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luda_lava [24]
3 years ago
11

What are the values of a and b?

Mathematics
1 answer:
Delicious77 [7]3 years ago
4 0
2 right triangles. Big and small.
Big. Small
Long leg 10. 8
Short leg b 6
Hypotenuse. (8+a) 10

10/b = 8/6
10*6 = 8*b
60 = 8b
60/8 = b
15/2 = b

10/(8+a) = 8/10
10*10 = 8(8+a)
100 = 64 + 8a
100 - 64 = 8a
36 = 8a
36/8 = a
9/2 = a

Answer : a) a=9/2, b=15/2
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Help me with this please it’s 3 grade
VikaD [51]

Answer:

10 more hotdogs were sold on Friday than Monday.

Step-by-step explanation:

On Monday the graph says that there were 10 hotdogs sold, on Friday it says that there were 20 sold

20-10=10, so 10 hotdogs more were sold

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Which statement could the expression n + 1 represent? one point greater than the last test grade the difference of Gina's score
sukhopar [10]

Answer:

A. One point greater than the last test grade.

Step-by-step explanation:

One point greater than the last test grade can be written as an expression:n + 1

The difference of Gina’s score and one can be written as an expression:

n - 1

The total cost less one dollar can be written as an expression: n - 1

One minute less than Mickey’s previous time can be written as an expression: n - 1

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X + 24 + 4 + 63 = 180
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x=89

Step-by-step explanation:

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A scale drawing of a rectangular park is 5 inches wide and 7 inches long. The actual park length is 280 yards. What is the width
Anastaziya [24]

Answer:

56,000

Step-by-step explanation:

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Can someone pls tell me how to do this?
gizmo_the_mogwai [7]
Ok don’t worry this is a very easy topic
It falls under “gradients of a straight line”
I’ll try my best to explain the question but u can find plenty of videos online (Fuse School or Cognito) explaining the topic in detail.

Gradient means slope or how steep a line is.
To find the gradient we use the formula

(Change in y) / (change in x)

*Step 1*
Choose any two coordinates (exact) of the line from the graph

For line 1 let’s take
(2,4) (-3,4)
Now from this
the change in y= (4-4) = 0
the change in x = (-3-2) = -5
So the gradient = 0/-5 = 0

*Now this makes sense because a straight horizontal line has no slope and thus has a gradient of zero. So even without all the calculation we can figure this out easily.

Now for line 2 let’s take the coordinates:
(-3,1) (-3,3)

The change in y= (3-1) = 2
The change in x = (-3- -3) = 0
So gradient = 2/0 = “Undefined”

*The gradient of vertical straight line is always undefined (no gradient)*
*The gradient of horizontal straight lines is always 0*

Hope this helped and best of luck for your exams!
3 0
3 years ago
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