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NISA [10]
3 years ago
8

Urgent!! Pls help ASAP!!!

Mathematics
2 answers:
Lerok [7]3 years ago
7 0

area = bh / 2

Since you already know the area and height, the equation becomes:

150 = b(20) / 2

divide 150 by 20:

7.5

Now, multiply 7.5 by 2:

15

Now the equation is:

150 = (15)(20)/2

You can check your work by multiplying 15 by 20 and dividing the answer by 2 to insure that you get 150:

15 * 20 / 2 = 150

Your answer would be:

C. 15 cm

postnew [5]3 years ago
4 0
The answer is c ) 15 cm

a = (h×b)/2

a= (15×20)/2

a= 300/2

a= 150 cm²
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A construction team gives an estimate of three months to repave a large stretch of a very busy road with their core crew of 9 pe
Licemer1 [7]

Answer:

27

Step-by-step explanation:

9 crew members complete a job in 3 months

Number of crew members is inversely proportion to construction time :

Let :

Crew members = m

Construction time = t

m α 1 /t

m = k/t

m = 9 ; t = 3

9 = k /3

k = 27

If t = 1 (one month)

m =?

m = k/t

m = 27 / 1

Hence;

m = 27 * 1

m = 27 workers

6 0
2 years ago
What is f(-3) for the function f(a). =-2ax2-5a+4
Nataly_w [17]

The value of function f(x). =-2ax² -5a + 4 at a = -3 will be -23a + 2.

<h3>What is a function?</h3>

The machine will only accept specified inputs, described as the function's domain, and will potentially produce one output for each input.

For example y = sinx ,  y = x + 3 ets.

Given,

f(x)  = - 2ax² -5a + 4

x = -3

f(-3) =  - 2a(-3)² -5a + 4

f(-3) = -18a - 5a + 4

f(-3) = 23a + 2

Hence the value of function f(x). =-2ax² -5a + 4 at a = -3 will be -23a + 2.

For more about the function

brainly.com/question/23712366

#SPJ1

7 0
2 years ago
Read 2 more answers
Round $499.76 to the nearest dollar
dsp73

This is your answer:

if then number is $499.49 that would mean it rounds down to $499.00

but in your case $499.76 rounds to $500.00

(Remember .50 and up goes up!)

Therefor your answer is $500.00

7 0
3 years ago
Read 2 more answers
What is the equation of the polynomial function?
dolphi86 [110]

Answer:

f(x) = (1/2)(x-2)^2(x+1)(x+2)

Step-by-step explanation:

You can determine this by looking at the zeroes of the graph. For any zero that goes through the x-axis, the power of that zero is odd. For any zero that that "bounces" from the x-axis, the power of that zero is even.

Starting from left to right, we can see that the first zero, -2, goes through the x-axis. That means (x+2) is raised to an odd power. The second zero, -1, also goes through, so (x+1) is raised to an odd power. The last zero, 2, bounces off the x-axis, so (x-2) is raised to an even power. The only functions that satisfy this criteria are function 1 and 2.

However, we are not done yet. We need to figure out which multiplier value (1/2, 1/4) is correct. To do this, we plug in 0 for x, since we know that the y-intercept is 4. When we plug in 0, we see that f(0) = 4 for the first function. Therefore, the first function is the answer.

If you would like more tutoring in math or other subjects for FREE, check out growthinyouth.org.

7 0
3 years ago
Change the negative exponent<br> to a positive exponent
Ivan
I hope this picture helps.

3 0
3 years ago
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