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Neko [114]
4 years ago
10

Find area of a triangle with a base of 12 and height of 5a+7b Please help

Mathematics
1 answer:
nika2105 [10]4 years ago
4 0
1/2 (12)(5a+7b)
6(5a+7b)
30a + 42b -- I hope this helped
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.3% of what number is 4.8?
frutty [35]

Answer:

1600

Step-by-step explanation:

0.3% of 1600 will result to 4.8

6 0
3 years ago
What number falls between √60 and √75
Natalija [7]
To find the number halfway between 60 and 75, we use the following formula:

(X + Y)/2 = Halfway Between

When we enter 60 and 75 into our formula, we get:

(60 + 75)/2 = 67.5

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3 0
3 years ago
Prove that
Dovator [93]

Answer:

see explanation

Step-by-step explanation:

Using the trigonometric identities

secx = \frac{1}{cosx} , cosecx = \frac{1}{sinx}

cotx = \frac{cosx}{sinx} , tanx = \frac{sinx}{cosx}

Consider the left side

secA cosecA - cotA

= \frac{1}{cosA} × \frac{1}{sinA} - \frac{cosA}{sinA}

= \frac{1}{cosAsinA} - \frac{cosA}{sinA}

= \frac{1-cos^2A}{cosAsinA}

= \frac{sin^2A}{cosAsinA} ( cancel sinA on numerator/ denominator )

= \frac{sinA}{cosA}

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5 0
3 years ago
11. In circle H, if m3DHG = (11x - 36)* and m3GHF = (x + 12), find mDG.
Crazy boy [7]

Answer:

B. 187

Step-by-step explanation:

I think this is correct I took a test on this before

3 0
3 years ago
Read 2 more answers
Please help me Solve -2a -5>3
worty [1.4K]

Answer:

a < -4

Step-by-step explanation:

Step 1: Write out inequality

-2a - 5 > 3

Step 2: Add 5 to both sides

-2a > 8

Step 3: Divide both sides by -2

a < -4

Here, we can see that any value of <em>a </em>less than -4 works. So <em>a</em> could be -124 or -5, or even -1271293587923857 and it would work.

4 0
3 years ago
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