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Wittaler [7]
3 years ago
9

Robin counts by 7 to 70. how many off numbers does robin say ?

Mathematics
1 answer:
timama [110]3 years ago
5 0

Answer:

10

Step-by-step explain

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A survey team is trying to estimate the height of a mountain above a level plain. From one point on the plain, they observe that
Alex73 [517]

Answer:  3528.25

Step-by-step explanation:Make a sideview sketch

you should have 2 triangles, one right-angled containing the height and a scalene triangle with angles 24° , 153° (the supplement of 27°) and 3°

the side opposite the 3° angle is 1000

by let the side opposite the 24° be x, (also the hypotenuse of the right-angled triangle)

x/sin24 = 1000/sin3

x = 1000sin24/sin3

let the height of the mountain be h

sin 27 = h/x

h = x sin27 = (1000sin24/sin3)(sin27)

= 3528.25

8 0
3 years ago
Find the missing value so that the<br> two points have a slope of 1/2. <br> (7,2) and (3,y)
creativ13 [48]

Answer:y=0

Step-by-step explanation:

slope=(y2 - y1) ➗ (x2 - x1)

1/2=(y-2) ➗ (3-7)

1/2=(y-2) ➗ -4

Cross multiplying we get

-4=2(y-2)

-4=2y-4

Collect like terms

-4+4=2y

0=2y

y=0

5 0
3 years ago
The expression 4^9 the number 9 is called the
MakcuM [25]
Exponent hope this helps m8
6 0
3 years ago
What is x^2-28-3x ? ( x^2 means x squares )
Verizon [17]

This is the way to solve the problem

3 0
4 years ago
Read 2 more answers
Find an equation of the line passing through the pair of points. Write the equation in the form Ax+By=C
Igoryamba

Answer:

<h2>11x - y = -79</h2>

Step-by-step explanation:

The standard form of an equation of a line:

Ax+By=C

The point-slope form of an equation of a line:

y-y_1=m(x-x_1)

m - slope

(x₁, y₁) - point

We have the points (-7, 2) and (-8, -9). Substitute:

m=\dfrac{-9-2}{-8-(-7)}=\dfrac{-11}{-1}=11

y-2=11(x-(-7))\\\\y-2=11(x+7)

Convert to the standard form:

y-2=11(x+7)           <em>use the distributive property </em>a(b + c) = ab + ac

y-2=11x+77            <em>add 2 to both sides</em>

y=11x+79           <em>subtract 11x from both sides</em>

-11x+y=79        <em>change the signs</em>

11x-y=-79

7 0
3 years ago
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