cd = 6. ab + bc + cd = ad and we are looking for bc. Since we have the other lengths and the length of the whole segment, we fill in accordingly: 6 + bc + 6 = 29. Solving for bc we get bc = 17.

3 0
3 years ago
Jill and Marcy go to an ice cream store where they have the option of getting a smoothie in either a cylindrical or rectangular
k0ka [10]

Answer: Jill got the larger smoothie and its volume is 1609.14 cubic cm.

Step-by-step explanation:

Since we have given that

Jill purchased the cylindrical container.

Height of container = 8 cm

Radius = 8 cm

So, volume of cylindrical container would be

\pi r^2h\\\\=\dfrac{22}{7}\times 8\times 8\times 8\\\\=1609.14\ cm^3

Marcy purchased the rectangular container.

Height of container = 8 cm

Width = 8 cm

Length = 8 cm

so, volume of rectangular container would be

l\times b\times h\\\\=8\times 8\times 8\\\\=512\ cm^3

Hence, Jill got the larger smoothie and its volume is 1609.14 cubic cm.

3 0
3 years ago
The length of the rectangle is 10.4cm. the perimeter of the rectangle is 28cm. calculate the area of the rectangle.
PilotLPTM [1.2K]

Answer:

37.44 cm²

Step-by-step explanation:

To find the width, follow these steps.

10.4*2=20.8

28-20.8=7.2

7.2/2=3.6

The width is 3.6.

To find the area, multiply the width and the length together.

10.4*3.6=37.44

The area of the rectangle is 37.44 cm²

Hope this helps!

5 0
2 years ago
Let g(x) = log7 (x),<br> find g ¹(0)
klasskru [66]

Step-by-step explanation:

The derivative of log is

\frac{d}{dx} ( log_{a}(x) ) =  \frac{1}{x \:  ln(a) }

You can easily derive this using the Change of base rule, and natural log rules

log_{a}(x)  =  \frac{ log_{e}(x) }{ log_{e}(a) }  =  \frac{ ln(x) }{ ln(a) }

Next, we differentiate with respect to x.

\frac{d}{dx} \frac{ ln(x) }{ ln(a) }  =  \frac{1}{ ln(a) }  \times  \frac{d}{dx}  ln(x)

=  \frac{1}{x ln(a) }

So back to the topic at hand,.

a=7, so we get

\frac{1}{x ln(7) }

We plug in 0, we would get undefined

6 0
2 years ago
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