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2 years ago

Hiiii need help again :( sorry but uh it’s all in the pic <3

Mathematics

1 answer:

Ira Lisetskai [31]2 years ago

7 0

Answer:

Hello! Mizuki here to help

The correct answer would be B

Step-by-step explanation:

Number of people who didn't get flu and weren't vaccinated:115

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What is 3a+6b= 4 for b Really need help

saw5 [17]

3a+6b=4

-3a both sides

6b=4-3a

÷6 both sides

b=2/3 -1/2 a

5 0

3 years ago

WHATS THREE FOURTHS TIMES FIVE SEVENTHS?

schepotkina [342]

3/4 * 5/7 = 15/28 or 0.5357

8 0

3 years ago

Read 2 more answers

Work out 2/21 + 6/7 Give your answer in its simplest form.

olganol [36]

Answer:

2/21+6/7 = 20/21

Step-by-step explanation:

2/21+6/7

=2/21+(6*3/7*3)

=2/21+18/21

=20/21

Hope this helps! Comment any questions <3

4 0

2 years ago

Read 2 more answers

Annie is framing a photo with a length of 6 inches and a width of 4 inches. The distance from the edge of the photo to the edge

Ede4ka [16]

Answer:

Part a) The quadratic function is $4x^{2} +20x-39=0$

Part b) The value of x is $1.5\ in$

Part c) The photo and frame together are $7\ in$ wide

Step-by-step explanation:

Part a) Write a quadratic function to find the distance from the edge of the photo to the edge of the frame

Let

x----> the distance from the edge of the photo to the edge of the frame

we know that

$(6+2x)(4+2x)=63\\24+12x+8x+4x^{2}=63\\ 4x^{2} +20x+24-63=0\\4x^{2} +20x-39=0$

Part b) What is the value of x?

Solve the quadratic equation $4x^{2} +20x-39=0$

The formula to solve a quadratic equation of the form

$ax^{2} +bx+c=0$

is equal to

$x=\frac{-b(+/-)\sqrt{b^{2}-4ac}} {2a}$

in this problem

we have

$4x^{2} +20x-39=0$

$a=4\\b=20\\c=-39$

substitute in the formula

$x=\frac{-20(+/-)\sqrt{20^{2}-4(4)(-39)}} {2(4)}$

$x=\frac{-20(+/-)\sqrt{1,024}} {8}$

$x=\frac{-20(+/-)32} {8}$

$x=\frac{-20(+)32} {8}=1.5\ in$ -----> the solution

$x=\frac{-20(-)32} {8}=-6.5\ in$

Part c) How wide are the photo and frame together?

$(4+2x)=4+2(1.5)=7\ in$

5 0

3 years ago

The population P of birds in an area is modeled by the exponential model

Tems11 [23]

(B)Decreasing is the answer

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3 years ago