Ask question

Ask question

All categories

2 years ago

13

What is the answer to this?

2 answers:

emmainna [20.7K]2 years ago

8 0

<h3>Explanation:</h3>

<u>We know that:</u>

The y-intercept of an equation is the constant.
Constants are the <u>numerals</u> in the equation.

<u>Finding the y-intercept.</u>

In the equation provided, we can see only one <u>constant.</u>

=> y = 1x² + 7x - 5

Thus, the y-intercept is -5.

zepelin [54]2 years ago

4 0

To find the y-intercept substitute x as 0

$y = 1 \times {0}^{2} + 7 \times 0 - 5$

$y = 1 \times 0 + 0 - 5$

$y = 0 + 0 - 5$

$y = - 5$

<em>Thus, The y-intercept is -5...~</em>

You might be interested in

A plane takes off from an airport and flies at a speed of 400km/h on a course of 120° for 2 hours. the plane then changes its co

butalik [34]

Answer:

Distance from the airport = 894.43 km

Step-by-step explanation:

Displacement and Velocity

The velocity of an object assumed as constant in time can be computed as

$\displaystyle \vec{v}=\frac{\vec{x}}{t}$

Where $\vec x$ is the displacement. Both the velocity and displacement are vectors. The displacement can be computed from the above relation as

$\displaystyle \vec{x}=\vec{v}.t$

The plane goes at 400 Km/h on a course of 120° for 2 hours. We can compute the components of the velocity as

$\displaystyle \vec{v_1}=$

$\displaystyle \vec{v_1}=\ km/h$

The displacement of the plane in 2 hours is

$\displaystyle \vec{x_1}=\vec{v_1}.t_1=.(2)$

$\displaystyle \vec{x_1}=km$

Now the plane keeps the same speed but now its course is 210° for 1 hour. The components of the velocity are

$\displaystyle \vec{v_2}=$

$\displaystyle \vec{v_2}=km/h$

The displacement in 1 hour is

$\displaystyle \vec{x_2}=\vec{v_2}.t_2=.(1)$

$\displaystyle \vec{x_2}=km$

The total displacement is the vector sum of both

$\displaystyle \vec{x_t}=\vec{x_1}+\vec{x_2}=+$

$\displaystyle \vec{x_t}=km$

$\displaystyle \vec{x_t}=$

The distance from the airport is the module of the displacement:

$\displaystyle |\vec{x_t}|=\sqrt{(-746.41)^2+492.82^2}$

$\displaystyle |\vec{x_t}|=894.43\ km$

8 0

3 years ago

Please help i dont want to fail..

Margarita [4]

Answer: the answer is d pls give brainlEst

Step-by-step explanation:im sorry i guess my math was wronge

7 0

3 years ago

Read 2 more answers

The telephone operator has told Jed to deposit $.60 in how many ways can he do this using nickels dimes and quarters

romanna [79]

6 dimes, 12 nickles, 2 quarters and 2 nickles and 2 quarters and a dime.

There are many ways to do this.

4 0

3 years ago

Read 2 more answers

—7m<28 solve please hurry

mario62 [17]

Answer:

the answer is -4

Step-by-step explanation:

step 1: -7m<28

step 2: -7m÷ (-7)>28÷(-7)

step 3: m>28÷(-7)

step 4: m>-28÷7

step 5: m>-4

8 0

3 years ago

An arithmetic sequence has this recursive formula: (a^1 =8, a^n= a^n-1 -6

eduard

Answer:

$a_n = 8 + (n - 1) (-6)$

Step-by-step explanation:

Given

$a_1 = 8$

Recursive: $a_{n} = a_{n-1} - 6$

Required

Determine the formula

Substitute 2 for n to determine $a_2$

$a_{2} = a_{2-1} - 6$

$a_{2} = a_{1} - 6$

Substitute $a_1 = 8$

$a_2 = 8 - 6$

$a_2 = 2$

Next is to determine the common difference, d;

$d = a_2 - a_1$

$d = 2 - 8$

$d = -6$

The nth term of an arithmetic sequence is calculated as

$a_n = a_1 + (n - 1)d$

Substitute $a_1 = 8$ and $d = -6$

$a_n = a_1 + (n - 1)d$

$a_n = 8 + (n - 1) (-6)$

Hence, the nth term of the sequence can be calculated using $a_n = 8 + (n - 1) (-6)$

3 0

3 years ago