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3 years ago

Y= -5x-9 (slope) I NEED HELP

Mathematics

1 answer:

SCORPION-xisa [38]3 years ago

7 0

Answer:

-5 is the slope

Step-by-step explanation:

if there's a number in front of x, it's most likely the slope.

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Can someone double-check my work please?

natka813 [3]

Literally only the first one is correct.

8 0

3 years ago

The ratio of 7th graders to 6th graders kn the debate team is 3:2. There are a total of 30 debate team members. How many 6th gra

user100 [1]

Answer:

The answer is 18 on the 7th grade, 12 on the 6th grade.

Step-by-step explanation:

3x6=18
2x6=12

18+12=30

7 0

3 years ago

Annie tried to solve a problem step by step: 7.5 + k = 10 7.5 + k - 7.5 = 10 - 7.5 step 1 k = 2.5 step 2 Find Annie's mistake: A

Law Incorporation [45]

Answer:

Step-by-step explanation:

To isolate the variable k in the equation $7.5 + k = 10$ , we'd have to subtract 7.5 from both sides so we just had k on one side.

This is exactly what Annie did, and therefore, her answer is correct.

Hope this helped!

5 0

4 years ago

Read 2 more answers

Besties this is 100 points & i'll give brainliest istg i need to know this

diamong [38]

Answer:

$\displaystyle b = - 14$

$\displaystyle c = - 54$

Step-by-step explanation:

to figure out b we can consider the following formula:

$\displaystyle \frac{ - b}{2a} = h$

the form of vertex coordinate given by

$\displaystyle (h,k)$

so according to the question

$\displaystyle (h,k) = ( - 7, - 5)$

by order pair we obtain:

$\displaystyle h = - 7, k = - 5$

now substitute the value of h and a to the formula:

$\displaystyle \frac{ - b}{2(- 1)} = - 7$

simplify multiplication:

$\displaystyle \frac{ - b}{ - 2} = - 7$

cross multiplication:

$\displaystyle - b = 14$

divide both sides by -1:

$\displaystyle b = - 14$

now we need to figure out C to do so substitute -7 for x and -5 for y which yields:

$\displaystyle - {7}^{2} - 14( - 7) + c = - 5$

simplify square:

$\displaystyle -49 - 14( - 7) + c = - 5$

simplify multiplication:

$\displaystyle -49 + 98+ c = - 5$

simplify addition:

$\displaystyle 49+ c = - 5$

cancel 49 from both sides:

$\displaystyle c = - 54$

hence,

b=-14
C=-54

7 0

4 years ago

Read 2 more answers

Find the volume of this figure in cubic centimeters.

tankabanditka [31]

Answer:

7,680

Step-by-step explanation:

6 x 4 x 4 x 4 x 5 x 12 = 23040

23040/3 = 7,680

7 0

3 years ago