$MathMaster logo$

MathMaster

Home
general
y x 2 8x 15 x 7

Question

Y=-x^2-8x-15 X=-7

216

likes

1082 views

Answer to a math question Y=-x^2-8x-15 X=-7

$Expert avatar$

4.7

97 Answers

$y=49-8\left(-7\right)-15$

$y=49-\left(-56\right)-15$

$y=49+56-15$

$y=105-15$

$y=90$

Frequently asked questions (FAQs)

Question: Convert 0.0000523 to scientific notation.

+

What is the value of sin(π/4) in radians?

+

What is the value of sin(45°) - cos(30°) + tan(60°) + cot(45°) when rounded to 4 decimal places?

+

New questions in Mathematics

a to the power of 2 minus 16 over a plus 4, what is the result?

-442/c+5=26 what is c?

The patient is prescribed a course of 30 tablets. The tablets are prescribed “1 tablet twice a day”. How many days does a course of medication last?

A circular park has a diameter of 150ft. A circular fence is to be placed on the edge of this park. Calculate the cost of fencing this park if the rate charged is $7 per foot. Use π = 3.14.

Given the vectors: a = (2m – 3n, 4n – m) and b = (2, -3), find the values of m and n that make: a = 5 b.

How many different ways can a psychology student select 5 subjects from a pool of 20 subjects and assign each one to a different experiment?

By direct proof, how can you prove that “The sum of any three consecutive even integers is always a multiple of 6”.

What is 28 marks out of 56 as a percentage

Task 1 angel has 3 quarters 3/8 of a tank of gasoline and Miguel 7/8, who has more gasoline? number line on number line

A storage maker price is $2.50 per square feet. Find the price of a custom shed 4 yards long, and 5yards wide and 8 feet tall

How to convert 45 kg into grams

What is the value of f(-3) for the function X squared+5x-8=

Write an expression using compatible numbers that can be used to estimate the quotient 629\86

question 1 Consider a sample space S, and two events A and B such that P(A ∩ B) = 0.2, P(A ∪ B) = 0.6, P(B ∪ ̄A) = 0.8 (a) [0.5 points] Calculate P (A). (b) [0.5 points] Calculate P (B)

f(r) = 1/r+9 find f(x^2) + 1

Paul invites 12 friends to his birthday. He wants to give 15 candies to everyone two. The candies are sold in packs of 25. How many should he buy? packages?

An invoice for €2,880 plus default interest of €48.40 was paid on October 28th. Interest rate 5.5%. When was the bill due?