The sum of 2 times a number and 7 is equal to 6

Answer:

2 cm = 50 km

Find what the rate would be if 2 became 10 by dividing

10/2=5

multiply the 5 with the rate

5 x 50 = 250

250 km apart

hope this helps

Step-by-step explanation:

Answer:

45

Step-by-step explanation:

b and c are part of an 180 degrees angle.

You already have a 90 degrees angle

180-90=90

And since there are 2 angles

90/2=45

And b and c are vertical angles

Step-by-step explanation:

The solution to a system of equations given graphically is at the point of intersection of the 2 lines

it aint the ans but Atleast u can find it

Answer:

(-2, 4) and (4, -3)

Step-by-step explanation:

if it’s the one I think it is, then they intersect at 4 and -3 the other numbers are just background noise tbh bc this was the only choice with 4 and -3

Answer:

2x^2+4x-30=0

Step-by-step explanation:

2x^2+10x-6x-30=0

2x(x+5)-6(x+5)=0

(2x-6)(x+5)=0

2x-6=0        x+5=0

x=6/2          x=-5

x=3

Answer:

Step-by-step explanation:

[tex]2x^2+4x-30=0\\<=> x^2+2x-15=0[/tex]

so we know that the sum of the two solutions is -2 and the multiplication -15

so we are looking for x so that

x+3=-2 and 3x=-15

it gives x = -5

another way to do it is to put (x-3) in factor as we know that 3 is one of the solutions it gives

[tex]2x^2+4x-30 = 2(x-3)(x+5)[/tex]

and then the second solution is -5

Answer:

A. a cone with a volume of 32 cubic feet

Step-by-step explanation:

Answer: 30 dominoes in total.

Step-by-step explanation:

Each line is 21 inches long.

the space between dominoes is 1 + 1/2 inches.

(assuming that the distance includes the domino itself) Now, we need at least two dominoes to see this distance,

The we have N + 1 dominoes per line, and the distance is:

N*(1 + 1/2)inches = 21 inches

If we find N, we can find the number of domineoes in each line:

N = 21/(1 + 1/2) = 14

This means that we have 14  + 1 = 15 dominoes in each line, and we have two lines, so we have 30 dominoes in total.

Answer: 465 π

Step-by-step explanation:

Hi, to answer this question we have to apply the next formula:  

Volume of a cylinder (V): π x (diameter /2) ² x height  

Replacing with the values given and solving for v (Volume)  

V = π x (6/2)²x 50

V = 450π

And then for the bottom part:

Volume of a cone = 1/3 x π x (diameter/2)^2 x height  

Replacing with the values given:  

V = 1/3 π (6/2) ^2 (5) = 15π

Finally we add the volumes:

450π+15π = 465 π

In conclusion, the volume of the solid is 465π m3.  

Feel free to ask for more if needed or if you did not understand something  

Answer:

2.4 hours

Step-by-step explanation:

after an hour the distance between them will be 80+70=150 miles

1 hour  .......150 m

x hours .......360 m

x*150=360

x=360/150

x=2.4 hours

Answer: 2.4 hours

Step-by-step explanation:

Distance = speed x time

1st train = 80t

2nd train = 70t

80t + 70t = 360

t = 360/150 = 2.4 hours

Answer:

A) Yes. The shared side, image, provides enough information for SAS.

Step-by-step explanation:

Answer:

-6 ≤y≤9

Step-by-step explanation:

The range is the values for the outputs

The range is from -6 inclusive to 9 inclusive

-6 ≤y≤9

Answer:

eqn : 9 x 9 x h = 1620

h = 1620 / 81 = 20

Step-by-step explanation:

Answer:

Step-by-step explanation:

The temperature falls from 0 degrees to -12.4

0-(-12.4) = 12.4

12.4/13.4 degree per hours

0.9185 degrees/ hour

Answer:

Step-by-step explanation:

a=-2

r=10/-2=-5

[tex]s_{14}=a\frac{r^n-1}{r-1} \\=-2\frac{(-5)^{14}-1}{-5-1} \\ =\frac{1}{3}(5^{14}-1)\\=\frac{6103515625-1}{3}\\=\frac{6103515624}{3}\\=2034505208[/tex]

Basically, the question is asking you if there’s any outliers. An outlier is a data point that seems to not follow the other data points. The outlier here is at about (8, 8000). This point does not follow the negative trend of the other points.

Answer:

Step-by-step explanation:

A: if both 6 and 3 are red then the probability for a red is 2/6 or 1/3, if only 3 or 6 is a red then it is 1/6

B: spinning a 1 is 1/6 probability

C: spinning an odd number is 3/6 or 1/2 as half of the numbers are odd

D: 0 probability as there are no 9

Answer:

You can graph it using desmos, a free graphing calculator available on your computer, or you can rearrange the equation into a y intercept form, y=mx+b

Step-by-step explanation:

-4y=-12-3x

y=3+(3/4)x

y=(3/4)x+3

Answer:

its graph D

Step-by-step explanation:

got a 100 in the test

Answer:

Please post the figure or image of the triangular prisms.

Step-by-step explanation:

Answer:

45 mph

Step-by-step explanation:

hope it helps!

Answer:

14°

Step-by-step explanation:

→Since the temperature is a negative number, for the degree to reach 0, you must add with the same number.

→The temperature is -14, so to get it to 0, you add 14:

-14 + 14 = 0

Answer: 14 degrees

Step-by-step explanation:

-14 + x = 0

Answer:

I believe it's 4,080

Step-by-step explanation:

you just add the two numbers

Answer:

4,080

Explanation:

Add how many feet she was when she started to how many feet she hiked.

959 + 3,121

4,080

Therefore, her elevation is now 4,080 feet above sea level.

Answer:

alternet interior angles i think?

Step-by-step explanation:

Angles between transversal of parallel lines are related by several angle theorems.

The theorem that supports r || s and transversal q is (b) alternate interior angles theorem

From the image of lines q, r and s (see attachment), we have the following highlights.

Angles 3 and 6; angles 4 and 5, are alternate interior angles, and they are congruent

The above means that:

Angles 2 and 7; angles 1 and 8, are also congruent

Hence, r || s and q is a transversal, because of the alternate interior angle theorem.

Read more about parallel lines and transversal at:

https://brainly.com/question/16967505

Answer:

[tex] \boxed{4 \sqrt[8]{ {d}^{3} } } [/tex]

Step-by-step explanation:

[tex] = > 4 {d}^{ \frac{3}{8} } \\ \\ = > 4({d}^{3 \times \frac{1}{8} }) \\ \\ = > 4( {d}^{3} \times {d}^{ \frac{1}{8} } ) \\ \\ = > 4( {d}^{3} \times \sqrt[8]{d} ) \\ \\ = > 4 \sqrt[8]{ {d}^{3} } [/tex]

Answer:

B

Step-by-step explanation:

B is correct because it includes 5 and everything higher than that. There needs to be at least 5 more people signing up, and this number line is the only one that shows that, since it includes 5 and more.

Answer:

Trapezoid.

Step-by-step explanation:

That is a trapezoid ( in the UK a trapezium).

There is a pair of parallel sides.

Answer:

35

Step-by-step explanation:

[tex]6^2 - 1\\36-1\\35[/tex]

Answer:

B

Step-by-step explanation:

The notation ⊥ means the 2 lines are perpendicular, which by definition means they intersect at a 90 degree angle.

Answer:

It's true

Step-by-step explanation:

The lines intersect where f(x) = g(x)

hope it helps!

Answer:

Amy worked for 128 hours while Brayden worked for 112 hours

Step-by-step explanation:

Given

Let A represents Amy and B represents Brayden

A = 16 + B ------(1)

A:B = 8:7------- (2)

Required

Find A and B;

Convert (2) to fractions

[tex]\frac{A}{B} = \frac{8}{7}[/tex]

Cross Multiply

[tex]7 * A = 8 * B[/tex]

[tex]7A = 8B[/tex]

Substitute A = 16 + B in the above expression

[tex]7(16 + B) = 8B[/tex]

Open Bracket

[tex]7 * 16 + 7 * B = 8B[/tex]

[tex]112 + 7B = 8B[/tex]

Subtract 7B from both sides

[tex]112 + 7B - 7B = 8B - 7B[/tex]

[tex]112 = B[/tex]

[tex]B = 112[/tex]

Recall that A = 16 + B

Hence, [tex]A = 16 + 112[/tex]

[tex]A = 128[/tex]

This implies that Amy worked for 128 hours while Brayden worked for 112 hours

Answer:

100 divided by 40 is 14

Step-by-step explanation:

just dived 100 by 40 is 14 then add  7 to 14 they give you 21