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hjlf
2 years ago
8

Pls help me pls I’ll give brainliest for right answer!

Mathematics
1 answer:
Serga [27]2 years ago
5 0

Answer: 122 ft and 12.77 m

Step-by-step explanation:

First question answer = 100/cos35 = 122.07 = 122 ft

Second question answer = 12/sin70 = 12.77 m

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A car can travel 28 miles per 1 gallon of gas. How far can the car travel on 14 gallons of gas​
-BARSIC- [3]

Answer:

392 miles in all.

3 0
3 years ago
2. Write a quadratic function that has -intercepts (- 3, 0) and (4, 0) and passes through the point (5, 8)
Reptile [31]

Answer:

f(x)=x^2-x-12

Step-by-step explanation:

<u>Quadratic Function</u>

Standard Form of Quadratic Function

The standard representation of a quadratic function is:

f(x)=ax^2+bx+c

where a,b, and c are constants.

When the zeros of f (x1 and x2) are given, it can be written as:

f(x)=a(x-x1)(x-x2)

Where a is a constant called the leading coefficient.

We are given the two roots of f: x1=-3 and x2=4, thus:

f(x)=a(x+3)(x-4)

We also know that f(5)=8, thus:

f(5)=a(5+3)(5-4)=8

Operating:

a(8)(1)=8

Solving:

a=1

The function is:

f(x)=1(x+3)(x-4)

Operating:

\boxed{f(x)=x^2-x-12}

5 0
2 years ago
Help!!!!!! Quick <br> Evaluate (x + y)° for x = -3 and y = 5.<br> - 1/2<br> 2<br> 1<br> O
MrMuchimi

Answer:

it is 1

Step-by-step explanation:

The power of 0 causes all numbers to negate to 1.
Anything to the power of 0 is 1


For example:

(10)^0 = 1

7 0
2 years ago
A study of the amount of time it takes a mechanic to rebuild the transmission for a 2005 Chevrolet Cavalier shows that the mean
iogann1982 [59]

Answer:

0.1469

Step-by-step explanation:

Given from the question;

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Standard deviation=1.8 hrs=δ

Sample size, n=40

Let  x=8.7

z=(x-μ)÷(δ÷√n)  

Find z(8.7)

z=(8.7-8.4)÷(1.8÷√40)

z={0.3×√40}÷1.8=1.05409

z=1.0541

Read from the  standard normal probabilities table

P(z>1.0541)

=0.1459

3 0
2 years ago
A crew of highway workers paved 2/15 mile in 20 minutes. If they work at the same rate, what portion of a mile will they pave in
USPshnik [31]
2 didved 15 times 2 see what you get that your anwers\

5 0
3 years ago
Read 2 more answers
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